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现代化工  2021, Vol. 41 Issue (4): 122-126,131    DOI: 10.16606/j.cnki.issn0253-4320.2021.04.026
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
以B2O3改性γ-Al2O3为载体制备低P/Ni摩尔比磷化镍加氢脱硫催化剂的研究
Muhammad Waqas Qureshi1, 楚爽1, 李翔2, 周学荣1, 何明1, 王安杰1
1. 大连理工大学化工学院, 辽宁 大连 116024;
2. 天津科技大学化工与材料学院, 天津 300457
Preparation of nickel phosphide hydrodesulfurization catalysts with low P/Ni ratio using B2O3 modified γ-Al2O3 as support
MUHAMMAD Waqas Qureshi1, CHU Shuang1, LI Xiang2, ZHOU Xue-rong1, HE Ming1, WANG An-jie1
1. School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China;
2. College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China
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摘要 采用等体积浸渍法在γ-Al2O3中引入了B2O3,以较低P/Ni摩尔比(1.2)的磷酸盐作前驱体,利用程序升温还原法制备了以Al2O3为载体的磷化镍催化剂,并考察了催化剂的加氢脱硫反应性能。结果表明,B2O3抑制了Al2O3与磷酸盐之间的反应,降低了磷损失。获得Ni2P所需的最低B2O3质量分数在10%~20%之间。当B2O3质量分数≤10%时,主要得到Ni12P5。在γ-Al2O3载体中引入B2O3显著提高了催化剂的加氢脱硫活性,但B2O3质量分数大于10%时催化剂的活性降低。二苯并噻吩在磷化镍催化剂上主要通过直接脱硫路径进行反应,引入B2O3提高了磷化镍催化剂酸性和加氢选择性。
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Muhammad Waqas Qureshi
楚爽
李翔
周学荣
何明
王安杰
关键词:  Ni2P  γ-Al2O3  程序升温还原  B2O3  加氢脱硫    
Abstract: B2O3 is inserted into γ-Al2O3 by an incipient wetness impregnation method,which is used as a support to prepare nickel phosphide catalysts through temperature-programmed reduction method using a nickel phosphate precursor with a low P/Ni ratio (1.2).The hydrodesulfurization performance of the catalyst is investigated.It is demonstrated that B2O3 may hinder the loss of phosphorus by inhibiting the reaction between phosphate precursors and γ-Al2O3.The minimum content of B2O3 in γ-Al2O3 required for the preparation of Ni2P shall be between 10 wt% and 20 wt%.Ni12P5 will be obtained if the content of B2O3 is below 10 wt%.Addition of B2O3 in γ-Al2O3 support can lift up the hydrodesulfurization activity of the catalyst,but the activity will drop if the content of B2O3 exceeds 10%.Dibenzothiophene reacts on nickel phosphide catalyst mainly through direct desulfurization pathway,and the addition of B2O3 favors the hydrogenation pathway.
Key words:  Ni2P    γ-Al2O3    TPR    B2O3    hydrodesulfurization
收稿日期:  2020-05-13      修回日期:  2021-02-04          
ZTFLH:  TE624.9  
基金资助: 国家自然科学基金(21673029和21603024);天津市自然科学基金重点项目(19JCZDJC31700);重质油国家重点实验室开放基金(SKLOP202002003)
通讯作者:  李翔(1973-),男,博士,教授,研究方向为油品加氢脱硫,通讯联系人,lixiang@tust.edu.cn。    E-mail:  lixiang@tust.edu.cn
作者简介:  Muhammad Waqas Qureshi (1990-),男,硕士研究生,研究方向为加氢脱硫,waqas-qureshi50@yahoo.com
引用本文:    
Muhammad Waqas Qureshi, 楚爽, 李翔, 周学荣, 何明, 王安杰. 以B2O3改性γ-Al2O3为载体制备低P/Ni摩尔比磷化镍加氢脱硫催化剂的研究[J]. 现代化工, 2021, 41(4): 122-126,131.
MUHAMMAD Waqas Qureshi, CHU Shuang, LI Xiang, ZHOU Xue-rong, HE Ming, WANG An-jie. Preparation of nickel phosphide hydrodesulfurization catalysts with low P/Ni ratio using B2O3 modified γ-Al2O3 as support. Modern Chemical Industry, 2021, 41(4): 122-126,131.
链接本文:  
https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2021.04.026  或          https://www.xdhg.com.cn/CN/Y2021/V41/I4/122
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