Primary Research on the Furfural Separation from the Bagasse Producing Sugar

[Objective] The research aimed to initially study the best super/sub-critical liquefaction reaction condition of bagasse and the separation of furfural.[Method] The bagasse was as the material,the influences of reaction temperature and solid-liquid ratio(bagasse/water) on the reducing sugar concentration and the percentage content of furfural were inspected.Moreover,the influence of temperature on the furfural separation was also inspected.[Result] The best sugar production condition of bagasse was that the reaction temperature was 368 ℃,and the solid-liquid ratio was 1∶7.9.Under the best condition,the furfural was less.At the high temperature(300 ℃),the generated furfural was less.Via the deflation,the generated furfural in the reaction was discharged.The discharged furfural at the first deflation point was the most,and the deflation effect was the best.[Conclusion] For the discharged mixed liquid,the useful furfural should be further studied and separated,which realized the better utilization of straw resource.