CAJ | 학술논문

设计合成了一系列Br?nsted–Lewis双酸性离子液体[Py（CH2）4SO3H][HSO4]/MClX，将其用于催化酯交换制备生物柴油。考察了金属氯化物的种类及其与[Py（CH2）4SO3H][HSO4]的摩尔比对离子液体催化性能的影响。结果显示：离子液体[Py（CH2）4SO3H][HSO4]–2FeCl3具有最好的催化性能。在其作为催化剂时，考察了醇油摩尔比、催化剂用量、反应温度和反应时间对生物柴油收率的影响。结果表明：当醇油摩尔比为8∶1，催化剂用量为5%（相对于原料油质量），反应温度为130℃，反应时间为6 h时，生物柴油收率可达96.2%。离子液体具有较好的重复使用能力，重复使用6次后，生物柴油收率没有明显降低。
설계합성료일계렬Br?nsted–Lewis쌍산성리자액체[Py（CH2）4SO3H][HSO4]/MClX，장기용우최화지교환제비생물시유。고찰료금속록화물적충류급기여[Py（CH2）4SO3H][HSO4]적마이비대리자액체최화성능적영향。결과현시：리자액체[Py（CH2）4SO3H][HSO4]–2FeCl3구유최호적최화성능。재기작위최화제시，고찰료순유마이비、최화제용량、반응온도화반응시간대생물시유수솔적영향。결과표명：당순유마이비위8∶1，최화제용량위5%（상대우원료유질량），반응온도위130℃，반응시간위6 h시，생물시유수솔가체96.2%。리자액체구유교호적중복사용능력，중복사용6차후，생물시유수솔몰유명현강저。
A series of Br?nsted–Lewis acidic ionic liquid [Py(CH2)4SO3H][HSO4]/MClX were synthesized,and they were used as catalyst in the transesterification of soybean oil with methanol to produce biodiesel. Effects of the species of metal chlorides and molar ratio of metal chlorides to [Py(CH2)4SO3H][HSO4] on the catalytic properties were studies,[Py(CH2)4SO3H][HSO4]–2FeCl3 showed excellent activity in the transesterification. Factors influencing on yield of biodiesel catalyzed with ionic liquid [Py(CH2)4SO3H][HSO4]–2FeCl3 were investigated following molar ratio of methanol to soybean oil,catalyst concentration,reaction temperature and reaction time. Results showed that the yield of biodiesel could reach to 96.2%under the conditions with the molar ratio of methanol to soybean oil 8∶1,catalyst dosage 5%,reaction temperature 130℃,reaction time 6 h. The ionic liquid could be recycled 6 times with only a slight decrease in activity.