US 11,891,357 B2
Process to produce ethylene and vinyl acetate monomer and derivatives thereof
David Gent, Red Deer (CA); Shahin Goodarznia, Calgary (CA); Vasily Simanzhenkov, Calgary (CA); Kamal Serhal, Calgary (CA); Claire Ennis, Calgary (CA); and Robert Ladd, Airdrie (CA)
Assigned to NOVA Chemicals (International) S.A., Fribourg (CH)
Appl. No. 16/977,601
Filed by NOVA Chemicals (International) S.A., Fribourg (CH)
PCT Filed Mar. 8, 2019, PCT No. PCT/IB2019/051919
§ 371(c)(1), (2) Date Sep. 2, 2020,
PCT Pub. No. WO2019/175732, PCT Pub. Date Sep. 19, 2019.
Claims priority of provisional application 62/743,775, filed on Oct. 10, 2018.
Claims priority of provisional application 62/741,705, filed on Oct. 5, 2018.
Claims priority of provisional application 62/642,265, filed on Mar. 13, 2018.
Prior Publication US 2021/0040018 A1, Feb. 11, 2021
Int. Cl. C07C 5/48 (2006.01); B01J 19/24 (2006.01); B01J 21/08 (2006.01); B01J 23/26 (2006.01); B01J 23/34 (2006.01); B01J 23/656 (2006.01); B01J 23/66 (2006.01); C07C 5/09 (2006.01); C07C 67/05 (2006.01); C08F 10/02 (2006.01); B01J 23/83 (2006.01)
CPC C07C 5/48 (2013.01) [B01J 19/245 (2013.01); B01J 21/08 (2013.01); B01J 23/26 (2013.01); B01J 23/34 (2013.01); B01J 23/6565 (2013.01); B01J 23/66 (2013.01); B01J 23/83 (2013.01); C07C 5/09 (2013.01); C07C 67/05 (2013.01); C08F 10/02 (2013.01); B01J 2219/0004 (2013.01); C07C 2521/08 (2013.01); C07C 2523/26 (2013.01); C07C 2523/34 (2013.01); C07C 2523/656 (2013.01); C07C 2523/66 (2013.01); C07C 2523/83 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method of converting ethane to ethylene and producing vinyl acetate comprising:
a. providing a first stream comprising ethane and oxygen to an oxidative dehydrogenation reactor;
b. converting at least a portion of the ethane to ethylene and acetic acid in the oxidative dehydrogenation reactor to provide a second stream exiting the oxidative dehydrogenation reactor comprising ethane, ethylene, acetic acid, oxygen and carbon monoxide;
c. separating at least a portion of the acetic acid from the second stream to provide an acetic acid containing stream and a third stream comprising ethane, ethylene, oxygen and carbon monoxide;
d. separating at least a portion of the third stream to provide a C2/C2+ hydrocarbons stream and an overhead stream comprising Cl hydrocarbons;
e. separating oxygen from the overhead stream, and sending an oxygen enhanced recycle stream to the oxidative dehydrogenation reactor;
f. providing the third stream to a CO Oxidation Reactor containing a catalyst comprising a group 11 metal and optionally a promoter comprising CeO2, ZrO2 and combinations thereof to convert a least a portion of the carbon monoxide to carbon dioxide and reacting any acetylene in the third stream to produce a fourth stream comprising ethane, ethylene and carbon dioxide; and
g. providing a portion of the fourth stream and at least a portion of the acetic acid containing stream to a third reactor containing a catalyst comprising a metal selected from the group 10 and group 11 metals and combinations thereof to convert a least a portion of the ethylene and acetic acid to vinyl acetate.