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OALib Journal期刊
ISSN: 2333-9721
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镍磷物质的量比对负载型ni2p/mcm-41催化剂结构及加氢脱硫性能的影响
, PP. 338-343
Keywords: 加氢脱硫,磷化镍,次磷酸铵,氯化镍,二苯并噻吩
Abstract:
？以mcm-41为载体,采用一种简捷、温和法制备了负载型ni2p/mcm-41催化剂。用h2程序升温还原(h2-tpr)、x射线衍射(xrd)、n2吸附比表面积测定(bet)和x射线光电子能谱(xps)分析对催化剂进行了表征。以1%(质量分数)二苯并噻吩(dbt)的十氢萘溶液为原料,在连续固定床反应装置上,研究了初始ni/p物质的量比对催化剂hds活性的影响,并考察了催化剂的稳定性。结果表明,初始ni/p物质的量比为1/2和1/3的前驱体,在390℃下还原时得到单一的ni2p相。初始ni/p物质的量为1/2时,得到的催化剂活性最好。在反应温度340℃、压力3.0mpa、氢/油体积比500、质量空速2.0h-1时,dbt的转化率接近100%。
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