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Recycling the CoMo/Al(2)O(3)catalyst for effectively hydro-upgrading shale oil with high sulfur content and viscosity

机译：再循环COMO / Al（2）O（3）催化剂以有效地用高硫含量和粘度液压升高的岩油油

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摘要

Hydrotreatment is an effective upgrading technology for removing contaminants and saturating double bonds. Still, few studies have reported the hydro-upgrading of shale oil, with unusually high sulfur (13200 ppm) content, using the CoMo/Al(2)O(3)catalyst. Here we report an extensive study on the upgrading of shale oil by hydrotreatment in a stirred batch autoclave reactor (500 ml) for sulfur removal and viscosity reduction. From a preliminary optimization of the reaction factors, the best-operating conditions were 400 degrees C, an initial H-2-pressure of 5 MPa, and an agitation rate of 800 rpm, a catalyst-to-oil ratio of 0.1, and a reaction time of 1 h. We could achieve a sulfur removal efficiency of 87.1% and 88.2% viscosity reduction under the optimal conditions. After that, the spent CoMo/Al(2)O(3)was repeatedly used for subsequent upgrading tests without any form of pre-treatment. The results showed an increase in the sulfur removal efficiency with an increase in the number of catalyst runs. Ultimately, 99.5-99.9% sulfur removal from the shale oil was achieved by recycling the spent material. Both the fresh and the spent CoMo/Al(2)O(3)were characterized and analyzed to ascertain their transformation levels by XRD, TEM, TG, XPS, TPD and N(2)adsorption analysis. The increasing HDS efficiency is attributed to the continuing rise in the sulfidation degree of the catalyst in the sulfur-rich shale oil. The light fraction component in the liquid products (IBP-180 degrees C) was 30-37 vol% higher than in the fresh shale oil. The product oil can meet the sulfur content requirement of the national standard marine fuel (GB17411-2015/XG1-2018) of China.
机译：加氢处理是一种用于去除污染物和饱和双键的有效升级技术。尽管如此，仍有少数研究报告了使用COMO / Al（2）O（3）催化剂的异常高硫（13200ppm）含量的岩油油升级。在这里，我们报告了对搅拌批量高压釜反应器（500mL）中的加氢处理升级的岩土油的广泛研究，用于硫去除和粘度降低。从反应因子的初步优化来看，最佳操作条件为400℃，初始H-2压力为5MPa，搅拌率为800rpm，催化剂 - 油比为0.1，以及a反应时间为1小时。我们可以在最佳条件下达到87.1％和88.2％粘度降低87.1％和88.2％的粘度降低。在此之后，废的CoMo / Al的（2）O（3）被反复用于随后升级试验没有任何形式的预处理。结果表明硫去除效率的增加随着催化剂的数量的增加而增加。最终，通过回收废料，实现了来自页岩油的99.5-99.9％硫去除。特征和分析新鲜和废物COMO / Al（2）O（3），以通过XRD，TEM，TG，XPS，TPD和N（2）吸附分析来确定其转化水平。随着HDS效率的增加归因于富含硫的页岩油中催化剂的硫化程度的持续上升。液体产品中的光馏分组分（IBP-180℃）比新鲜页岩油高30-37体积％。产品油可以满足中国国家标准海洋燃料（GB17411-2015 / XG1-2018）的硫磺含量要求。

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  • 来源
    《RSC Advances》 |2020年第61期|共12页
  • 作者

    Bello Suleiman Sabo; Wang Chao; Zhang Mengjuan; Han Zhennan; Shi Lei; Wang Kangjun; Zhong Ziyi; Su Fabing; Xu Guangwen;

  • 作者单位

    Shenyang Univ Chem Technol Key Lab Chem &

    Mat Resources Inst Ind Chem &

    Energy Technol Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Key Lab Chem &

    Mat Resources Inst Ind Chem &

    Energy Technol Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Key Lab Chem &

    Mat Resources Inst Ind Chem &

    Energy Technol Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Key Lab Chem &

    Mat Resources Inst Ind Chem &

    Energy Technol Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Key Lab Chem &

    Mat Resources Inst Ind Chem &

    Energy Technol Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Key Lab Chem &

    Mat Resources Inst Ind Chem &

    Energy Technol Shenyang 110142 Peoples R China;

    Univ Chinese Acad Sci Sch Chem Engn Beijing 100049 Peoples R China;

    Shenyang Univ Chem Technol Key Lab Chem &

    Mat Resources Inst Ind Chem &

    Energy Technol Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Key Lab Chem &

    Mat Resources Inst Ind Chem &

    Energy Technol Shenyang 110142 Peoples R China;

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  • 中图分类 化学;
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