Stable and efficient aromatic yield from methanol over alkali treated hierarchical Zn-containing HZSM-5 zeolites

doi:10.1016/j.micromeso.2016.05.021

	Stable and efficient aromatic yield from methanol over alkali treated hierarchical Zn-containing HZSM-5 zeolites
	Yang, Chengguang 1; Qiu, Minghuang 1; Hu, Shengwei 1; Chen, Xinqing 1; Zeng, Gaofeng 1; Liu, Ziyu 1; Sun, Yuhan1,2
	2016-09
发表期刊	MICROPOROUS AND MESOPOROUS MATERIALS (IF:4.8[JCR-2023],4.7[5-Year])
ISSN	1387-1811
卷号	231 页码:110-116
发表状态	已发表
DOI	10.1016/j.micromeso.2016.05.021
摘要	Fast deactivation of catalyst is the main problem in methanol-to-aromatics (MTA) process. Herein, Zn-containing HZSM-5 zeolites with hierarchical pores (H-Zn/HZSM-5) were prepared by treating directly synthesized Zn/HZSM-5 with NaOH solution. The changes in crystallinity, acidity and textural properties of Zn/HZSM-5 before and after alkali treatment were characterized by X-ray diffraction, NH3-TPD, Al-27 MAS-NMR, N-2 physisorption, X-ray fluorescence and TEM techniques. MTA reaction under the operating conditions of T = 400 degrees C and WHSV = 2.5 h(-1) showed that the aromatic yield was improved from 41.4% for HZSM-5 to 55.3%. Furthermore, H-Zn/HZSM-5 exhibited a high initial space time yield of 0.62 g gcat(-1) h(-1) and a long lifetime up to 120 h. These results could be ascribed to the hierarchical pores and the providential acidity, which enhanced the adsorption and diffusion of intermediates/products during the reaction. (C) 2016 Elsevier Inc. All rights reserved.
关键词	Zn/HZSM-5 Alkali treatment Hierarchical pores MTA Lifetime
收录类别	SCI ; EI
语种	英语
资助项目	Science and Technology Commission of Shanghai Municipality[14DZ1207602] ; Science and Technology Commission of Shanghai Municipality[14DZ1203700]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000379705800012
出版者	ELSEVIER SCIENCE BV
EI入藏号	20162202452976
EI主题词	Aromatic compounds ; Aromatization ; Methanol ; Reaction intermediates ; X ray diffraction ; Zeolites
EI分类号	Zinc and Alloys:546.3 ; Chemical Reactions:802.2 ; Chemical Products Generally:804
WOS关键词	TO-HYDROCARBONS ; ZN/HZSM-5 CATALYST ; CONVERSION ; METHYLATION ; PERFORMANCE ; SELECTIVITY ; CLUSTERS ; BENZENE
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1741
专题	物质科学与技术学院_特聘教授组_孙予罕组
通讯作者	Liu, Ziyu; Sun, Yuhan
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Yang, Chengguang,Qiu, Minghuang,Hu, Shengwei,et al. Stable and efficient aromatic yield from methanol over alkali treated hierarchical Zn-containing HZSM-5 zeolites[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2016,231:110-116.
APA	Yang, Chengguang.,Qiu, Minghuang.,Hu, Shengwei.,Chen, Xinqing.,Zeng, Gaofeng.,...&Sun, Yuhan.(2016).Stable and efficient aromatic yield from methanol over alkali treated hierarchical Zn-containing HZSM-5 zeolites.MICROPOROUS AND MESOPOROUS MATERIALS,231,110-116.
MLA	Yang, Chengguang,et al."Stable and efficient aromatic yield from methanol over alkali treated hierarchical Zn-containing HZSM-5 zeolites".MICROPOROUS AND MESOPOROUS MATERIALS 231(2016):110-116.