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首页> 外文期刊>Fuel Processing Technology >From cheap natural bauxite to high-efficient slurry-phase hydrocracking catalyst for high temperature coal tar: A simple hydrothermal modification
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From cheap natural bauxite to high-efficient slurry-phase hydrocracking catalyst for high temperature coal tar: A simple hydrothermal modification

机译：从廉价的天然铝土矿到高效浆液相加热催化剂的高温煤焦油：一种简单的水热改性

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摘要

Slurry-phase hydrocracking (SPHC) of unconventional heavy feedstocks is considered as a promising process to fill the gap between the ever-increasing demand for vehicle fuels and the fast-depleting supply of conventional crude oil. The one-through nature of SPHC processes requires low-cost yet high-performance catalyst. This article reports a simple but effective hydrothermal modification strategy to treat a cheap natural bauxite mineral as a support (HMB) to prepare SPHC catalyst (HMBC) with outstanding catalytic performance. For comparison, an acid-modified bauxite (AMB) derived catalyst (AMBC) was also prepared. The physicochemical properties of HMB, HMBC, AMB and AMBC were systematically characterized, and the catalytic performance of HMBC and AMBC was assessed in the SPHC of a high temperature coal tar (HTCT). The results showed that HMBC exhibited HTCT hydrocracking activity superior to AMBC, attributed to the more suitable acidity of the support HMB and the weaker interaction between MoO3 and HMB that results in the higher sulfidation degree of molybdenum oxide species and thereby provides more active MoS2 phases for hydrocracking. Furthermore, compared with the acid treatment previously reported, the hydrothermal modification is simpler, more energy-saving, and more environment-friendly and therefore is feasible for industrial application.
机译：非传统重型原料的浆液相加热（SPHC）被认为是填补越来越多的车辆燃料需求与常规原油供应的不断增长的需求之间的差距。 SPHC工艺的一致性需要低成本但高性能的催化剂。本文报告了一种简单但有效的水热改性策略，以治疗廉价的天然铝土矿矿物作为支撑（HMB），以制备具有出色催化性能的SPHC催化剂（HMBC）。为了比较，还制备了酸改性的铝土矿（AMB）衍生的催化剂（AMBC）。系统地描述了HMB，HMBC，AMB和AMBC的物理化学性质，并在高温煤焦油（HTCT）的SPHC中评估了HMBC和AMBC的催化性能。结果表明，HMBC表现出优于AMBC的HORCT加氢裂化活性，归因于载体HMB的更合适的酸度和MOO3和HMB之间的较弱相互作用，导致氧化钼物质的较高硫化程度，从而提供更多的活性MOS2阶段加氢裂化。此外，与先前报道的酸治疗相比，水热改性更简单，更节能，更具环境友好，因此适用于工业应用是可行的。

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  • 来源
    《Fuel Processing Technology》 |2018年第2018期|共8页
  • 作者

    Yue Yuanyuan; Li Jiawei; Dong Peng; Wang Tinghai; Jiang Lilong; Yuan Pei; Zhu Haibo; Bai Zhengshuai; Bao Xiaojun;

  • 作者单位

    Fuzhou Univ Natl Engn Res Ctr Chem Fertilizer Catalyst Coll Chem Engn Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Natl Engn Res Ctr Chem Fertilizer Catalyst Coll Chem Engn Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Natl Engn Res Ctr Chem Fertilizer Catalyst Coll Chem Engn Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Natl Engn Res Ctr Chem Fertilizer Catalyst Coll Chem Engn Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Natl Engn Res Ctr Chem Fertilizer Catalyst Coll Chem Engn Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Natl Engn Res Ctr Chem Fertilizer Catalyst Coll Chem Engn Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Natl Engn Res Ctr Chem Fertilizer Catalyst Coll Chem Engn Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Coll Chem State Key Lab Photocatalysis Energy Environm Fuzhou 350108 Fujian Peoples R China;

    Fuzhou Univ Coll Chem State Key Lab Photocatalysis Energy Environm Fuzhou 350108 Fujian Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 燃料化学工业（总论）;
  • 关键词

    Natural bauxite; Hydrothermal modification; Acid modification; Slurry-phase hydrocracking;

    机译：天然铝土矿;水热改性;酸改性;浆料相加氢裂化;

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