| Y-Mg-Al-F催化剂用于1,1,1,2-四氟乙烷裂解制备三氟乙烯 |
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| 引用本文： | 赵 洋 蔚辰刚 周 强 吴周安 王树华 罗孟飞. Y-Mg-Al-F催化剂用于1,1,1,2-四氟乙烷裂解制备三氟乙烯[J]. 应用化学, 2014, 31(4): 400-405. DOI: 10.3724/SP.J.1095.2014.30338 |
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| 作者姓名： | 赵 洋 蔚辰刚 周 强 吴周安 王树华 罗孟飞 |
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| 作者单位： | (1.浙江师范大学物理化学研究所 浙江省固体表面反应化学重点实验室 金华 321004；2.巨化集团技术中心 衢州 324004) |
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| 基金项目： | 教育部创新团队发展计划项目(IRT0980)~~ |
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| 摘 要： | 采用沉积沉淀法制备了Y-Mg-Al-F催化剂，应用XRD、NH3-TPD和Raman光谱等技术手段对催化剂进行表征，并与AlF3催化剂作比较，且将催化剂应用于四氟乙烷(HFC-134a)裂解制备三氟乙烯反应中。 结果表明，1100 ℃焙烧的Y-Mg-Al-F催化剂具有较高的活性和反应稳定性。 反应温度400 ℃时，四氟乙烷转化率大于25%。 催化剂表面酸性和积碳是影响催化剂活性和稳定性的主要因素。
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| 关 键 词： | 四氟乙烷 催化裂解 三氟乙烯 沉积沉淀法 Y-Mg-Al |
| 收稿时间： | 2013-07-08 |
| 修稿时间： | 2013-09-05 |
Performance of Y-Mg-Al-F Catalysts for Catalytic Pyrolysis of 1,1,1,2-Tetrafluoroethane to Trifluoroethylene |
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| ZHAO Yang,YU Chengang,ZHOU Qiang,WU Zhouan,WANG Shuhua,LUO Mengfe. Performance of Y-Mg-Al-F Catalysts for Catalytic Pyrolysis of 1,1,1,2-Tetrafluoroethane to Trifluoroethylene[J]. Chinese Journal of Applied Chemistry, 2014, 31(4): 400-405. DOI: 10.3724/SP.J.1095.2014.30338 |
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| Authors: | ZHAO Yang YU Chengang ZHOU Qiang WU Zhouan WANG Shuhua LUO Mengfe |
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| Affiliation: | (1.Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces,Institute of ;Physical Chemistry,Zhejiang Normal University,Jinhua 321004,China;2.Technology Center of Juhua Group,Quzhou 324004,China) |
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| Abstract: | A series of Y-Mg-Al-F catalysts was prepared by the deposition-precipitation method, and characterized by X-ray diffraction(XRD), NH3-TPD(temperature-programmed desorption) and Raman spectroscopy. The catalysts were used in catalytic pyrolysis of 1,1,1,2-tetrafluoroethane(HFC-134a) to trifluoroethylene(TrFE). Their catalytic performances were compared with AlF3 catalyst. The results show that the Y-Mg-Al-F catalyst calcined at 1100 ℃ exhibits higher activity and stability than others. The conversion of HFC-134a is higher than 25% at a reaction temperature of 400 ℃. The surface acidity and carbon deposits on the catalyst surface have main effects on the catalytic activity and stability of catalysts. |
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| Keywords: | tetrafluoroethane catalysis pyrolysis trifluoroethylene deposition-precipitation Y-Mg-Al |
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