| 朱优江,曹飞.铈修饰的硼铝酸铜催化邻乙基苯胺脱氢环化制备吲哚的催化性能[J].分子催化,2010,(5):0 |
| 铈修饰的硼铝酸铜催化邻乙基苯胺脱氢环化制备吲哚的催化性能 |
| Effect of Cerium Promoter on Copper Aluminum Borate for Dehydrocyclization of o-Ethylaniline to Indole |
| 投稿时间：2010-01-15 修订日期：2010-08-08 |
| DOI： |
| 中文关键词: 吲哚 硼铝酸铜 铈助剂 抗还原性 |
| 英文关键词:Indole Copper aluminum borate Cerium promoter Anti-reductive |
| 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: |
| 摘要：硼铝酸铜催化剂（CuAB）在吲哚制备过程中存在易积碳和还原的缺点，本文通过添加铈助剂来改善该催化剂的抗还原性能。通过BET、XRD、H2-TPR、XPS表征表明，铈助剂的添加对催化剂的主体晶相没有改变，但显著增加了增强了复合氧化物的抗还原能力，降低了催化剂的失活速度。采用2%Ce修饰量、空速为0.75 h-1、水油比（摩尔比）为6∶1的条件下，较未添加助剂改性的催化剂转化率提高11.81%，选择性提高6.47%。 |
| 英文摘要: |
| Abstract：In the dehydrogenation of o-ethylaniline to indole, copper aluminum borate catalyst was easy to be deactivated by the carbon deposition and reduction of CuO. Cerium promoter was added to improve the reduction-resistant of this catalyst. Through the characterization of BET, XRD, H2-TPR, XPS, it was found that the addition of cerium promoters did not change the structure of the catalyst, but significantly increased the capability of the anti-reductive. In the condition of which WHSV was 075 h-1 and mole ratio of water and o-ethylaniline was 6:1, the conversion of o-ethylaniline and selection of indole were about 76.41 % and 77.27 %on the copper aluminum borate with 2%Ce, while on the catalyst without Ce, the result were 64.6% and 70.8%. |
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