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Hydrolysis behavior of tofu waste in hot compressed water
Alternative TitleBiomass Bioenerg.
Tian, Y. J.; Kumabe, K.; Matsumoto, K.; Takeuchi, H.; Xie, Y. S.; Hasegawa, T.
Conference NameConference and Exhibition on Biomass for Energy (WORLD BIOENERGY)
Source PublicationBiomass & Bioenergy
Conference DateMAY 29-31, 2012
Conference PlaceJonkoping, SWEDEN
AbstractTofu waste (TW) is a typical high water-containing biomass; and the hydrothermal process is preferred to utilize it with low energy cost. TW is also a special biomass characterized by high proportion of proteins and fatty acids, which will lead to a different hydrolysis result. In this work, TW was hydrolyzed by hot compressed water below 390 degrees C in a batch reactor heated by a salt bath. Four parameters including water density, reaction time, the ratio of TW to water and reaction temperature were investigated. Results showed that CO2 was the major component of the produced gas, a measurable fraction of H-2 was produced above 300 degrees C and 65-75% or more of TW can be transformed into water-soluble fraction. It was found that the influence of the treatment temperature on TW conversion was the most significant. Based on the product distribution (gases, water-insolubles, oils, and water-solubles) along with temperature, a four-stage hydrothermal conversion mechanism was put forward in macroscopic view. In combination with the evolution of gas composition and infrared spectrum, the understanding about the conversion of TW in hot compressed water was further improved. (C) 2011 Elsevier Ltd. All rights reserved.
KeywordTofu Waste Protein-containing Biomass Fat-containing Biomass Hot Compressed Water Hydrothermal Process Mechanism Fatty-acid Esters Supercritical Water Subcritical Water Hydrothermal Gasification Hydrogen-production High-temperature Amino-acids Edible Oils Kinetics Biomass
Indexed ByCPCI
Document Type会议论文
Recommended Citation
GB/T 7714
Tian, Y. J.,Kumabe, K.,Matsumoto, K.,et al. Hydrolysis behavior of tofu waste in hot compressed water[C],2012:112-119.
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