Patent ID: 8728301
Filing Date: 2014-05-20
Classification: C07C,C10G

Abstract:
1. An integrated ionic liquid alkylation and n-butane isomerization process, comprising: a) contacting at least one isoparaffin and at least one olefin with an ionic liquid catalyst in an ionic liquid alkylation zone under ionic liquid alkylation conditions; b) separating an alkylation hydrocarbon phase from an alkylation reactor effluent of the ionic liquid alkylation zone; c) fractionating, via a distillation unit, an internal hydrocarbon feed to provide an n-butane containing fraction, wherein the internal hydrocarbon feed comprises the alkylation hydrocarbon phase; d) contacting the n-butane containing fraction with an isomerization catalyst in an isomerization zone under butane isomerization conditions to provide an isomerization reactor effluent; e) via a gas/liquid separation unit, separating the isomerization reactor effluent to provide an isomerization hydrocarbon stream and a gaseous fraction comprising molecular hydrogen and HCl; and f) recycling the molecular hydrogen and HCl of the gaseous fraction from the gas/liquid separation unit to the isomerization zone.