| 谌伟庆,黄勇,石秋杰.APTS改性SBA-15负载Ni-B非晶态合金催化加氢脱硫性能的研究[J].分子催化,2012,(2):148-153 |
| APTS改性SBA-15负载Ni-B非晶态合金催化加氢脱硫性能的研究 |
| Study on Hydrodesulfurization Performance of Ni-B Amorphous Alloy Catalyst Supported by APTS Modified SBA-15 |
| 投稿时间：2011-12-19 修订日期：2012-03-12 |
| DOI： |
| 中文关键词: SBA-15 Ni-B合金 非晶态催化剂 加氢脱硫 APTS |
| 英文关键词:SBA-15, Ni-B alloy, amorphous catalyst, hydrodesulfurization, APTS |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 本文采用共价接枝法制备APTS改性介孔分子筛SBA-15，将氨基官能团接枝到SBA-15表面。并采用化学还原法制备了Ni-B/SBA-15-APTS非晶态合金催化剂，以噻吩加氢脱硫为探针反应，研究了其催化加氢脱硫性能。结果表明，240℃时，APTS改性SBA-15所负载的Ni-B催化剂噻吩转化率达到50.8%，较未改性SBA-15所负载的催化剂噻吩转化率有显著地提高。由于氨基与Ni2 的络合作用，有助于Ni在催化剂中的分散，因而更容易被还原。ICP结果表明，在相同的制备条件下，相比未改性的SBA-15，APTS改性SBA-15使其催化剂中Ni的负载量增加，并且非晶态合金组成中Ni的含量也增大，B的含量降低，有利于提高催化剂的活性。 |
| 英文摘要: |
| In this paper, with chemical reduction method Ni-B/SBA-15 amorphous alloy catalyst was prepared using APTS modified SBA-15 and unmodified SBA-15 as surpports. The catalytic activity of catalysts was characterized with thiophene hydrodesulfurization reaction. Ni-B/SBA-15-APTS which has higher catalytic activity was prepared. The complexation between –NH2 and Ni2 was benefit for the good dispersion of Ni-B alloy particles and more Ni2 could be reduced. ICP results also show that quantity of Ni supported in SBA-15-APTS was bigger than pure SBA-15, and the content of Ni in Ni-B amorphous alloy was increased. |
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