餐厨垃圾制备燃料乙醇二级催化水解反应的研究

Secondary catalytic hydrolysis reaction of fuel ethanol production from kitchen garbage

餐厨垃圾的水解过程是餐厨垃圾制备燃料乙醇的关键步骤。研究采用两级催化水解技术,较好地解决了淀粉和纤维素协同、经济、高效水解糖化的难题,以餐厨垃圾为原料,研究复合催化剂、酸浓度、水解温度对水解效果的影响。结果表明,使用复合催化剂且浓度为0.5%H2SO4+0.01%助催化剂,在一级水解温度为120℃和二级水解温度为180℃时得到的水解效果较好。

Hydrolysis is the key step to fuel ethanol production from kitchen garbage.By sec- ondary hydrolysis this research has solved the difficulty of economic and high efficiency sacchari- fication on combination of amylum and cellulose. The effect of hydrolysis by compound catalyst, acid concentration and temperature were investigated respectively. The results showed that use the concentration of 0.5% H2SO4 and 0.01% cocatalyst as hydrolysis at 120 ℃ and the secondary hydrolysis at compound catalyst, the temperature of primary 180 ℃ got better effects.