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Phosphorus modified hierarchically structured ZSM-5 zeolites for enhanced hydrothermal stability and intensified propylene production from 1-butene cracking
Lv, Jian1,2; Hua, Zile1; Ge, Tongguang1,2; Zhou, Jinlin1,2; Zhou, Jian3; Liu, Zhicheng3; Guo, Hangle1,2; Shi, Jianlin1
2017
发表期刊Microporous and Mesoporous Materials
ISSN13871811
卷号247页码:31-37
摘要Hierarchically structured ZSM-5 zeolites (HSZ) were synthesized by a mesoporogen-free procedure and subsequently modified with varied amounts of phosphorus (1–3 wt%) through impregnation of phosphoric acid solution. Materials characterization using various techniques showed that the hierarchical structures of HSZ were well preserved after phosphorus modification, and more interestingly, their hydrothermal stability were improved significantly and the main textural properties kept almost unchanged even after hydrothermally treated at 750 °C for 4 h in 100% steam. The strong acid sites of HSZ were found to be gradually eliminated by the phosphorus induced dealumination of tetrahedral framework aluminum (TFAL), however, weak acid sites remained almost intact. In the 1-butene cracking reactions, benefitting from the auxiliary mesopores and phosphorus modification, P-modified HSZ showed remarkably improved selectivity (∼52%) and yield (∼43%) of propylene as well as superior anti-deactivation ability. All these properties of P-modified HSZ made it a promising catalyst for industrial application. © 2017 Elsevier Inc.
DOI10.1016/j.micromeso.2017.03.037
EI入藏号20171403517779
EI主题词Phosphorus
EI分类号801.1 Chemistry, General - 804 Chemical Products Generally
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25516
专题中国科学院上海硅酸盐研究所
作者单位1.State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing; 100049, China;
3.Sinopec Shanghai Research Institute of Petrochemical Technology, 1658 Pudong North Road, Shanghai; 201208, China
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Lv, Jian,Hua, Zile,Ge, Tongguang,et al. Phosphorus modified hierarchically structured ZSM-5 zeolites for enhanced hydrothermal stability and intensified propylene production from 1-butene cracking[J]. Microporous and Mesoporous Materials,2017,247:31-37.
APA Lv, Jian.,Hua, Zile.,Ge, Tongguang.,Zhou, Jinlin.,Zhou, Jian.,...&Shi, Jianlin.(2017).Phosphorus modified hierarchically structured ZSM-5 zeolites for enhanced hydrothermal stability and intensified propylene production from 1-butene cracking.Microporous and Mesoporous Materials,247,31-37.
MLA Lv, Jian,et al."Phosphorus modified hierarchically structured ZSM-5 zeolites for enhanced hydrothermal stability and intensified propylene production from 1-butene cracking".Microporous and Mesoporous Materials 247(2017):31-37.
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