Utilization of synthesis gas produced by mixed conducting membra

Details Utilization of synthesis gas produced by mixed conducting membra Utilization of synthesis gas produced by mixed conducting membra

1998-09-21

2000-08-29

Langel, Wayne

Chemistry: fischer-tropsch processes; or purification or recover

With preliminary reaction to form hydrogen or a carbon oxide

Water utilized in the preliminary reaction

252373, 423652, C01B 326

Patent

active

061109797

ABSTRACT:
Hydrocarbon feedstocks are converted into synthesis gas in a two-stage process comprising an initial steam reforming step followed by final conversion to synthesis gas in a mixed conducting membrane reactor. The steam reforming step converts a portion of the methane into synthesis gas and converts essentially all of the hydrocarbons heavier than methane into methane, hydrogen, and carbon oxides. The steam reforming step produces an intermediate feed stream containing methane, hydrogen, carbon oxides, and steam which can be processed without operating problems in a mixed conducting membrane reactor. The steam reforming and mixed conducting membrane reactors can be heat-integrated for maximum operating efficiency and produce synthesis gas with compositions suitable for a variety of final products. Synthesis gas produced by the methods of the invention is further reacted to yield liquid hydrocarbon or oxygenated organic liquid products.

REFERENCES:
patent: 4079017 (1978-03-01), Crawford et al.
patent: 4791079 (1988-12-01), Hazbun
patent: 4793904 (1988-12-01), Mazanec et al.
patent: 4822521 (1989-04-01), Fuderer
patent: 5160713 (1992-11-01), Mazanec et al.
patent: 5276237 (1994-01-01), Mieville
patent: 5306411 (1994-04-01), Mazanec et al.
patent: 5356728 (1994-10-01), Balachandran et al.
patent: 5536488 (1996-07-01), Mansour et al.
patent: 5580497 (1996-12-01), Balachandran et al.
patent: 5591315 (1997-01-01), Mezanec et al.
patent: 5599383 (1997-02-01), Dyer et al.
Rostrup-Nielsen, J. et al., "Steam Reforming-Opportunities and Limits of the Technology", presented at the NATO ASI Study on Chemical Reactor Technology for Environmentally Safe Reactors and Predictors, Aug. 25-Sep. 5, 1991, Ontario, Canada.
Christiansen, T. S. et al. "Improve Syngas Production Using Autothermal Reforming", Hydrocarbon Processing, Mar. 1994, pp. 39-46.
Sundset, T. et al., "Evaluation of Natural Gas Based Synthesis Gas production Technologies", Catalysis Today 21 (1994), pp. 269-278, (No Month).
Reed, C.L. et al., "Production of Synthesis Gas by Partial Oxidation of Hydrocarbons" presented at the 86.sup.th AIChE meeting, Houston, Texas, Apr. 1-5, 1979.
Fong, F., "Texaco's HyTEX Process for High Pressure Hydrogen Production", presented at the KTI Symposium, Apr. 27, 1993, Caracas, Venezuela.
Osterrieth, P. J. et al., "Custom-Made Synthesis Gas Using Texaco's Partial Oxidation Technology", presented at the AIChE Spring National Meeting, New Orleans, LA, Mar. 9, 1988.
Balachandran, U. et al. "Ceramic Membranes For Methane Conversion", presented at the Coal Liquefaction and Gas Conversion Contractors, Review Conference, Sep. 7-8, 1994, Pittsburgh, PA.
Tsai, C.-Y. et al., "Simulation of a Nonisothermal Catalytic Membrane Reactor for Methane partial Oxidation to Syngas", Proceedings of the Third International Conference of Inorganic Membranes, Worcester, MA, Jul. 10-14, 1994.
Tsai, C.-Y. et al., "Modeling and Simulation of a Nonisothermal Catalytic Membrane Reactor", Chem. Eng Comm., 1995, vol. 134, pp. 107-132.
Tsai, C. Y., "Perovskite Dense Membrane Reactors for the Partial Oxidation of Methane to Synthesis Gas", May 1996 (published by UMI Dissertation Services).
Cromarty, B. J. et al., "The Application of Pre-Reforming Technology in the Production of Hydrogen", presented at the NPRA Annual Meeting, Mar. 21-23, 1993, San Antonio, Texas.
Foreman, J. M., et al., "The Benefits of pre-reforming in Hydrogen Production Plants", presented at th World Hydrogen Conference, Jun. 1992.
Cromarty, B. J., "Modern Aspects of Steam Reforming for Hydrogen Plants", presented at the World Hydrogen Confernece, Jun. 1992.
Mazanec, T. J., "Electropox Gas Reforming", Electrochemical Society Proceedings, vol. 95-24, 16 1997, pp. 16-28, (No Month).
U.S. application No. 08/721,640, Adler et al., filed Sep. 26, 1996.
U.S. application No. 08/997,642, Nataraj et al., filed Dec. 23, 1997.
U.S. application No. 08/870,012, Nataraj et al., filed Jun. 6, 1997.
U.S. application No. 09/141,909, Adler et al., filed Aug. 28, 1998.
U.S. application No. 09/157,712, Nataraj et al., filed Sep. 21, 1998.
Copy of European Search Report.

Affiliated with

Also associated with

Rating

Utilization of synthesis gas produced by mixed conducting membra does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Utilization of synthesis gas produced by mixed conducting membra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Utilization of synthesis gas produced by mixed conducting membra will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1250518