共 50 条
Light olefin production from catalytic pyrolysis of waste tires using nano-HZSM-5/γ-Al2O3 catalysts
被引:27
|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
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
相关论文