| 引用本文： |
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袁诗剑,童张法,赵祯霞,纪红兵.乙二醇辅助浸渍法制备Cu-NiO@Al2O3吗啉催化剂及其催化性能[J].广西科学,2016,23(3):261-265. [点击复制]
- YUAN Shijian,TONG Zhangfa,ZHAO Zhenxia,JI Hongbing.Preparation of Cu-NiO@Al2O3 Catalyst for Morpholine by Ethylene Glycol Assisted Impregnation Method and Its Property Investigation[J].Guangxi Sciences,2016,23(3):261-265. [点击复制]
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| 摘要: |
| [目的]开发催化活性高和热稳定性好的吗啉合成催化剂。[方法]以铜、镍为主要活性组分,活性氧化铝为载体,采用乙二醇辅助浸渍法制备具有高活性的Cu-NiO@Al2O3吗啉催化剂(IC-CN),再分别采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、程序升温还原(TPR)和N2-吸附脱附测试(BET)等手段对IC-CN和常规浸渍法制备的催化剂(IM-CN)的晶体结构、孔结构和氧化还原能力等性能进行表征。[结果]IC-CN在高空速条件下(0.7 mL·g-1·h-1)的吗啉收率高达93.1%,远高于IM-CN (56.2%)。高温热稳定性测试结果表明,经290℃反应3 h后(空速为0.4 mL·g-1·h-1),IC-CN仍能保持90.1%的吗啉收率,而IM-CN的吗啉收率仅为57.6%。[结论]乙二醇辅助浸渍法制备的催化剂活性要明显优于常规浸渍法所制备的催化剂。 |
| 关键词: 乙二醇 浸渍法 高温稳定性 吗啉合成 铜镍基催化 |
| DOI：10.13656/j.cnki.gxkx.20160713.013 |
| 投稿时间：2016-04-29修订日期：2016-05-11 |
| 基金项目:广西自然科学基金项目(2014GXNSFAA118061)和广西高校科学技术研究项目(2013YB024)资助。 |
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| Preparation of Cu-NiO@Al2O3 Catalyst for Morpholine by Ethylene Glycol Assisted Impregnation Method and Its Property Investigation |
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YUAN Shijian, TONG Zhangfa, ZHAO Zhenxia, JI Hongbing
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| (Guangxi Colleges and Universities Key Laboratory of New Chemical Application Technology in Resources, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, 530004, China) |
| Abstract: |
| [Objective] High catalytic-activity and temperature stability catalysts were synthesized for morpholine.[Methods] With copper and nickel as the main active ingredient,and activated alumina as a carrier, a high activity of Cu-NiO@Al2O3 catalyst for morpholine was synthesized through ethylene glycol-aided impregnation. The catalysts were characterized by X-ray diffraction (XRD),scanning electron microscope (SEM),temperature program reduction (TPR) and N2 adsorption-desorption (BET).Meanwhile,the performances of catalysts were investigated in the reaction of morpholine synthesis from diethylene glycol (DEG).[Results] The morpholine yeild of the catalysts prepared by ethylene glycol assisted impregnation method reached to 93.1%,which was higher than that of the catalysts prepared by general impregnation method,where the morpholine yeild was 56.2%.Thermal stability tests showed that the yield of morpholine obtained from the catalysts prepared by ethylene glycol assisted impregnation method still remained 90.1% while that obtained from the catalysts prepared by general impregnation method was only 57.6%.[Conclusion] The catalytic activity of the catalysts prepared by ethylene glycol assisted impregnation method is higher than that of the catalysts prepared by general impregnation method. |
| Key words: ethylene glycol impregnation method thermal stability morpholine synthesis Cu-Ni catalysts |
