Catalytic cracking of n-decane over NiO–MoO3 modified Pt/ZrO2–TiO2–Al2O3 catalyst with different Al2O3 ratios


Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

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

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2017 Pleiades Publishing, Ltd.