by hydropyrolysis or destructive steam gasification, e.g. using water and heat or supercritical water, to effect chemical change

Full Title

Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances (consuming noxious gases by combustion F23G7/06) > by hydropyrolysis or destructive steam gasification, e.g. using water and heat or supercritical water, to effect chemical change