Catalytic cracking of n-decane over NiO–MoO3 modified Pt/ZrO2–TiO2–Al2O3 catalyst with different Al2O3 ratios
- Authors: Zhang H.1, Li X.1, Jiao Y.2, Wang Z.3, Zhu Q.1, Wang J.4, Li X.1
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Affiliations:
- College of Chemical Engineering
- Xi’an Modern Chemistry Research Institute
- School of Aeronautics and Astronautics
- College of Chemistry
- Issue: Vol 57, No 8 (2017)
- Pages: 666-672
- Section: Article
- URL: https://ogarev-online.ru/0965-5441/article/view/179409
- DOI: https://doi.org/10.1134/S0965544117080175
- ID: 179409
Cite item
Abstract
A series of ZrO2–TiO2–Al2O3 composite oxides with different Al2O3 ratios were prepared by coprecipitation method and used as the supports of Pt/NiO–MoO3/ZrO2–TiO2–Al2O3 catalysts. Catalytic activities for n-decane cracking over these catalysts were evaluated under high temperature and high pressure conditions. Physicochemical characteristics of as-prepared catalysts were detected by using automatic adsorption instrument, X-ray diffractometer, temperature programmed reduction, and temperature programmed desorption techniques to characterize the catalysts and supports. The results indicated that the catalyst which contained 60 wt % Al2O3 had the largest surface area and pore volume (152.7 m2/g and 0.39 mL/g, respectively), and also it possessed strongest medium and strong acidity as well as medium acidic density. Moreover, the catalyst with 60 wt % Al2O3 exhibited better cracking performances compared with the others. The gas yields over Cat3 were 1.5 and 1.2 folds higher than that obtained from thermal cracking at 650 and 700°C, respectively. In addition, the heat sinks were improved 0.27 MJ/kg and 0.25 MJ/kg at 650 and 750°C, respectively.
About the authors
Hua Zhang
College of Chemical Engineering
Email: qzhu@scu.edu.cn
China, Chengdu, 610065
Xiongjian Li
College of Chemical Engineering
Email: qzhu@scu.edu.cn
China, Chengdu, 610065
Yi Jiao
Xi’an Modern Chemistry Research Institute
Email: qzhu@scu.edu.cn
China, Shanxi, Xi’an 710065
Zhongzheng Wang
School of Aeronautics and Astronautics
Email: qzhu@scu.edu.cn
China, Chengdu, 610065
Quan Zhu
College of Chemical Engineering
Author for correspondence.
Email: qzhu@scu.edu.cn
China, Chengdu, 610065
Jianli Wang
College of Chemistry
Email: qzhu@scu.edu.cn
China, Sichuan, Chengdu 610064
Xiangyuan Li
College of Chemical Engineering
Email: qzhu@scu.edu.cn
China, Chengdu, 610065
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