Construction of hierarchical ZSM-5 molecular sieves by quaternary ammonium salt-assisted acid hydrolysis of a silicon source to enhance the catalytic pyrolysis of <italic style="font-style: italic">n</italic>-pentane

Luan Mengkun; Su Wenli; Guo Huijuan; Fan Yu

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Construction of hierarchical ZSM-5 molecular sieves by quaternary ammonium salt-assisted acid hydrolysis of a silicon source to enhance the catalytic pyrolysis of n-pentane

Updated：2026-05-14

- Construction of hierarchical ZSM-5 molecular sieves by quaternary ammonium salt-assisted acid hydrolysis of a silicon source to enhance the catalytic pyrolysis of n-pentane
- Chinese Journal of Chemical Engineering Vol. 90, Issue 2, Pages: 86-93(2026)
- Affiliations：
  
  State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
  College of Chemistry and Life Science, Chengdu Normal University, Chengdu 611130, China
- Author bio：
  
  Corresponding author. E-mail address: fanyu@cup.edu.cn (Y. Fan).
- Funds：
- DOI：
  CLC：
- Received：26 July 2025，
  
  Revised：2025-09-29，
  
  Accepted：29 September 2025，
  
  Online First：11 December 2025，
  
  Published：2026-02
- Accepted：
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Luan Mengkun, Su Wenli, Guo Huijuan, et al. Construction of hierarchical ZSM-5 molecular sieves by quaternary ammonium salt-assisted acid hydrolysis of a silicon source to enhance the catalytic pyrolysis of n-pentane[J]. Chinese Journal of Chemical Engineering, 2026, 90(2): 86-93.
DOI：

Luan Mengkun, Su Wenli, Guo Huijuan, et al. Construction of hierarchical ZSM-5 molecular sieves by quaternary ammonium salt-assisted acid hydrolysis of a silicon source to enhance the catalytic pyrolysis of n-pentane[J]. Chinese Journal of Chemical Engineering, 2026, 90(2): 86-93. DOI：

摘要

Abstract

ZSM-5 molecular sieves are potential catalysts for the catalytic pyrolysis of light naphtha. Nevertheless

traditional ZSM-5 is constrained by its low yield of light olefins and poor stability

limiting its use as a pyrolysis catalyst. In this work

a method involving quaternary ammonium salt (QAS)-assisted acid hydrolysis of silicon sources was developed to construct hierarchical and highly crystalline ZSM-5 molecular sieves for the efficient catalytic pyrolysis of

-pentane. The mesoporous sizes in hierarchical ZSM-5 were controlled by varying the

alkyl chain length of the QASs. Diffusional measurements revealed that the diffusion time constant of

-pentane increased with increasing mesoporous size inZSM-5. The

-pentane pyrolysis tests revealed that a suitable mesoporous size (10.8 nm) facilitated the

-pentane monomolecular cracking pathway while the hydrogen transfer reactions were inhibited. Among the series of ZSM-5 molecular sieves

the D-ZH5 catalyst synthesized by dodecyl trimethyl ammonium bromide (DTAB)-assisted acid hydrolysis of ethyl orthosilicate (TEOS) achieved the highest yields of light olefins (41.69% (mass) for ethylene and propylene) and the lowest deactivation rate (0.13%·h

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J.L. Zhu, S.Y. Yan, G.H. Xu, X.D. Zhu, F. Yang, Fabrication of sheet-like HZSM-5 zeolites with various SiO 2 /Al 2 O 3 and process optimization in hexane catalytic cracking, J. Solid State Chem. 318 (2023) 123772.

X.Y. Zhang, Y. Li, J.R. Lu, Y.H. Hu, J.F. Chen, D.L. Ren, Z. Li, Q.C. Zhang, H. Yan, X. B. Chen, Y.B. Liu, C.H. Yang, Insight into catalytic cracking pathways of n -pentane over bifunctional catalysts to produce light olefins, AIChE J. 70 (2) (2024) e18266.

J.L. Zhu, S.Y. Yan, Y. Qian, X.D. Zhu, F. Yang, Fabrication of fluffy-ball like ZSM-5 zeolite and its ap plication in hexane catalytic cracking, Microporous Mesoporous Mater. 351 (2023) 112465.

X.Y. He, Y.J. Tian, C.Z. Qiao, G.Z. Liu, Acid-driven architecture of hierarchical porous ZSM—5 with high acidic quantity and its catalytic cracking performance, Chem. Eng. J. 473 (2023) 145334.

C.G. Song, Z.Z. Ma, X. Hou, H. Zhou, H.M. Qiao, C.C. Tian, L. Yin, B.T. Jin, E.X. Yuan, HZSM-5 zeolites undergoing the high-temperature process for boosting the bimolecular reaction in n -heptane catalytic cracking, Chin. J. Chem. Eng. 66 (2024) 136—144.

Y.J. Tian, X.Y. He, X.Z. Chen, C.Z. Qiao, H.Y. Wang, Z.H. Diao, G.Z. Liu, Transition metal modified hierarchical ZSM-5 nanosheet for catalytic cracking of n -pentane to light olefins, Fuel 363 (2024) 130902.

L.H. Chen, M.H. Sun, Z. Wang, W.M. Yang, Z.K. Xie, B.L. Su, Hierarchically structured zeolites: from design to application, Chem. Rev. 120 (20) (2020) 11194—11294.

Z.J. Wang, R.X. Zhang, J.G. Wang, Z.W. Yu, Y.J. Xiang, L.J. Kong, H.Q. Liu, A.Z. Ma, Hierarchical zeolites obtained by alkaline treatment for enhanced n -pentane catalytic cracking, Fuel 313 (2022) 122669.

K. Na, G.A. Somorjai, Hierarchically nanoporous zeolites and their heterogeneous catalysis: current status and future perspectives, Catal. Lett. 145 (1) (2015) 193—213.

H. M. Luan, Q.M. Wu, J.P. Wu, X.J. Meng, F.S. Xiao, Templates for the synthesis of zeolites, Chin. J. Struct. Chem. 43(4)(2024)100252.

D. Kerstens, B. Smeyers, J. Van Waeyenberg, Q. Zhang, J.H. Yu, B.F. Sels, State of the art and perspectives of hierarchical zeolites: practical overview of synthesis methods and use in catalysis, Adv. Mater. 32 (44) (2020) e2004690.

Y. Hu, X. Yang, H. Tian, Research advance in synthesis hierarchical ZSM-5 with soft templates, Ind. Catal. 28(1) (2020)1—10. (in Chinese)

C.J. Brinker, Hydrolysis and condensation of silicates: effects on structure, J. Non-Cryst. Solids 100(1—3) (1988)31—50.

M.T. Harris, R.R. Brunson, C.H. Byers, The base-catalyzed hydrolysis and condensation reactions of dilute and concentrated TEOS solutions, J. Non-Cryst. Solids 121(1—3) (1990)397—403.

L. Ye, W.J. Yang, J. Fan, X. Pu, X. Han, X.L. Qin, M.X. Ma, Z.Y. Huang, T.T. Wang, K.K. Zhu, Y.H. Xu, J.C. Liu, The influence of pore-architecture over n -heptane cracking usingMFI, *BEAand MSE zeolite catalysts: multipore versus hierarchical porosity, Chem. Eng. J. 482 (2024) 148705.

Z.H. Zhou, X.W. Wang, J.J. Li, Y. Gao, R. Yu, R.L. Jiang, One-pot synthesis of phosphorus-modified ZSM-5 zeolite by solid-state method and its MTO catalytic performance, Chemistry 29(14)(2023)e202203095.

G. Xiong, F.F. Meng, J.X. Liu, L.P. Liu, L.P. Zhao, Rapid hydrothermal synthesis of hierarchical ZSM-5/beta composite zeolites, RSC Adv. 11 (35) (2021) 21235—21247.

J. Sanchez, A. McCormick, Kinetic and thermodynamic study of the hydrolysis of silicon alkoxides in acidic alcohol solutions, J. Phys. Chem. 96 (22) (1992) 8973—8979.

F.F. Cao, Y.J. Wu, J. Gu, J. Wang, Hydrothermal synthesis of nanocrystalline zeolite Beta by acid-catalyzed hydrolysis of teraethylorthosilicate, Mater. Chem. Phys. 130(1—2) (2011)727—732.

M. Brunsteiner, A.G. Jones, F. Pratola, S.L. Price, S.J.R. Simons, Toward a molecular understanding of crystal agglomeration, Cryst. Growth Des. 5 (1) (2005) 3—16.

S.Y. Liu, Y.J. Tian, X.Y. He, Y. Liu, C.Z. Qiao, G.Z. Liu, Moderation of textural properties in hierarchical ZSM-5 to enhance the yield of olefins in catalytic cracking of hydrocarbons, Catal. Sci. Technol. 13 (4) (2023) 1119—1127.

S.J. Gregg, K.S.W. Sing, H.W. Salzberg, Adsorption surface area and porosity, J. Electrochem. Soc. 114(11)(1967)279C.

N. Danilina, F. Krumeich, J.A. van Bokhoven, Hierarchical SAPO-5 catalysts active in acid-catalyzed reactions, J. Catal. 272(1)(2010)37—43.

L.Q. Meng, B. Mezari, M.G. Goesten, E.J.M. He nsen, One-step synthesis of hierarchical ZSM-5 using cetyltrimethylammonium as mesoporogen and structure-directing agent, Chem. Mater. 29(9)(2017)4091—4096.

C.A. Emeis, Determination of integrated molar extinction coefficients for infrared absorption bands of pyridine adsorbed on solid acid catalysts, J. Catal. 141(2) (1993)347—354.

T. Blasco, C.C. A, A. Corma, W.J. Murphy, J. Agúndez-Rodríguez, J. Pérez-Pariente, Changing the Si distribution in SAPO-11 by synthesis with surfactants improves the hydroisomerization/dewaxing properties, J. Catal. 242 (1) (2006) 153—161.

L. Guo, X.J. Bao, Y. Fan, G. Shi, H.Y. Liu, D.J. Bai, Impact of cationic surfactant chain length during SAPO-11 molecular sieve synthesis on structure, acidity, and n -octane isomerization to di-methyl hexanes, J. Catal. 294 (2012) 161—170.

X. Xiao, B. Sun, P. Wang, X.Q. Fan, L. Kong, Z.A. Xie, B.N. Liu, Z. Zhao, Tuning the density of Brønsted acid sites on mesoporous ZSM-5 zeolite for enhancing light olefins selectivity in the catalytic cracking of n -octane, Microporous Mesoporous Mater. 330(2022)111621.

J. Wang, J.W. Shan, Y.J. Tian, T.T. Zhu, H.N. Duan, X.Y. He, C.Z. Qiao, G.Z. Liu, Catalytic cracking of n -heptane over Fe modified HZSM-5 nanosheet to produce light olefins, Fuel 306(2021)121725.

T.T. Zhu, H.R. Liang, B.F. Zhang, Y.J. Tian, G.Z. Liu, Controllably tailoring external surface sites of nanosheet HZSM-5 for maximizi ng light olefins in catalytic cracking of n -decane, Chin. J. Chem. Eng. 38(2021)276—285.

S. Kotrel, H. Knözinger, B.C. Gates, The Haag—Dessau mechanism of protolytic cracking of alkanes, Microporous Mesoporous Mater. 35(2000) 11—20.

X.X. Zhang, D.G. Cheng, F.Q. Chen, X.L. Zhan, The role of external acidity of hierarchical ZSM-5 zeolites in n -heptane catalytic cracking, ChemCatChem 10 (12)(2018)2655—2663.

A. Corma, V. Fornés, J. Martınez-Triguero, S.B. Pergher, Delaminated zeolites:combining the benefits of zeolites and mesoporous materials for catalytic uses, J. Catal. 186(1) (1999)57—63.

M. Qamar, M.I. Ahmed, M. Qamaruddin, M. Asif, M. Sanhoob, O. Muraza, M.Y. Khan, A mesopore-dependent catalytic cracking of n -hexane over mesoporous nanostructured ZSM-5, J. Nanosci. Nanotechnol. 18 (8) (2018) 5711—5720.

H. Konno, T. Tago, Y. Nakasaka, R. Ohnaka, J.I. Nishimura, T. Masuda, Effectiveness of nano-scale ZSM-5 zeolite and its deactivation mechanism on catalytic cracking of representative hydrocarbons of naphtha, Microporous Mesoporous Mater. 175 (2013) 25—33.

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Construction of hierarchical ZSM-5 molecular sieves by quaternary ammonium salt-assisted acid hydrolysis of a silicon source to enhance the catalytic pyrolysis of n-pentane

DOI：

摘要

Abstract

关键词

Keywords

references