Synthesis of methane in hot gas recycle reactor pilot plant tests

Technical Report · Mon Jan 01 04:00:00 EST 1973

OSTI ID:7217351

Haynes, W P; Forney, A J; Elliott, J J; Pennline, H W

Development of large-scale catalytic methanation reactors is necessary to complete the commercialization of plants for converting coal to substitute natural gas. Major objectives in developing a catalytic methanation system are to achieve efficient removal of the heat of reaction so as to minimize thermal deactivation of catalyst and to minimize catalyst deactivation by other causes such as chemical poisoning and structural changes. The hot gas recycle reactor, where large quantities of partially cooled product gas are circulated through the catalyst bed, affords one satisfactory method of removing large amounts of heat from the catalyst surface. Early Bureau of Mines experiments with the hot gas recycle reactor, however, had short catalyst lives, on the order of 200 hours. The work described here attempts to extend the life of the catalyst to determine the effects of some of the process variables, and to compare the performance of a bed of pelleted nickel catalyst against that of a bed of parallel plates coated with Raney nickel.

• Research Organization: Bureau of Mines, Pittsburgh, PA (USA)
• OSTI ID: 7217351
• Report Number(s): NP-21875
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
CATALYSTS
CHEMICAL REACTIONS
COAL GASIFICATION
CONTROL
ELEMENTS
FLUIDS
GASES
GASIFICATION
GEOMETRY
MATHEMATICS
METALS
METHANATION
NICKEL
POISONING
SERVICE LIFE
SYNTHESIS GAS
TEMPERATURE CONTROL
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS