logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10654781 B1

PDFFull Text
Date of Patent:
May. 19, 2020

Filed:

Nov. 26, 2015

Method of catalytic conversion of carbohydrates to low-carbon diols by using alloy catalysts

Applicant:

Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, CN;

Inventors:

Ruiyan Sun, Liaoning, CN;

Mingyuan Zheng, Liaoning, CN;

Tao Zhang, Liaoning, CN;

Jifeng Pang, Liaoning, CN;

Yu Jiang, Liaoning, CN;

Aiqin Wang, Liaoning, CN;

Xiaodong Wang, Liaoning, CN;

Assignee:

DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES, Dalian, Liaoning, CN;

Attorneys:

Novick, Kim & Lee, PLLC

Allen Xue

Primary Examiner:

Rosalynd A Keys

Int. Cl.
CPC ...
B01J 23/89 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B01J 23/62 (2006.01); B01J 33/00 (2006.01); B01J 25/02 (2006.01); B01J 37/18 (2006.01); B01J 23/835 (2006.01); C07C 29/132 (2006.01);
U.S. Cl.
CPC ...
C07C 29/132 (2013.01); B01J 23/626 (2013.01); B01J 23/835 (2013.01); B01J 23/892 (2013.01); B01J 23/8966 (2013.01); B01J 25/02 (2013.01); B01J 33/00 (2013.01); B01J 35/002 (2013.01); B01J 37/0201 (2013.01); B01J 37/0236 (2013.01); B01J 37/18 (2013.01); Y02P 20/52 (2015.11);
Abstract

This invention provides a method for catalytic conversion of carbohydrates to low-carbon diols using alloy catalysts. In the process, carbohydrates as the feedstock are subjected to one-step catalytic conversion to realize the highly efficient and selective production of ethylene glycol etc. under hydrothermal conditions, with an alloy catalyst composed of tin, and a transition metal such as iron, cobalt, nickel, rhodium, ruthenium, palladium, iridium, platinum and copper, or a mixture thereof. The reaction is carried out in water at a temperature range of 120-300° C., with a hydrogen pressure range of 1-13 MPa. Compared with the present petroleum based synthesis technology of ethylene glycol, the method in this invention possesses advantages of using renewable feedstock, high atom economy and environmental friendly. Besides, compared with other technologies using biomass as feedstock to produce ethylene glycol, the alloy catalyst in this invention possesses the advantages of few leaching amount, good hydrothermal stability and easy to recycle.

Find Patent Forward Citations

Loading…