Improved Catalytic Performance for 1-Butene Epoxidation over Titanium Silicalite-1 Extrudates by Using SBA-15 or Carborundum as Additives
发布时间：2019-03-12
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- 论文类型：
- 期刊论文
- 发表时间：
- 2017-07-05
- 发表刊物：
- INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
- 收录刊物：
- Scopus、EI、SCIE
- 文献类型：
- J
- 卷号：
- 56
- 期号：
- 26
- 页面范围：
- 7462-7467
- ISSN号：
- 0888-5885
- 摘要：
- A nanosized titanium silicalite-1 (TS-1) was synthesized in a tetrapropylammonium hydroxide hydrothermal system and was then extruded with silica and different additives (carborundum and SBA-1.5). The obtained TS-1 extrudates were characterized and evaluated in the epoxidation of 1-butene in a fixed-bed reactor. The catalytic performances are enhanced when carborundum and SBA-15 are introduced to the shaped catalysts, especially when using carborundum. The reasons for the deactivation of TS-1 and improvement of catalytic performance were studied. The mesopores in SBA-15 improve the diffusion property of substrates, leading to a higher catalytic activity. The high heat conductivity property of carborundum removes the exothermal rapidly, eliminating the side reactions and resulting in a higher stability.
- 第一作者
- Zuo, Yi
- 合写作者
- Song, Chunshan,Guo, Xinwen,Liu, Min,Ma, Mengtong
- 通讯作者
- Guo, XW (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, PSU DUT Joint Ctr Energy Res, Dept Catalysis Chem & Engn, Dalian 116024, Peoples R China.