Alternative process schemes for coal conversion. Progress report No. 2, February 1-April 30, 1979

Technical Report · Tue May 01 04:00:00 EDT 1979

DOI:https://doi.org/10.2172/5604730· OSTI ID:5604730

Sansone, M. J.

The importance of gas separation methods to the economics of hydrogasification and catalytic gasification processes has been emphasized. This importance is due to the fact that these processes require large amounts of recycled hydrogen or hydrogen and carbon monoxide from which the product methane must be removed via some economical method. For example, the Exxon catalytic gasification process utilizes a cryogenic distillation to achieve the separation of CH/sub 4/ from H/sub 2/ and CO. In this report, the energetics of a cryogenic separation process for hydrogen-methane mixtures are calculated and compared with the energy requirements for the separation of H/sub 2//CH/sub 4/ and H/sub 2//CO/CH/sub 4/ mixtures using a gas hydrate separation scheme. It must be stated at the outset that the success of the proposed hydrate process depends upon the kinetics of hydrate formation for which we have no data. Nevertheless, it is still worthwhile to examine such a process within a thermodynamic framework to determine if such a scheme is at least energetically, if not kinetically, feasible.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 5604730
• Report Number(s): BNL-51075
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
ALKANES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL GASIFICATION
COMPARATIVE EVALUATIONS
CRYOGENIC FLUIDS
DEMAND
ELEMENTS
ENERGY DEMAND
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GAS HYDRATES
GASIFICATION
HYDRATES
HYDROCARBONS
HYDROGEN
HYDROGENATION
KINETICS
METHANE
NONMETALS
ORGANIC COMPOUNDS
PHASE STUDIES
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES