Preparation of HZSM-5 catalysts with different ratios of structure directing agents and their effects on the decomposition of exo-tetrahydrodicyclopentadiene under supercritical conditions and coke formation

Tae Ho Lee; Hyunchul Jeong; Byung Hun Jeong; Jung Sik Han; Min Yeong Gim; Do Heui Kim; Sung Hyun Kim; Ki Bong Lee

doi:10.1016/j.apsusc.2020.145398

Preparation of HZSM-5 catalysts with different ratios of structure directing agents and their effects on the decomposition of exo-tetrahydrodicyclopentadiene under supercritical conditions and coke formation

Tae Ho Lee, Hyunchul Jeong, Byung Hun Jeong, Jung Sik Han, Min Yeong Gim, Do Heui Kim, Sung Hyun Kim, Ki Bong Lee

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Zeolite catalysts (ZSM-5) were synthesized using different ratios of structure directing agents (SDA) and Si/Al, and the synthesized ZSM-5 samples were used in the endothermic decomposition reaction of exo-tetrahydrodicyclopentadiene (exo-THDCP). The ZSM-5 synthesized with a 6.0:100 SDA/SiO₂ ratio and Si/Al ratio of 20 (S20/P6.0) showed higher mesoporosity than those of the other synthesized and commercial ZSM-5 catalysts. The decomposition reaction of exo-THDCP using the S20/P6.0 catalyst yielded the highest conversion of 58.4% after 65 min, whereas the commercial catalyst rapidly became deactivated and exhibited only 31.2% conversion, which was the same conversion obtained without the catalyst. The coke analysis results indicated that the ratio of mesopore to micropore volume of the catalyst was a major factor in determining the amount of internal and external coke produced in the catalyst. Moreover, the mesopore/micropore volume ratio affected the composition of soluble coke.

Original language	English
Article number	145398
Journal	Applied Surface Science
Volume	511
DOIs	https://doi.org/10.1016/j.apsusc.2020.145398
Publication status	Published - 2020 May 1

Keywords

Catalytic endothermic reaction
Coke formation
Deactivation
Exo-Tetrahydrodicyclopentadiene
Structure directing agent
Zeolite catalyst

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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Lee, T. H., Jeong, H., Jeong, B. H., Han, J. S., Gim, M. Y., Kim, D. H., Kim, S. H., & Lee, K. B. (2020). Preparation of HZSM-5 catalysts with different ratios of structure directing agents and their effects on the decomposition of exo-tetrahydrodicyclopentadiene under supercritical conditions and coke formation. Applied Surface Science, 511, [145398]. https://doi.org/10.1016/j.apsusc.2020.145398

Preparation of HZSM-5 catalysts with different ratios of structure directing agents and their effects on the decomposition of exo-tetrahydrodicyclopentadiene under supercritical conditions and coke formation. / Lee, Tae Ho; Jeong, Hyunchul; Jeong, Byung Hun et al.

In: Applied Surface Science, Vol. 511, 145398, 01.05.2020.

Research output: Contribution to journal › Article › peer-review

Lee, TH, Jeong, H, Jeong, BH, Han, JS, Gim, MY, Kim, DH, Kim, SH & Lee, KB 2020, 'Preparation of HZSM-5 catalysts with different ratios of structure directing agents and their effects on the decomposition of exo-tetrahydrodicyclopentadiene under supercritical conditions and coke formation', Applied Surface Science, vol. 511, 145398. https://doi.org/10.1016/j.apsusc.2020.145398

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title = "Preparation of HZSM-5 catalysts with different ratios of structure directing agents and their effects on the decomposition of exo-tetrahydrodicyclopentadiene under supercritical conditions and coke formation",

abstract = "Zeolite catalysts (ZSM-5) were synthesized using different ratios of structure directing agents (SDA) and Si/Al, and the synthesized ZSM-5 samples were used in the endothermic decomposition reaction of exo-tetrahydrodicyclopentadiene (exo-THDCP). The ZSM-5 synthesized with a 6.0:100 SDA/SiO2 ratio and Si/Al ratio of 20 (S20/P6.0) showed higher mesoporosity than those of the other synthesized and commercial ZSM-5 catalysts. The decomposition reaction of exo-THDCP using the S20/P6.0 catalyst yielded the highest conversion of 58.4% after 65 min, whereas the commercial catalyst rapidly became deactivated and exhibited only 31.2% conversion, which was the same conversion obtained without the catalyst. The coke analysis results indicated that the ratio of mesopore to micropore volume of the catalyst was a major factor in determining the amount of internal and external coke produced in the catalyst. Moreover, the mesopore/micropore volume ratio affected the composition of soluble coke.",

keywords = "Catalytic endothermic reaction, Coke formation, Deactivation, Exo-Tetrahydrodicyclopentadiene, Structure directing agent, Zeolite catalyst",

author = "Lee, {Tae Ho} and Hyunchul Jeong and Jeong, {Byung Hun} and Han, {Jung Sik} and Gim, {Min Yeong} and Kim, {Do Heui} and Kim, {Sung Hyun} and Lee, {Ki Bong}",

note = "Funding Information: This work was supported by the Super Ultra Low Energy and Emission Vehicle Engineering Research Center ( NRF-2016R1A5A1009592 ) of the National Research Foundation of Korea (NRF) funded by the Korean government Ministry of Science and ICT, the Korea Institute of Energy Research ( B7-2424 ), and “Energy Technology Development Business” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government Ministry of Trade, Industry & Energy (No. 20182020201260 ). Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = may,

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doi = "10.1016/j.apsusc.2020.145398",

language = "English",

volume = "511",

journal = "Applied Surface Science",

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T1 - Preparation of HZSM-5 catalysts with different ratios of structure directing agents and their effects on the decomposition of exo-tetrahydrodicyclopentadiene under supercritical conditions and coke formation

AU - Lee, Tae Ho

AU - Jeong, Hyunchul

AU - Jeong, Byung Hun

AU - Han, Jung Sik

AU - Gim, Min Yeong

AU - Kim, Do Heui

AU - Kim, Sung Hyun

AU - Lee, Ki Bong

N1 - Funding Information: This work was supported by the Super Ultra Low Energy and Emission Vehicle Engineering Research Center ( NRF-2016R1A5A1009592 ) of the National Research Foundation of Korea (NRF) funded by the Korean government Ministry of Science and ICT, the Korea Institute of Energy Research ( B7-2424 ), and “Energy Technology Development Business” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government Ministry of Trade, Industry & Energy (No. 20182020201260 ). Publisher Copyright: © 2020 Elsevier B.V.

PY - 2020/5/1

Y1 - 2020/5/1

N2 - Zeolite catalysts (ZSM-5) were synthesized using different ratios of structure directing agents (SDA) and Si/Al, and the synthesized ZSM-5 samples were used in the endothermic decomposition reaction of exo-tetrahydrodicyclopentadiene (exo-THDCP). The ZSM-5 synthesized with a 6.0:100 SDA/SiO2 ratio and Si/Al ratio of 20 (S20/P6.0) showed higher mesoporosity than those of the other synthesized and commercial ZSM-5 catalysts. The decomposition reaction of exo-THDCP using the S20/P6.0 catalyst yielded the highest conversion of 58.4% after 65 min, whereas the commercial catalyst rapidly became deactivated and exhibited only 31.2% conversion, which was the same conversion obtained without the catalyst. The coke analysis results indicated that the ratio of mesopore to micropore volume of the catalyst was a major factor in determining the amount of internal and external coke produced in the catalyst. Moreover, the mesopore/micropore volume ratio affected the composition of soluble coke.

AB - Zeolite catalysts (ZSM-5) were synthesized using different ratios of structure directing agents (SDA) and Si/Al, and the synthesized ZSM-5 samples were used in the endothermic decomposition reaction of exo-tetrahydrodicyclopentadiene (exo-THDCP). The ZSM-5 synthesized with a 6.0:100 SDA/SiO2 ratio and Si/Al ratio of 20 (S20/P6.0) showed higher mesoporosity than those of the other synthesized and commercial ZSM-5 catalysts. The decomposition reaction of exo-THDCP using the S20/P6.0 catalyst yielded the highest conversion of 58.4% after 65 min, whereas the commercial catalyst rapidly became deactivated and exhibited only 31.2% conversion, which was the same conversion obtained without the catalyst. The coke analysis results indicated that the ratio of mesopore to micropore volume of the catalyst was a major factor in determining the amount of internal and external coke produced in the catalyst. Moreover, the mesopore/micropore volume ratio affected the composition of soluble coke.

KW - Catalytic endothermic reaction

KW - Coke formation

KW - Deactivation

KW - Exo-Tetrahydrodicyclopentadiene

KW - Structure directing agent

KW - Zeolite catalyst

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DO - 10.1016/j.apsusc.2020.145398

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SN - 0169-4332

VL - 511

JO - Applied Surface Science

JF - Applied Surface Science

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ER -

Preparation of HZSM-5 catalysts with different ratios of structure directing agents and their effects on the decomposition of exo-tetrahydrodicyclopentadiene under supercritical conditions and coke formation

Abstract

Keywords

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