THE LIQUEFACTION REACTION PATHWAY AND MECHANISM OF CORNSTALK HOLOCELLULOSE IN SUB-AND SUPER-CRITICAL ETHANOL
Cornstalk Holocellulose was investigated in sub-and super-critical ethanol by using a 1L stainless-steel autoclave. The five lumping models of liquefaction of cornstalk holocellulose in sub-and super-critical ethanol (gas, organic dissolved, heavy oil, volatile organic compounds and residue) were established based on the characteristics of material and products. The results showed that the main products of cornstalk holocellulosein sub-and super-critical ethanol were gas, volatile organic compounds, heavy oil and organic dissolved. In the liquefaction process, there was reversible reaction between the heavy oil and volatile organic compounds. Secondary reaction of organic dissolved under conditions of sub-and super-critical ethanol was mainly transformed into gas. In the liquefaction process ethanol not only transferred the heat, acted as the solvent of the reaction, but also supplied radicals for the reaction, and these radicals restructured the products of the liquefaction.
liquefaction lump reaction pathway Mechanism
Xie Xin’an Liu Huamin Zheng Lusi Zheng Chaoyang Liu Huanbin
College of Food Science, South China Agriculture University, Guangzhou, 510641, China
国际会议
广州
英文
244-247
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）