公开(公告)号：US12006299B2

公开(公告)日：2024-06-11

申请号：US17637197

申请日：2020-09-01

Applicant: SHELL OIL COMPANY

Inventor： Jesse Raymond Black ,  Roel Guillaume Hubertus Leonardus Bastings ,  Mark Albert Petrus Dekkers

IPC: C07D317/38 ,  B01D3/14 ,  C07C29/10 ,  C07C29/76 ,  C07C29/80

CPC classification number: C07D317/38 ,  B01D3/148 ,  C07C29/106 ,  C07C29/76 ,  C07C29/80

Abstract: The invention relates to a process for producing ethylene carbonate and/or ethylene glycol, which comprises the following steps: a) supplying an overhead absorber stream withdrawn from an absorber to a vapor-liquid separator to yield an aqueous bottoms stream and a recycle gas stream; b) supplying an aqueous process stream comprising one or more impurities to a distillation apparatus to yield an overhead impurities stream and a purified aqueous process stream, wherein the aqueous process stream supplied to the distillation apparatus comprises at least a portion of the aqueous bottoms stream withdrawn from the vapor-liquid separator, wherein the overhead impurities stream is supplied to a condenser and is cooled to a temperature in the range of from 5 to 95° C., wherein the cooled overhead impurities stream is split into a reflux stream which is recycled to the distillation apparatus and an overhead impurities stream; and further steps c) and d).