| 生物质醇解轻油精炼过程研究 |
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| 引用本文： | 邹献武,秦特夫,黄洛华. 生物质醇解轻油精炼过程研究[J]. 林产化学与工业, 2012, 32(2): 21-24 |
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| 作者姓名： | 邹献武 秦特夫 黄洛华 |
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| 作者单位： | 1. 中国林业科学研究院 木材工业研究所;国家林业局 木材科学与技术重点实验室, 北京 100091;;2. 中国林业科学研究院 林业新技术研究所, 北京100091 |
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| 基金项目： | 国家林业局林业公益性行业科研专项(200904026) |
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| 摘 要： | 在定性分析醇解轻油组成的基础上,通过热重模拟和实沸点蒸馏研究醇解轻油分离提取高值化学品的可行性,结果表明蒸馏过程可以分为4个阶段:a)室温～141℃;b)141～207℃;c)207～280℃和d)280～400℃。近70%的馏分在207℃以前被蒸出。同时,即使在141℃以下,也会发生缩聚反应生成水,而且生成的水能够夹带出部分正辛醇。而在141～207℃馏程范围内,正辛醇、甲酸辛酯、乙酸辛酯和少量的己酸-4-辛酯及二辛醚形成共沸物。蒸馏残渣的红外光谱分析结果表明,蒸馏过程发生羟醛缩合反应以及脱水缩聚反应,生成更多的芳烃和醚类化合物。
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| 关 键 词： | 生物质 醇解 轻油 精炼过程 |
Study on the Refining Process of Light Oil from Biomass Alcoholysis |
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| ZOU Xian-wu,QIN Te-fu,HUANG Luo-hua. Study on the Refining Process of Light Oil from Biomass Alcoholysis[J]. Chemistry & Industry of Forest Products, 2012, 32(2): 21-24 |
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| Authors: | ZOU Xian-wu QIN Te-fu HUANG Luo-hua |
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| Affiliation: | 1(1.Research Institute of Wood Industry,Chinese Academy of Forestry;Key Laboratory of Wood Science and Technology of SFA,Beijing 100091,China;2.Institute of New Technology of Forestry,CAF,Beijing 100091,China) |
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| Abstract: | Based on the qualitative analysis of light oil from biomass alcoholysis,the thermogravimetry simulation and real distillation processes were performed to study the feasibility of separation of valuable chemicals from light oil.The results showed that the distillation processes could be divided into four stages: a) room temperature-141 ℃;b)141-207 ℃;c) 207-280 ℃ and d) 280-400 ℃.Near 70% fraction was distilled before 207℃.It was found that condensation reaction took place even at the first stage under the temperature of 141 ℃,which resulted in the formation of water.During this stage,1-octanol could be entrained with the water in distillation process.At the second stage of temperature between 141-207 ℃,an azeotropic system was formed by 1-octanol,formic-acid-octyl-ester,acetic-acid-octyl-ester,and minor hexanoic-acid-4-octyl-ester as well as octyl-ether.Finally,the FTIR analysis on the distillation residue showed that aldol condensation and dehydration reaction took place during the distillation processes,which resulted in the formation of aromatic compounds and ethers. |
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| Keywords: | biomass alcoholysis light oil refining process |
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