化工进展 ›› 2015, Vol. 34 ›› Issue (07): 1877-1881.DOI: 10.16085/j.issn.1000-6613.2015.07.011

• 工业催化 • 上一篇    下一篇

以单质硫为硫化介质的加氢催化剂间歇釜器外预硫化工艺

孟祥彬1, 高善彬1, 胡胜2, 于春梅1, 孙发民1, 刘李佳3   

  1. 1 中国石油石油化工研究院大庆化工研究中心, 黑龙江 大庆 163714;
    2 中国石油石油化工研究院, 北京 100195;
    3 中国石油大庆石化公司腈纶厂, 黑龙江 大庆 163714
  • 收稿日期:2014-10-27 修回日期:2015-01-09 出版日期:2015-07-05 发布日期:2015-07-05
  • 通讯作者: 孟祥彬(1964—),男,工程师,从事加氢催化剂及工艺研究。E-mail:Mengxb459@petrochina.com.cn。
  • 作者简介:孟祥彬(1964—),男,工程师,从事加氢催化剂及工艺研究。E-mail:Mengxb459@petrochina.com.cn。

Presulfidation with sulphur for hydrogenation catalyst in a batch reactor

MENG Xiangbin1, GAO Shanbin1, HU Sheng2, YU Chunmei1, SUN Famin1, LIU Lijia3   

  1. 1 Daqing Petrochemical Research Center of Petrochemical Research Institute, Daqing 163714, Heilongjiang, China;
    2 Petrochemical Research Institute, Beijing 100195, China;
    3 Daqing Petrochemical Company Acrylic Fiber Plant, Daqing 163714, Heilongjiang, China
  • Received:2014-10-27 Revised:2015-01-09 Online:2015-07-05 Published:2015-07-05

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摘要： 利用间歇釜研究了以单质硫为硫化介质, 对一种Co-Mo-Ni/Al2O3加氢催化剂进行器外预硫化时, 硫和氢气配比、硫用量、初始反应温度及时间、硫化终温和时间等工艺条件对硫化效果的影响, 并对不同状态催化剂进行了XRD、SEM及BET的分析表征。以硫化度作为硫化效果评价指标, 确定优化的硫化条件:硫为1.2倍理论消耗量, 硫和氢气摩尔配比1:3, 低温硫化和高温硫化温度分别为160℃和320℃, 两段恒温硫化时间分别为3h和2h。对硫化后的催化剂进行了真实原料的加氢活性评价, 实验结果表明, 以单质硫作为硫化介质, 利用歇釜可满足器外预硫化的需求, 与器内硫化相比, 硫化度和加氢活性等具有明显优势。

关键词: 加氢, 催化剂活化, 间歇式, 单质硫, 预硫化, 器外

Abstract: The ex-situ presulfidation for a Co-Mo-Ni/Al2O3 hydrogenation catalyst was investigated with sulphur in a batch reactor, the effects of different factors, such as the ratio of S and H2, the dosage of S, initial and final presulfidation temperatures and their constant time, were studied, while sulfidity was used as evaluating index, and catalysts were characterized by XRD, SEM, and BET. Suitable reaction condition was obtained as:Sulphur was 1.2 times of theoretical value, the proportion of S and H2 was 1:3, together with 3h of reaction at 160℃ and 2h of final reaction at 320℃. After presulfidation, the hydrogenation activity of presulfided catalyst was measured by industrial feed hydroreaction in microreactor. The results indicated that this technology is feasible and the activity of catalyst, which was presulfided with sulphur in a batch reactor, is better than that of in-situ process.

Key words: hydrogenation, catalyst activation, batchwise, sulphur, presulfidation, ex-situ

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