CAJ | 학술논문

为探究生物质快速热解反应历程,利用裂解气质联用仪对生物质进行逐级热解实验,考察在不同温度区间热解液体产物组分的分布规律.实验结果表明,生物质的化学组成和热解温度区间对热解液体产物都有重要影响.桉木在25℃～400℃热解液体产物较少,主要是吡喃和芳香类化合物,其中5,6-二氢-4-羟基-吡喃-2-酮相对峰面积随温度升高而降低;在450℃～500℃热解液体产物种类和产量均较多,主要以酮类和芳香类化合物为主.玉米芯热解规律和桉木的相似,但在25℃～350℃主要以呋喃类化合物为主,主要热解液体产物是2,3-二氢-苯并呋喃和2-甲氧基-4-乙烯基苯酚,在400℃～450℃热解液体产物以酮类化合物为主.生物质主要化学组分在不同温度区间热解得到不同液体产物,对其进行选择性热解,能够有效实现生物质资源的综合利用.
위탐구생물질쾌속열해반응역정,이용렬해기질련용의대생물질진행축급열해실험,고찰재불동온도구간열해액체산물조분적분포규률.실험결과표명,생물질적화학조성화열해온도구간대열해액체산물도유중요영향.안목재25℃～400℃열해액체산물교소,주요시필남화방향류화합물,기중5,6-이경-4-간기-필남-2-동상대봉면적수온도승고이강저;재450℃～500℃열해액체산물충류화산량균교다,주요이동류화방향류화합물위주.옥미심열해규률화안목적상사,단재25℃～350℃주요이부남류화합물위주,주요열해액체산물시2,3-이경-분병부남화2-갑양기-4-을희기분분,재400℃～450℃열해액체산물이동류화합물위주.생물질주요화학조분재불동온도구간열해득도불동액체산물,대기진행선택성열해,능구유효실현생물질자원적종합이용.
To study biomass pyrolysis mechanism step-pyrolysis experiments were carried out to investigate the pyrolysis products distribution in different temperature ranges using pyrolysis-GC/MS. The results show that pyrolysis products are deeply influenced by chemical components of biomass and pyrolysis temperature. The liquid yield of eucalyptus pyrolysis within 25℃～400℃ is less, which were mainly pyrans and aromatics. The dominant pyrolysis product of eucalyptus is 5,6-dihydro-4-hydroxy-2H-pyran-2-one which decreases with increasing temperature. However, high liquid yield and more species are generated in 450℃～500℃ in form of ketones and aromatics. Corn cob has the similar pyrolysis property with eucalyptus. However, its liquid products are mainly furans such as 2,3-dihydro-benzofuran and 4-hydroxyl-3-methylacetophenone in 25℃～350℃, whereas ketones are the main products in 400℃～450℃. Different liquid products are produced from the major chemical components of biomass in different temperature ranges. It is possible to carry out a selective pyrolysis for the major chemical components of biomass to achieve efficiently utilization of biomass resource.