Invention Grant
- Patent Title: Process for the separation of glycols
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Application No.: US15761616Application Date: 2016-09-21
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Publication No.: US10308577B2Publication Date: 2019-06-04
- Inventor: Carmelo Perez Golf , Evert Van Der Heide , Pieter Huizenga , Kai Jurgen Fischer
- Applicant: SHELL OIL COMPANY
- Applicant Address: US TX Houston
- Assignee: SHELL OIL COMPANY
- Current Assignee: SHELL OIL COMPANY
- Current Assignee Address: US TX Houston
- Priority: EP15186563 20150923; EP16170910 20160523
- International Application: PCT/EP2016/072465 WO 20160921
- International Announcement: WO2017/050847 WO 20170330
- Main IPC: C07C29/80
- IPC: C07C29/80 ; C07C29/84

Abstract:
A process for the production of high purity mono-ethylene glycol (MEG) from a product stream of a saccharide hydrogenolysis process. The process having the steps of: (i) removing solvent from the product stream to provide a solvent-lean product stream; (ii) subjecting the solvent-lean product stream to distillation to provide a bottoms stream comprising high boiling by-products and a top stream comprising a mixture comprising MEG and 1,2-butanediol (1,2-BDO); (iii) providing said mixture having MEG and 1,2-BDO as a feed to a distillation column; (iv) providing a feed comprising an extractant of C3 to C6 alcohols and mixtures thereof to the distillation column above the mixture comprising MEG and 1,2-BDO; (v) removing a stream comprising MEG and the extractant as a bottoms stream from the distillation column; and (vi) subjecting the stream comprising MEG and the extractant to distillation to provide a top stream comprising high purity MEG.
Public/Granted literature
- US20190062244A1 PROCESS FOR THE SEPARATION OF GLYCOLS Public/Granted day:2019-02-28
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