• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Hydrotreatment of renewable oils using hierarchical mesoporous H-ZSM-5 synthesized from kaolin clay
【24h】

Hydrotreatment of renewable oils using hierarchical mesoporous H-ZSM-5 synthesized from kaolin clay

机译：高岭土合成的分级介孔H-ZSM-5加氢处理可再生油

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Hierarchical mesoporous ZSM-5 with tailored physicochemical properties was successfully synthesized by using kaolin clay as a cheap alumina source and organosilane as a mesopore directing agent. The synthesized material was used as a support for developing a hydroprocessing catalyst (Ni-Mo). Hydrotreatment of jatropha oil over sulfided Ni-Mo catalyst supported on the developed H-ZSM-5 was carried out. The influence of reaction conditions like temperature, pressure, and LHSV were studied in detail and the results were compared with those obtained for hydrotreatment of jatropha oil using mesoporous ZSM-5 synthesized from conventional precursors. It was observed that the C15-C18 hydrocarbon diesel yield was highest (93%) at a temperature of 375 degrees C, 50 bar pressure and 1.5 h(-1) LHSV, while the C9-C15 hydrocarbon yield (kerosene range) was maximum (37.4%) at a temperature of 425 degrees C, 80 bar pressure and 0.5 h(-)1 LHSV. The performance of clay derived catalyst for kerosene production was comparable with that of a conventional catalyst but at higher temperature. But the clay derived catalyst showed higher and more stable activity than the conventional mesoporous zeolite. This may be attributed to milder acidity (due to alumina patches), unlike conventional mesoporous zeolite which has more isolated Al sites and hence a greater number of acid sites.
机译：以高岭土为廉价氧化铝源，有机硅烷为介孔定向剂，成功地合成了具有适当理化性质的分层介孔ZSM-5。合成的材料用作开发加氢处理催化剂（Ni-Mo）的载体。在已开发的H-ZSM-5上负载的硫化Ni-Mo催化剂上进行了麻风树油的加氢处理。详细研究了反应条件如温度，压力和LHSV的影响，并将结果与​​使用由常规前体合成的介孔ZSM-5加氢处理麻风树油获得的结果进行了比较。观察到，在375摄氏度，50 bar压力和1.5 h（-1）LHSV的温度下，C15-C18碳氢化合物柴油收率最高（93％），而C9-C15碳氢化合物收率（煤油范围）最大（37.4％）在425摄氏度，80 bar压力和0.5 h（-）1 LHSV的条件下。粘土衍生的催化剂用于煤油生产的性能与常规催化剂相当，但是温度更高。但是，粘土衍生的催化剂显示出比常规的中孔沸石更高和更稳定的活性。这可能归因于较弱的酸度（由于氧化铝块），这与常规的介孔沸石不同，后者具有更多的分离的Al位点，因此具有更多的酸性位点。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号