Anti-carbon deposition performance of twinned HZSM-5 encapsulated Ru in the toluene alkylation with methanol

doi:10.1016/j.cjche.2023.03.007

IR > 石油化工学院

	Anti-carbon deposition performance of twinned HZSM-5 encapsulated Ru in the toluene alkylation with methanol
	Li, Guixian1,2 ; Tian, Tao 1; Li, Hanxu 1; Li, Jinlian 1; Shao, Tingna 1; Zhang, Qi1 ; Dong, Peng1,2
	2023-09
发表期刊	Chinese Journal of Chemical Engineering
ISSN	1004-9541
卷号	61 页码:1-8
摘要	Toluene methylation with methanol to produce para-xylene has been extensively and intensively studied. However, the methanol-to-hydrocarbons (MTH) side reaction in this reaction is difficult to be inhibited, which will cause a mass of carbon deposition and cover the catalyst surface, resulting in catalyst deactivation. Here, a dual-functional Ru@HZSM-5 catalyst with high para-selectivity and low carbon deposition was prepared by encapsulating Ru metal with HZSM-5. According to catalytic performance studies, the Ru@HZSM-5 catalyst produced xylene selectivity of 98% and para-xylene selectivity of 96%. Meanwhile, we find that carbon precursors (e.g. ethylene) were very little when Ru catalyst was used, but the results of HZSM-5 catalyst were completely opposite. Ru@HZSM-5 catalyst achieves a lower carbon deposition rate of only 6% of HZSM-5. The main possible reason for this is that the initial C–C bond between methanol and the olefin is difficult to form. © 2023 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd
关键词	Alkylation Carbon Catalyst deactivation Catalyst selectivity Deposition rates Ethylene Toluene Xylene Anti-carbon deposition Carbon deposition Encapsulated metal HZSM-5 catalyst Low carbon Para-xylene Performance Shape-selective catalysis Twinned HZSM-5 Xylene selectivity
DOI	10.1016/j.cjche.2023.03.007
收录类别	EI ; SCIE
语种	英语
资助项目	Hongliu Outstand-ing Young Talents Funding Program of Lanzhou University of Tech-nology [02/062214]
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
WOS记录号	WOS:001091609500001
出版者	Materials China
EI入藏号	20233414613198
EI主题词	Methanol
EI分类号	802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.1 Organic Compounds
原始文献类型	Journal article (JA)
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/166286
专题	石油化工学院法学院
通讯作者	Dong, Peng
作者单位	1.School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou; 730050, China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Li, Guixian,Tian, Tao,Li, Hanxu,et al. Anti-carbon deposition performance of twinned HZSM-5 encapsulated Ru in the toluene alkylation with methanol[J]. Chinese Journal of Chemical Engineering,2023,61:1-8.
APA	Li, Guixian.,Tian, Tao.,Li, Hanxu.,Li, Jinlian.,Shao, Tingna.,...&Dong, Peng.(2023).Anti-carbon deposition performance of twinned HZSM-5 encapsulated Ru in the toluene alkylation with methanol.Chinese Journal of Chemical Engineering,61,1-8.
MLA	Li, Guixian,et al."Anti-carbon deposition performance of twinned HZSM-5 encapsulated Ru in the toluene alkylation with methanol".Chinese Journal of Chemical Engineering 61(2023):1-8.