US 9,809,519 B1
Oxygenate synthesis and homologation
Monica D. Lotz, Houston, TX (US); Paul F. Keusenkothen, Houston, TX (US); and Michael Salciccioli, Houston, TX (US)
Assigned to ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed on Apr. 26, 2017, as Appl. No. 15/497,705.
Claims priority of provisional application 62/342,016, filed on May 26, 2016.
Claims priority of application No. 16182917 (EP), filed on Aug. 5, 2016.
Int. Cl. C07C 29/158 (2006.01); C07C 31/04 (2006.01); C07C 31/08 (2006.01); C07C 29/157 (2006.01); C07C 31/12 (2006.01); C07C 31/10 (2006.01); C07C 29/32 (2006.01)
CPC C07C 29/158 (2013.01) [C07C 29/157 (2013.01); C07C 29/32 (2013.01); C07C 31/04 (2013.01); C07C 31/08 (2013.01); C07C 31/10 (2013.01); C07C 31/12 (2013.01)] 29 Claims
 
1. A process for producing oxygenate, the process, comprising:
(a) providing a feed mixture comprising molecular hydrogen and ≧5 wt. % of carbon monoxide;
(b) providing a process fluid comprising at least one active material, the active material comprising at least one metal-containing compound which includes at least one of Co, Rh, Pd, Pt, Ni, Os, Ir, Cr, Mn, Fe, Re, and Ru; and wherein the process liquid further comprises:
(b1) at least one anionic compound comprising phosphorus and/or nitrogen and
(b2) at least one anionic compound comprising halogen
(c) producing a reaction mixture by reacting at least a portion of the feed mixture's CO and at least a portion of the feed mixture's molecular hydrogen in the presence of the process fluid under oxygenate formation conditions, wherein
(i) the reaction mixture comprises oxygenate produced by the reaction and at least a portion of any un-reacted feed mixture, and
(ii) the oxygenate comprises C2+ glycol, ethanol, and C3+ monohydric alcohol;
(d) separating from the reaction mixture (i) at least a portion of the ethanol, (ii) at least a portion of the C3+ monohydric alcohol, and (iii) at least a portion of the C2+ glycol;
(e) recycling to the reaction at least a liquid-phase portion of the separated ethanol; and
(f) conducting away at least a portion of the separated C3+ monohydric alcohol and at least a portion of the separated C2+ glycol.