EFFECTS OF ORGANIC ACID AND LEWIS ACID ON XYLOSE PRODUCED BY HYDROTHERMAL TREATMENT OF CORN STOVER AND CORN COB

Wang Weiyun; Wang Kangni; Huang Shengzhao; Mao Liaoyuan

doi:10.19912/j.0254-0096.tynxb.2020-0793

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (4) : 480-485. DOI: 10.19912/j.0254-0096.tynxb.2020-0793

Topics on Key Technologies for Safety of Electrochemical Energy Storage Systems and Echelon Utilization of Decommissioned Power Batteries

EFFECTS OF ORGANIC ACID AND LEWIS ACID ON XYLOSE PRODUCED BY HYDROTHERMAL TREATMENT OF CORN STOVER AND CORN COB

Wang Weiyun¹, Wang Kangni¹, Huang Shengzhao¹, Mao Liaoyuan²

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Abstract

In order to determine the significant sequence of influencing factors and the optimal process conditions for the production of xylose from corncobs and corn stover by hydrothermal treatment of organic acids and Lewis acids, orthogonal experiments were designed to investigate the effect of acid types, acid concentration, solid-liquid ratio, hydrolysis time and hydrolysis temperature on the yield of xylose. A single-factor experimental is carried out for acid type and acid concentration, and the hydrolysate is analyzed by high performance liquid chromatography. The results show that significant sequence of influencing factors is hydrolysis time>solid-liquid ratio>acid type>hydrolysis temperature>acid concentration; the best treatment conditions are ferric chloride as acid catalyst, acid concentration 15 g/L, solid-liquid ratio 1∶12, treatment temperature 170 ℃, treatment time 15 min. The single factor experiments of corn stover and corncob both reach the maximum xylose yield which are respectively 22.58% and 25.70% when 15 g/L ferric chloride is added.

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biomass / xylose / hydrothermal treatment / corn stover

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Wang Weiyun, Wang Kangni, Huang Shengzhao, Mao Liaoyuan. EFFECTS OF ORGANIC ACID AND LEWIS ACID ON XYLOSE PRODUCED BY HYDROTHERMAL TREATMENT OF CORN STOVER AND CORN COB[J]. Acta Energiae Solaris Sinica. 2022, 43(4): 480-485 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0793

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