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Synthesis and characterization of new hydrodesulphurization Co-Mo catalysts supported on calcined and pyrolyzed bone

机译:煅烧和热解骨支持的新加氢硫化CO-MO催化剂的合成与表征

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摘要

A series of cobalt-molybdenum catalysts supported on calcined bone (hydroxyapatite, HAP) and pyrolyzed bone (hydroxyapatite-carbon, HAP-C) have been prepared by an impregnation method. The catalysts were characterized by XRD, FT-IR spectroscopy, UV-Vis spectroscopy, TPR, TPD of CO2, BET, FE-SEM, EDX and TEM techniques. Hydrodesulphurization (HDS) experiments were carried out in a fixed-bed reactor at 15 bar hydrogen pressure, liquid hourly space velocity (LHSV) of 4.5 h(-1), a volumetric hydrogen/feed ratio of 175 NL L-1 and 310 degrees C. HDS reactions of dibenzothiophene (DBT), dimethyl disulfide (DMDS) and industrial naphtha over the synthesized catalysts were investigated. The Co-Mo/HAP-C and Co-Mo/HAP catalysts displayed a satisfactory performance comparable with the commercial catalyst. Co-Mo/Al2O3 and Co-Mo/HAP catalysts were tested for hydrodesulphurization of DMDS, and Co-Mo/HAP showed a higher activity than the commercial catalyst (Co-Mo/Al2O3) and lowered the sulfur content of the feedstock from 2500 ppm to 9 ppm.
机译:通过浸渍方法制备了一系列支持煅烧骨(羟基磷灰石,HAP)和热解骨(羟基磷灰石 - 碳,HAP-C)的钴 - 钼催化剂。催化剂的特征在于XRD,FT-IR光谱,UV-Vis光谱,TPR,CO 2的TPR,BET,FE-SEM,EDX和TEM技术。在4.5小时(-1)的液体小时空间速度(LHSV),175nl L-1和310度的体积氢/进料比中,在固定床反应器中在固定床反应器中进行加氢脱硫(HDS)实验。研究了二苯并噻吩(DBT),二甲基二硫化物(DMDS)和合成催化剂上的产业石脑油的HDS反应。 Co-Mo / Hap-C和Co-Mo / Hap催化剂显示出与商业催化剂相当的令人满意的性能。测试Co-Mo / Al 2 O 3和Co-Mo / Hap催化剂的DMDS加氢脱硫,并且Co-Mo / Hap显示出比商业催化剂(Co-Mo / Al 2 O 3)的活性更高,并降低了2500的原料的硫含量ppm至9 ppm。

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  • 来源
    《RSC Advances》 |2015年第51期|共10页
  • 作者单位

    Isfahan Univ Technol Dept Chem Esfahan Iran;

    Isfahan Univ Technol Dept Chem Esfahan Iran;

    Isfahan Univ Technol Dept Chem Esfahan Iran;

    Res Inst Petr Ind Gas Res Ctr Tehran Iran;

    Univ Publ Navarra Dept Appl Chem Pamplona 31006 Spain;

    Isfahan Univ Technol Dept Chem Esfahan Iran;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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