Composition and method for polymer moderated catalytic water formation
Abstract
A composition suitable for safely removing hydrogen from gaseous mixtures containing hydrogen and oxygen, particularly those mixtures wherein the hydrogen concentration is within the explosive range. The composition comprises a hydrogenation catalyst, preferably Pd dispersed on carbon, wherein the concentration of Pd is from about 1-10 wt %, dispersed in a polymeric material matrix. As well as serving as a matrix to contain the hydrogenation catalyst, the polymeric material, which is substantially unreactive to hydrogen, provides both a diffusion restriction to hydrogen and oxygen, thereby limiting the rate at which the reactants (hydrogen and oxygen) can diffuse to the catalyst surface and thus, the production of heat from the recombination reaction and as a heat sink.
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 872731
- Patent Number(s):
- 5998325
- Assignee:
- Sandia Corporation (Livermore, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- composition; method; polymer; moderated; catalytic; water; formation; suitable; safely; removing; hydrogen; gaseous; mixtures; containing; oxygen; particularly; concentration; explosive; range; comprises; hydrogenation; catalyst; preferably; pd; dispersed; carbon; 1-10; wt; polymeric; material; matrix; serving; contain; substantially; unreactive; provides; diffusion; restriction; limiting; rate; reactants; diffuse; surface; production; heat; recombination; reaction; sink; composition suitable; hydrogen concentration; hydrogenation catalyst; containing hydrogen; composition comprises; polymeric material; heat sink; gaseous mixture; removing hydrogen; gaseous mixtures; mixtures containing; preferably pd; /502/252/422/423/
Citation Formats
Shepodd, Timothy Jon. Composition and method for polymer moderated catalytic water formation. United States: N. p., 1999.
Web.
Shepodd, Timothy Jon. Composition and method for polymer moderated catalytic water formation. United States.
Shepodd, Timothy Jon. Fri .
"Composition and method for polymer moderated catalytic water formation". United States. https://www.osti.gov/servlets/purl/872731.
@article{osti_872731,
title = {Composition and method for polymer moderated catalytic water formation},
author = {Shepodd, Timothy Jon},
abstractNote = {A composition suitable for safely removing hydrogen from gaseous mixtures containing hydrogen and oxygen, particularly those mixtures wherein the hydrogen concentration is within the explosive range. The composition comprises a hydrogenation catalyst, preferably Pd dispersed on carbon, wherein the concentration of Pd is from about 1-10 wt %, dispersed in a polymeric material matrix. As well as serving as a matrix to contain the hydrogenation catalyst, the polymeric material, which is substantially unreactive to hydrogen, provides both a diffusion restriction to hydrogen and oxygen, thereby limiting the rate at which the reactants (hydrogen and oxygen) can diffuse to the catalyst surface and thus, the production of heat from the recombination reaction and as a heat sink.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}
Works referenced in this record:
Polymer-Protected Palladium Nanoparticles and Their Use in Catalysis
journal, October 1996
- Mayer, Andrea B. R.; Mark, James E.
- Journal of Macromolecular Science, Part A, Vol. 33, Issue S7-S8