| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423229000 | Ethanolamine | 22 |
| 20100003177 | HEAT RECOVERY GAS ABSORPTION PROCESS - Apparatus comprising an absorber device provided with a plurality of sequentially adjacent sections for flowing a gas stream therethrough. A conduit infrastructure comprising a section configured to ingress, communicate with and egress from each section of the absorber device, and a recovery and regeneration section, is configured with a plurality of heat exchange and cooling equipment. A process wherein a liquid solvent provided with at least one chemical compound selected for reacting with the selected gaseous component, is counter-flowed against and commingled with the gas stream. The liquid solvent temperature is controllably manipulated between each section of the column to provide: (a) thermodynamic-driven mass transfer at the front end of the absorber device, and (b) kinetic-driven mass transfer at the back end of the absorber device. The heat generated during the recovery of the gaseous component from the absorption liquid solvent system is recovered for use in regenerating solvent system. | 01-07-2010 |
| 20100061904 | CO2 ABSORPTION METHOD - A method for removing CO | 03-11-2010 |
| 20110008229 | SULFUR RECOVERY PLANT TAIL GAS TREATMENT PROCESS - A process for the removal of hydrogen sulfide from a gas stream in which the gas stream is first passed through a Claus unit operating at a sub-stoichiometric ratio (H | 01-13-2011 |
| 20110014100 | Carbon Sequestration Using Ionic Liquids - A process to capture and sequester an impurity gas from a fluid stream. The impurity gas capture is accomplished by contacting the fluid stream with an impurity removing mixture, the mixture comprising an ionic liquid and an amine compound under conditions sufficient to reduce the amount of impurity gas from said fluid stream. The captured impurity gas is sequestered by reacting the impurity gas with a sequestration material. | 01-20-2011 |
| 20110262330 | ALKANOLAMINE-BASED CARBON DIOXIDE ABSORPTION SOLUTIONS WITH REDUCED CORROSIVITY - An aqueous carbon dioxide-absorbent solution comprising at least one alkanolamine and at least one quaternary ammonium salt is disclosed. A method of recovering carbon dioxide from a carbon dioxide-containing gaseous mixture and a method of reducing metal corrosion in an alkanolamine-based exhaust gas treating process are also disclosed. | 10-27-2011 |
| 20120014853 | NEW PROCESS FOR RECOVERING CO2 FROM REGENERATION FLUE GAS COMING FROM A CATALYTIC CRACKING UNIT - The invention describes an integrated process for capturing CO | 01-19-2012 |
| 20120063980 | Alkanolamine CO2 Scrubbing Process | 03-15-2012 |
| 20120082604 | CONTAMINANT-TOLERANT SOLVENT AND STRIPPING CHEMICAL AND PROCESS FOR USING SAME FOR CARBON CAPTURE FROM COMBUSTION GASES - A contaminant-tolerant hybrid scrubbing solvent is provided for post-combustion CO | 04-05-2012 |
| 20120230896 | REMOVAL OF CARBON DIOXIDE FROM COMBUSION EXHAUST GASES - The invention relates to an absorbent, comprising an aqueous solution (A) of at least one amino acid salt of the formula (I), wherein R | 09-13-2012 |
| 20120237421 | Method for Removing CO2 From Exhaust Gases, Such as Exhaust Gases From Plants for Producing Raw Iron or Exhaust Gases From Syngas Plants - A method for the removal of CO | 09-20-2012 |
| 20120251421 | PROCESSES FOR REDUCING NITROSAMINE FORMATION DURING GAS PURIFICATION IN AMINE BASED LIQUID ABSORPTION SYSTEMS - Acid gas purification processes for reducing nitrosamine precursor formation from a gas stream containing NOx, wherein the acid gas is selectively absorbed in an amine based wash solution comprising at least one secondary diamine. The processes generally include absorbing carbon dioxide from the gas stream containing NOx species with the amine-based wash solution comprising at least one secondary diamine to provide a carbon dioxide lean gas stream that is released into the surroundings, wherein absorbing the acid gas forms a rich amine solution; and regenerating the rich amine solution at an elevated temperature to release the carbon dioxide to form a regenerated lean amine solution, wherein absorbing and regenerating are configured to promote formation of carbamate species of at least one diamine. | 10-04-2012 |
| 20120288429 | Bi-Directional Reactor and Supported Monoethenalamine for CO2 Separation - The invention generally relates to a bi-directional reactor and supported amine sorbent, and more particularly to a method and system for carbon dioxide sequestration utilizing a bi-directional reactor and monoethenalamine (MEA) on a substrate. The bi-directional reactor is configured to reclaim the sorbent material as the sorbent is immobilized during the sorption phase, but is mobilized during desorption phased. The immobilized sorbent reacts with the desired contaminate to absorb and is transported to another reactor during desorption phase, thereby permitting reclamation of the sorbent. | 11-15-2012 |
| 20130309155 | METHOD FOR REMOVING HEAT STABLE BASE SALTS FROM A CONTAMINATED BASIC SOLUTION, AND USE THEREOF IN A PROCESS FOR RECOVERING ACID GAS FROM AN ACID GAS STREAM - A method for removing heat stable base salts, such as amine salts, is disclosed. The method of the present invention can be used to reduce the level of heat stable salts in a solvent gas stream in an acid gas removal process. A solvent in which the lean acid gas loading is high is first stripped to achieve an acceptable lean gas loading. The lean solution is then reclaimed using one or more methods. The purified base or amine solution can be used again to remove acid gases from a gas stream. A process for recovering acid gas from an acid gas stream is also disclosed. The process also comprises a reduction of the level of heat stable salts in the solvent gas stream. | 11-21-2013 |
| 20140017153 | N-FUNCTIONALIZED IMIDAZOLE-CONTAINING SYSTEMS AND METHODS OF USE - Systems containing imidazoles or blends of imidazoles and amines are described herein. Methods of their preparation and use are also described herein. The methods of using the systems include the reduction of volatile compounds from gas streams and liquid streams. | 01-16-2014 |
| 20150050203 | SYSTEM AND PROCESS FOR CAPTURE OF ACID GASSES AT ELEVATED PRESSURE FROM GASEOUS PROCESS STREAMS - A system, method, and material that enables the pressure-activated reversible chemical capture of acid gasses such as CO | 02-19-2015 |
| 20150132207 | COMPLEX AMINE ABSORBENT, AND DEVICE AND METHOD FOR REMOVING ONE OR BOTH OF CO2 AND H2S - An absorbent is prepared by dissolving in water 1) monoethanolamine (MEA) and 2) a primary amine represented by the following formula (1) and having high steric hindrance. Releasability of CO | 05-14-2015 |
| 20150147254 | PROCESS FOR SELECTIVELY REMOVING HYDROGEN SULPHIDE FROM GASEOUS MIXTURES AND USE OF A THIOALKANOL FOR SELECTIVELY REMOVING HYDROGEN SULPHIDE - A process for selectively removing hydrogen sulphide relative to carbon dioxide from a gaseous mixture containing at least hydrogen sulphide H | 05-28-2015 |
| 20150290580 | METHOD FOR SELECTIVE ABSORPTION OF HYDROGEN SULFIDE FROM A GASEOUS EFFLUENT COMPRISING CARBON DIOXIDE USING AN AMINE-BASED ABSORBENT SOLUTION COMPRISING A VISCOSIFYING AGENT - The invention is a method for selectively removing hydrogen sulfide H | 10-15-2015 |
| 20150321138 | METHOD FOR REMOVING ACID COMPOUNDS FROM A GASEOUS EFFLUENT USING AN ABSORBENT SOLUTION BASED ON 1,2-BIS(2-DIMETHYLAMINOETHOXY)ETHANE AND AN ACTIVATOR - The invention relates to a method for removing acid compounds contained in a gaseous effluent having a CO | 11-12-2015 |
| 20150336045 | Carbon Dioxide Absorbent Based On Amine Having Nitrile Functional Group, and Carbon Dioxide Absorption Method and Separation Method Using Same - The present invention relates to a method for using, as a carbon dioxide absorbent, a secondary amine having a nitrile group, that is, a 3-(alkylamino)propionitrile compound. The absorbent based on the 3-(alkylamino)propionitrile compound and the carbon dioxide absorption method and separation method using same, according to the present invention, not only have an excellent carbon dioxide absorption capacity and a rapid carbon dioxide absorption rate, but also allow absorbent regeneration even at a considerably low temperature compared with a conventional alkanolamine-based absorbent and thus can significantly reduce the entire energy consumption required for an absorption process, and can also prevent recovered carbon dioxide from being contaminated with moisture and absorbent vapor, owing to the low regeneration temperature. | 11-26-2015 |
| 20150352482 | Method for treating sulphur-containing exhaust gases and device thereof - A method for treating sulfur-containing exhaust gases is provided, comprising the following steps: step i): mixing the sulfur-containing exhaust gases, air, and a hydrocarbon fuel, and controlling a reaction between the air and the hydrocarbon fuel therein, to obtain a procedure gas stream comprising the sulfur-containing exhaust gases, hydrogen, and carbon oxides; step ii): controlling a hydrogenation reaction between the hydrogen contained in the procedure gas stream and a sulfur-containing substance in the sulfur-containing exhaust gases, to obtain hydrogenated tail gases containing hydrogen sulfide; and step iii): absorbing the hydrogen sulfide contained in the hydrogenated tail gases with an absorbing agent to obtain purified tail gases. | 12-10-2015 |
| 20150367277 | Alkanolamine-Based Carbon Dioxide Absorbent Containing Polyalkylene Glycol Monomethyl Ether, and Carbon Dioxide Absorption Method and Separation Method Using Same - The present invention relates to the use of an aqueous solution as a carbon dioxide absorbent, the aqueous solution containing a tertiary dialkylalkanolamine as a primary absorbent, a secondary alkanolamine as a rate enhancer, and polyalkylene glycol monomethyl ether as a regeneration promoter. The alkanolamine-based carbon dioxide absorbent containing polyalkylene glycol monomethyl ether and the carbon dioxide absorption method and separation method using same, according to the present invention, not only have an excellent carbon dioxide absorption capacity and a rapid carbon dioxide absorption rate, but also have a remarkably low absorbent regeneration temperature compared with a conventional alkanolamine-based absorbent and thus can significantly reduce the entire energy consumption required for an absorption process, and can also prevent recovered carbon dioxide from being contaminated with moisture and absorbent vapor, owing to the low regeneration temperature. | 12-24-2015 |
