LOW-TEMPERATURE CARBONIZATION/COMBUSTION PROCESS AND LOW-TEMPERATURE CARBONIZATION/COMBUSTION PLANT WITH PRESSURE CONTROL

摘要

A low-temperature carbonization/combustion process is carried out in a low-temperature carbonization/combustion plant with pressure control that includes a pyrolysis drum to which waste is delivered. Low-temperature carbonization gas generated there is passed to a combustion chamber. Flue gas produced there is fed through a cooling device and a gas compressor to a stack. With the aid of a control device, the speed of rotation of the gas compressor is controlled in relation to the pressure in the gas path between the pyrolysis drum and the gas compressor in such a way that when the pressure decreases, the speed of rotation is decreased. Preferably, an additional gas compressor is connected in series with the gas compressor and the speed of rotation of the additional gas compressor is appropriately controlled. An additional pyrolysis drum can also be provided.