Production of synthesis gas by mixed conducting membranes

Details Production of synthesis gas by mixed conducting membranes Production of synthesis gas by mixed conducting membranes

1997-12-23

2000-04-11

Langel, Wayne

Compositions

Gaseous compositions

Carbon-oxide and hydrogen containing

423650, 423652, C01B 326

Patent

active

060484721

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.

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.
patent: 5714091 (1998-02-01), Mazanec et al.
patent: 5868918 (1999-02-01), Adler 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.
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.
U.S. application No. 08/721,640, Adler et al., filed Sep. 26, 1996.
Copy of European Search Report.

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