Dehydrocyclodimerization process

Details Dehydrocyclodimerization process Dehydrocyclodimerization process

1984-10-11

1985-10-15

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 27, 55 68, 55 75, 62 18, 62 23, 585820, B01D 5304

Patent

active

045472050

ABSTRACT:
A process is disclosed for the recovery of hydrogen and C.sub.6 -plus product hydrocarbons from the effluent stream of a hydrocarbon conversion reaction zone. The effluent stream is partially condensed to remove the bulk of the heavy hydrocarbons, which are sent to a fractionation zone. The remaining vapor is compressed to a substantially higher pressure. The vapor then passes into an autorefrigeration zone in which it is cooled and partially condensed by indirect heat exchange against flashed fluids. The still pressurized uncondensed compounds are transferred to a pressure swing adsorption zone, which produces a high purity hydrogen product. The initial compression therefore is used in two different high pressure separation zones in series.

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