Supercritical Ethanolysis of Wheat Stalk Powder over CaO/Al2O3 and CaO/Al2O3/Fe3O4

作者：Xu, Wen-Juan; Zhao, Wei^*; Sheng, Chen; Zhong, Shi-Teng; Wu, Xiao-Na; Yan, Cai-Hui; Bai, Sha; Zong, Zhi-Min; Wei, Xian-Yong

来源：Energy & Fuels, 2010, 24(1): 250-252.

DOI：10.1021/ef900535y

• SUGAR-CANE BAGASSE
• THERMAL-PROCESSES
• BIOMASS
• LIQUEFACTION
• PYROLYSIS

A study was conducted to analyze the noncatalytic and catalytic supercritical ethanolysis (SCE) of wheat stalk powder (WSP) using CaO/Al 2O3 and CaO/Al2O3/Fe 3O4 as catalysts. WSP weighing about 10g, 0 or 1g a catalyst, and 150 ml of ethanol were placed into a 500ml stainless-steel, magnetically stirred autoclave. Each reaction mixture was taken out from the autoclave as clearly as possible with ethanol and filtrated through a membrane filter with a pore size of 0.8 μm. The residue was repeatedly washed with ethanol to extract the residual ethanol-extractable fraction (EEF) completely. The results show that EEF yields are 40.2, 53.3, 96.9, and 77.1% from noncatalytic, CaO/Al2O3-catalyzed, fresh CaO/Al 2O3/Fe3O4-catalyzed, and recovered CaO/Al2O3/Fe3O4-catalyzed SCEs of WSP, respectively.

• 出版日期2010-1
• 单位武汉科技大学; 中国矿业大学（北京）