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1. (WO2018078494) USE OF SEMIPERMEABLE MEMBRANES IN CRACKING COILS

Pub. No.:    WO/2018/078494    International Application No.:    PCT/IB2017/056510
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Oct 20 01:59:59 CEST 2017
IPC: C10G 9/36
C10G 9/20
F28F 1/00
B01D 53/22
B01J 8/00
B01D 71/02
C01B 3/50
C07C 7/144
F16L 9/02
Applicants: NOVA CHEMICALS (INTERNATIONAL) S.A.
Inventors: BENUM, Leslie
KOSELEK, Michael
SIMANZHENKOV, Vasily
FARAG, Hany
MAH, Evan
Title: USE OF SEMIPERMEABLE MEMBRANES IN CRACKING COILS
Abstract:
A pass or tube or a section thereof or "U" bend in a coil in a paraffin cracker having section having a pore size in the metal substrate from about 0.001 to 0.5 microns over coated with a dense metal membrane permits the permeation of one or more of H2, CH4, CO and CO2 from cracked gases moving the reaction equilibrium to the production of ethylene and reduces the load on the down-stream separation train of the steam cracker.