MCM-41/SBA-15中孔分子筛对生物质热解油的催化裂解研究  

Study on biomass pyrol ytic liquid products with MCM-41/SBA-15 as catalyst

作　　者：鲍卫仁[1] 薛晓丽[1] 曹青[1] 卢建军[1] 吕永康[1] 

机构地区：[1]太原理工大学煤科学与技术教育部和山西省重点实验室,山西太原030024

出　　处：《燃料化学学报》2006年第6期675-679,共5页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(50576062);山西省自然科学基金(2006011020)

摘　　要：以中孔MCM-41/SBA-15分子筛作催化剂,对不同条件下快速热解得到的木屑热解蒸气进行催化裂解,采用元素分析、凝胶色谱(s.e.c.)和气质联用(GC-MS)等手段表征。结果表明,同未加催化剂比较,分子筛MCM-41/SBA-15的存在可使热解液体中氧的质量分数降低,长链化合物所占比例明显减小,其中SBA-15作催化剂比MCM-41作催化剂对热解蒸气裂解更容易得到接近柴油和汽油分子量的热解油,但芳香类化合物的质量分数明显增加。热解油中Pentadecane、Hexadecane、D im e-thyjbenzene、Naphthalene等质量分数增加,而含氧类物质M ethyl-Phenol、2-M ethoxy-4-M ethyl-Phenol、2-M ethoxy-4-Propyl-Phenol等质量分数减少。The influences of mesoporous materials like MCM-41/SBA-15 as catalysts on pyrolytic liquids from wood were investigated. The pyrolysis oil was analyzed by elemental analyzer, size exclusion chromatography and gas chromatography-mass spectrometry. Elemental analysis for the upgraded oils shows a decreasing trend for oxygen content of the oil, which confirmed that the mesoporous materials is a kind of effective substances for removing oxygen from the pyrolysis oil. After catalysis upgrading the proportion of the long chain compounds is obviously diminished, while the aromatic compounds markedly increase in pyrolytic oil. The analysis from GC- MS show that the content of the compounds such as pentadecane, hexadecane, dimethyjbenzene, naphthalene, etc. markedly increase, and methyl-phenol, 2-methoxy-4-methyl-phenol, 2-methoxy-4-ropyl-phenol, etc. decreases.

关 键 词：生物质热解油 MCM-41 SBA-15 催化裂解 

分 类 号：TE624.431[石油与天然气工程—油气加工工程]