西南林业大学学报
西南林業大學學報
서남임업대학학보
JOURNAL OF SOUTHWEST FORESTRY COLLEGE
2014年
2期
108-110
,共3页
竹粉%苯酚液化%微波加热
竹粉%苯酚液化%微波加熱
죽분%분분액화%미파가열
bamboo powder%liquefaction with phenol%microwave heating
以苯酚为液化剂,浓硫酸为催化剂,采用微波加热对竹粉进行液化处理,研究液化条件对液化残渣率的影响,结果表明:竹粉微波液化的优化工艺参数为:微波加热时间8 min、液固比4.5∶1.0、反应温度150℃、催化剂用量9%、微波功率500 W,在此工艺下液化产物的残渣率仅为0.327%;在微波液化过程中,温度是影响液化效率最主要的因素,然后依次是催化剂用量、反应时间、液固比;红外光谱分析表明,竹粉苯酚液化后,芳环被引入到竹粉的分子结构中。
以苯酚為液化劑,濃硫痠為催化劑,採用微波加熱對竹粉進行液化處理,研究液化條件對液化殘渣率的影響,結果錶明:竹粉微波液化的優化工藝參數為:微波加熱時間8 min、液固比4.5∶1.0、反應溫度150℃、催化劑用量9%、微波功率500 W,在此工藝下液化產物的殘渣率僅為0.327%;在微波液化過程中,溫度是影響液化效率最主要的因素,然後依次是催化劑用量、反應時間、液固比;紅外光譜分析錶明,竹粉苯酚液化後,芳環被引入到竹粉的分子結構中。
이분분위액화제,농류산위최화제,채용미파가열대죽분진행액화처리,연구액화조건대액화잔사솔적영향,결과표명:죽분미파액화적우화공예삼수위:미파가열시간8 min、액고비4.5∶1.0、반응온도150℃、최화제용량9%、미파공솔500 W,재차공예하액화산물적잔사솔부위0.327%;재미파액화과정중,온도시영향액화효솔최주요적인소,연후의차시최화제용량、반응시간、액고비;홍외광보분석표명,죽분분분액화후,방배피인입도죽분적분자결구중。
The bamboo powder was liquefied with microwave heating by taking phenol as the liquefying rea-gents and sulfuric acid as catalytic.The effect of different liquefying factors on residue rate was studied.The results showed that the optimum technological parameters included 500 W for microwave power,4.5∶1 .0 as the liquid-solid ratio,9 % of sulfuric acid as catalytic reagent,8 minutes as the reaction duration under 155 ℃ as reaction temperature.Only 0.327 %of residue rate occurred under above optimal conditions. It was found out that tempera-ture was the most important factor to influence the liquefaction effect in the liquefying process,followed by the cata-lyst dosage,reaction time duration,and the liquid-solid ratio.The IR spectrum analysis showed that the aromatic ring was introduced into the molecular structure of bamboo powder after the liquefaction process.