||Liejin Guo, Yunan Chen and Jiarong Yin/《Application of Hydrothermal Reactions to Biomass Conversion》—Organic Waste Gasification in Near- and Super-Critical Water/Springer/2013
The treatment and utilization of organic wastes is important. The governments have invested huge funds and made great efforts on the research. Among the various options, the near- and supercritical water gasification (NSCWG) is a most promising method. The main advantage is that organic wastes, containing a high water content of 80 wt% or more, could be converted to other substances without drying. This chapter reviews the current status of NSCWG of organic wastes. The reaction systems are introduced first. Then, the theoretical values of gas yields are predicted by thermodynamics analysis and the experimental results without catalysts are investigated extensively. In order to better understand and improve the reactions, the reaction processes, the application of catalysts, and the analysis of kinetics are also discussed.