Apparatus for recovering energy from pyrolyzable, carbonaceous waste materials of varying composition

Apparatus for recovering energy from pyrolyzable, carbonaceous waste materials of varying composition, comprising:

• at least one rotary tube reactor having means to receive the waste materials and means for producing as products, a low temperature carbonization gas and a pyrolytic coke at a reaction temperature of above 200.degree. C., said reactor further including means to discharge said carbonization gas and means to discharge said coke;
• means to clean the carbonization gas, said means being connected subsequent to the rotary tube reactor;
• combustion means to combust the cleaned carbonization gas exiting from said cleaning means;
• a fluidized bed or swirling layer gasifier which has supplied thereto an oxygen-containing gasifying agent, the pyrolytic coke, and, optionally, waste materials, and from which exit a hot gas, having a temperature of between 400.degree. and 1000.degree. to be used for combustion in said combustion means, and an inert ash;
• and a separate cleaning or purification stage for the hot gas from the fluidized bed or swirling layer gasifier.