摘要
以MCM-41为载体,通过负载蔗糖并使之碳化、磺化制备出一种单负载型固体酸催化剂S/MCM-41,并通过在其上负载一定量磷钨酸制备出酸性更强的双负载型固体酸催化剂P-S/MCM-41。以大豆油和油酸按比例混合作为模拟餐饮废油原料,两种固体酸作催化剂制备生物柴油的研究发现,双负载型固体酸拥有更好的催化性能。以双负载型固体酸P-S/MCM-41为催化剂,实际餐饮废油为原料制备生物柴油的最佳反应条件为:反应时间7 h,反应温度115℃,醇油摩尔比15∶1,催化剂用量10%(以油质量计)。该条件下生物柴油的最高收率可达94%。
Abstract ：The single -coating solid acid catalyst S/MCM -41 was synthesized by coating MCM -41 with sucrose which then was carbonized and sulfonated. After that, a double - coating catalyst P - S/MCM - 41 was prepared by loading certain amount of phosphotungstic acid on the solid acid S/MCM -41. It was confirmed that the double -coating catalyst performed better than the single -coating catalyst during the biodiesel production from soybean oil and oleic acid simulated swill -cooked dirty oil. The optimal reac- tion conditions of biodiesel production from swill -cooked dirty oil with P- S/MCM -41 as catalyst were as follows ： reaction time 7 h, reaction temperature 115 ℃, molar ratio of methanol to oil 15： 1, catalyst dos- age 10% （based on the mass of oil ）. Under the conditions, the maximum yield of biodiesel could reach 94%.
出处
《中国油脂》
CAS
CSCD
北大核心
2013年第6期74-78,共5页
China Oils and Fats
关键词
固体酸
餐饮废油
生物柴油
MCM-41
蔗糖
磷钨酸
solid acid
swill - cooked dirty oil
biodiesel
MCM - 41
sucrose
phosphotungstic acid
