Gas separation by pressure swing adsorption for producing hydrogen from coal: Final report
This project demonstrated the feasibility of producing high purity hydrogen from a coal gasification product gas mixture by Pressure Swing Adsorption (PSA) using a commercial 5A zeolite as the adsorbent. The major advantage of PSA over conventional hydrogen upgrading processes is associated with lower overall production costs. This is mainly due to the integration of PSA into H/sub 2/ production plants as a single unit operation by replacing the low temperature carbon monoxide shift, carbon dioxide wash and methanation steps. In this way, hydrogen production costs are typically reduced from 7 to 40%. A single bed PSA process was designed to simulate the various steps of commercial multibed PSA plants. A new and very important step, ''Vacuum Purge'', was also investigated. 45 refs., 38 figs., 50 tabs.
- Research Organization:
- State Univ. of New York, Buffalo (USA). Dept. of Chemical Engineering
- DOE Contract Number:
- AC21-85MC22060
- OSTI ID:
- 6575824
- Report Number(s):
- DOE/MC/22060-2643; ON: DE89000919
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
080100* -- Hydrogen-- Production
080107 -- Hydrogen-- Production-- Coal Gasification
ADSORPTION
ADSORPTION ISOTHERMS
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COAL GASIFICATION
DATA
DIFFUSION
DISPERSIONS
DOCUMENT TYPES
ECONOMICS
ELEMENTS
FLUIDS
GASES
GASIFICATION
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
HYDROGEN SULFIDES
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTHERMS
MATERIALS
MATHEMATICAL MODELS
METHANE
MINERALS
MIXTURES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PROGRESS REPORT
SEPARATION PROCESSES
SORPTION
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
YIELDS
ZEOLITES