生物质化学工程
生物質化學工程
생물질화학공정
BIOMASS CHEMICAL ENGINEERING
2011年
4期
23-26
,共4页
徐俊明%戴伟娣%许玉%蒋剑春
徐俊明%戴偉娣%許玉%蔣劍春
서준명%대위제%허옥%장검춘
稻壳%热解%生物油
稻殼%熱解%生物油
도각%열해%생물유
rice husk%pyrolysis%bio-oil
以稻壳为原料,通过流化床快速热解的方式制备生物油。初步考察了螺旋进料速率对流化床反应参数的影响。当进料速率由4kg/h提高至5kg/h时,床层温度明显下降,床层压差明显增加,燃气流量也明显增加,表明热解产物更多地发生了二次裂解反应。采用GC-MS对快速热解所得生物油的组成进行分析,采用TG—DSC考察生物油的热稳定性,表明在250—400℃之间,出现较强的放热现象,缩聚现象严重,并对其重要的燃料性能进行表征,pH值2.33,水分24.0%,热值16.3MJ/kg,密度1.17g/mL,黏度45mm2/s(30℃)。
以稻殼為原料,通過流化床快速熱解的方式製備生物油。初步攷察瞭螺鏇進料速率對流化床反應參數的影響。噹進料速率由4kg/h提高至5kg/h時,床層溫度明顯下降,床層壓差明顯增加,燃氣流量也明顯增加,錶明熱解產物更多地髮生瞭二次裂解反應。採用GC-MS對快速熱解所得生物油的組成進行分析,採用TG—DSC攷察生物油的熱穩定性,錶明在250—400℃之間,齣現較彊的放熱現象,縮聚現象嚴重,併對其重要的燃料性能進行錶徵,pH值2.33,水分24.0%,熱值16.3MJ/kg,密度1.17g/mL,黏度45mm2/s(30℃)。
이도각위원료,통과류화상쾌속열해적방식제비생물유。초보고찰료라선진료속솔대류화상반응삼수적영향。당진료속솔유4kg/h제고지5kg/h시,상층온도명현하강,상층압차명현증가,연기류량야명현증가,표명열해산물경다지발생료이차렬해반응。채용GC-MS대쾌속열해소득생물유적조성진행분석,채용TG—DSC고찰생물유적열은정성,표명재250—400℃지간,출현교강적방열현상,축취현상엄중,병대기중요적연료성능진행표정,pH치2.33,수분24.0%,열치16.3MJ/kg,밀도1.17g/mL,점도45mm2/s(30℃)。
Bio-oil from rice husk was prepared by fast pyrolysis. The effect of feed rate on the reaction parameters of fluidized reactor was investigated. With increasing feed rate (4 kg/h to 5 kg/h) it was found that the pressure difference and pyrolysis gas were also increased, while reaction temperature decreased. These results indicated that secondly-cracking reaction was increased in pyrolytic products. The components of product were analysized by GC-MS. Thermal stability of bio-oil was determined by TG-DSC. The major fuel properties of bio-oil were characterized.