Hydrothermal reactions, which generally can be defined as reactions in the presence of aqueous solvents under high temperature and pressure, have played an important role in the formation of fossil fuels and Earth's carbon cycle. If humans could simulate the conditions of high temperature and pressure underground, then, it should quickly turn waste and biomass into fuels and chemicals, reaching improve Earth' carbon cycle. With this in mind, we have conducted a series of researches of application of hydrothermal reactions to the conversion of biomass and CO2 into fuels and chemicals. This paper gives an overview of recent advances in our research on the hydrothermal conversion of various biomasses into value-added products, specifically on the production of acetic acid, lactic acid and formic acid from carbohydrates and lignocellulosic biomasses, as well as glycerine, which is a by-product of biodiesel production. A new technology for converting CO2 into chemicals with biomass or organic waste as a reductant is also presented. Our results demonstrate the hydrothermal process possesses a high potential for rapidly and efficiently converting a wide range of biomass and CO2 into value-added products and fuels.
ASJC Scopus subject areas
- Chemical Engineering(all)