Abstract
Based on non-pollution low-pressure gas explosion technology, the author has successfully established a series of new gas explosion technology such as clean pulping, hemp clean degumming, preparation of humic acid, and low-activity xylo-oligosaccharide from straw and industrialization demonstration. The author broaden gas explosion technology to processing field of food, fruits, vegetables, and other natural materials and to development area of biobased chemicals, material, and energy. Gas explosion technology has been exploited as a common platform technology for biomass refining, but there is no analysis of transfer laws and action mechanism in gas explosion process based on the perspective of biomass feedstock characteristics. This chapter systematically analyzed the influence of raw material parameters, operating parameters, equipment parameters, and product parameters on gas explosion performance. The relationship between the mechanical properties of cell wall and heat and mass transfer, and momentum transfer of gas explosion process in transfer perspective were also analyzed. The relationship between maximum energy dissipation on material of the instantaneous discharge pressure stage and temperature, and moisture content were explored. Additionally, the relationship between discharge port area and material particle size based on the maximum energy dissipation was optimized. Material moisture content, particle size, and discharge area were further taken into gas explosion intensity factor R, and the meaning of gas explosion intensity was enriched. In the view of heat transfer, the energy consumption of the gas explosion process and the relationships between them were analyzed; the effect of initial moisture content, height-to-diameter ratio of gas explosion tank, loading coefficient, and temperature factors on gas explosion energy consumption was systemically observed. Based on the purpose of removing the secondary barrier in cellulose enzymatic hydrolysis, which is brought by pretreatment process, this chapter studied the thermodynamics and kinetic rules of hemicellulose and lignin degradation, generation, and dissolution in gas explosion process.
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Chen, H. (2015). Principle of Gas Explosion Technology. In: Gas Explosion Technology and Biomass Refinery. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-7414-7_2
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DOI: https://doi.org/10.1007/978-94-017-7414-7_2
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