Process for obtaining high-quality, non-hygroscopic flame coal from low-quality fuels
DE340553C
Shaft furnace with a cooling chamber connected below for the continuous distillation of solid fuels by means of a circulating stream of hot distillation gases and a method for operating the furnace
DE394196C
Process for the fractional distillation of wood
DE387577C
Process for obtaining tar from bituminous fuels, which is particularly suitable as a briquetting agent
CA217508A
Process of carbonizing solid combustibles
CA230592A
Production of solid coal fuel from watery combustibles
