Gasification of Spent Grains in Supercritical Water - Experimental Results

A. Möbius, B. Ostmann, N. Boukis & J. Fischer
175kWth steam production from 3.6 ton/day spent mushroom substrate with high concentration of ash and nitrogen was demonstrated employing a drier, a pelletiser, a downdraft fixed-bed gasifier, a producer gas fired furnace and a heat recovery steam generator. Since load following operation at weekly start and stop cycle will be required in the practical use in mushroom industry, a 100 hours test was performed both at part load and at full load to examine the...