公开(公告)号：US09926253B2

公开(公告)日：2018-03-27

申请号：US15605915

申请日：2017-05-25

Applicant: ZHEJIANG UNIVERSITY OF TECHNOLOGY

Inventor： Yong Nie ,  Qinglong Xie ,  Ruchao Gong ,  Ying Duan ,  Shanshan Li ,  Yang Liu ,  Xiaojiang Liang ,  Zhenyu Wu ,  Meizhen Lu ,  Fengwen Yu ,  Jianbing Ji

IPC: C07C45/52 ,  B01J23/00 ,  B01J27/00 ,  C07C45/00 ,  B01J23/30 ,  B01J27/188 ,  B01J35/00

CPC classification number: B01J27/188 ,  B01J23/30 ,  B01J27/224 ,  B01J38/00 ,  C07C45/52 ,  C07C47/22

Abstract: A novel method for catalytic dehydration of glycerol to acrolein is provided. A fixed bed reactor is used, which is placed in a microwave unit. The feedstock is introduced into the fixed bed reactor after being preheated and gasified. Continuous glycerol dehydration occurs in the presence of a microwave-absorbing catalyst in the fixed bed reactor to form acrolein. The microwave-absorbing catalyst is composed of an active component loaded on a core-shell structure which consists of microwave absorbent coated by an oxide. The uniformity of microwave heating can reduce the formation of hot spot during the reaction and hence improve the catalyst stability. The process and operation is simple, and the unit can steadily run for a long time.

公开(公告)号：US10081590B2

公开(公告)日：2018-09-25

申请号：US15687470

申请日：2017-08-26

Applicant: Zhejiang University of Technology

Inventor： Yong Nie ,  Ying Duan ,  Ruchao Gong ,  Shangzhi Yu ,  Meizhen Lu ,  Jianbing Ji

IPC: C07C67/333 ,  B01J19/12 ,  B01J8/02

CPC classification number: C07C67/333 ,  B01J8/0285 ,  B01J19/126 ,  B01J2208/00176 ,  B01J2208/00442 ,  B01J2208/0053 ,  B01J2219/0801 ,  B01J2219/0869 ,  B01J2219/0871 ,  B01J2219/0892 ,  B01J2219/1215 ,  B01J2219/1245 ,  Y02P20/123 ,  C07C69/533

Abstract: A device and a process for producing undecylenic acid methyl ester using methyl ricinoleate as raw material are provided. The device comprises a feed pump, a raw material pre-heater, a microwave catalytic reactor, a microwave generator, a temperature controller and an infrared sensor, a condenser, a product tank and a discharge pump. The feed pump is connected with the raw material pre-heater, which is connected with the inlet of the microwave catalytic reactor. The outlet of the microwave catalytic reactor is connected with the condenser, which is connected to the product tank and the discharge pump. The microwave catalytic reactor is located in the microwave generator, which is connected with the temperature controller and the infrared sensor. The process is as follows: high-purity methyl ricinoleate, used as the raw material, is converted to methyl undecene and heptaldehyde by microwave-assisted pyrolysis process, followed by isolation and purification to produce methyl undecene.