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Title: Hydrogen storage by reversible hydrogenation of pi-conjugated substrates

Abstract

Processes are provided for the storage and release of hydrogen by means of a substantially reversible catalytic hydrogenation of extended pi-conjugated substrates which include large polycyclic aromatic hydrocarbons, polycyclic aromatic hydrocarbons with nitrogen heteroatoms, polycyclic aromatic hydrocarbons with oxygen heteroatoms, polycyclic aromatic hydrocarbons with alkyl, alkoxy, nitrile, ketone, ether or polyether substituents, pi-conjugated molecules comprising 5 membered rings, pi-conjugated molecules comprising six and five membered rings with nitrogen or oxygen hetero atoms, and extended pi-conjugated organic polymers. The hydrogen, contained in the at least partially hydrogenated form of the extended pi-conjugated system, can be facilely released for use by a catalytic dehydrogenation of the latter in the presence of a dehydrogenation catalyst which can be effected by lowering the hydrogen gas pressure, generally to pressures greater than 0.1 bar or raising the temperature to less than 250° C. or less, or by a combination of these two process parameters.

Inventors:
; ; ;
Issue Date:
Research Org.:
Air Products and Chemicals, Inc., Allentown, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531566
Patent Number(s):
7,429,372
Application Number:
10/833,484
Assignee:
Air Products and Chemicals, Inc. (Allentown, PA)
DOE Contract Number:  
FC36-04GO14006
Resource Type:
Patent
Resource Relation:
Patent File Date: 2004-04-27
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Pez, Guido Peter, Scott, Aaron Raymond, Cooper, Alan Charles, and Cheng, Hansong. Hydrogen storage by reversible hydrogenation of pi-conjugated substrates. United States: N. p., 2008. Web.
Pez, Guido Peter, Scott, Aaron Raymond, Cooper, Alan Charles, & Cheng, Hansong. Hydrogen storage by reversible hydrogenation of pi-conjugated substrates. United States.
Pez, Guido Peter, Scott, Aaron Raymond, Cooper, Alan Charles, and Cheng, Hansong. Tue . "Hydrogen storage by reversible hydrogenation of pi-conjugated substrates". United States. https://www.osti.gov/servlets/purl/1531566.
@article{osti_1531566,
title = {Hydrogen storage by reversible hydrogenation of pi-conjugated substrates},
author = {Pez, Guido Peter and Scott, Aaron Raymond and Cooper, Alan Charles and Cheng, Hansong},
abstractNote = {Processes are provided for the storage and release of hydrogen by means of a substantially reversible catalytic hydrogenation of extended pi-conjugated substrates which include large polycyclic aromatic hydrocarbons, polycyclic aromatic hydrocarbons with nitrogen heteroatoms, polycyclic aromatic hydrocarbons with oxygen heteroatoms, polycyclic aromatic hydrocarbons with alkyl, alkoxy, nitrile, ketone, ether or polyether substituents, pi-conjugated molecules comprising 5 membered rings, pi-conjugated molecules comprising six and five membered rings with nitrogen or oxygen hetero atoms, and extended pi-conjugated organic polymers. The hydrogen, contained in the at least partially hydrogenated form of the extended pi-conjugated system, can be facilely released for use by a catalytic dehydrogenation of the latter in the presence of a dehydrogenation catalyst which can be effected by lowering the hydrogen gas pressure, generally to pressures greater than 0.1 bar or raising the temperature to less than 250° C. or less, or by a combination of these two process parameters.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {9}
}

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Works referenced in this record:

Hydrogen storage
patent, June 2000


Method of rapidly carrying out a hydrogenation of a hydrogen storage material
patent, January 2004


Portable chemical hydrogen hydride system
patent, April 2003


Production of hydrogen from hydrocarbons and oxygenated hydrocarbons
patent, August 2003


Dispensing nozzle improvement for extracting fuel
patent, March 1993


Vapor recovery nozzle
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