| 苏继新,肖天存,王海涛,殷永泉,鹿玉理,杨兆荷.重油加氢脱硫NiMo/V-Al_2O_3催化剂的失活研究[J].分子催化,1999,(4): |
| 重油加氢脱硫NiMo/V-Al_2O_3催化剂的失活研究 |
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| DOI： |
| 中文关键词: 重油,加氢脱硫,失活,积炭,金属沉积 |
| 英文关键词:Heavy oil,Hydrodesulfurization,Deactivation,Deposited carbon,Deposited metal |
| 基金项目:山东省优秀中青年科学家科研奖励基金,山东大学晶体材料国家重点实验室开放室资助 |
| 苏继新 肖天存 王海涛 殷永泉 鹿玉理 杨兆荷 |
山东大学环境工程系!济南250100(苏继新，肖天存，王海涛，殷永泉，鹿玉理)
，山东大学晶体材料国家重点实验室!济南250100(杨兆荷)
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| 中文摘要: |
| 收集了工业上用于重油加氢脱硫的 Ｎｉ Ｍ ｏ／γ Ａｌ２ Ｏ３ 失活催化剂， 用超声波萃取， 超临界流体萃取（ Ｓ Ｆ Ｅ）等方法对其进行了处理， 用热重（ Ｔ Ｇ）、差热分析（ Ｄ Ｔ Ａ）、程序升温氧化 质谱（ Ｔ Ｐ Ｏ Ｍ Ｓ）、扫描电镜 能谱仪（ Ｓ Ｅ Ｍ Ｅ Ｄ Ｓ）、 Ｘ 射线衍射仪（ Ｘ Ｒ Ｄ）、程序升温还原（ Ｔ Ｐ Ｒ）等方法对处理前后的催化剂进行了表征， 探讨了导致催化剂失活的主要原因． 结果表明， 积炭， 金属沉积是催化剂失活的主要原因， 经去除沉积的金属和烧炭后， 失活重油加氢催化剂的活性状态可得到恢复， 同时失活催化剂从工业反应器中的卸出方式也会对催化剂的性质产生影响． |
| 英文摘要: |
| Spent industrial catalyst samples for hydrodesulfurization(HDS) of heavy oil were collected and treated by ultrasonic washing and supercritical fluid extraction. The samples were characterized by mean of various techniques: TPO\|MS, TG, DTA, SEM\|EDS, XRD and TPR, and the reasons for the deactivation of the catalyst were studied. It's shown that deposited carbon and deposited metals on the catalysts were the main factors resulting in the deactivation, and state of the active elements on the catalysts can be restored and improved by removing the deposited carbon and deposited metals. The method used to unload the deactivated catalysts from industrial reactor also has some effect on their chemicophysical properties . |
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