公开(公告)号：US11767232B2

公开(公告)日：2023-09-26

申请号：US17367642

申请日：2021-07-06

Applicant: ZHEJIANG UNIVERSITY OF TECHNOLOGY

Inventor： Yong Nie ,  Shangzhi Yu ,  Xiaojiang Liang ,  Qinglong Xie ,  Zhenyu Wu ,  Jianfeng Bai

IPC: C02F1/04 ,  B01D53/48 ,  B01D53/81 ,  B01D53/96 ,  B01J23/96 ,  B01J38/12 ,  C02F1/16 ,  F23G7/07 ,  C02F101/10 ,  C02F101/30 ,  C02F103/36

CPC classification number: C02F1/048 ,  B01D53/48 ,  B01D53/81 ,  B01D53/96 ,  B01J23/96 ,  B01J38/12 ,  C02F1/043 ,  C02F1/16 ,  F23G7/07 ,  B01D2251/602 ,  B01D2255/1021 ,  B01D2257/30 ,  C02F2101/101 ,  C02F2101/30 ,  C02F2103/365 ,  C02F2209/03 ,  C02F2209/08

Abstract: The present invention provides a process for continuous treatment of high-concentration organic wastewater and a device for continuous treatment of high-concentration organic wastewater. The process of the present application is that: high-concentration organic wastewater is continuously separated through the synergistic interaction of a multilayer evaporator and a heat pump, and the generated wastewater steam containing light components is continuously subjected to desulfurization and catalytic combustion after being mixed with air in a gaseous form, the treated wastewater can meet discharge standards, and heavy components of the generated wastewater can be recycled. After the desulfurizing agent in a first desulfurizer and the catalyst in a first catalytic combustor are deactivated, the generated wastewater steam containing the light components can be switched to a second desulfurizer and a second catalytic combustor for reaction, and air can be introduced into the deactivated catalyst and desulfurizing agent for in-situ regeneration at a high temperature.

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.