Conversion and extracting bio-oils from rod-shaped cornstalk by sub-critical water

Gao, Yan; Liu, Songfeng; Du, Jianwei; Wang, Zhijun; Wang, Hongyan

doi:10.1016/j.jaap.2015.08.010

Cited by 9 publications

(1 citation statement)

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“…Crop straws have abundant reserves, especially corn stalk [2]. Every year, a large number of corn stalk are burned in the fields and buried in the open, which causes great waste of resources and serious environmental issues [3]. With the depletion of fossil fuels and the associated environmental issues, there has been much attention in the recent years to the conversion of lignocellulose to liquid fuels [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Accumulative Recycling of Aqueous Phase on the Properties of Hydrothermal Degradation of Dry Biomass and Bio-Crude Oil Formation

et al. 2021

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For hydrothermal liquefaction of dry biomass to produce liquid fuels, water needs to be added or the aqueous phase products can be recycled. This paper focuses on understanding the relationship between hydrothermal degradation of the dry biomass and oil formation under the condition of accumulative recycling of the aqueous phase. Completely dried corn stalk and deionized water were used for the hydrothermal liquefaction (HTL) experiment. The aqueous products for subsequent recycling were not diluted. It was demonstrated that the recycling of the aqueous can promote the enrichment of organic acids and the conversion of ketones and phenols in the aqueous, improving the yield and quality of Bio-crude oil. After recycling, the yield of Bio-crude oil increased from 20.42% to 24.31% continuously, and the oxygen content decreased from 13.34% to 9.90%. Although the process was accompanied by solid deposition and had a negative impact on the hydrothermal degradation efficiency, the formation of carbon microspheres during the deposition enhanced the utilization of nondegradable solids, while the formation of metal salt particles had a positive impact on oil production. After three rounds of recycling, the solid deposition effect was weakened. At this time, oil production and solids degradation can be promoted simultaneously.

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Section: Introductionmentioning

confidence: 99%