State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China.
Bioresour Technol. 2019 Oct;290:121764. doi: 10.1016/j.biortech.2019.121764. Epub 2019 Jul 6.
Efficient conversion of dilute-oxalic acid pretreated bagasse hydrolysate to furfural was developed using recyclable ironic phosphates (FePO) catalysts in the modified heterogeneous system. The effects of reaction conditions on the furfural yields were investigated, and the stability and water solubility of catalysts were evaluated. Results showed that the maximum furfural yield of 88.7% was obtained in the modified biphasic system by FePO catalysts at 190 °C for 120 min. The catalyst could be recycled and reused in conversion of the xylose-rich hydrolysate into furfural due to the unique feature that the catalyst showed solid state at room temperature and could be gradually dissolved into the aqueous phase upon increasing the reaction temperature and time. The experiments of five-time recycles showed that the FePO catalyst exhibited excellent stability and catalytic performances.
采用可回收的铁磷酸盐（FePO）催化剂在改进的多相体系中，从稀草酸预处理过的蔗渣水解液中高效转化为糠醛。考察了反应条件对糠醛收率的影响，并评价了催化剂的稳定性和水溶性。结果表明，在 190℃下反应 120min，FePO 催化剂在改进的双相体系中可获得最大的 88.7%的糠醛收率。由于催化剂在室温下呈固态，且随着反应温度和时间的增加，催化剂可逐渐溶解于水相，因此该催化剂可用于将富含木糖的水解液转化为糠醛，并可回收和重复使用。五次循环实验表明，FePO 催化剂表现出优异的稳定性和催化性能。
