Method for purifying a dust-containing hot gas, more particularly coal gas produced from coal fed into a steel or iron bath reactor

摘要

Coal gas produced in an iron bath reactor during the gasification of coal is first cooled down in a first cooling step to a temperature of, preferably, 300 C., and is subsequently purified at this temperature in a first electrofilter, then cooled down in a second cooling step to a temperature of, preferably 50 C. and, finally, purified at this temperature in a second electrofilter.