公开(公告)号：US11807599B2

公开(公告)日：2023-11-07

申请号：US17637205

申请日：2020-08-06

Applicant: SHELL OIL COMPANY

Inventor： Kai Jürgen Fischer ,  Evert Van Der Heide ,  Peter Van De Haar ,  Udeogu Chijioke Onwusogh ,  Nicoleta Cristina Nenu

IPC: C07C68/04 ,  B01D3/00 ,  B01D3/14 ,  B01J31/10 ,  C07C68/08

CPC classification number: C07C68/04 ,  B01D3/009 ,  B01D3/143 ,  B01J31/10 ,  C07C68/08

Abstract: The present invention relates to a process for preparing an organic carbonate, comprising contacting carbon dioxide with an alcohol in the presence of water and a catalyst in a reaction zone resulting in the production of the organic carbonate, wherein the organic carbonate is continuously removed from the reaction zone.

公开(公告)号：US10590009B2

公开(公告)日：2020-03-17

申请号：US15738603

申请日：2016-06-23

Applicant: SHELL OIL COMPANY

Inventor： Kai Jürgen Fischer ,  Matthias Behn

IPC: C02F1/04 ,  B01D3/00 ,  B01D3/38 ,  B01D3/14 ,  B01D3/32 ,  B01D5/00 ,  C02F1/72 ,  C02F101/30 ,  C02F103/36

Abstract: The present invention relates to a method for treating a waste water stream. Said waste water comprises hydrocarbons and oxygenates such as alcohols, aldehydes, ketones, carboxylic acids, and has a COD of up to 5 wt %. The invention relates to a distillation column for treating a waste water stream and a system for treating a waste water stream.

公开(公告)号：US10266470B2

公开(公告)日：2019-04-23

申请号：US15564438

申请日：2016-04-05

Applicant: SHELL OIL COMPANY

Inventor： Pieter Huizenga ,  Kai Jürgen Fischer ,  Karin Bus ,  Waldo Eugene De Villiers ,  Carmelo Perez Golf

IPC: C07C29/82 ,  C07C29/80 ,  C07C31/20

Abstract: The invention provides a process for the separation of MEG and 1,2-BDO from a first mixture comprising MEG and 1,2-BDO in a weight ratio of at least 10:1 (MEG:1,2-BDO), said process comprising the steps of; (i) providing the first mixture as a feed to a distillation column at a point in the range of from 20 to 80% of the column height; (ii) operating the distillation at a temperature in the range of from 120 to 190° C. and at a pressure in the range of from 5 kPa to atmospheric pressure; (iii) removing an MEG stream from the distillation column at a point below the point at which the first mixture is fed; (iv) removing an overheads stream comprising an azeotrope of MEG and 1,2-BDO.