摘要
生物质原料淀粉在酸催化条件下,加热水解为葡萄糖,再脱水降解为5-羟甲基糠醛,最后降解成乙酰丙酸。综述了反应挤压法及螺杆挤压机工艺,碳水化合物物料连续水解工艺生产乙酰丙酸;采用树脂吸附法提纯乙酰丙酸。两种生产乙酰丙酸工艺适合商业化生产,生产成本低,易于产业化。据预测,以木薯淀粉为原料生产乙酰丙酸,建立年产50～500 t的中试规模,技术上可能,经济上可行。
Using starch as material,levulinic acid（LA） is obtained by heating and hydrolysis under H2SO4 condition.In this process,starch splits into hexose monomers and then further degrade to 5-hydroxymethylfural by dehydration,which finally degrade to levulinic acid.The paper summarized the processes of Nebraska Lincolnt University’s and Biofine′s.Levulinic acid is separated and purified by adsorbent resin.Both processes are suitable for commercial production of levulinic aidc.The process has low cost and is suitable for industrial production.It is possible on technology and feasible on economy to use cassava starch as raw material to produce levulinic acid on a pilot scale of 50-500 t/a.
出处
《生物质化学工程》
CAS
2013年第4期47-52,共6页
Biomass Chemical Engineering
