Alkylation process unit with recyle of hydrogen and recovery of hydrogen chloride

摘要

We provide alkylation process units, one comprising:
a) a hydrogenation reactor that produces a regenerated catalyst effluent;b) a fractionation unit that separates the effluent into gas and light hydrocarbon;c) a connection between the fractionation unit for transmitting the gas to the hydrogenation reactor; andd) a connection between the fractionation unit and an alkylation reactor to transmit the light hydrocarbon to the alkylation reactor. The other comprising:a) a separator, connected between the hydrogenation reactor and a fractionation unit; that separates the effluent into gas and liquid; and wherein the fractionation unit separates a hydrocarbon stream from the liquid into a light hydrocarbon comprising a hydrogen chloride and an extracted conjunct polymer naphtha;b) a connection between the separator and the hydrogenation reactor for transmitting the gas to the hydrogenation reactor; andc) a connection between the fractionation unit and an alkylation reactor to transmit the light hydrocarbon.

主权项

1. An alkylation process unit, comprising:
a) a hydrogenation reactor (100), wherein a used catalyst (70) comprising an ionic liquid catalyst and a chloride produces a regenerated catalyst effluent (10); b) a fractionation unit (200) fluidly connected to the hydrogenation reactor (100), that separates at least a portion of the regenerated catalyst effluent (10) into a gas fraction comprising a hydrogen gas (20) and into a light hydrocarbon fraction comprising a hydrogen chloride (30); c) a first connection between the fractionation unit (200) and the hydrogenation reactor (100) for transmitting at least a part of the gas fraction to the hydrogenation reactor (100); and d) a second connection between the fractionation unit (200) and an alkylation reactor (300) to transmit at least an amount of the light hydrocarbon fraction to the alkylation reactor (300).