Decontamination and utilisation of waste material - by adding agent to material before gasification.

摘要

Decontamination and utilisation of finely ground residues from solid bed gasification comprises, before gasifying a solid waste material and/or solid fuel and/or agglomerate of finely ground waste material and finely ground fuel is mixed with the finely ground waste material so that the gasifying material mixt. has a calorific value of more than 2 MJ/kg and inert fillers are added to the mixt. up to 60% of the fillers having a grain size of 5-80mm. The differential pressure in the solid bed charge at a gasifying agent amt. of 1000-5000 m3i.N/hm2 reactor cross-section is adjusted to less than 8 kPa; or adjusted to less than 8 kPa using 10-70% inert fillers. ADVANTAGE - A wide range of chemical impurities and pollutants can be removed.