CAJ | 학술논문

通过热重分析实验和固定床热解实验研究了麦草碱性亚硫酸钠-蒽醌法制纸桨黑液固形物的热解特性和热解产物分布.结果表明:黑液固形物热解过程分为干燥脱水、有机物热解和无机物转化三个阶段,主要失重发生在200～550℃间;在热重分析基础上按一级反应动力学模型得到了黑液固形物热解各阶段的动力学参数;实验条件下,麦草浆黑液固形物固定床热解后约三分之一转化为挥发分,余下为固体残渣.
통과열중분석실험화고정상열해실험연구료맥초감성아류산납-은곤법제지장흑액고형물적열해특성화열해산물분포.결과표명:흑액고형물열해과정분위간조탈수、유궤물열해화무궤물전화삼개계단,주요실중발생재200～550℃간;재열중분석기출상안일급반응동역학모형득도료흑액고형물열해각계단적동역학삼수;실험조건하,맥초장흑액고형물고정상열해후약삼분지일전화위휘발분,여하위고체잔사.
Pyrolysis characteristics of black liquor solids from wheat straw alkaline sulfite -anthraquinone process were investigated by TGA. The yield distribution was also tested in fixed bed pyrolysis apparatus. Results showed that pyrolysis process of black liquor solids was mainly composed of three stages, including dehydration, organic matters pyrolysis and inorganic matters conversion. Main weight loss happened between 200℃ and 550℃. Based on TGA, simplified as a first-order reaction, kinetic parameter was obtained during pyrolysis process. Under the experimental condition, one third volatile was yielded during pyrolysis of black liquor solids from wheat straw pulping in the fixed bed pyrolysis apparatus, and other was solid residue.