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| 介孔Pt/SAPO-11的制备工艺优化及其催化油酸脱羧制备航空煤油性能评价 |
| Optimization of preparation of mesoporous Pt/SAPO-11 and its performance evaluation for the production of aviation kerosene by decarboxylation of oleic acid |
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| DOI： |
| 中文关键词: 介孔Pt/SAPO-11 晶化温度 晶化时间 煅烧温度 C8~C17烷烃 |
| 英文关键词:mesoporous Pt/SAPO-11 crystallization temperature crystallization time calcination temperature C8-C17 alkanes |
| 基金项目: |
| Author Name | Affiliation | | LIU Xiaolong1, MA Jingye1, YUAN Hong1,2,3 | 1.Chemical Science and Engineering College, North Minzu University, Yinchuan 750021, China
2.National Civil Affairs Commission Key Laboratory of Chemical Technology, Yinchuan 750021, China
3.Ningxia Key Laboratory of Solar Energy Chemical Conversion Technology, Yinchuan 750021, China |
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| 中文摘要: |
| 为提高SAPO-11分子筛在催化油酸脱羧制备航空煤油主要成分C8~C17烷烃的催化反应效果，以聚环氧乙烷-聚环氧丙烷-聚环氧乙烷三嵌段共聚物(P123)和十二烷基三甲基溴化铵(DTAB)为介孔双模板剂，采用原位合成法制备了介孔Pt/SAPO-11分子筛催化剂，探究不同晶化温度、晶化时间和煅烧温度对介孔Pt/SAPO-11结晶度、孔结构、形貌特征的影响，并考察其催化油酸脱羧制备C8~C17烷烃效果。结果表明：在晶化温度190℃、晶化时间36 h、煅烧温度650℃、煅烧时间5 h时，合成的介孔Pt/SAPO-11具有较大的比表面积、较高结晶度、较合适孔径和较好的形貌特征；在油酸脱羧制备C8~C17烷烃的反应中，在反应温度340℃、剂油比1∶10、反应时间6 h 时，C8~C17烷烃收率可达78.3%。 |
| 英文摘要: |
| In order to improve the catalytic reaction effect of SAPO-11 molecular sieve in catalyzing the decarboxylation of oleic acid to prepare C8-C17 alkanes, using polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer (P123), and dodecyl trimethyl ammonium bromide (DTAB) as mesoporous double template agents, the mesoporous Pt/SAPO-11 molecular sieve catalyst was prepared by in-situ synthesis method,and the effects of different crystallization temperature, crystallization time and calcination temperature on the crystallinity, pore structure and morphology of mesoporous Pt/SAPO-11 were studied. Also it was uesed for the preparation of C8-C17 alkanes by decarboxylation of oleic acid. The results showed that when the crystallization temperature was 190℃, the crystallization time was 36 h, the calcination temperature was 650℃, and the calcination time was 5 h, the synthesized mesoporous Pt/SAPO-11 had a larger specific surface area, higher crystallinity, more suitable bore size and better morphological characteristics. In the reaction of oleic acid decarboxylation to prepare C8-C17 alkanes, when the reaction temperature was 340℃, the catalyst-oil ratio was 1∶10, and the reaction time was 6 h, the yield of C8-C17 alkanes could reach 78.3%. |
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