發(fā)布時間：2018-06-22 02:21

  本文選題：木質(zhì)素 + 炭化��； 參考：《中南林業(yè)科技大學學報》2017年08期

【摘要】：為開發(fā)生物質(zhì)導電材料,以木質(zhì)素為原料,氯化鐵為催化劑,通過熱解炭化工藝制備木質(zhì)素炭,并利用響應面法對影響炭產(chǎn)率的4個主要因素即載氣流量、升溫速率、炭化溫度、炭化時間進行了優(yōu)化。研究結果表明,利用Design-Expert軟件的Box-Behnken設計建立的二次多項式模型較顯著,當載氣流量為1.26 L/min,升溫速率為20℃/min,炭化溫度為700℃,炭化時間為60 min時,炭產(chǎn)率達到最大值46.04%,與實際值45.86%較為接近,說明優(yōu)化結果可信。洗滌處理后的木質(zhì)素炭呈片層堆積狀,其結構類似于石墨微晶炭,電阻率為0.353Ω·cm。
[Abstract]:In order to develop biomass conductive material, lignin carbon was prepared by pyrolysis carbonization process with lignin as raw material and ferric chloride as catalyst. The four main factors affecting the yield of carbon, namely, carrier gas flow rate and heating rate, were studied by response surface method. The carbonization temperature and carbonization time were optimized. The results show that the quadratic polynomial model designed by Box-Behnken of Design-Expert software is obvious. When the carrier gas flow rate is 1.26 L / min, the heating rate is 20 鈩，

本文編號：2051116