Integrated reactor system for converting oxygenates to alkylated

Details Integrated reactor system for converting oxygenates to alkylated Integrated reactor system for converting oxygenates to alkylated

1986-10-15

1988-08-30

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

422192, 422198, 585312, 585314, 585331, C07C 120

Patent

active

047676043

ABSTRACT:
Alkylate is produced by catalytically converting oxygenate feedstock, such as methanol, to lower olefins comprising C.sub.2 -C.sub.4 olefins. Ethene is separated by interstage sorption of C.sub.3 + components and an isoparaffin is alkylated with C.sub.3 -C.sub.4 olefins derived from sorbate. The system comprises means for fractionating an olefinic feedstream containing ethene and C.sub.3 + olefinic components by contacting the olefinic feedstream in a sorption zone with a liquid hydrocarbon sorbent to selectively sorb C.sub.3.sup.+ components; means for reacting C.sub.3.sup.+ olefins with excess isoparaffin in a catalytic alkylation reactor to produce C.sub.7 + alkylate hydrocarbons; fractionating the alkylation reactor effluent to provide a liquid hydrocarbon fraction rich in C.sub.7.sup.+ alkylate. Liquid recycle or C.sub.5.sup.+ liquid coproduced with the lower olefin may be passed to the sorption zone as lean sorbent. C.sub.7.sup.+ alkylate product and C.sub.5.sup.+ gasoline are recovered from the process.

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