公开(公告)号：US20240317659A2

公开(公告)日：2024-09-26

申请号：US18245572

申请日：2021-10-04

Applicant: SHELL OIL COMPANY

Inventor： Pieter HUIZENGA ,  Eugene VAN KRUCHTEN ,  Karin BUS

IPC: C07C29/84 ,  C07C29/17 ,  C07C29/82

CPC classification number: C07C29/84 ,  C07C29/172 ,  C07C29/82

Abstract: The invention provides a process for the separation of a diol from a product stream. The process includes the steps of: i) separating the product stream comprising three or more C2 to C6 diols, C3 to C6 sugar alcohols, and C4 to C6 polyhydric alcohols with at least 3 hydroxyl groups in the molecule, and a catalyst, to produce a first stream comprising the three or more C2 to C6 diols; ii) separating the first stream comprising the three or more C2 to C6 diols into a) a second stream comprising a first diol and unsaturated hydrocarbons and/or one or more compounds with a carbonyl group and b) a third stream comprising two or more diols; iii) hydrogenating the second stream comprising a first diol and unsaturated hydrocarbons and/or one or more compounds with a carbonyl group to provide a purified diol stream.