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Title: Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation

Abstract

The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately [pi]-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancillary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H[sub 2] from mixed gas streams such as the producer gas from coal gasification processes. 3 figs.

Inventors:
;
Issue Date:
OSTI Identifier:
7270466
Patent Number(s):
4952713 A
Application Number:
PPN: US 7-202097
Assignee:
Battelle Memorial Inst., Richland, WA (United States) PTO; EDB-94-114584
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 2 Jun 1988
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 01 COAL, LIGNITE, AND PEAT; HYDROGEN; MEMBRANE TRANSPORT; HYDROGEN STORAGE; CHROMIUM HYDRIDES; COBALT HYDRIDES; IRON HYDRIDES; MANGANESE HYDRIDES; PRODUCER GAS; SEPARATION PROCESSES; BIMETALS; CARBONYLS; HYDROGEN PRODUCTION; MATERIALS; MEMBRANES; ORGANOMETALLIC COMPOUNDS; CHROMIUM COMPOUNDS; COBALT COMPOUNDS; ELEMENTS; FLUIDS; FUEL GAS; FUELS; GAS FUELS; GASES; HYDRIDES; HYDROGEN COMPOUNDS; IRON COMPOUNDS; LOW BTU GAS; MANGANESE COMPOUNDS; NONMETALS; ORGANIC COMPOUNDS; STORAGE; TRANSITION ELEMENT COMPOUNDS; 080201* - Hydrogen- Chemisorption Storage; 080107 - Hydrogen- Production- Coal Gasification; 010402 - Coal, Lignite, & Peat- Purification & Upgrading

Citation Formats

Lilga, M.A., and Hallen, R.T. Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation. United States: N. p., 1990. Web.
Lilga, M.A., & Hallen, R.T. Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation. United States.
Lilga, M.A., and Hallen, R.T. Tue . "Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation". United States.
@article{osti_7270466,
title = {Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation},
author = {Lilga, M.A. and Hallen, R.T.},
abstractNote = {The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately [pi]-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancillary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H[sub 2] from mixed gas streams such as the producer gas from coal gasification processes. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {8}
}