CAJ | 학술논문

在管式反应器内，以酸化油为原料，对制备生物柴油过程中第一步甲酯化反应进行了研究。结果表明：管式反应器可以增强传质，缩短反应时间；在管式反应器中反应的最佳工艺条件为：浓硫酸为催化剂，催化剂用量3%(以反应物的总质量计)，甲醇与酸化油摩尔比30：1，反应温度100℃，线速度15．4 mm/s (对应停留时间7．24 min )；在最佳工艺条件下，产物酸值( KOH )降至1．49 mg/g，可满足下一步酯交换反应要求。
재관식반응기내，이산화유위원료，대제비생물시유과정중제일보갑지화반응진행료연구。결과표명：관식반응기가이증강전질，축단반응시간；재관식반응기중반응적최가공예조건위：농류산위최화제，최화제용량3%(이반응물적총질량계)，갑순여산화유마이비30：1，반응온도100℃，선속도15．4 mm/s (대응정류시간7．24 min )；재최가공예조건하，산물산치( KOH )강지1．49 mg/g，가만족하일보지교환반응요구。
Using aci d oil as raw material, methyl esterification of the first step of the biodiesel preparation in pipeline reactor was studied. The results showed that the pipeline reactor could enhance mass transfer and shorten the reaction time. The optimal reaction conditions in pipeline reactor were determined as fol-lows:with concentrated sulfuric acid as catalyst, catalyst dosage 3% ( based on total mass of reactants ) , molar ratio of methanol to acid oil 30:1 , reaction temperature 100℃, line speed 15 . 4 mm/s ( the corre-sponding dwell time 7. 24 min). Under these conditions,the acid value of the product reduced to 1. 49 mgKOH/g , which met the demand of transesterification of the next step.