松木屑低温热解液形成机理的实验研究  

EXPERIMENTAL STUDY OF PYROLYSIS LIQUIDS FORMATION MECHANISM FROM PINE SAWDUST PYROLYSIS AT LOW TEMPERATURES

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,昆明650093

出　　处：《太阳能学报》2014年第3期396-401,共6页Acta Energiae Solaris Sinica

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);昆明理工大学自然科学研究基金(KKSY201352124)

摘　　要：利用GC-MS对松木屑低温热解液的组成成分进行分析,并探讨热解液的形成机理。松木屑低温热解液主要为含氧化合物,随热解温度的升高会发生二次反应生成新的化合物。400℃热解液的组成来源于松木屑中木质素、纤维素和半纤维素中大分子键的断裂。在热解温度由400℃升高到600℃的过程中,松木屑热解液经历了由酮类、呋喃类和愈创木酚类化合物向甲苯、苯甲醛等苯基化合物和酚类化合物的转化,部分酚类化合物则进一步转化为萘及其衍生物和茚及其衍生物。The compositions of pyrolysis liquids from pine sawdust pyrolysis at low temperatures were analyzed by GC- MS. The mechanism of pyrolysis liquids formation was discussed. The pyrolysis liquids generated at low temperatures are mainly composed of oxygenated compounds. With temperature increased from 400 to 600 ℃ , secondary reaction occurred to generate new compounds. The component of pyrolysis liquids at 400 ℃ is derived from the cleavage of the macromolecule bonds in lignin, cellulose, and hemicellulose. With temperature increased from 400 to 600 ℃, the transformation of ketones, furans, and guaiacols to phenyl compounds and phenols occurred, and part of the phenols were further converted to naphthalene, indene and their derivatives.

关 键 词：松木屑 热解 热解液 形成机理 GC-MS 

分 类 号：TK6[动力工程及工程热物理—生物能]