稀土金属氧化物对Y分子筛吸附脱硫性能的影响

孙林平 李飞 张龙

引用本文: 孙林平, 李飞, 张龙. 稀土金属氧化物对Y分子筛吸附脱硫性能的影响[J]. 燃料化学学报, 2013, 41(4): 499-505. shu
Citation:  SUN Lin-ping, LI Fei, ZHANG Long. Effects of rare-earth metal oxides on the desulfurization of Y zeolite[J]. Journal of Fuel Chemistry and Technology, 2013, 41(4): 499-505. shu

稀土金属氧化物对Y分子筛吸附脱硫性能的影响

    通讯作者: 张龙(1963-), 男, 教授, 从事精细化工的研究, Tel: 13504412257; E-mail: zhanglongzhl@163.com.
  • 基金项目:

    长春工业大学科学研究发展基金(2011LG12). (2011LG12)

摘要: 以Y分子筛为母体,采用浸渍法制备了Y2O3/Y、CeO2/Y和La2O3/Y三种吸附剂.以脱除正辛烷中的苯并噻吩为探针反应,考察了稀土金属氧化物负载量、吸附温度、吸附时间和剂油比对吸附剂脱硫性能的影响.结果表明,稀土金属氧化物最佳负载量为5%(质量分数),所得吸附剂在50 ℃、1 h、剂油比1∶30条件下,脱硫率均达到60%以上.甲苯的存在明显降低了吸附剂的脱硫性能.稀土金属氧化物在吸附过程中发生流失,在相同的条件下,三种稀土金属氧化物中,Y2O3的流失量最小,而CeO2的流失量最大,CeO2的流失量是Y2O3的10倍.

English

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  • 收稿日期:  2012-08-13
  • 网络出版日期:  2012-10-30
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