CAJ | 학술논문

采用正交试验法对有机溶剂木质素在异丙醇中的降解进行了研究，得出木质素在异丙醇中降解的较优水平为：催化剂Ru/C用量0.20 g、温度280℃、压力2.5 MPa、时间8 h。在该条件下，降解产物中生物油的产率最高可达74.13%，生物油中酚类和醇、酮以及烃类的GC含量总和接近60%。木质素原料和生物油的元素分析说明解聚过程中发生了脱氧；傅里叶红外光谱分析表明木质素的解聚过程中有酚羟基、烷基等新的结构基团产生。
채용정교시험법대유궤용제목질소재이병순중적강해진행료연구，득출목질소재이병순중강해적교우수평위：최화제Ru/C용량0.20 g、온도280℃、압력2.5 MPa、시간8 h。재해조건하，강해산물중생물유적산솔최고가체74.13%，생물유중분류화순、동이급경류적GC함량총화접근60%。목질소원료화생물유적원소분석설명해취과정중발생료탈양；부리협홍외광보분석표명목질소적해취과정중유분간기、완기등신적결구기단산생。
The depolymerization of lignin in isopropanol was studied by orthogonal array test. It was found that the excellent levels of the lignin depolymerization in isopropanol were as follows: Ru/C catalyst amount 0. 20 g, temperature 280 ℃, pressure 2. 5 MPa, reaction time 8 h. Under these conditions, the yield of bio-oil could reach 74. 13%, and a combined GC content of phenolics, cyclic alcohols, cyclic ketones, and hydrocarbons achieved 60%. The elemental analyses of lignin feedstock and bio-oil products indicated that deoxygenation was carried out during the depolymerization. The fourier infrared spectrum ( FT-IR) further indicated that new functional groups such as phenolic hydroxyl and alkyl were formed.