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Effect of the mixing ratio of methylcyclohexane and n-dodecane on the product composition and coke formation in the catalytic decomposition reaction of blended fuels

Authors
Lee, Tae HoMun, SungyongKim, Sung HyunLee, Ki Bong
Issue Date
25-6월-2021
Publisher
ELSEVIER SCIENCE INC
Keywords
Aromatic hydrocarbons; Coke formation; HZSM-5; Methylcyclohexane; n-dodecane
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.98, pp.389 - 396
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume
98
Start Page
389
End Page
396
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/127826
DOI
10.1016/j.jiec.2021.03.025
ISSN
1226-086X
Abstract
Analyzing the products obtained from the catalytic reaction of jet fuels is challenging because the fuels consist of several components. It is crucial to select suitable model compounds as representatives of the fuel to study its catalytic reaction, and methylcyclohexane (MCH) and n-dodecane were selected consequently. Further, the change in the products obtained from the reaction (catalyzed by commercial HZSM-5 in a flow reactor under a supercritical condition (550 degrees C and 5 MPa)) was investigated by varying the ratios of MCH and n-dodecane in the blended fuels. Although the fuel conversion and gas yield were proportional to the n-dodecane fraction in the fuel, the yield of aromatic compounds at each time, which was relative to the yield at the initial time, did not indicate any relation with it. The relative yields of the aromatic hydrocarbons obtained from the blended fuel reduced much slower than those obtained from the pure fuels. Particularly, the fuel containing an n-dodecane mass fraction of 0.2 exhibited the lowest reduction rate regarding the relative yields of aromatic hydrocarbons. The change in the relative yields of the products regarding the fuels was not crucial to coke formation. (C) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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Lee, Ki Bong
공과대학 (화공생명공학과)
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