WANG Yujun1, ZHANG Jianhui1, LI Menghua1, WANG Dongjun2, JIA Yungang2,JIANG Wei2, ZHAO Zhongyang2, JIN Shuhan2, XIN Ying2
(1. Department of Chemical Engineering, Tsinghua University, Beijing 100195, China;2. PetroChina Petrochemical Research Institute, Beijing 100195, China)
Abstract: The preparation conditions of magnesium-alumina spinel mesoporous materials were studied by co-precipitation method in a membrane dispersion micro-reactor. The effects of preparation conditions on purity, grain size, crystal phase and pore structure of magnesium-alumina spinel were investigated, and Ni-Mo/MgAl2O4-γ-Al2O3 catalyst was formed; The hydrodeoxidized performance of the catalyst was evaluated in a high temperature and high pressure hydrogenation plant with 20% tung seed oil as feed. The results show that the magnesium-alumina spinel mesoporous materials with high mesoporous area and mesoporous volume are obtained under the concentration of raw material concentration 0.5 mol/L (the ratio of Magnesium and aluminum was 1 ∶2), solution pH of 11, the concentration of CTAB 0.001 mol/L, and the calcination temperature 1 000 ℃. Ni-Mo/MgAl2O4-γ-Al2O3 catalyst has high specific surface area and good mechanical and hydrothermal stability. Under the conditions of temperature from 360 to 390 ℃, pressure 4.0 MPa, airspeed 5.0 h-1, hydrogen-oil ratio 200, the yield of hydrodeoxidized oil is over 79%.
Keywords: membrane dispersion microreactor; co-precipitation method; magnesium-alumina spinel; hydrogenation deoxidization
文章编号：1008-5548(2020)03-0001-06
DOI:10.13732/j.issn.1008-5548.2020.03.001
中图分类号：TQ426.65 文献标志码：A
收稿日期： 2019-11-01，修回日期：2019-12-09，在线出版时间：2019-12-23 16:34。
基金项目：国家自然科学基金项目，编号：21878169。
第一作者简介：王玉军(1973—)，男，教授，博士生导师，研究方向为微反应器及纳米催化剂制备。E-mail：wangyujun@tsinghua.edu.cn。
