Title:
PREPARATION METHOD FOR BIO-BASED 1,3-PROPANEDIOL
Document Type and Number:
WIPO Patent Application WO/2023/010982
Kind Code:
A1
Abstract:
Provided is a preparation method for bio-based 1,3-propanediol, comprising: using renewable biomass as a raw material, using Klebsiella fermentation to produce 1,3-propanediol, obtaining a 1,3-propanediol fermentation broth, and then successively performing ultrafiltration, nanofiltration, electrodialysis and multiple-effect evaporation in sequence, then employing a first distillation column to perform dewatering and distillation, employing a first decolorization column to adsorb and decolorize a distillate, separating a dealcoholized liquid containing 1,3-propanediol in a second distillation column, producing crude 1,3-propanediol in a third distillation column, and employing a second decolorization tower to perform activated carbon adsorption decolorization of the crude 1,3-propanediol, the activated carbon in the first decolorization tower being a second utilization of the activated carbon after decolorization of the crude 1,3-propanediol. The purity of 1,3-propanediol prepared by the present method can exceed 99.9%, the color thereof is ≤10 Hazen, and there is no peculiar smell. 270 nm absorbance of the 1,3-propanediol product is ≤0.08, and the activated carbon utilization rate is high.
Inventors:
LUO JI'AN (CN)
ZHANG YEXING (CN)
ZHANG YUN (CN)
SHI GUOZHU (CN)
LIU BIN (CN)
ZHANG HAO (CN)
CHEN LILIANG (CN)
ZHANG YEXING (CN)
ZHANG YUN (CN)
SHI GUOZHU (CN)
LIU BIN (CN)
ZHANG HAO (CN)
CHEN LILIANG (CN)
Application Number:
PCT/CN2022/096616
Publication Date:
February 09, 2023
Filing Date:
June 01, 2022
Export Citation:
Assignee:
SUZHOU SUZHEN BIOENGINEERING CO LTD (CN)
International Classes:
C12P7/18; C07C29/76; C07C29/80; C07C31/20; C12R1/22
Domestic Patent References:
| WO2004101479A2 | 2004-11-25 |
Foreign References:
| CN113337548A | 2021-09-03 | |||
| CN112321391A | 2021-02-05 | |||
| CN106748648A | 2017-05-31 | |||
| CN101659681A | 2010-03-03 | |||
| CN104788288A | 2015-07-22 |
Other References:
LUO JIAN, SHI GUO-ZHU; FANG JIAN-JUN; YANG DE-HUA; ZHANG YUN: "Optimization of 1.3-Propanediol Extraction Process by Distillation", CHEMICAL ENGINEERING DESIGN COMMUNICATIONS, HUNAN CHEMICAL AND PHARMACEUTICAL DESIGN INSTITUTE, CN, vol. 44, no. 7, 31 July 2018 (2018-07-31), CN , pages 77 - 78, XP093031785, ISSN: 1003-6490
WANG SHIZHEN, LONGHUI QIU, HONGFEI DAI, XIAOFEI ZENG, BAISHAN FANG: "Highly pure 1, 3-propanediol: Separation and purification from crude glycerol-based fermentation", ENGINEERING IN LIFE SCIENCES, vol. 15, no. 8, 18 May 2015 (2015-05-18), pages 788 - 796, XP093031787, DOI: 10.1002/elsc.201500004
WANG SHIZHEN, LONGHUI QIU, HONGFEI DAI, XIAOFEI ZENG, BAISHAN FANG: "Highly pure 1, 3-propanediol: Separation and purification from crude glycerol-based fermentation", ENGINEERING IN LIFE SCIENCES, vol. 15, no. 8, 18 May 2015 (2015-05-18), pages 788 - 796, XP093031787, DOI: 10.1002/elsc.201500004
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)
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