Wu Changyan, Chen Wei, Zhong Linxin, Peng Xinwen, Sun Runcang, Fang Junjie, Zheng Shaobo
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology , Guangzhou, China.
J Agric Food Chem. 2014 Jul 30;62(30):7430-5. doi: 10.1021/jf502404g. Epub 2014 Jul 21.
Preparation of biopolymer-based catalysts for the conversion of carbohydrate polymers to new energies and chemicals is a hot topic nowadays. With the aim to develop an ecological method to convert xylose into furfural without the use of inorganic acids, a biopolymer-derived catalyst (lignosulfonic acid) was successfully used to catalyze xylose into furfural in ionic acid ([BMIM]Cl). The characteristics of lignosulfonic acid (LS) and effects of solvents, temperature, reaction time, and catalyst loading on the conversion of xylose were investigated in detail, and the reusability of the catalytic system was also studied. Results showed that 21.0% conversion could be achieved at 100 °C for 1.5 h. The method not only avoids pollution from conventional mineral acid catalysts and organic liquids but also maked full use of a byproduct (lignin) from the pulp and paper industry, thus demonstrating an environmentally benign process for the conversion of carbohydrates into furfural.
制备用于将碳水化合物聚合物转化为新能源和化学品的生物聚合物基催化剂是当今的一个热门话题。为了开发一种不使用无机酸将木糖转化为糠醛的生态方法，一种生物聚合物衍生的催化剂（木质素磺酸）成功地用于在离子液体（[BMIM]Cl）中催化木糖转化为糠醛。详细研究了木质素磺酸（LS）的特性以及溶剂、温度、反应时间和催化剂用量对木糖转化的影响，还研究了催化体系的可重复使用性。结果表明，在100℃下反应1.5小时，转化率可达21.0%。该方法不仅避免了传统无机酸催化剂和有机液体的污染，还充分利用了制浆造纸工业的副产物（木质素），从而证明了将碳水化合物转化为糠醛的环境友好过程。
