文献类型：期刊文献

英文题名：Catalytic conversion of rubber wastes to produce aromatic hydrocarbons over USY zeolites: Effect of SiO2/Al2O3 mole ratio

作者：Wang, Jia[1,2,3,4,5] Jiang, Jianchun[1,2,3] Wang, Xiaobo[6,7] Liu, Peng[2,3] Li, Jing[2,3] Liu, Guanghua[8] Wang, Kui[2,3] Li, Mi[5] Zhong, Zhaoping[4] Xu, Junming[2,3] Ragauskas, Arthur J.[5,9,10]

第一作者：Wang, Jia

通信作者：Jiang, Jianchun

机构：[1] College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing, Jiangsu, 210037, China; [2] Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry [CAF], No. 16, Suojin Five Village, Nanjing, 210042, China; [3] Co-Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Longpan Road 159, Nanjing, 210037, China; [4] Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, No. 2 Sipailou, Xuanwu District, Nanjing, Jiangsu, 210096, China; [5] Department of Chemical & Biomolecular Engineering, the University of Tennessee, Knoxville, TN, 37996, United States; [6] School of Environmental Science, Nanjing Xiaozhuang University, Nanjing, 211171, China; [7] Geo-environmental Research Centre, School of Engineering, Cardiff University, Cardiff, CF24 3AA, United Kingdom; [8] Dongguan Baida New Energy Co., Ltd., Dongguan, Guangdong, 523001, China; [9] Department of Forestry, Wildlife and Fisheries, Center for Renewable Carbon, the University of Tennessee, Institute of Agriculture, Knoxville, TN, 37996, United States; [10] Joint Institute for Biological Science, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, United States

年份：2019

卷号：197

外文期刊名：Energy Conversion and Management

收录：EI(收录号：20193207284065);Scopus(收录号：2-s2.0-85072631700)

语种：英文

外文关键词：Aluminum compounds - Aromatic hydrocarbons - Aromatization - Mineral oils - Molar ratio - Olefins - Pore size - Pyrolysis - Rubber products - Silica - Silicon - Toluene - Wastes - Xylene - Zeolites

摘要：Catalytic conversion of rubber wastes to produce an alternative fuel resource is a promising approach to dispose of solid wastes and address environmental issues. In this study, catalytic fast pyrolysis (CFP) of rubber wastes over acidic zeolites was conducted, and the effect of SiO2/Al2O3 mole ratio of USY zeolites on the formation of aromatic hydrocarbons was explored. Experimental results indicated that alkenes and aromatic hydrocarbons were the main pyrolytic products obtained from fast pyrolysis of rubber wastes, and the pyrolysis temperature played a vital role in the formation of aromatics with the highest concentration achieved at 750 °C. Moreover, catalyst types also affected the catalytic degradation of rubber wastes since limonene was completely decomposed in the presence of zeolites. Compared to SAPO-34, zeolites with higher external surface area, stronger Br?nsted acid sites, and larger pore size, including USY, HY, and Hβ, were more effective in the production of aromatic hydrocarbons with the highest content obtained from USY catalyzed run. Given the observed effect of SiO2/Al2O3 mole ratio of USY zeolites on the formation of aromatic hydrocarbons during the CFP of rubber wastes, USY with low SiO2/Al2O3 ratio of 5.3 was more beneficial to the generation of aromatic hydrocarbons, while that with higher SiO2/Al2O3 mole ratio (11.5) facilitated the formation of alkenes. Simultaneously, the product distribution of aromatic hydrocarbons obtained from CFP of rubber wastes over USY zeolites was dominated by xylenes, alkylbenzenes, and toluene, and USY with SiO2/Al2O3 mole ratio of 5.3 was more active in the production of toluene and xylenes. ? 2019 Elsevier Ltd