【摘要】 为了提高稻草（RS）的转化率和产物收率,采用了超声、蒸汽爆破和Na₂SO₃处理3种方法对稻草进行预处理（处理后的稻草分别记为CS-RS、ZQ-RS和Na₂SO₃-RS）,通过XRD、SEM、元素分析及化学组分含量分析,筛选出Na₂SO₃处理是最好的预处理方法。Na₂SO₃-RS在200℃下经10%Fe-resin在3.3%的NaCl溶液中水解后,转化率达到97.3%,还原糖（TRS）和平台化合物乙酰丙酸（LA）的产率分别达到为29.6%和13.5%。更多还原

【Abstract】 To increase the conversion of rice straw（RS）and the yield of products, we employed three methods, which were ultrasonic wave,steam explosion and Na₂SO₃ pretreatment to pretreat RS（the treated RS noted as CS-RS, ZQ-RS and Na₂SO₃-RS, respectively）and found that Na₂SO₃ treatment was the best pretreatment method based on XRD, SEM, elemental analysis and content of cellulose, hemicellulose and lignin. The conversion of Na₂SO₃-RS and the yield of total reducing sugar（TRS）and levulinic acid（LA）were 97.3%, 29.6% and 13.5%,respectively by 10% Fe-resin in 3.3% Na Cl solution under 200 ℃.更多还原