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US 10,889,534 B2Granted
Alkylation processes using liquid Lewis acid catalysts
AssigneeUop LLC
InventorsErin M. Broderick, Alakananda Bhattacharyya, Peter K. Coughlin
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Abstract
An alkylation process is described. The alkylation process includes contacting a feed comprising a paraffin or an aromatic with an olefin feed in the presence of a liquid Lewis acid catalyst in an alkylation reaction zone under alkylation conditions to form a reaction mixture comprising alkylation products and the liquid Lewis acid catalyst. The liquid Lewis acid catalyst is the liquid reaction product of a donor molecule and a metal halide. The alkylation products are separated from the liquid Lewis acid catalyst and recovered.
Claims19
An alkylation process comprising:
- contacting a hydrocarbon feed comprising a butane with an olefin feed comprising a butene in the presence of a liquid Lewis acid catalyst and in the absence of hydrofluoric acid in an alkylation reaction zone under alkylation conditions to form a biphasic reaction mixture comprising alkylation products comprising trimethylpentanes and the liquid Lewis acid catalyst, wherein the liquid Lewis acid catalyst is a liquid reaction product of a donor molecule and a metal halide, wherein the metal in the metal halide is Al, wherein the donor molecule comprises caprolactam, N-methylcaprolactam, delta-valerolactone, tetrahydrofuran, caprolactone, alpha-acetolactone, beta-propiolactone, gamma-butyrolactone, morpholine, beta-propiolactam, gamma-butyrolactam, delta-valerolactam, or combinations thereof, wherein a mole fraction of the metal halide in the liquid Lewis acid is greater than about 0.5 to less than about 1;
- separating the biphasic reaction mixture into the alkylation products and the liquid Lewis acid catalyst;
- and
- recovering the alkylation products.
1 more element
An alkylation process comprising:
- contacting a hydrocarbon feed with an olefin feed in the presence of a liquid Lewis acid catalyst and in the absence of hydrofluoric acid in an alkylation reaction zone under alkylation conditions to form a biphasic reaction mixture comprising alkylation products and the liquid Lewis acid catalyst, wherein the liquid Lewis acid catalyst is a liquid reaction product of a donor molecule and a metal halide, wherein the donor molecule comprises caprolactam, N-methylcaprolactam, delta-valerolactone, tetrahydrofuran, caprolactone, alpha-acetolactone, beta-propiolactone, gamma-butyrolactone, morpholine, beta-propiolactam, gamma-butyrolactam, delta-valerolactam, or combinations thereof, and wherein the hydrocarbon feed comprises a paraffin having 3 to 8 carbon atoms and wherein the olefin feed has 2 to 8 carbon atoms;
- separating the biphasic reaction mixture into the alkylation products and the liquid Lewis acid catalyst;
- recovering the alkylation products;
- and
- recovering the liquid Lewis acid catalyst.
2 more elements
An alkylation process comprising:
- contacting a hydrocarbon feed comprising a paraffin or an aromatic with an olefin feed in the presence of a liquid Lewis acid catalyst in an alkylation reaction zone under alkylation conditions to form a biphasic reaction mixture comprising alkylation products and the liquid Lewis acid catalyst, wherein the liquid Lewis acid catalyst is a liquid reaction product of a donor molecule and a metal halide, wherein the metal in the metal halide is Al, wherein the donor molecule is a Lewis base capable of donating electrons to the metal, wherein the donor molecule comprises caprolactam, N-methylcaprolactam, delta-valerolactone, tetrahydrofuran, caprolactone, alpha-acetolactone, beta-propiolactone, gamma-butyrolactone, morpholine, beta-propiolactam, gamma-butyrolactam, delta-valerolactam, or combinations thereof, wherein a mole fraction of the metal halide in the liquid Lewis acid is greater than about 0.5 to less than about 1;
- separating the biphasic reaction mixture into the alkylation products and the liquid Lewis acid catalyst;
- and
- recovering the alkylation products.
1 more element
Dependencies are inferred from the claim text.