Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation
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.
- DOE Contract Number:
- AC06-76RL01830
- Assignee:
- Battelle Memorial Inst., Richland, WA (United States)
- Patent Number(s):
- US 4952713; A
- Application Number:
- PPN: US 7-202097
- OSTI ID:
- 7270466
- Resource Relation:
- Patent File Date: 2 Jun 1988
- Country of Publication:
- United States
- Language:
- English
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Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation
Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation
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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