METHOD OF PRODUCING CEMENT CLINKER FROM A CEMENT RAW MIX AND CLEAN GAS FROM COAL

摘要

In a method of producing cement clinker from a cement raw mix and clean gas from a hydrocarbon, cement raw mix is preheated in a solids preheater, which cools the product gas exiting a gasifier (1). In the gasifier (1) hot air and steam is mixed with hydrocarbon forming CO and H2. Solids consisting of ash being drained off the bed of the gasifier are added to the cement raw mix. Down s tream the solids preheater (2) carbonaceous residue is filtered out of the reduced gas and fed to the calciner (5) and/or to the kiln (13) as a fuel.