PYROLYSIS AND GASIFICATION CHARACTERISTICS OF ALKALINE BLACK LIQUOR

摘要：

In order to study pyrolysis and CO2 gasification behavior of alkaline black liquor (ABL), thermochemical and evolution patterns of volatile products was investigated by using the technology of thermogravimetric analyzer coupled with Fourier transform infrared spectrometer (TG-FTTR). TG results show pyrolysis and gasification of ABL could be divided into three distinct phases of weight loss, 5.92％, 32.64％ and 29.33％, respectively. By analyzing online FTIR spectra carefully, we find that the main composition of evolved gas from the ABL includes carbon monoxide, water, methane, methanol, aldehydes and ketones and benzene series. Water and methanol contribute to the mass loss rate at low temperatures; carbon monoxide, benzene series, aldehyde and ketone contribute to the mass loss rate at high temperatures. The existence of carboxylate and phenolate sites in alkaline lignin has intensively increased the yield of carbon monoxide.

关键词： black liquor pyrolysis gasification TG-FTIR

作者: Da-liang Guo Shu-bin Wu Rui Lou Gao-jin Lv

作者单位: State Key Laboratory of Pulp and Paper Engineering,South China University of Technology, Guangzhou 510640,China

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 30-33

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）