Exothermic hydrocarbon conversion system utilizing heat...

Details Exothermic hydrocarbon conversion system utilizing heat... Exothermic hydrocarbon conversion system utilizing heat...

C - Chemistry, Metallurgy

07

C

23/400, 260/676

C07C 2/12 (2006.01) C07C 2/00 (2006.01)

Patent

CA 1215398

F-2194 EXOTHERMIC HYDROCARBON CONVERSION SYSTEM UTILIZING HEAT EXCHANGE BETWEEN REACTOR EFFLUENT FRACTIONATION SYSTEM AND FEEDSTOCK Abstract A continuous catalytic system for converting olefins to gasoline or distillate range hydrocarbons wherein a continuous liquid olefinic feedstream is diluted with a liquid gasoline and/or lower alkane steam. The improved technique provides methods and means for (a) fractionating converted reactor effluent to obtain a condensed lower aliphatic stream and a liquid stream consisting essentially of C5+ hydrocarbons; (b) further fractionating the C5+ liquid stream to recover a distillate range liquid product and a gasoline range splitter overhead vapor stream; (c) recycling at least a portion of the condensed lower aliphatic stream under pressure for dilution of the olefinic feedstream; and (d) recovering waste heat from splitter overhead vapor by thermal transfer to heat at least a portion of the condensed lower aliphatic stream and the olefinic feedstream under super-atmospheric pressure.

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