Multistage catalytic reactor system for production of heavy hydr

Details Multistage catalytic reactor system for production of heavy hydr Multistage catalytic reactor system for production of heavy hydr

1988-10-20

1990-04-24

Kratz, Peter

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422190, 422194, 422207, B01J 804, B01J 818

Patent

active

049198963

ABSTRACT:
A multi-stage catalytic olefin upgrading reactor system for converting lower olefinic feedstock to heavier liquid hydrocarbon product. The novel apparatus includes a fluid bed continuous primary stage reaction zone with shape selective medium pore zeolite oligomerization catalyst particles to convert at least a portion of the lower olefinic components to intermediate olefinic hydrocarbons containing olefinic and aromatic components; means are provided for cooling primary stage reaction effluent to condense at least a portion of the intermediate hydrocarbons, feeding a second olefinic stream to a serially arranged multi-reactor secondary stage for upgrading lower olefins, quenching partially upgraded secondary stage olefins with primary stage liquid, and further contacting the quenched mixture including aromatics from the primary stage with oligomerization catalyst in a high pressure fixed bed secondary stage distillate mode catalytic reactor at elevated temperature and high pressure to provide a heavier hydrocarbon effluent stream comprising distillate hydrocarbons.

REFERENCES:
patent: 3760024 (1973-09-01), Cattanach
patent: 4482772 (1984-11-01), Tabak
patent: 4544788 (1985-10-01), Daviduk et al.
patent: 4556540 (1985-12-01), Benslay
patent: 4560536 (1985-12-01), Tabak
patent: 4605807 (1986-08-01), Mazurek
patent: 4789528 (1988-12-01), Owen et al.

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