1
Rolf Wetzel, Bernhard Firnhaber: Method of producing methanol synthesis gas. Krupp Koppers, Michael J Striker, February 19, 1991: US04994093 (229 worldwide citation)

In accordance with a method of producing of methanol synthesis gas from a partial oxidation crude gas, the gas is cooled after a waste heat boiler of a gasifier by adding a converted circulating gas in a quenching zone. The resulting gas mixture is dedusted and then separated into a product gas part ...


2
Ameen Jameil, Furbush Seymour A: Acid gas removal from gas mixtures. Allied Chemical Corporation, July 27, 1971: US3594985 (79 worldwide citation)

An improved solvent and process for treating and separating acid gas, particularly hydrogen sulfide from gas mixtures containing the same, such as natural gas mixtures containing hydrogen sulfide, carbon dioxide and methane. The process involves the use of a solvent comprising a mixture of dimethyl ...


3
Jamil Anwer, Ira Norman Banchik, Gerhard Wilhelm Bode, Werner Lemberg, Kuldip Kumar Sud: Process for gasifying solid carbonaceous fuel. Bamag Verfahrenstechnik, Morton Bernard Brown Roberts & Sutherland, April 12, 1977: US04017272 (74 worldwide citation)

A process for continuously gasifying carbonaceous material using fluidizing medium and oxygen-containing gas, under controlled feed rates and certain delivery conditions, and under selective processing conditions to produce a product rich in carbon monoxide and hydrogen is provided. If desired, the ...


4
Frederick C Jahnke, William P Volk: Removal of acidic gases in a gasification power system with production of hydrogen. Texaco, Harold J Rodman & Rodman Delhommer, July 18, 2000: US06090356 (73 worldwide citation)

This invention is an integrated process which removes acidic gases such as H.sub.2 S, COS and CO.sub.2 from raw synthesis gas. The H.sub.2 S and COS is concentrated and separately recovered. The separately recovered CO.sub.2 is used as a moderator with the purified syngas in a combustion turbine. Th ...


5
Graboski Michael S, Donath Ernest E: Combined shift and methanation reaction process for the gasification of carbonaceous materials. The United States of America represented by the Secretary of the, Price Jr Stanley J, September 9, 1975: US3904386 (73 worldwide citation)

A process for the gasification of coal and other carbonaceous materials to produce a methane rich fuel gas includes the combination of the shift and methanation reactions in a single reactor system. A hot raw synthesis gas comprising methane, hydrogen, hydrogen sulfide, and oxides of carbon passes f ...


6
Charles W Matthews: Fluid bed coal gasification. Gulf Oil Corporation, July 27, 1976: US03971639 (66 worldwide citation)

A process and apparatus for gasifying coal to produce carbon monoxide and hydrogen in which a first stream of coal is burned without bed formation in a combustion zone in the presence of water under oxidation conditions to produce gases containing carbon dioxide and steam. A second stream of coal is ...


7
Glenn E Warnaka, John M Zalas: Active attenuation of noise in a closed structure. Lord Corporation, Wood Herron & Evans, December 31, 1985: US04562589 (61 worldwide citation)

This invention is directed to a system for the active acoustic attenuation of noise produced in the interior of an enclosure by a source of noise which in one aspect comprises input sensing operable to sense the source noise to be attenuated, cancellor adapted to produce noise 180.degree. out of pha ...


8
Charles P Marion: Production of clean HCN-free synthesis gas. Texaco Development Corporation, Robert A Kulason, Carl G Ries, Albert Brent, February 19, 1980: US04189307 (60 worldwide citation)

Clean HCN-free synthesis gas is produced from raw synthesis gas leaving a partial-oxidation gas generator by a continuous process comprising the steps of partial cooling, scrubbing with condensate, cooling below the dew point by indirect heat exchange preferably with a rich liquid absorbent from a d ...


9
Michael Blumenfeld, Vincent Liu, Bernd Mielke, Marcus Michel: Method for extracting hydrogen from a gas that contains methane, especially natural gas, and system for carrying out said method. Uhde, Collard & Roe P C, March 23, 2010: US07682597 (54 worldwide citation)

The invention relates to a method for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer (4) by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtai ...


10
Harry Cheung: Split stream methanation process. Union Carbide Corporation, A H Fritschler, November 25, 1980: US04235044 (53 worldwide citation)

A synthesis gas stream having a H.sub.2 /CO ratio of less than 3/1 is split, with one stream being subjected to water gas shift essentially to completion, adjusted with a portion of the other stream to a carbon monoxide content of about 3-6% by volume, and reacted in an adiabatic methanation zone. T ...