温度对松木屑气化液体产物组成的影响  

Effect of temperature on composition of liquid products from pine sawdust gasification

作　　者：刘慧利[1] 胡建杭[1] 王华[1] 王超[1] 李娟琴[1] 

机构地区：[1]昆明理工大学冶金节能减排教育部工程研究中心冶金与能源工程学院,云南昆明650093

出　　处：《燃料化学学报》2013年第2期189-197,共9页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(50906035);云南省应用基础研究基金(2009ZC014M);云南省教育厅科学研究基金(09Z0015)

摘　　要：利用傅里叶变换红外光谱(FT-IR)和气质联用(GC/MS)技术,研究了松木屑在400～900℃气化液体产物的主要组成成分和液体产物主要化学组成的来源与转化随气化温度变化的规律。结果表明,松木屑低温气化液体产物主要为酮、呋喃和愈创木酚等含氧化合物。随气化温度升高,液体产物的组成发生显著变化,400～500℃主要发生愈创木酚向酚类化合物的转变,500～600℃主要发生酮、呋喃向酚类化合物的转变,600～700℃主要发生酚类向茚和PAHs(多环芳烃)的转变,700～900℃主要发生酚类化合物向PAHs的转变,900℃液体产物的组成为大分子量的PAHs。The gasification of pine sawdust in an updraft gasifier was carded out at 400 - 900 ℃ to investigate the effect of temperature on the composition of the liquid products and their chemical origins. The liquid products were analyzed by using Fourier transform infrared spectroscopy （PT-IR） and gas chromatography/mass spectrometry （GC/MS）. The results showed that the primary liquid products are mainly composed of oxygenated compounds such as ketones, furans and guaiacols. The composition of the liquid products change largely with the gasification temperature： the guaiacols are transformed to phenolics at 400 - 500 ℃ ; the ketones and the furans are converted to phenolics at 500 - 600 ℃ ; the transformation of the phenolics to indenes and PAHs （polycyclic aromatic hydrocarbons） occurs at 600 -700 ℃ and the phenolics to PAHs at 700 -900 ℃ ; at 900 ℃, the liquid products were exclusively composed of larger PAHs.

关 键 词：松木屑 气化 液体产物 傅里叶变换红外光谱 气质联用 

分 类 号：TK6[动力工程及工程热物理—生物能]