PYROLYSIS GAS TREATING METHOD AND ITS DEVICE FOR HIGHLY HYDROUS ORGANIC MATTER CARBONIZING SYSTEM

PROBLEM TO BE SOLVED: To provide a pyrolysis gas treating device for a highly hydrous organic matter carbonizing system complete combustion accompanied by the reduction of an NOx amount while maintaining a low fuel consumption rate by minimizing the use of assist fuel in combustion in a cracked gas burning furnace for pyrolysis gas after carbonizing in a carbonization furnace. SOLUTION: Cracked gas produced from a highly hydrous organic matter in the carbonization furnace is introduced into the cracked gas burning furnace, a primary input of one part of dry exhaust gas after a drying process is carried out and primary combustion air is supplied to carry out a combustion process in a reducing atmosphere, secondary air is supplied to the combustion gas in the reducing atmosphere to carry out a combustion process in an oxidizing atmosphere, and a secondary input of dry exhaust gas of the combustion gas in the oxidizing atmosphere is carried out to carry out a final combustion process. COPYRIGHT: (C)2007,JPO&INPIT