Catalytic conversion of methanol to light olefins
AssigneeMobil Oil Corporation
InventorsCarol S. Lee, George E. Stead
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Abstract
A process is disclosed for converting a methanol-containing feed to a light olefin-containing product over a ZSM-12 zeolite catalyst, preferably modified by incorporation of either magnesium, manganese or both magnesium and manganese. By using such Mg and/or Mn-modified ZSM-12 zeolite catalysts, methanol and/or methyl ether can be converted to an olefin-containing hydrocarbon product enriched in C.sub.2 to C.sub.4 olefins and especially enriched in the particular light olefin propylene.
Claims13
A process for converting a methanol-containing feed to an olefin-containing hydrocarbon product having a propylene:ethylene weight ratio of at least 35.1:6.4, said process comprising contacting said methanol-containing feed in a reaction zone under methanol conversion conditions with a ZSM-12 zeolite catalyst modified by incorporation thereinto of a minor amount of a modifier selected from magnesium oxide, manganese oxide and a combination of both magnesium oxide and manganese oxide.
A process for converting a methanol-containing feed to an olefin-containing hydrocarbon product having a propylene:ethylene weight ratio of at least 35.1:6.4, said process comprising contacting said methanol-containing feed in a reaction zone under methanol conversion conditions with a ZSM-12 zeolite catalyst.
Dependencies are inferred from the claim text.