Study on the Liquefaction Conditions for Corn Straw under Atmospheric Pressure
With the progress of modern technology,the treatment of agricultural wastes such as corn straw(CS)is no longer based on incineration as the main way,but through atmospheric pressure liquefaction to realize the value-added transformation of corn straw and improve the ecological en-vironment.The effects of different liquefaction agents,liquefaction time,liquefaction temperature,liquid-solid ratio and catalyst on the liquefaction yield and the glycol content in liquefaction products are investigated by single factor method in order to optimize the process.The liquefied products are characterized by gas chromatography mass spectrometry(GC-MS)and Fourier transform infrared spectroscopy(FTIR).The results show that the liquefaction effect is best when the liquefaction agent is polyethylene glycol 400 and ethylene glycol with a ratio(PEG400∶EG)of 7∶3,the liquid-solid ratio of liquefaction agent to corn straw is 10∶1,and the concentrated sulfuric acid catalyzes the liquefaction at 160 ℃ for 60 min.
corn strawliquefaction under atmospheric pressureFTIRGC-MS
万方数据
维普
