| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423567100 | Elemental sulfur | 54 |
| 20100150817 | METHOD FOR GENERATING MICRONIZED SULPHUR - A method of producing micronized sulphur wherein elemental sulphur is dissolved in a solvent for sulphur to produce a sulphur-solvent solution and precipitation of the dissolved sulphur is effected or controlled by manipulation of at least one of pressure, temperature or water content in the solvent to produce the micronized sulphur. | 06-17-2010 |
| 20110033370 | SYSTEM AND METHOD FOR SULFUR RECOVERY - Disclosed herein are various types of systems and methods for the efficient production of sulfur from a sulfur-laden gas. The system described herein includes a desulfurization unit, a regenerator receiving sulfurized mass from the desulfurization unit, a sulfur recovery unit, a sulfur track in fluid communication with the regenerator and the sulfur recovery unit, and a sulfur concentrator on a sulfur track. The sulfur stream coming out of the regenerator is concentrated using the sulfur concentrator and converted into a sulfur product at the sulfur recovery unit. | 02-10-2011 |
| 20110044884 | HYDROGEN PRODUCTION FROM HYDROGEN SULFIDE - The present subject matter is directed to plasma dissociation of fluidic hydrogen sulfide to hydrogen and sulfur. A reactor is configured to have a plasma discharge and a vortex flow pattern. The plasma discharge provides energy to the hydrogen sulfide disassociation reaction and the vortex flow pattern helps to cause the condensation of sulfur molecules. The condensation of sulfur molecules helps to reduce the amount of energy input required to disassociate a certain amount of hydrogen sulfide. Additionally, the reactor may be configured to have a vortex flow pattern that provides for a recirculation zone in which relatively warm reaction products may exchange their heat energy with relatively cool input fluids. | 02-24-2011 |
| 20110044885 | Process for Obtaining Sulfur from Feed Gas Containing H2S - The invention relates to a method for production sulfur from an input gas comprising H | 02-24-2011 |
| 20110206601 | System and Method for Sulfur Recovery - A sulfur recovery system for recovering sulfur from a sulfur plant feed stream including a first sulfur removal system and a second sulfur removal system. The system includes a sulfur plant feed inlet to the first sulfur removal system, the sulfur plant feed inlet being capable of providing a sulfur plant feed stream at a first pressure. One or more oxidizing gas inlets are arranged and disposed to combine at least one oxidizing gas stream with the sulfur plant feed stream to form a combustion gas for combustion in the first sulfur removal system at a second pressure. A flow restriction device is operably configured to control an operating pressure in one or both of the first sulfur removal system and the second sulfur removal system. A gas processing plant and method for recovering sulfur from a sulfur plant feed stream are also disclosed. | 08-25-2011 |
| 20130052122 | PROCESS TANK FOR PRODUCING INSOLUBLE SULFUR - A process tank for producing insoluble sulfur comprising a tank body having an upper half portion, a lower half portion, a first end and a second end along the longitudinal axis; an inner semi-cylinder body inside the upper half portion; and a first filter plate in the lower half portion. The space between the inner semi-cylinder body and the tank body is a sandwich structure, and an inner cavity independent of the sandwich structure is provided inside the tank body. The first filter plate is wavelike in the cross section which separates from the inner cavity a first filter liquid cavity. A first liquid outlet communicating with the first filter liquid cavity is provided on the tank body. | 02-28-2013 |
| 20130071315 | CONFIGURATIONS AND METHODS OF TREATMENT OF SULFUR-CONTAINING VENT GASES - Sulfur emissions from liquid sulfur are reduced, or even entirely avoided by degassing the liquid sulfur at pressure in an out-of-pit vessel and by sweeping the rundown pit (or vessel) with a sweep gas that is non-poisonous for a hydrogenation catalyst. Acid gases from degassing are fed at pressure to the Claus unit, while sweep gases are fed to the tail gas treatment unit to substantially recycle the acid gases to extinction. In preferred plants and methods, motive fluids and booster eductors or compressors are not needed, and incineration of the acid gases can be avoided. | 03-21-2013 |
| 20130230448 | Method of Generating Micronized Sulphur - A method of producing micronized sulphur wherein elemental sulphur is dissolved in a solvent for sulphur to produce a sulphur-solvent solution and precipitation of the dissolved sulphur is effected or controlled by manipulation of at least one of pressure, temperature or water content in the solvent to produce the micronized sulphur. | 09-05-2013 |
| 20140193324 | MICRONIZED SULPHUR POWDER AND METHOD OF PRODUCTION OF SAME - A process is provided for the production of a micronized sulphur powder product as well as a micronized sulphur cake intermediate. Production of the micronized sulphur powder using this process, which comprises preparation of a micronized sulphur emulsion from molten sulphur and a dispersant solution, from which the dispersant solution is subsequently removed, produces a product superior quality, and the method of production itself has enhanced safety and economic attributes. | 07-10-2014 |
| 20140308198 | PROCEDURE FOR THE PREPARATION OF SULPHUR-BASED ARTICLES OF MANUFACTURE - The present invention relates to a process for the preparation of articles of manufacture made of or based on sulphur, which comprises cooling of liquid sulphur in a volume of containment until the sulphur mass solidifies and forming of the product, characterised in that elastic pressure waves are applied to the cooling mass of liquid sulphur to produce a crystalline suspension of solid sulphur in liquid sulphur. | 10-16-2014 |
| 423569000 | Reducing sulfur dioxide by carbon containing material | 1 |
| 20120321548 | THERMAL REDUCTION OF SULFUR DIOXIDE TO SULFUR WITH TEMPERATURE CONTROLLED FURNACE - Processes for the thermal reduction of sulfur dioxide to elemental sulfur are described and disclosed. The processes described include three general reaction sections, including the reaction furnace portion where the SO | 12-20-2012 |
| 423571000 | Reacting a sulfide | 34 |
| 20090162270 | PROCESS FOR DISSOLVING SULFUR ORE USING DIARYL DISULFIDE - Embodiments of a sulfur extraction process comprise treating mined sulfur ore with a disulfide oil to dissolve the sulfur in the ore. The process occurs at a temperature less than a temperature sufficient to melt sulfur. The sulfur crystals may be isolated by cooling the dissolved sulfur to a temperature sufficient to crystallize the sulfur. An apparatus for extracting sulfur from sulfur ore comprises a first receptacle for contacting a disulfide oil with mined sulfur ore at an elevated temperature sufficient to dissolve sulfur, a second receptacle coupled to the first receptacle for cooling dissolved sulfur such that sulfur crystals form, and a filtration apparatus coupled to the second receptacle for isolating the sulfur crystals. Solvents used in the apparatus may be recycled. | 06-25-2009 |
| 20110262345 | Method for downhole sulfur removal and recovery - Sulfur sought to be removed from deposits formed at a subterranean gas producing well is dissolved in a high boiling point relatively pure and low cost non-aqueous solvent. The dissolved sulfur is then removed from the solvent by lowering the temperature of the solution to precipitate the sulfur which is then separated and recovered as a relatively pure product. After additional processing the regenerated solvent is injected back down the well hole to dissolve additional sulfur and reutilized in successive cycles of the process. An amine or solubilizing agent may be added to the non-aqueous solvent, and an oxidizing agent may be provided during the process to oxidize polysulfides to sulfur. | 10-27-2011 |
| 423572000 | With steam to form hydrogen sulfide | 1 |
| 20120308474 | Process for The Production of Sulfur from Sulfur Dioxide with Tail Gas Recycle - The reduction of the gas stream containing sulfur dioxide to elemental sulfur is carried out by reacting a reducing gas, such as natural gas, methanol or a mixture of hydrogen and carbon monoxide, with recycled sulfur and recycled tail gas to produce a stream containing hydrogen sulfide that may be reacted with the gas stream that contains sulfur dioxide. Gas streams with a molar concentration of sulfur dioxide from 1 to 100% may be processed to achieve nearly 100% sulfur recovery efficiency. | 12-06-2012 |
| 423573100 | Hydrogen sulfide | 31 |
| 20090238750 | INTEGRATED PROCESS FOR THE PRODUCTION OF HYDROGEN FROM HYDROGEN SULPHIDE - A process to efficiently remove sulfur compounds from a hydrocarbon stream in a refinery operation includes the production and recycle of hydrogen from the sulfur compounds. The sulfur compounds present in the hydrocarbon cut are converted to hydrogen sulphide which is split to hydrogen and sulfur in a non-thermal plasma reactor. | 09-24-2009 |
| 20100266483 | PROCESS FOR DESULPHURIZATION OF A GASEOUS EFFLUENT COMPRISING A DEVICE FOR ON-LINE ANALYSIS AND CONTROL - The invention concerns a process for desulphurization of a gaseous effluent containing hydrogen sulphide using a Claus treatment unit followed by a Claus tail gas treatment unit (TGT), said process comprising using a device for on-line analysis of the ratio H | 10-21-2010 |
| 20120213694 | H2S CONVERSION TO SULFUR USING A REGENERATED IODINE SOLUTION - Systems and methods of removing sulfur from a gas stream comprising hydrogen sulfide (H | 08-23-2012 |
| 423574100 | With sulfur dioxide | 19 |
| 20090004096 | Cos-Claus Configurations and Methods - Carbonyl sulfide (COS) from a COS-containing stream ( | 01-01-2009 |
| 20100098618 | SULFUR REMOVAL FROM GASES - A process is disclosed for removing/recovering sulfur from a gas stream using a Claus-type reactor followed by contact with a regenerable sorbent and recycle of SO | 04-22-2010 |
| 20110171115 | Method and Consolidated Apparatus for Recovery of Sulfur from Acid Gases - An improved method and consolidated apparatus for recovery of sulfur from acid gases using the modified-Claus process and Claus tail gas treating process of the hydrogenation/amine absorption type as classically practiced in the oil & gas industry. By implementing innovations to the acid gas processing strategy a wider range of feedstocks can be processed and improved performance is seen when processing conventional feedstocks; in addition, through consolidation and integration of the typical practice an improved apparatus is realized. | 07-14-2011 |
| 20110280795 | METHOD AND SYSTEM FOR RECOVERING SULFUR IN THE THERMAL STAGE OF A CLAUS REACTOR - A method and system are presented for the combustion of hydrogen sulfide mixed with other gases for simultaneous recovery of sulfur and energy from hydrogen sulfide at higher efficiency. The amounts and velocity of the hydrogen sulfide into the reactor is selected in such a way that it is not possible to burn the hydrogen sulfide in a normal thin reaction zone during its combustion that normally prevails in almost all flame combustion devices. The injected hydrogen sulfide gas is mixed in a thermal reactor with fresh air and hot active combustion gases in the reactor on account of internal jet pump effect and self-induced entrainment. The reaction is exothermic so that the chemical energy present in hydrogen sulfide is recovered together with the sulfur that is tapped off from he process. The reactor process can also be used for other gas and chemicals that require controlled reactor thermo-chemical environment. Various reactors are shown capable of controlling the formation of a thermal distribution flow pattern based on the position and position and direction (and other factors) regarding fluid introduction within a combustion chamber of the reactors. | 11-17-2011 |
| 20110300059 | PROCESS FOR GAS SWEETENING - A process for treating a gas stream comprising hydrogen sulphide, the process comprising the steps of: (i) mixing a first gas stream comprising hydrogen sulphide with a second stream comprising sulphur dioxide to produce a combined stream, whereby elemental sulphur is produced by a reaction between the hydrogen sulphide and the sulphur dioxide; (ii) removing elemental sulphur, and optionally water, from the combined stream; and (iii) oxidising at least some of the elemental sulphur to form sulphur dioxide for use in the second stream, wherein, the reaction is conducted at a temperature of from 15 to 155° C. and a pressure of at least 3 MPa. | 12-08-2011 |
| 20120237438 | Adaptive Control System for a Sulfur Recovery Process - Control of a process for producing free sulfur from hydrogen sulfide is accomplished by manipulating the flow rate of a feed stream containing oxygen to a furnace in such a manner that a desired proportion of the hydrogen sulfide fed to the furnace is converted to sulfur dioxide. Combustion of hydrogen sulfide is precisely controlled by the proposed system to maintain the hydrogen sulfide and sulfur dioxide concentrations in the tail gas at acceptable levels to minimize the environmental pollution. | 09-20-2012 |
| 20120251436 | Process of conversion of hydrogen sulfide into elemental sulfur on solid oxide catalysts - To minimize the inhibitory effect of sulfur on the oxidation of hydrogen sulfide with oxygen in a gas stream on the solid catalysts, first, the elemental sulfur content in the gas stream is reduced to less than 3.0 mg/l, preferably 0.3 mg/l, and second, the temperature in the oxidation reactor is maintained so that the relative vapor pressure of sulfur in it remains less than 0.25, preferably less than 0.1. The removal of sulfur from the gas stream by washing it with water or aqueous solution decreases the ignition temperature of the process to 155-160° C. Because of this the initial concentration of H | 10-04-2012 |
| 20130011330 | DEVICE AND METHOD FOR CONDENSING, SEPARATING, AND STORING LIQUID SULFUR IN A CLAUS PLANT - A device for condensing, separating, and storing sulfur in a Claus plant. having a Claus furnace, waste heat boiler, and Claus reactor. Plant parts are supported on a floor or comparable device, and an immersion chamber is provided below the Claus plant and optionally also below a device arranged upstream for gas scrubbing. The immersion chamber receives the sulfur in a siphoning manner, wherein the excess sulfur flows at least 4.00 meters deeper from the immersion chamber into a ground-level container in which the immersion chamber is arranged. The invention further relates to a method, by means of which liquid sulfur is conducted into an immersion chamber, wherein the immersion chamber is arranged at a height level below the waste heat boiler and the Claus reactor so that the liquid sulfur reaches the immersion chamber without further pumping and overcomes a height difference of at least 4.00 meters. | 01-10-2013 |
| 20140294719 | SULFUR REMOVAL METHODS - A method for removing sulphur from a fluid by the steps of providing a first fluid comprising a sulphur-containing compound; adsorbing the sulphur of sulphur-containing compound onto an adsorbent; regenerating the adsorbent by oxidation of the adsorbed sulphur to sulphur dioxide thereby yielding an off-gas stream comprising sulphur dioxide; providing a second fluid comprising hydrogen sulphide, using the second fluid and the off-gas stream as reactants in a Claus process for producing elemental sulphur, wherein a part of hydrogen sulphide provided by the second fluid is oxidized to sulphur dioxide and water at reaction temperature, the residual hydrogen sulphide, the resulting sulphur oxide and the sulphur oxide provided by the off-gas stream are converted to elemental sulphur, the oxygen required for the oxidation of the hydrogen sulphide provided by the second fluid is provided by an air stream, and the off-gas stream dilutes the second fluid in the Claus process. | 10-02-2014 |
| 20150078984 | METHOD FOR CONTROLLING THE TEMPERATURE IN THE COMBUSTION FURNACE OF A CLAUS UNIT - The invention relates to a method for reducing the nitrogen content in the oxygenous oxidation gas of a Claus plant, by which control of the temperature in the combustion furnace of a Claus plant can be achieved, by combusting a sulphurous acid gas in a Claus combustion furnace so that a sulphur dioxide-containing product gas is obtained, from which a part-stream is branched off, which, as determined by a measured value, is recycled to the oxygenous oxidation gas so to avoid an undesired temperature increase in the combustion furnace, when, occasionally, an acid gas which is very rich in sulphur is fed to the combustion furnace of a Claus plant, and to at the same time achieve a reduction of the nitrogen content in the Claus tail gas. | 03-19-2015 |
| 20150132213 | SULFUR RECOVERY UNIT - A sulfur recovery unit for processing an acid gas feed to recover elemental sulfur, the sulfur recovery unit comprising a reaction furnace configured to burn the acid gas feed, an oxygen source, and a fuel gas to create a furnace outlet stream, the acid gas feed comprises hydrogen sulfide which is converted to elemental sulfur, a waste heat boiler configured to capture heat from the furnace outlet stream to create a cooled stream, a condenser configured to condense the cooled stream to produce a waste gas stream and a condensed stream comprising elemental sulfur, a thermal oxidizer configured to burn the waste gas stream to create a sulfur dioxide rich stream, and a sulfur dioxide scrubbing unit configured to remove the amount of sulfur dioxide from the sulfur dioxide rich stream to create an effluent stream and a recycle stream recycled to the reaction furnace. | 05-14-2015 |
| 20150291421 | Generating Elemental Sulfur - Techniques for generating elemental sulfur are provided herein. The disclosed methods may include a gas processing system including a processed feed gas. The methods may include a distillation column configured to receive the processed feed gas and to generate a high-pressure acid gas stream. The methods may include a reactor configured to partially combust the high-pressure acid gas stream to generate a limiting reactant. The methods may include a plurality of reactors configured with a shell side and a plurality of reaction tubes, where a reaction between the high-pressure acid gas stream and the limiting reactant produces a partially-reacted high-pressure acid gas containing elemental sulfur. The methods may include a plurality of condensers configured to condense the elemental sulfur. The methods may include a plurality of separators configured to separate out the partially-reacted high-pressure acid gas stream to recover elemental sulfur. | 10-15-2015 |
| 20150376007 | PROCESS FOR DEGASSING CONDENSED SULFUR FROM A CLAUS SULFUR RECOVERY SYSTEM - A process of producing degassed liquid sulfur using process gas containing H | 12-31-2015 |
| 20150376008 | PROCESS FOR DEGASSING CONDENSED SULFUR FROM A CLAUS SULFUR RECOVERY SYSTEM - A process of producing degassed liquid sulfur using agitation gas to agitate the liquid sulfur being degassed while in contact with a degassing catalyst. Process gas may be blended with the agitation gas wherein the process gas contains H | 12-31-2015 |
| 20160145502 | INTEGRATED HYDROCARBON DESULFURIZATION WITH OXIDATION OF DISULFIDES AND CONVERSION OF SO2 TO ELEMENTAL SULFUR - A process to produce a sulfur-free hydrocarbon product stream from a liquid hydrocarbon disulfide product, e.g., of the Merox Process, includes subjecting the hydrocarbon disulfide to a catalytic oxidation step to produce SO | 05-26-2016 |
| 423574200 | In inorganic liquid | 2 |
| 20140377164 | PROCESS FOR IN-SITU PRODUCTION OF LOW DISSOLVED HYDROGEN SULFIDE, DEGASSED, SULFUR FROM CLAUS SULFUR RECOVERY - A process of producing degassed liquid sulfur within a horizontal sulfur condenser may include condensing a portion of a Claus process gas introduced into a condenser tube to produce liquid sulfur; creating first and second chambers above a liquid sulfur reservoir with a baffle; passing the liquid sulfur and the Claus process gas into the first chamber; forcing the Claus process gas from the liquid reservoir within the first chamber to the second chamber; causing a chemical reaction between dissolved hydrogen sulfide in the liquid sulfur and sulfur dioxide from the Claus process gas on a catalyst to produce elemental sulfur and reducing the dissolved H | 12-25-2014 |
| 20140377165 | PROCESS FOR DEGASSING CONDENSED SULFUR FROM A CLAUS SULFUR RECOVERY SYSTEM - A process of producing degassed liquid sulfur using process gas containing H2S to agitate the liquid sulfur being degassed while in contact with a degassing catalyst. Process gas is less costly and less complicated and quickly accomplishes substantial degassing rendering the liquid sulfur much safer in storage and transportation. | 12-25-2014 |
| 423575000 | Utilizing organic solvent or absorbent | 1 |
| 20150298972 | SULFUR RECOVERY PROCESS FOR TREATING LOW TO MEDIUM MOLE PERCENT HYDROGEN SULFIDE GAS FEEDS WITH BTEX IN A CLAUS UNIT - An enrichment apparatus and process for enriching a hydrogen sulfide concentration in an acid gas stream to create a hydrogen sulfide rich stream for feed to a Claus. The enrichment apparatus comprises a hydrocarbon selective separation unit operable to separate the acid gas stream into a hydrocarbon rich stream and a purified acid gas stream, wherein the acid gas stream comprises hydrogen sulfide, carbon dioxide, and hydrocarbons, a hydrogen sulfide selective separation unit operable to separate the purified acid gas stream to create the hydrogen sulfide rich stream and a hydrogen sulfide lean stream, the hydrogen sulfide rich stream having a concentration of hydrogen sulfide, and the Claus unit operable to recover sulfur from the carbon dioxide lean stream. The enrichment apparatus can include a carbon dioxide selective separation unit in fluid communication with the hydrogen sulfide selective separation unit, operable to separate the hydrogen sulfide rich stream. | 10-22-2015 |
| 423576000 | Utilizing promotor containing silica or aluminum | 1 |
| 20090010834 | Process for the Thermal Reduction of Sulfur Dioxide to Sulfur - Processes for the thermal reduction of sulfur dioxide to elemental sulfur are described and disclosed. The processes described include three general reaction sections, including the reaction furnace portion where the SO | 01-08-2009 |
| 423576200 | With specified procedure for sulfur recovery or specified conditions for producing sulfur in more recoverable form | 6 |
| 20080311030 | Apparatus and Method for Operating the Apparatus for Continuously Recovering Sulfur from Gas Containing H2s - In an apparatus for continuously recovering sulfur from a gas stream containing 0.1 to 3.0 vol-% H | 12-18-2008 |
| 20110020212 | Method and Apparatus for Degasification of Claus-Derived Sulfur - A method and apparatus for degasification of Claus-derived sulfur by the use of gas-liquid eductor using the liquid sulfur as the ejector motive force and ambient sweep air as the active degassing agent combined with a static mixer and packed bed for promoting the intimate contact of the air and the sulfur. | 01-27-2011 |
| 20110268650 | METHODS AND APPARATUS FOR SULFUR RECOVERY FROM ACID GASES - Apparatus and methods for recovering sulfur from acid gases. Acid gases containing relatively high amounts of carbonyl sulfide and/or one or more types of mercaptans can be treated in a sulfur recovery system employing an acid gas enrichment zone and a tail gas treatment zone, where partially-loaded sulfur absorbing solvent from the tail gas treatment zone is employed for sulfur absorption in the acid gas enrichment zone. Off-gas from the acid gas enrichment zone can be combined and hydrogenated with a sulfur recovery unit tail gas thereby increasing the total amount of sulfur recovery from the initial acid gas. | 11-03-2011 |
| 20120076721 | HYDROGEN SULFIDE CONVERSION TO HYDROGEN - A process and system for substantially eliminating contaminants from a gas and a gas produced therefrom. | 03-29-2012 |
| 20140017162 | SULFUR RECOVERY UNIT AND SULFUR RECOVERY METHOD - A sulfur recovery unit comprising: a reaction furnace configured to carry out a high-temperature Claus reaction between hydrogen-sulfide-containing gas and oxygen-containing gas introduced to the reaction furnace; a sulfur condenser configured to cool reaction gas discharged from the reaction furnace and condense sulfur contained in the reaction gas; and a pipe that connects the reaction furnace to the sulfur condenser, wherein the reaction furnace is fixed to the ground; and the sulfur condenser and the pipe are arranged so as to be able to move relative to the reaction furnace. | 01-16-2014 |
| 20160167964 | TREATMENT OF GASES | 06-16-2016 |
| 423576800 | By reacting gaseous feed with gas containing free oxygen | 3 |
| 20130022534 | PROCESS FOR WORKUP OF A CARBON DIOXIDE-RICH GAS TO BE FREED OF SULFUR COMPONENTS - A process for workup of an industrial carbon dioxide-rich gas to be freed of sulfur components, in which an industrial gas to be freed of sulfur components is purified by a gas scrubbing, and the laden solvent is freed of carbon dioxide and hydrogen sulfide by a regeneration to obtain at least one acid gas fraction having a relatively high content of sulfur components, and the fraction with the highest hydrogen sulfide (H | 01-24-2013 |
| 20140134096 | ZERO EMISSIONS SULPHUR RECOVERY PROCESS WITH CONCURRENT HYDROGEN PRODUCTION - Disclosed is a process for the concurrent production of hydrogen and sulphur from a H | 05-15-2014 |
| 20170232287 | Catalyst and Process for Treatment of Fluid Comprising an Oxidizable Contaminant | 08-17-2017 |
| 423578100 | Purifying crude sulfur | 6 |
| 20090136414 | Method for downhole sulfur removal and recovery - Sulfur sought to be removed from deposits formed at a subterranean gas producing well is dissolved in a high boiling point relatively pure and low cost non-aqueous solvent. The dissolved sulfur is then removed from the solvent by lowering the temperature of the solution to precipitate the sulfur which is then separated and recovered as a relatively pure product. After additional processing the regenerated solvent is injected back down the well hole to dissolve additional sulfur and reutilized in successive cycles of the process. An amine or solubilizing agent may be added to the non-aqueous solvent, and an oxidizing agent may be provided during the process to oxidize polysulfides to sulfur. | 05-28-2009 |
| 20100021371 | Sulfur Refining Process - A process comprising contacting a solvent with a sulfur stream comprising sulfur and a contaminant, separating the sulfur from at least some of the contaminant and at least some of the solvent, thereby producing a decontaminated sulfur stream, contacting the decontaminated sulfur with a washing agent, and separating the sulfur from at least some of the washing agent, thereby producing a purified sulfur stream comprising elemental sulfur. | 01-28-2010 |
| 20110182802 | Reactor, A Structure Packing, and a Method for Improving Oxidation of Hydrogen Sulfide or Polysulfides in Liquid Sulfur - Disclosed is a reactor, a structured packing, and a method for increasing the rate of decomposition of polysulfides and oxidation of polysulfides and hydrogen sulfide in liquid sulfur. The reactor, the structured packing, and the method involve a structured packing for contacting a first stream and a second stream in a reactor including a catalyst. The catalyst increases the rate of decomposition of polysulfides and oxidation of polysulfides and hydrogen sulfide in the liquid sulfur of the first stream with the second stream. The first stream includes liquid sulfur containing polysulfides and dissolved hydrogen sulfide. The second stream includes an oxygen-containing gas. | 07-28-2011 |
| 20120148479 | Reactor, a Retained Catalyst Structure, and a Method for Improving Decomposition of Polysulfides and Removal of Hydrogen Sulfide in Liquid Sulfur - Disclosed is a reactor, a retained catalyst structure, and a method for increasing the rate of decomposition of polysulfides and removal of hydrogen sulfide in liquid sulfur. The reactor, the retained catalyst structure, and the method include a retained catalyst structure arranged and disposed for contacting a first stream and a second stream in a reactor including a catalyst. The catalyst increases the rate of decomposition of polysulfides and facilitates the removal of hydrogen sulfide in the liquid sulfur of the first stream with the second stream. The first stream includes liquid sulfur containing polysulfides and dissolved hydrogen sulfide. The second stream includes an inert gas or a low oxygen-containing gas. | 06-14-2012 |
| 20140065057 | SULFUR DEGASSER APPARATUS AND METHOD - A novel system and method for degassing H | 03-06-2014 |
| 20140348741 | PROCESS AND APPARATUS FOR TREATING A SULPHUR-CONTAINING OFF-GAS FROM A SULPHUR RECOVERY SYSTEM - The invention relates to a process and apparatus for recovering sulfur ( | 11-27-2014 |
| 423578400 | From liquid or solid compound | 3 |
| 20100178236 | Sulfur Collection Systems and Processes with Integrated Degassing - Systems and methods for the collection of liquid sulfur with integrated degassing are described, wherein the system and methods include the use of one or more liquid jet pumps or eductors employing a pumped liquid sulfur recycle stream as motive fluid to boost sulfur rundown pressure. The new invention eliminates piping constraints inherent with conventional gravity flow, thus permitting location of the sulfur collection vessel above ground and remote from the sulfur recovery unit. In addition, the described methods provide entrainment and enough agitation in the liquid sulfur such that simultaneously degassing occurs within the sulfur collection piping and associated systems described herein. The instant systems and methods are integrated with the degassing system, meaning that the sulfur will be initially degassed during the collection process, and then further degassing occurs by the methods described herein. | 07-15-2010 |
| 20110142747 | THREE PHASE SULFUR SEPARATION SYSTEM WITH INTERFACE CONTROL - A liquid separator system having a gas phase zone, an aqueous phase zone and a denser liquid zone is used to separate mixtures of fluids. The separator can be used for separating molten sulfur from liquid redox solution or reslurry water. The system includes a vessel with a top part and a bottom part. The vessel has a larger diameter at the top part than at the bottom part. The system also includes an inlet for introducing a redox solution or reslurry water and molten sulfur, which is denser than redox solution or reslurry water, into the vessel. An outlet near the bottom part of the vessel allows a flow of the molten sulfur from the vessel. An interface control structure senses an interface level between the redox solution or reslurry water and the molten sulfur, and the interface control structure controls the flow of molten sulfur from the outlet. The interface control structure is adjusted to optimally alter the vertical height of the interface level within the vessel so that the residence time of the molten sulfur in the vessel does not decrease as the sulfur production throughput decreases, and so that the interface area of the molten sulfur and the redox solution is reduced as the sulfur throughput decreases. A pressure controller monitors the pressure in the vessel and adds or removes gas from a gas phase zone in the vessel to maintain a predetermined pressure regardless of the vertical height of the interface. | 06-16-2011 |
| 20130330266 | RECOVERY OF SULFUR FROM SULFUR-CONTAINING WASTE - The invention provides an environmentally friendly industrial process for treating sulfur-containing waste, resulting in recovered pure sulfur and a sulfur-free ash for landfilling. | 12-12-2013 |
