| 汽油烃类烷基化分子筛催化剂研究FCC-C4 |
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| 引用本文： | 王宪梅,段艳,张舜光,侯凯湖.汽油烃类烷基化分子筛催化剂研究FCC-C4[J].河北工业大学学报,2012,41(2):41-45. |
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| 作者姓名： | 王宪梅 段艳 张舜光 侯凯湖 |
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| 作者单位： | 河北工业大学 化工学院,绿色化工与高效节能河北省重点实验室,天津300130 |
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| 摘 要： | 采用机械混捏法制备了Al2O3-分子筛烷基化催化剂,对催化剂进行了NH3-TPD、XRD、吡啶吸附红外光谱等表征.以正己烯、正庚烷与混合C4烃类的混合物为模拟原料,在连续高压固定床微反装置上评价了催化剂的活性,考察了Al2O3-Hβ分子筛催化剂的配比,及催化剂的磷(P)、Mg、柠檬酸(CA)改性对其烷基化性能的影响.结果表明:质量比为3∶7左右的Al2O3-Hβ为较适宜的烷基化催化剂;柠檬酸改性显著改善了催化剂的稳定性,而P、Mg改性则未能改善催化剂的稳定性.
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| 关 键 词： | Al2O3 Hβ 烷基化 混合C4 FCC汽油 柠檬酸改性 |
Study on the catalysts for alkylation of FCC gasoline with C4 hydrocarbons |
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| WANG Xian-mei
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DUAN Yan
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ZHANG Shun-guang
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HOU Kai-hu.Study on the catalysts for alkylation of FCC gasoline with C4 hydrocarbons[J].Journal of Hebei University of Technology,2012,41(2):41-45. |
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| Authors: | WANG Xian-mei DUAN Yan ZHANG Shun-guang HOU Kai-hu |
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| Affiliation: | (Hebei Provincial Key Lab of Green Chemical Technology and High Efficient Energy Saving,School of Chemical Engneering,Hebei University of Technology,Tianjin 300130,China) |
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| Abstract: | The Al2O-zeolite alkylation catalysts were prepared by the mechanical kneading method,and were characterized by using NH3-TPD 、XRD and Py-IR spectrum techniques.Using a mixture of n-hexene,n-heptane,and mixed C4-hydrocarbons as modeling feed,the effects of Al2O/Hβ ratio,the modification with phosphorus(P),Mg,or citric acid(CA) on the alkylation activity of the catalysts were investigated emphatically.The results show that the suitable mass ratio of Al2O/Hβ is about 3∶7,citric acid modification can improve significantly the stability of the catalysts,while P,Mg modification has no positive effect on the stability of the catalysts. |
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| Keywords: | Al2O-Hβ alkylation C4 hydrocarbons FCC gasoline citric acid modification |
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