Nova Chemicals (International) S.a.

Nova Chemicals Inc.

Evan Mah

Vasily Simanzhenkov

Leslie Wilfred Benum

Grazyna Petela

Hany Farag

Michael Koselek

Bolaji Olayiwola

Jeffrey Thomas Kluthe

Kathleen Donnelly

Jeffrey Crowe

Leslie Benum

Jeffrey Xie

Jeffrey Kluthe

An anti-coking surface having a thickness up to 15 microns comprising from 15 to 50 wt. % of MnCrO(for example manganochromite); from 15 to 25 wt. % of CrMnNi(for example chromium manganese nickel); from 10 to 30 wt. % of CrFeO(for example chromium iron oxide); from 12 to 20 wt. % of CrO(for example eskolaite); from 4 to 20 wt. % of CuFeO(for example copper iron oxide); and less than 5 wt. % of one or more compounds chosen from FeO(OH), CrO(OH), CrMn, Si and SiO(either as silicon oxide or quartz) and less than 0.5 wt. % of aluminum in any form provided that the sum of the components is 100 wt. % is provided on steel.

Anti-coking iron spinel surface

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 H, CH, CO and COfrom 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.

Use of semipermeable membranes in cracking coils

A transfer line between the outlet of a steam cracker and the inlet for the quench system has metallic or ceramic inserts having a pore size from about 0.001 to about 0.5 microns inside the line forming a gas tight barrier with the inner surface of the line and having a vent for the resulting gas tight pocket are used to separate H, CH, CO and COfrom cracked gases reducing the load on the down-stream separation train of the steam cracker.

Transfer line

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Calgary, Canada

Evan Mah