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US 10,513,472 B2Granted
Methods of producing propylene and ethylene
AssigneeLyondell Chemical Technology, L.P.
InventorDavid W. Leyshon
Life of this patent
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Abstract
Methods of producing at least one of ethylene and propylene. The methods may include contacting a mixture of C4+ compounds with a catalyst to convert at least a portion of the C4+ compounds to at least one of ethylene and propylene. The catalyst can include a phosphorus treated zeolite, and the mixture of C4+ compounds can include at least one of t-butyl alcohol and methyl t-butyl ether.
Claims18
A method of producing at least one of ethylene and propylene, the method comprising:
- providing a first mixture of C4+ compounds;
- and
- contacting the first mixture of C4+ compounds with a catalyst comprising:
- (a) a phosphorus treated zeolite, wherein the phosphorus treated zeolite comprises an alkali metal, and wherein the alkali metal is present in an amount no greater than about 0.5% by weight of the phosphorus treated zeolite, and
- (b) a binder, wherein the binder comprises bentonite clay, silica and kaolin and wherein the bentonite clay, silica and kaolin are present in the binder in a bentonite clay:silica:kaolin weight ratio of about 1:8-16:20,
- to convert at least a portion of the first mixture of C4+ compounds to at least one of ethylene and propylene, thereby producing a first effluent comprising at least one of ethylene and propylene
- wherein the first mixture of C4+ compounds comprises at least one of t-butyl alcohol and methyl t-butyl ether.
4 more elements
Dependencies are inferred from the claim text.