Process for gasification and production of by-product superheated steam

摘要: Coal or other high ash containing carbonaceous solid fuel is reacted with a free-oxygen gas, without temperature moderator, in down-flow partial oxidation gas generator to produce stream of raw synthesis reducing gas. A large portion the combustion residue, i.e. molten slag and/or particulate solids that entrained down-flowing generated removed by gravity when passed through diversion chamber. The main leaving chamber side outlet passes upward separation zone, optionally including gas-gas quench cooling, cyclones, filters, impingement separators, combinations thereof. Next, most sensible heat recovered indirect exchange boiler feed water and steam. Saturated superheated steam are produced. In cooling hot substantially reduced content serially tubes two more communicating shell-and-straight fire tube coolers. steam, which produced one, said coolers, another