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 product gas from coal gasification processes. 3 figures.
- DOE Contract Number:
- AC06-76RL01830
- Assignee:
- Battelle Memorial Institute, Richland, WA (United States)
- Patent Number(s):
- US 5057300; A
- Application Number:
- PPN: US 7-514657
- OSTI ID:
- 7102203
- Resource Relation:
- Patent File Date: 24 Apr 1990
- 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
Related Subjects
01 COAL, LIGNITE, AND PEAT
ADSORBENTS
CHEMICAL COMPOSITION
HYDROGEN
MATERIALS RECOVERY
HYDROGEN STORAGE
CHROMIUM HYDRIDES
COBALT HYDRIDES
IRON HYDRIDES
MANGANESE HYDRIDES
SYNTHESIS GAS
SEPARATION PROCESSES
CARBONYLS
CHROMIUM COMPLEXES
COAL GAS
COBALT COMPLEXES
IRON COMPLEXES
MANGANESE COMPLEXES
CHROMIUM COMPOUNDS
COBALT COMPOUNDS
COMPLEXES
ELEMENTS
FLUIDS
GASES
HYDRIDES
HYDROGEN COMPOUNDS
IRON COMPOUNDS
MANAGEMENT
MANGANESE COMPOUNDS
NONMETALS
PROCESSING
PYROLYSIS PRODUCTS
STORAGE
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
080107* - Hydrogen- Production- Coal Gasification
080201 - Hydrogen- Chemisorption Storage
010408 - Coal
Lignite
& Peat- C1 Processes- (1987-)