Light olefin production from catalytic pyrolysis of waste tires using nano-HZSM-5/γ-Al2O3 catalysts

被引：28
作者：
He, Zhuangzhang [1 ]
Jiao, Qingze [1 ,2 ]
Fang, Zhuqing [1 ]
Li, Taotao [1 ]
Feng, Caihong [1 ]
Li, Hansheng [1 ]
Zhao, Yun [1 ]
机构：
[1] Beijing Inst Technol, Sch Chem & Chem Engn, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Sch Mat & Environm, Zhuhai 519085, Guangdong, Peoples R China
来源：
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2018年 / 129卷
基金：
中国国家自然科学基金;
关键词：
Nano-HZSM-5; gamma-Al2O3; Catalytic pyrolysis; Waste tires; Light olefins; FLUIDIZED-BED REACTOR; ZSM-5; ZEOLITE; SCRAP TIRES; PROCESS PARAMETERS; SIO2/AL2O3; RATIO; ACTIVATED CARBON; OIL; PERFORMANCE; FUEL; CONVERSION;
D O I：
10.1016/j.jaap.2017.12.002
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Nano-HZSM-5/gamma-Al2O3 composite catalysts were prepared by employing mesoporous gamma-Al2O3 as supports. Their structures, morphologies and acidity were characterized using powder X-ray diffraction (XRD) analysis, Fourier transform infrared spectroscopy (FTIR) analysis, N-2 adsorption and desorption measurement, scanning electron microscope and the NH3 temperature-programmed desorption. Nano-HZSM-5 was uniformly dispersed and grown on the surface of gamma-Al2O3 carrier. Nano-HZSM-5/gamma-Al2O3 also showed a proper acidity with the uniform acid density distribution. The catalytic pyrolysis of waste tires was carried out in a micro-reactor system, and the composition of the product was analyzed on-line by gas chromatography. The selectivity to light olefins of nano-HZSM-5/gamma-Al2O3 reached 29.9%, which was higher than that of nano-HZSM-5 zeolites, gamma-Al2O3 and the mixture of nano-HZSM-5 and gamma-Al2O3 with the same composition as nano-HZSM-5/gamma-Al2O3.
引用
收藏
页码：66 / 71
页数：6
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