Implications on Feedstock Processing and Safety Issues for Semi-Batch Operations in Supercritical Water Gasification of Biomass

Biomass with a large amount of moisture is well-suited to be processed by supercritical water gasification, SCWG. The precipitation inorganics, together char formation and re-polymerization, can cause reactor plugging stop the process operations. When occurs, sudden injections relatively mass quantities take place, influencing flow dynamics significantly in process. Reactor phenomenon very well observed during SCWG industrial feedstock, which hinders scale-up initiatives, it seldom studied precision literature. present study provides an accurate evaluation continuous tubular event water. An interpretation results regarding properties at conditions contributes comprehending heat transfer when occurs. Experiments are then compared biomass sample aiming give key insights into fluid mechanisms that could help develop operational control strategies increase reliability In addition, simplified model presented assess effect material integrity on burst-event likelihood, states safe operate, 250 bar 610 °C, reactors made 0.22 wall thickness-to-diameter ratio Inconel-625 superficial microfractures smaller than 30 µm. We also suggest improvement opportunities for safety operation mode.