Use of complex metal oxides in the autothermal generation of...

Details Use of complex metal oxides in the autothermal generation of... Use of complex metal oxides in the autothermal generation of...

2005-06-24

2008-10-21

Langel, Wayne (Department: 1793)

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

C423S653000, C423S654000

Reexamination Certificate

active

07438889

ABSTRACT:
A process for producing hydrogen comprising reacting at least one hydrocarbon and steam in the presence of a complex metal oxide and a steam-hydrocarbon reforming catalyst in a production step under reaction conditions sufficient to form hydrogen and a spent complex metal oxide, wherein the complex metal oxide is represented by the formulain-line-formulae description="In-line Formulae" end="lead"?(A′xCax′Mgx″)x(B′yMny′Fey″)yOnin-line-formulae description="In-line Formulae" end="tail"?where A′ represents at least one element selected from the group consisting of Sr, Ba, a Group 1 element, and an element of the Lanthanide series according to the IUPAC Periodic Table of the Elements; B′ represents at least one element selected from the group consisting of Cu, Ni, Co, Cr, and V;0≦x≦1, 0≦x′≦1, 0≦x″≦1 wherein x+x′+x″=x;0≦y≦1, 0≦y′≦1, 0≦y″≦1 wherein y+y′+y″=y;1≦x≦10;1≦y≦10;and n represents a value such that the complex metal oxide is rendered electrically neutral.

REFERENCES:
patent: 4578089 (1986-03-01), Richter et al.
patent: 5055441 (1991-10-01), McCarron, III et al.
patent: 5827496 (1998-10-01), Lyon
patent: 6007699 (1999-12-01), Cole
patent: 6238816 (2001-05-01), Cable et al.
patent: 6322766 (2001-11-01), Schicketanz et al.
patent: 6506510 (2003-01-01), Sioui et al.
patent: 6682838 (2004-01-01), Stevens
patent: 6761838 (2004-07-01), Zeng et al.
patent: 6767530 (2004-07-01), Kobayashi et al.
patent: 6974566 (2005-12-01), Sabacky et al.
patent: 7070752 (2006-07-01), Zeng et al.
patent: 2002/0010220 (2002-01-01), Zeng et al.
patent: 2002/0071806 (2002-06-01), Sabacky et al.
patent: 2003/0035770 (2003-02-01), Cole
patent: 2003/0150163 (2003-08-01), Murata et al.
patent: 2003/0229151 (2003-12-01), Hurlburt et al.
patent: 2004/0191166 (2004-09-01), Hershkowitz et al.
patent: 2005/0112056 (2005-05-01), Hampden-Smith et al.
patent: 2006/0292066 (2006-12-01), Pez et al.
patent: 2006/0292069 (2006-12-01), Pez et al.
patent: 2007/0172418 (2007-07-01), Slager et al.
patent: 0411506 (1991-02-01), None
patent: 0737648 (1996-10-01), None
patent: 1134187 (2001-09-01), None
patent: 1736438 (2006-12-01), None
patent: 9902471 (1999-01-01), None
Nakahara et al., “Synthesis and crystal structure of (Sr1-xCax)2FeMnOy ( x=0.10)”, Materials Letters 30 (1997), pp. 163-167.
Z. C. Zang, et al., “Hydrogen Production from Methane and Water by Lattice Oxygen Transfer with Ce0.70Zr0.25Tb0.05O2-x”, J. Alloys and Compounds, 323-324 (2001). pp. 97-101.
K. Vidyasagar, et al., “A Convenient Route for the Synthesis of Complex Metal Oxides Employing Solid-Solution Precursors”, Inorg. Chem., 1984 (23), 1206-1210.
A. R. Brun-Tsekhovoi, et al., “The Process of Catalytic Steam-Reforming of Hydrocarbons in the Presence of Carbon Dioxide Acceptor”, Hydrogen Energy Progres VII, Proceedings of the 7thWorld Hydrogen Eenrgy Conference, Moscow (vol. 2, 1988), pp. 885-900.
B. Balasubramanian, “Hydrogen from Methane in a Single-Step Process”, Chem. Eng. Sci. 54 (1999), 33543-3552.
Y. Ding, “Adsorption-Enchanced Steam Methane Reforming”, Chem. Eng. Sci. 55 (2000), pp. 3929-3940.
European Search Report for EP06012612.
Aihara et al. “Development of porous solid reactant for thermal-energy storage and temperature upgrade using carbonation/decarbonation reaction”, Applied Energy 69 (2001), pp. 225-238.
Hufton et al., “Sorption Enhanced Reaction Process (SERP) for the production of Hydrogen”, Proceedings of the 2000 Hydrogen Program Review (2000), pp. 1-14.
Shin, “Separation of a Binary Gas Mixture by Pressure Swing Adsorption: Comparison of Different PSA Cycles”, Adsorption 1 (1995), pp. 321-333.
Waldron et al., “Parametric Study of a Pressure Swing Adsorption Process”, Adsorption 6, (2000), pp. 179-188.

Affiliated with

Also associated with

Rating

Use of complex metal oxides in the autothermal generation of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of complex metal oxides in the autothermal generation of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of complex metal oxides in the autothermal generation of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4005370