Further results on the reaction of H/sub 2//CO on fused iron by the transient method

Conference · Tue Jan 01 04:00:00 EST 1980 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:6318408

Reymond, J P; Bennett, C O; Meriaudeau, P; Pommier, B

The effect of reaction products on the previously described reaction of 10Vertical Bar3< CO in H/sub 2/ on a commercial fused iron ammonia synthesis catalyst was studied on a catalyst pretreated in oxygen at 500/sup 0/C prior to the usual hydrogen-reduction, which was relatively stable. The addition of CO/sub 2/ to the reaction mixture diminished CH/sub 4/ production by 8%; the replacement of CO by CO/sub 2/ diminished the methanation reaction and decreased the production of higher hydrocarbons. The addition of 0.6% water to the feed inhibited the reaction; the replacement of H/sub 2/ by 0.6% water stopped the hydrocarbon formation and increased CO/sub 2/ production. The addition of 10% ethane to the reactants had no significant effect; the replacement of H/sub 2/ by ethane yielded methane at < 10% of the methanation rate, as the catalyst had some hydrogenolysis activity. The reaction of 10% ethylene/H/sub 2/ produced methane, ethane, propane, and butane in a reaction that deactivated with time in a manner that indicated that ethylene does not carburize the catalyst; on a precarburized catalyst, the production of higher hydrocarbons was rapid as chain growth through CH/sub 2/ or CH groups formed directly from ethylene eliminated the rate-limiting step of their formation from CO. The results substantially confirmed the previously developed mechanism.

• Research Organization: Univ. of Lyon I
• OSTI ID: 6318408
• Report Number(s): CONF-800303-
• Conference Information: Journal Name: Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) Journal Volume: 25:2
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL FEEDSTOCKS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DATA
ELEMENTS
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN
INFORMATION
IRON
KINETICS
METALS
METHANATION
METHANE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
QUANTITY RATIO
REACTION KINETICS
SYNTHESIS
TRANSITION ELEMENTS
YIELDS