CAJ | 학술논문

研究了响应面法优化东京野茉莉油制备生物柴油的工艺。通过单因素实验,对影响转化率的四个主要因素：油醇摩尔比、催化剂用量、反应时间、反应温度进行考察,并根据Box-Behnken中心组合进行4因素3水平的实验设计,以东京野茉莉生物柴油转化率为响应值,进行响应面分析( RSA)。结果表明,东京野茉莉生物柴油的最佳工艺条件为：油醇摩尔比1∶8、催化剂用量为油质量的0.78％、反应时间2.2 h、反应温度60℃,理论转化率为95.81％。实际验证值为95.32％,理论值与实际值相对误差为0.49％,说明通过响应面法能得到一个预测试验结果的模型方程。以东京野茉莉油为原料通过酯化反应制取的生物柴油与0#柴油及国标GB/T 20828-2007主要性能相似,通过与石油柴油调和或添加降凝剂等方法,可改善低温流动性。
연구료향응면법우화동경야말리유제비생물시유적공예。통과단인소실험,대영향전화솔적사개주요인소：유순마이비、최화제용량、반응시간、반응온도진행고찰,병근거Box-Behnken중심조합진행4인소3수평적실험설계,이동경야말리생물시유전화솔위향응치,진행향응면분석( RSA)。결과표명,동경야말리생물시유적최가공예조건위：유순마이비1∶8、최화제용량위유질량적0.78％、반응시간2.2 h、반응온도60℃,이론전화솔위95.81％。실제험증치위95.32％,이론치여실제치상대오차위0.49％,설명통과향응면법능득도일개예측시험결과적모형방정。이동경야말리유위원료통과지화반응제취적생물시유여0#시유급국표GB/T 20828-2007주요성능상사,통과여석유시유조화혹첨가강응제등방법,가개선저온류동성。
The research that response surface methodology ( RSM ) optimized the technological conditions of production of biodiesel from wild Styrax tonkinensis was studied. By single-factor experiments, four major factors influencing the extraction yield were observed, including molar ratio of oil to methanol, dosage of catalyst, reaction time, and reaction temperature. On the basis of single-factor experiments, the experiments were carried out according to Box-Behnken central composite experiment design, and the conversion of biodiesel was chose as response value to do the RSA experiments. The results showed that the optimum conditions were: molar ratio of oil to methanol 18 , dosage of catalyst 0. 78%, reaction time 2. 2 h, and reaction temperature 60 ℃. The predicted conversion of biodiesel was 95. 81%, while the actual extraction yield was 95. 32%, with relative error of 0. 49%, the results of which suggest that a prediction model equation of testing results could be arrived. The fuel characteristics of bio-diesel processed by the transesterification of Styrax tonkinensis oil were the same as that of No. 0 # diesel and GB/T 20828-2007 , blending with diesel fuel or adding depressant of biodiesel could improve low-temperature fluidity.