NDLI: Influence of Microwave Heating on the Liquefaction Kinetics of Corn Stover in Ethylene Glycol

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Influence of Microwave Heating on the Liquefaction Kinetics of Corn Stover in Ethylene Glycol

Content Provider	Semantic Scholar
Author	Li, Zhenning Han, Lujia Xiao, Weihua
Copyright Year	2013
Abstract	The microwave liquefaction kinetics of corn stover in the presence of ethylene glycol (EG) using sulfuric acid as a catalyst was studied. The liquefaction apparent rate constant (k) was examined using a first-order reaction model. The k values of corn stover increased from 0.080 min -1 to 0.165 min -1 , with the reaction temperature increasing from 120 o C to 180 o C. The k value of cellulose at 160 o C was close to that of corn stover, indicating that cellulose was involved in the rate-determining step in the microwave liquefaction. The microwave liquefaction rate of corn stover at 160 o C was seven times greater than that of conventional liquefaction with external heating. The apparent activation energy (Ea) was 22.6 kJ mol -1 and the frequency factor (A) was found to be 12.98×10 5 s -1 . The decrease in apparent activation energy and the increase in the frequency factor as compared to conventional liquefaction kinetic parameters indicates a non-thermal effect of microwave in the liquefaction of corn stover, which explains the acceleration mechanism of liquefaction with microwaves.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://bioresources.cnr.ncsu.edu//BioRes_08/BioRes_08_3_3453_Li_Han_Xiao_Microwave_Heating_Liquefaction_Stover_EthGlycol_3991.pdf
Language	English
Access Restriction	Open
Subject Keyword	Cellulose DUOXA1 gene Ethylenes First-order predicate Glycols Heating Kinesiology Kinetics (discipline) Kinetics Internet Protocol Maxima and minima Microwave Sulfuric acid ethylene glycol kilojoule (kJ)
Content Type	Text
Resource Type	Article

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