EP 0655492 A2 19950531 - Catalytic cracking process.
Title (en)
Catalytic cracking process.
Title (de)
Katalytisches Krackverfahren.
Title (fr)
Procédé de craquage catalytique.
Publication
Application
Priority
- US 15902893 A 19931129
- US 23155994 A 19940422
Abstract (en)
A hydrocarbon stream is cracked in Plant A to produce a hot gaseous stream which is separated in a fractionator B. A gaseous stream containing hydrogen and C1-C4 hydrocarbons is taken from the fractionator B, is raised in pressure in compressor C and is cooled in a heat exchanger D. The cooled gaseous stream is separated in a demethaniser E, and an off-gas comprising hydrogen and C1 to C3 hydrocarbons is withdrawn from the demethaniser E. The off-gas is subjected to separation by pressure swing adsorption or temperature swing adsorption at an adsorption temperature of about 0 to about 250 DEG C in a bed of adsorbent which selectively adsorbs ethylene and propylene, thereby adsorbing substantially all of the ethylene and propylene from the gas stream. The ethylene and/or propylene is recovered upon bed regeneration. <IMAGE>
IPC 1-7
IPC 8 full level
B01D 53/72 (2006.01); B01D 53/04 (2006.01); C07C 7/13 (2006.01); C07C 11/04 (2006.01); C07C 11/06 (2006.01); C10G 5/02 (2006.01); C10G 70/04 (2006.01)
CPC (source: EP)
C10G 70/046 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0655492 A2 19950531; EP 0655492 A3 19951018; EP 0655492 B1 19990602; AU 696774 B2 19980917; AU 7897294 A 19950615; CA 2134821 A1 19950530; CA 2134821 C 20000516; CN 1039428 C 19980805; CN 1106055 A 19950802; DE 69418830 D1 19990708; JP 3566766 B2 20040915; JP H07207280 A 19950808; NO 309487 B1 20010205; NO 944098 D0 19941027; NO 944098 L 19950530; NZ 264809 A 19961028; PL 178744 B1 20000630; PL 306025 A1 19950612; RU 2100336 C1 19971227; RU 94041683 A 19961010; TR 28172 A 19960301
DOCDB simple family (application)
EP 94308703 A 19941124; AU 7897294 A 19941122; CA 2134821 A 19941101; CN 94118602 A 19941129; DE 69418830 T 19941124; JP 29461694 A 19941129; NO 944098 A 19941027; NZ 26480994 A 19941028; PL 30602594 A 19941128; RU 94041683 A 19941123; TR 118894 A 19941118