Ethylene from methane and catalysts therefor

Chemistry of hydrocarbon compounds – Unsaturated compound synthesis

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585651, 585652, 585943, C07C 200

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active

052451240

ABSTRACT:
A catalyst having the composition A:Al.sub.2 O.sub.3 is used as a catalyst for producing ethylene from methane. A is an alkali metal, preferably lithium. The catalyst may be doped with an additive such as MgCl.sub.2. A weak oxidation catalyst such as MoO.sub.3 or ZrO.sub.2 may be added. The catalyst is heated to at least 750.degree. C. in a catalytic reactor and a mixture of air and methane is passed over the heated catalyst. Oxygen or air may be added part way along the catalytic reaction to oxidize H.sub.2 but not C.sub.2 H.sub.4.

REFERENCES:
patent: 3586733 (1971-06-01), Connor et al.
patent: 4073875 (1978-02-01), Feilchenfeld
patent: 4499322 (1985-02-01), Jones et al.
patent: 4517398 (1985-05-01), Sofranko
patent: 4560821 (1985-12-01), Jones et al.
patent: 4608449 (1986-08-01), Baerns et al.
patent: 4658074 (1987-04-01), Bajars et al.
patent: 4665260 (1987-05-01), Jones et al.
patent: 4935572 (1990-06-01), Erekson et al.
patent: 4952743 (1990-08-01), Come
patent: 5053578 (1991-10-01), Michaels et al.
patent: 5118654 (1992-06-01), Choudhary et al.
patent: 5132482 (1992-07-01), Smith et al.
Sofranko et al, The Oxidative Conversion of Methane to Hydrocarbons, 1987 Journal of Catalysis pp. 302-310.
Keller et al, Synthesis of Ethylene via Oxidative Coupling of Methane, 1982, Journal of Catalysis pp. 9-19.
Lee et al, Oxidative Coupling of Methane to Higher Hydrocarbons, 1988, Catal. Rev.-Sci. Eng. pp. 249-279.
Bibby et al, Feasibility of Ethylene Synthesis via Oxidative Coupling of Methane, 1988, pp. 343-357.
Otsuka et al, Active and Selective Catalysts for the Synthesis of C.sub.2 H.sub.4 via Oxydative Coupling of Methane, 1986, pp. 353-359.
Ito et al, Oxidative Dimerization of Methane over a Lithium-Promoted Magnesium Oxide Catalyst, 1985, J. Am. Chem. Soc., pp. 4808-4810.
Lin et al, Oxidative Dimerization of Methane over Magnesium and Calcium Oxide Catalysts Promoted with Group 1A Ions: The Role of [M.sup.+ O.sup.0 ] Centers, 1987, J. Am. Chem. Soc., pp. 5062-5068.
Cant et al, The Rate of Controlling Step in the Oxidative Coupling of Methane over a Lithium-Promoted Magnesium Oxide Catalyst, 1988, J. Chem. Soc., pp. 766-768.
Buevskaya et al, Activiation of Hydrocarbons in the Oxidative Dimerization of Methane Over Alkaline Earth Metals, 1987, pp. 223-227.
Otsuka et al, Kinetic Studies on Partial Oxidation of Methane over Samarium Oxides, 1986, Inorganica Chimica Arta, pp. 237-241.
Emesh et al, Oxidative Coupling of Methane over the Oxides of Group IIIA, IVA, and VA Metals, 1986, J. Phys. Chem., pp. 4785-4789.
Jones et al, The Oxidative Conversion of Methane to Higher Hydrocarbons over Alkali-Promoted Mn/SiO.sub.2, 1987, Journal of Catalysts, pp. 311-319.

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