TY - JOUR
T1 - Study on the fuel decomposition characteristics and coke formation by type of endothermic fuel and method of catalyst molding
AU - Lee, Tae Ho
AU - Kang, Saetbyeol
AU - Kim, Sung Hyun
N1 - Publisher Copyright:
© 2019 Korean Institute of Chemical Engineers. All rights reserved.
PY - 2019
Y1 - 2019
N2 - This study was carried out to investigate fuel decomposition characteristics and coke formation according to types of endothermic fuels and methods of catalyst molding. Methylcyclohexane (MCH), n-dodecane, and exotetrahydrodipentadiene (exo-THDCP) were used as the endothermic fuels. As a catalyst, USY720 supported with platinum was used. It was manufactured by only using pressure to disk-type, or pelletized with a binder and a silica solution. The characteristics of the catalysts according to the molding method were analyzed by X-ray diffraction analysis, scanning electron microscopy, nitrogen adsorption-desorption isotherm, and ammonia temperature programmed desorption analysis. The reaction was carried out under conditions of high temperature and high pressure (500 oC, 50 bar) in which the fuel could exist in a supercritical state. The product was analyzed by gas chromatograph/mass spectrometer and the coke produced by the catalyst was analyzed by thermogravimetric analyzer. After the reaction, the composition of the products varied greatly depending on the structure of the fuel. In addition, the crystallinity and surface properties of the catalysts were not changed by the method of catalyst molding, but the changes of the acid sites and the pore characteristics were observed, which resulted in changes in the amount and composition of products and coke.
AB - This study was carried out to investigate fuel decomposition characteristics and coke formation according to types of endothermic fuels and methods of catalyst molding. Methylcyclohexane (MCH), n-dodecane, and exotetrahydrodipentadiene (exo-THDCP) were used as the endothermic fuels. As a catalyst, USY720 supported with platinum was used. It was manufactured by only using pressure to disk-type, or pelletized with a binder and a silica solution. The characteristics of the catalysts according to the molding method were analyzed by X-ray diffraction analysis, scanning electron microscopy, nitrogen adsorption-desorption isotherm, and ammonia temperature programmed desorption analysis. The reaction was carried out under conditions of high temperature and high pressure (500 oC, 50 bar) in which the fuel could exist in a supercritical state. The product was analyzed by gas chromatograph/mass spectrometer and the coke produced by the catalyst was analyzed by thermogravimetric analyzer. After the reaction, the composition of the products varied greatly depending on the structure of the fuel. In addition, the crystallinity and surface properties of the catalysts were not changed by the method of catalyst molding, but the changes of the acid sites and the pore characteristics were observed, which resulted in changes in the amount and composition of products and coke.
KW - Endothermic reaction
KW - Exo-Tetrahydrodicyclopentadiene
KW - Methylcyclohexane
KW - N-dodecane
KW - USY720
KW - Zeolite
UR - http://www.scopus.com/inward/record.url?scp=85079003603&partnerID=8YFLogxK
U2 - 10.9713/kcer.2019.57.5.611
DO - 10.9713/kcer.2019.57.5.611
M3 - Article
AN - SCOPUS:85079003603
VL - 57
SP - 611
EP - 619
JO - Korean Chemical Engineering Research
JF - Korean Chemical Engineering Research
SN - 0304-128X
IS - 5
ER -