Catalytic effects of Fe, Al and Si on the formation of NOX precursors and HCl during straw pyrolysis

被引：29

作者：

Ren, Qiangqiang ^{[1
]}

Zhao, Changsui ^{[1
]}

Wu, Xin ^{[1
]}

Liang, Cai ^{[1
]}

Chen, Xiaoping ^{[1
]}

Shen, Jiezhong ^{[2
]}

Wang, Zheng ^{[2
]}

机构：

[1] Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu Prov, Peoples R China

[2] Wuxi Huaguang Boiler Co Ltd, Wuxi 214028, Jiangsu Prov, Peoples R China

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2010年 / 99卷 / 01期

关键词：

Catalysis; HCl emission; NOX precursor; Pyrolysis; TG-FTIR; Wheat straw; TG-FTIR; THERMOGRAVIMETRIC CHARACTERISTICS; SO(X) PRECURSORS; GAS ATMOSPHERE; CO-PYROLYSIS; L-LEUCINE; BIOMASS; NH3; GASIFICATION; RESIDUE;

D O I：

10.1007/s10973-009-0150-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The catalytic effects of iron, aluminum or silicon on the formation of NOX precursors (HCN, NH3 and HNCO) and HCl during wheat straw pyrolysis were studied using a thermogravimetric analyzer (TG) coupled with a Fourier transform infrared (FTIR) spectrometer in argon atmosphere. The results show that the presence of iron, aluminum or silicon decreases conversion of straw-N into NH3 with the sequence of Fe > Si > Al. The iron or silicon addition suppresses N-conversion into HCN and HNCO, and the aluminum addition has no notable influence on HCN emission during pyrolysis. The share of N-conversion to NH3 and HCN increases, but that to HNCO and NO decreases a little in the presence of added iron, aluminum or silicon. The addition of SiO2 results in the highest HCl removal efficiency.

引用

页码：301 / 306

页数：6

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