size if necessary the catalyst comes from feed line 113 the ground municipal solid wastes wsw pass through msw feed line 115 then the msw grinder 10 via the msw feed line 114 into pyrolyzer 5 finally the solid contents from sludge solids removers 17 and 18 together with the solids from the filter 19 via line 119 are also fed into pyrolyzer 5 through line 120 pyrolysis of coal msw and solid contents of municipal sewage sludge mss coal ground msw sludge solid contents and the catalyst are all pyrolyzed in 5 alternatively the catalyst can be fed into the integrated gasifier 9 directly instead of feeding into the pyrolyzer 5 indirectly the heat required by pyrolysis is supplied by burning pyrolyzed gases from the storage 1 via line 152 or by burning a part of the product gas coming from gas storage 6 through lines 107 and 104 the pyrolyzer is a part of a kiln or a furnace not shown the pyrolyzed residues are continuously or intermittently flow into the feed mixture bin 4 from which the pyrolyzed residues are fed into the integrated gasifier 9 via lines 106 and 111 by means of a screw conveyor 4 a compressed co 2 from line 155 which leads from the co 2 compressor 23 is fed into the gasifier the carbon dioxide reacts with lime or calcined dolomite which is recycled into the gasifier via stream 154 from the air preheater 8 from time to time the system is replenished with fresh lime or calcined dolomite through line 110 the required steam comes from the waste heat boiler 15 via.