US 12,264,124 B2
Methanol production process from syngas produced by catalytic partial oxidation integrated with cracking
Sivadinarayana Chinta, Sugar Land, TX (US); Ravichander Narayanaswamy, Bengaluru (IN); and Atul Pant, Bengaluru (IN)
Assigned to ENI S.P.A., Rome (IT)
Appl. No. 17/424,013
Filed by ENI S.p.A., Rome (IT)
PCT Filed Dec. 31, 2019, PCT No. PCT/US2019/069067
§ 371(c)(1), (2) Date Jul. 19, 2021,
PCT Pub. No. WO2020/150005, PCT Pub. Date Jul. 23, 2020.
Claims priority of provisional application 62/793,606, filed on Jan. 17, 2019.
Prior Publication US 2022/0081380 A1, Mar. 17, 2022
Int. Cl. C07C 29/151 (2006.01); B01D 53/047 (2006.01); B01D 53/22 (2006.01); C01B 3/38 (2006.01); C07C 5/333 (2006.01); F25J 1/00 (2006.01)
CPC C07C 29/1518 (2013.01) [B01D 53/047 (2013.01); B01D 53/229 (2013.01); C01B 3/382 (2013.01); C07C 5/333 (2013.01); B01D 2256/16 (2013.01); B01D 2256/24 (2013.01); B01D 2257/7022 (2013.01); C01B 2203/0261 (2013.01); C01B 2203/061 (2013.01); C01B 2203/062 (2013.01); C01B 2203/0833 (2013.01); F25J 1/001 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A process for producing syngas and olefins comprising:
(a) feeding a catalytic partial oxidation (CPO) reactant mixture to a CPO reactor; wherein the CPO reactant mixture comprises oxygen, first hydrocarbons, and optionally steam; wherein at least a portion of the CPO reactant mixture reacts, via a CPO reaction, in the CPO reactor to produce a CPO reactor effluent; wherein the CPO reactor comprises a CPO catalyst; wherein the CPO reactor effluent comprises hydrogen (H2), carbon monoxide (CO), carbon dioxide (CO2), water, and unreacted first hydrocarbons, and wherein the CPO reactor effluent is characterized by an M ratio of the CPO reactor effluent, wherein the M ratio is a molar ratio defined as (H2−CO2)/(CO+CO2);
(b) feeding a cracking unit feed to a cracking unit to produce a cracking unit product stream, a hydrogen-rich stream, and a hydrocarbon recovery stream; wherein the cracking unit feed comprises second hydrocarbons; wherein the first hydrocarbons and the second hydrocarbons are the same or different; wherein the cracking unit product stream comprises olefins; wherein the hydrogen-rich stream comprises hydrogen, methane, and optionally unreacted second hydrocarbons; and wherein the hydrocarbon recovery stream comprises C4+ hydrocarbons; and
(c) contacting at least a portion of the CPO reactor effluent with at least a portion of the hydrogen-rich stream to yield hydrogen-enriched syngas, wherein the hydrogen-enriched syngas is characterized by an M ratio of the hydrogen-enriched syngas, and wherein the M ratio of the hydrogen-enriched syngas is greater than the M ratio of the CPO reactor effluent.