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《Journal of Anhui Agricultural Sciences》 2009-27
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Study on the Liquefaction Technology of Corn Stalks

LIANG Ying et al(College of Arts and Sciences,Heilongjiang Bayi Agricultural University,Daqing,Heilongjiang 163319)  
[Objective] The study aimed to optimize the liquefaction technology of corn stalks.[Method] With liquefaction rate as index,the suitable liquefier and catalyst were screened out through single factor experiments and the liquefaction technology was optimized through orthogonal experiment.[Result] The liquefaction effects of EC and EC+EG were better and their liquefaction rates were close to 80% after liquefaction for 60 min.The liquefaction effect of EG was worse and its liquefaction rate did not reach 70% till liquefaction for 100 min.With concentrated sulfuric acid as catalyst,the liquefaction rates of corn stalks with EC and EC+EG as liquefier were close to 80%;with phosphoric acid as catalyst,their liquefaction rates were close to 50%.With concentrated hydrochloric acid as catalyst,the liquefaction rate of corn stalks with EC as liquefier was 24% and that of corn stalks with EC+EG as liquefier was only 11%.The liquefaction rate of corn stalks with sodium carbonate and sodium hydroxide as catalyst was lower than 5%.The better liquefaction technology was adding 3% catalyst and liquefying at 160 ℃ for 1.0 h.Under this condition,the liquefaction rate of corn stalks was 90.56%.[Conclusion] Liquefaction temperature was the most primary factor influencing liquefaction rate,the second was the dosage of catalyst and the influence of liquefaction time was least.
【Fund】: 黑龙江省科技攻关计划项目(GB06B501)
【CateGory Index】: S216.2
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