Methanation kinetics with a Ru/Al/sub 2/O/sub 3/ monolith catalyst
- Univ. Idaho
Methanation kinetics with a Ru/A1/sub 2/O/sub 3/ monolith catalyst were studied in a Berty reactor at 245/sup 0/-450/sup 0/C, 14-55 atm, 3.5:1-7:1 hydrogen/carbon monoxide inlet ratio, and 10,000-40,000/hr space velocity. The catalyst consisted of 0.5Vertical Bar3< by wt ruthenium supported on an 0.0254 mm thick alumina ''wash coat'' which was deposited on a Fecralloy (a Matthey Bishop Inc. proprietary alloy) 1 in. x 1 in. cylindrical substrate. Although the temperature dependence of the reaction rate was minimal, transport limitations were not significant, and the negative reaction order in hydrogen suggested strong adsorption inhibition. The water gas shift was a secondary reaction with approx. 95Vertical Bar3< selectivity for methane even with up to 40Vertical Bar3< steam. By comparing these results with those from previous work which used nickel/alumina pellet catalysts, conversions in an adiabatic fixed bed reactor were predicted. The predictions suggest that the monolithic catalyst gives somewhat higher conversions than a standard 6.4 mm nickel/alumina pelleted catalyst, and can give high conversions and low-pressure drops at space velocities of approx. 60,000/hr.
- OSTI ID:
- 6764456
- Report Number(s):
- CONF-781110-
- Journal Information:
- 71st AIChE Annu. Meet.; (United States), Vol. 66d; Conference: 71. meeting of the AICHE, Miami, FL, USA, 12 Nov 1978
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
ALUMINIUM OXIDES
CATALYTIC EFFECTS
CATALYSTS
COMPARATIVE EVALUATIONS
METHANATION
CHEMICAL REACTION KINETICS
NICKEL
RUTHENIUM
HIGH TEMPERATURE
MEDIUM PRESSURE
QUALITATIVE CHEMICAL ANALYSIS
THERMODYNAMIC ACTIVITY
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
ELEMENTS
KINETICS
METALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REACTION KINETICS
TRANSITION ELEMENTS
090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)
010403 - Coal & Coal Products- Hydrogenation- (-1987)