... by 16 parts,which are reactor,Insulationlayer,Desulfurization,deduster,Draft fan,Chimney,Water film cyclone,Condenser,Water tank,Cooling tower( ... optional),Gas recycle system,Oil tank,Gas separate,Waste gas burner,Furnace,Blower,Carbon ... chamber are especially for welding.Vacuum system will prevent oil gas from going back to reactor and causing accidentProfessional ...