【摘要】 为探究环境友好型高效催化剂原位催化小球藻制备生物柴油，采用5种氨基酸(甘氨酸、天冬氨酸、L-谷氨酸、L-赖氨酸、L-脯氨酸)分别与盐酸和氢氧化钾反应合成氨基酸离子液体，以氨基酸离子液体为提取剂和催化剂，对小球藻进行原位催化制备生物柴油，并采用单因素实验对反应条件进行优化。结果表明：L-脯氨酸与盐酸反应合成的氨基酸离子液体([L-Pro][Cl])具有更好的生物柴油提取率和催化率；小球藻生物柴油的最优制备条件是[L-Pro][Cl]用量100%(以小球藻藻粉质量计)、甲醇与藻粉质量比11∶1、反应温度65℃、反应时间18 h,在此条件下小球藻生物柴油的提取率为83.16%,催化率为64.54%。综上，氨基酸离子液体[L-Pro][Cl]适合用于原位催化小球藻制备生物柴油。更多还原

【Abstract】 To explore the in-situ catalytic preparation of biodiesel from Chlorella using environmentally friendly and efficient catalysts, amino acid ionic liquids were synthesized by reacting five amino acids(glycine, aspartic acid, L-glutamic acid, L-lysine and L-proline) with hydrochloric acid and potassium hydroxide, respectively. The amino acid ionic liquids were used as extraction agents and catalysts for the in-situ catalytic preparation of biodiesel from Chlorella. The reaction conditions were optimized using single factor experiments. The results showed that the amino acid ionic liquid [L-Pro][Cl] synthesized by the reaction of L-proline with hydrochloric acid had better biodiesel extraction rate and catalysis rate. The optimal preparation conditions for Chlorella biodiesel were as follows: dosage of [L-Pro][Cl] 100%(based on the mass of Chlorella powder), mass ratio of methanol to Chlorella powder 11∶1, reaction temperature 65℃, and reaction time 18 h. Under these conditions, the extraction rate of biodiesel was 83.16%, and the catalysis rate was 64.54%. In summary, the amino acid ionic liquid [L-Pro][Cl] is suitable for in-situ catalytic preparation of biodiesel from Chlorella.更多还原