Home Journals Articles Updates About
CN
image
收藏切换
Effect of phosphorus and transition metal-modified ZSM-5 on the catalytic pyrolysis performance of C7 hydrocarbons with different structures
收藏切换
Kaijun HOU1, 2, Meijia LIU3, Zhifeng WANG2, Jinjun CAI2, Rong GUO2, Jinsen GAO1, *, Gang WANG1, *, An MA1, 4
Journal of Fuel Chemistry and Technology | 2026, 54(7) : 20250396-1300 - 20250396-1310
Less
收藏切换
Journal of Fuel Chemistry and Technology | 2026, 54(7): 20250396-1300-20250396-1310
Effect of phosphorus and transition metal-modified ZSM-5 on the catalytic pyrolysis performance of C7 hydrocarbons with different structures
Full
Kaijun HOU1, 2, Meijia LIU3, Zhifeng WANG2, Jinjun CAI2, Rong GUO2, Jinsen GAO1, *, Gang WANG1, *, An MA1, 4
Affiliations
  • 1College of Chemical Engineering and Environment, China University of Petroleum (Beijing), Beijing 102249, China
  • 2Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina, Lanzhou 730060, China
  • 3Petrochemical Research Institute, PetroChina, Beijing 102206, China
  • 4PetroChina Planning & Engineering Institute, Beijing 100083, China
Published: 2026-07-10 doi: 10.3724/2097-213X.2026.JFCT.0003
Outline
收藏切换

In this study, phosphorus and transition metal-modified ZSM-5 molecular sieves were prepared via the incipient wetness impregnation method and characterized by XRD, N2 adsorption-desorption, and pyridine-IR spectroscopy. The effects of modified zeolites on the catalytic pyrolysis of n-heptane, 3-methylhexane, and methylcyclohexane were systematically investigated, revealing the structure-activity relationship between acid properties and catalytic performance. The results indicate that phosphorus and transition metal modification can regulate the L/B acid ratio of ZSM-5, which significantly influences product distribution. An excessively high L/B acid ratio promotes hydrogen and coke formation, leading to pore blockage and reduced conversion, whereas an appropriate L/B acid ratio facilitates mild dehydrogenation, enhancing ethylene and propylene yields. The reactant conversion followed the order: n-heptane > 3-methylhexane > methylcyclohexane. Efficient conversion of 3-methylhexane and methylcyclohexane requires catalysts with high L acid mount, strong Brønsted acid amount, optimized L/B acid ratio, as well as high specific surface area and micropore specific surface area. This study provides critical insights for designing high-efficiency alkane pyrolysis catalysts.

3-methylhexane  /  methylcyclohexane  /  pyrolysis  /  molecular sieves  /  reaction  /  transition metal  /  modification  /  dehydrogenation
侯凯军, 刘美佳, 王智峰, 蔡进军, 郭蓉, 高金森, 王刚, 马安. 磷和过渡金属改性ZSM-5对不同结构C7烃催化裂解反应性能的影响. 燃料化学学报（中英文）, 2026 , 54 (7) : 20250396-1300 -20250396-1310 . DOI: 10.3724/2097-213X.2026.JFCT.0003
Kaijun HOU, Meijia LIU, Zhifeng WANG, Jinjun CAI, Rong GUO, Jinsen GAO, Gang WANG, An MA. Effect of phosphorus and transition metal-modified ZSM-5 on the catalytic pyrolysis performance of C7 hydrocarbons with different structures[J]. Journal of Fuel Chemistry and Technology, 2026 , 54 (7) : 20250396-1300 -20250396-1310 . DOI: 10.3724/2097-213X.2026.JFCT.0003
Appendix
Less
Year 2026 volume 54 Issue 7
174
80
Cite this Article
BibTeX
Article Info
doi: 10.3724/2097-213X.2026.JFCT.0003
  • Receive Date：2025-12-08
  • Online Date：2026-09-23
  • Published：2026-07-10
Article Data
Affiliations
History
  • Received：2025-12-08
  • Revised：2026-01-07
  • Accepted：2026-01-21
Affiliations
    1College of Chemical Engineering and Environment, China University of Petroleum (Beijing), Beijing 102249, China
    2Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina, Lanzhou 730060, China
    3Petrochemical Research Institute, PetroChina, Beijing 102206, China
    4PetroChina Planning & Engineering Institute, Beijing 100083, China
References
Share
https://castjournals.cast.org.cn/joweb/rlhxxb/EN/10.3724/2097-213X.2026.JFCT.0003
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House