| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 208237000 | With organic reagent | 22 |
| 20080302704 | Process For Removal Of Sulfur From Components For Blending Of Transportation Fuels - A process is disclosed for removing highly deleterious non-basic nitrogen compounds upstream from an acid catalyzed thiophene alkylation process using adsorbents capable of adsorbing the non-basic nitrogen compounds. | 12-11-2008 |
| 20090288992 | Desulfurization of hydrocarbons by ionic liquids and preparation of ionic liquids - The present invention relates to an ionic liquid compound of general formula C | 11-26-2009 |
| 20100051509 | Halogen-free ionic liquids in naphtha desulfurization and their recovery - Ionic liquids of the general formula C | 03-04-2010 |
| 20110005974 | HYDROTREATING CATALYST SULPHIDING AGENT AND ITS USE FOR IN SITU AND EX SITU PRESULPHIDATION - The present invention relates to a sulphiding agent for a hydrotreating catalyst which makes possible faster sulphiding of the catalyst but which also makes possible to very significantly limit solid deposits, in particular of sulphur. | 01-13-2011 |
| 208238000 | Hydrocarbon containing | 3 |
| 20120152808 | PROCESS FOR UPGRADING HYDROCARBON FEEDSTOCKS USING SOLID ADSORBENT AND MEMBRANE SEPARATION OF TREATED PRODUCT STREAM - A process for upgrading hydrocarbon oil feedstreams employs a solid adsorption material to lower sulfur and nitrogen content by contacting the hydrocarbon oil, with a solid adsorbents in a mixing vessel; passing the slurry to a membrane separation zone to separate the solid adsorption material with the adsorbed sulfur and nitrogen compounds from the treated oil; recovering the upgraded hydrocarbon product having a significantly reduced nitrogen and sulfur content as the membrane permeate; mixing the solid adsorbent material with aromatic solvent to remove and stabilize the sulfur and nitrogen compounds; transferring the solvent mixture to a fractionation tower to recover the solvent, which can be recycled for use in the process; and recovering the hydrocarbons that are rich in sulfur and nitrogen for processing in a relatively small high-pressure hydrotreating unit or transferring them to a fuel oil pool for blending. | 06-21-2012 |
| 20140014557 | PROCESS FOR DESULPHURIZATION OF PETROLEUM OIL - A process for desulphurization of petroleum oil, comprising the step of diluting the feed oil with a suitable organic solvent prior to the desulphurization reaction, is disclosed. The organic solvent is selected from alkanes, alkenes, cyclic alkenes and alkynes, and particularly selected from n-hexane, cyclohexane, heptane, pentene, hexene, heptene, octene, toluene and xylene. The solvent concentration in the mixture of feed oil and solvent is in the range of 0.1-70%. | 01-16-2014 |
| 20140332447 | PROCESS AND SYSTEM FOR TREATING OIL SANDS PRODUCED GASES AND LIQUIDS - The present disclosure provides a process and system for removing at least a portion of organosulfur compounds from an oil sands produced gas and transferring the organosulfur compounds to a bitumen-based liquid. One example of the system includes an absorber to contact the gas with an amount of liquid hydrocarbon sufficient to absorb some of the organosulfur compounds, producing an organosulfur enriched liquid hydrocarbon. The system includes a separator that accepts the organosulfur enriched liquid hydrocarbon and an emulsion that includes water and the bitumen-based liquid. The separator separates produced water from a bitumen-based mixture of organosulfur enriched liquid hydrocarbon and bitumen-based liquid. The system adds an amount of additional liquid hydrocarbon to separate the produced water from the bitumen-based mixture when the amount of liquid hydrocarbon added is less than the amount of liquid hydrocarbon needed to separate the produced water from the bitumen-based mixture. | 11-13-2014 |
| 208239000 | Heavy metal soap containing | 1 |
| 20110139686 | METHOD OF REMOVING HYDROGEN SULFIDE - The invention provides a method of removing sulfides from viscous petroleum streams such as asphalt, crude oil, and oil slurry using zinc octoate in which the molar ratio of zinc complexed with octanoic acid is not 1:2. Because zinc has a +2 charge and carboxylic acid has a −1 charge, it was previously assumed that all zinc octoates must have a 1:2 ratio of zinc moieties to carboxylic acid. Zinc octoate formulations however, that contain a non 1:2 ratio, and those with 2.1:3 to 1.97:3 in particular, have in fact been shown to work better. In addition, these non 1:2 formulations have lower viscosity and therefore are easier to use than the previous formulations including a 1:2 ratio. | 06-16-2011 |
| 208240000 | Oxygen containing | 14 |
| 20100012554 | Selective Catalysts For Naphtha Hydrodesulfurization - Naphtha is selectively hydrodesulfurized with retention of olefin content. More particularly, a CoMo metal hydrogenation component is loaded on a silica or modified silica support in the presence of an organic additive to produce a catalyst which is then used for hydrodesulfurizing naphtha while retaining olefins. | 01-21-2010 |
| 20100133148 | Selective Catalysts For Naphtha Hydrodesulfurization - The invention relates to a catalyst for hydrodesulfurizing naphtha, to a method for preparing said catalyst and to a method for hydrodesulfurizing naphtha using said catalyst. More particularly, the catalyst comprises a Co/Mo metal hydrogenation component on a silica support having a defined pore size distribution and at least one organic additive. The catalyst has high dehydrosulphurisation activity and minimal olefin saturation when used to hydrodesulfurize FCC naphtha. | 06-03-2010 |
| 20110011771 | SULFOXIDATION CATALYSTS AND METHODS AND SYSTEMS OF USING SAME - Catalysts amenable to oxidizing sulfur compounds and systems and methods of using these catalysts to effect the removal of sulfur from crude oil and crude oil distillates are disclosed. The catalyst is disposed with a titanyl moiety which serves to selectively coordinate sulfur compounds and affect their oxidation. The titanyl may be bound within a polymer or on the surface of a polymer or on the surface or in the pores of an inorganic support. The resulting oxidized sulfur compounds are readily separated from the initial crude oil or crude oil distillate streams by traditional separation techniques arrayed as described in the systems and methods disclosed. | 01-20-2011 |
| 20120055849 | Process for Oxidative Desulfurization and Sulfone Management by Gasification - A method and apparatus for upgrading a hydrocarbon feedstock is provided. The method includes the steps of (a) supplying a hydrocarbon feedstock to an oxidation reactor, wherein the hydrocarbon feedstock is oxidized in the presence of a catalyst under conditions sufficient to selectively oxidize sulfur compounds present in the hydrocarbon feedstock; (c) separating the hydrocarbons and the oxidized sulfur compounds by solvent extraction; (d) collecting a residue stream that includes the oxidized sulfur compounds; and (e) supplying the residue stream to a gasifier to produce a syngas stream and a hydrogen sulfide stream. | 03-08-2012 |
| 20120067782 | HYDROGEN SULFIDE SCAVENGER COMPOSITIONS, METHODS FOR MAKING AND PROCESSES FOR REMOVING HYDROGEN SULFIDE FROM LIQUID HYDROCARBON MEDIA - A method for reducing the amount of hydrogen sulfide present in liquid hydrocarbon media while minimizing the amount of corrosion in processing equipment contacting the liquid hydrocarbon media. The method includes neutralizing a glyoxal solution and dispersing the neutralized glyoxal solution in the liquid hydrocarbon media. The neutralized glyoxal solution is dispersed within the liquid hydrocarbon media not more than 10 days after the glyoxal solution has been neutralized. A hydrogen sulfide scavenging composition and method for making are also provided. | 03-22-2012 |
| 20120067783 | HYDROGEN SULFIDE SCAVENGER COMPOSITIONS, METHODS FOR MAKING AND PROCESSES FOR REMOVING HYDROGEN SULFIDE FROM LIQUID HYDROCARBON MEDIA - A method for reducing the amount of hydrogen sulfide present in liquid hydrocarbon media while minimizing the amount of corrosion in processing equipment contacting the liquid hydrocarbon media. The method includes adjusting a glyoxal solution to a pH of from about 2.5 to about 6.0 and dispersing the adjusted glyoxal solution in the liquid hydrocarbon media. A hydrogen sulfide scavenging composition and method for making are also provided. | 03-22-2012 |
| 20130240409 | Additive Composition and Method for Scavenging Hydrogen Sulfide in Hydrocarbon Streams - The present invention relates to hydrogen sulfide scavenging additive composition comprising glyoxal and a polymer compound which is polymer made from propylene oxide, which is capable of scavenging or removing hydrogen sulfide in hydrocarbons or hydrocarbon streams without causing any problem. The present invention is also relates to a method of scavenging hydrogen sulfide employing present scavenging additive composition comprising glyoxal and a polymer compound which is polymer made from propylene oxide. The present invention is also relates to a method of using hydrogen sulfide scavenging additive composition comprising glyoxal and a polymer compound which is polymer made from propylene oxide. | 09-19-2013 |
| 20140001099 | PROCESS FOR REMOVING SULFUR COMPOUNDS FROM VACUUM GAS OIL | 01-02-2014 |
| 20140190870 | SYNERGISTIC H2S SCAVENGER COMBINATION OF TRANSITION METAL SALTS WITH WATER-SOLUBLE ALDEHYDES AND ALDEHYDE PRECURSORS - The use of a composition including a transition metal salt and at least one water-soluble aldehyde or water-soluble aldehyde precursor scavenges H | 07-10-2014 |
| 20140231311 | LOW VISCOSITY METAL-BASED HYDROGEN SULFIDE SCAVENGERS - A composition useful for scavenging hydrogen sulfide by admixing metal carboxylates which have high viscosity due to polymerization and a viscosity improver selected from the group consisting of glycol ethers having from about 4 to about 10 carbons and alkyl alcohols having from about 1 to about 4 carbons. | 08-21-2014 |
| 20140305845 | METAL CARBOXYLATE SALTS AS H2S SCAVENGERS IN MIXED PRODUCTION OR DRY GAS OR WET GAS SYSTEMS - A transition metal carboxylate scavenger may be used to scavenge contaminants from systems from mixed production and/or gas, either dry or wet hydrocarbon gas. The contaminants scavenged or otherwise removed may include, but are not necessarily limited to, H | 10-16-2014 |
| 20140339136 | METHODS FOR UPGRADING OF CONTAMINATED HYDROCARBON STREAMS - A method of upgrading a heteroatom-containing hydrocarbon feed by removing oxidized-heteroatom contaminants is disclosed. The method includes contacting the oxidized-heteroatom-containing hydrocarbon feed with a caustic and a selectivity promoter, and removing the heteroatom contaminants from the heteroatom-containing hydrocarbon feed. | 11-20-2014 |
| 20160075954 | Method & Apparatus for the Purification of a Hydrocarbon-Containing Stream - A method for removing sulfolane from hydrocarbon streams by serial separation using raffinate wash column and at least one raffinate wash drum. The separation may be particularly useful in retrofitting existing separation facilities to produce motor fuels meeting the specifications requiring lower sulfolane content. A method is provided for the purification of a hydrocarbon-containing stream having a sulfolane therein. The method includes separating a first sulfolane-depleted stream from a hydrocarbon stream in a first counter-current separation unit and then separating a second sulfolane-depleted stream from the first sulfolane-depleted stream in a second counter-current separation unit. The first and second counter-current separation units are preferably different and chosen from a raffinate wash column or at least one raffinate wash drum. An apparatus for performing the methods is also described. | 03-17-2016 |
| 20190144761 | NITROGEN-FREE HYDROGEN SULFIDE SCAVENGERS | 05-16-2019 |
