Title:
METHOD FOR CATALYZING SELECTIVE HYDROGENOLYSIS OF LIGNIN BY NICKEL-BASE MATERIAL LOADED BY ZIRCONIUM PHOSPHATE
Document Type and Number:
WIPO Patent Application WO/2019/196379
Kind Code:
A1
Abstract:
Disclosed is a method for catalyzing selective hydrogenolysis of lignin by a nickel-base material loaded by zirconium phosphate. The method is used for preparing a monophenol chemical substance by means of hydrogenolysis. The method comprises: using a renewable biomass as a raw material, adding a nickel-base catalyst to an alcohol solution reaction medium, adjusting a ratio of phosphate to zirconium in a carrier of the catalyst and the reaction temperature, and performing selective catalytic hydrogenolysis on the raw material under the conditions that the pressure is 1-4 MPa H 2 and the reaction time is 1-5 h to form a monophenol chemical substance with high additional value. In the carrier of the catalyst, the ratio of phosphate to zirconium is 1:(1-3), and the loading amount of Ni is 5 wt%-25 wt%. According to the present invention, the conversion rate of lignin is greater than 85.1%; the yield of monophenol is greater than 13.0%; the selectivity of 4-ethylphenol is greater than 38.3%. The method is simple in process, comprises mild reaction conditions, and can be used for uncontinuous and continuous production. The obtained small molecule product can be used as a chemical substance with high additional value, and can also be used as a biomass fuel precursor.
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Inventors:
LI XUEHUI (CN)
MA HONGWEI (CN)
LONG JINXING (CN)
ZHAO WEIJIE (CN)
LI HAOWEI (CN)
MA HONGWEI (CN)
LONG JINXING (CN)
ZHAO WEIJIE (CN)
LI HAOWEI (CN)
Application Number:
PCT/CN2018/111615
Publication Date:
October 17, 2019
Filing Date:
October 24, 2018
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
C07C37/54; B01J27/185; B01J37/02; B01J37/03; B01J37/08; C07C39/04; C07C39/06; C07C39/07; C07C41/01; C07C43/23; C07C59/52; C07C65/21
Domestic Patent References:
| WO2017014354A1 | 2017-01-26 |
Foreign References:
| CN108558608A | 2018-09-21 | |||
| CN107235829A | 2017-10-10 | |||
| CN106582736A | 2017-04-26 | |||
| CN104177223A | 2014-12-03 |
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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