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MCM-41作载体制备磷化钼加氢脱硫催化剂

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Indexed by:期刊论文

Date of Publication:2007-02-12

Journal:石油炼制与化工

Included Journals:PKU、ISTIC、CSCD

Volume:38

Issue:2

Page Number:1-5

ISSN No.:1005-2399

Key Words:磷化钼;加氢脱硫;催化剂;制备;pH值

Abstract:通过原位还原方法制备了MCM-41担载的MoP催化剂并用TPR和XRD方法对其进行了表征.选用二苯并噻吩(DBT)作模型化合物,考察了催化剂的加氢脱硫(HDS)反应活性和产物分布.结果表明,MoP/MCM-41催化剂的HDS反应活性明显高于MoP/Al2O3催化剂,从加氢脱硫产物分布看,DBT在MoP/Al2O3催化剂上主要通过直接脱硫路径脱硫,而在MoP/MCM-41催化剂上,直接脱硫和预加氢脱硫路径都发挥了重要作用.由中性和碱性浸渍液制备催化剂的HDS活性相当,高于用酸性浸渍液制备的催化剂.

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