Abstract: A method for regenerating filters, particularly for particulate filters of the FAP or DPF type, with or without sections with catalysts, and an apparatus for performing the method. The method consists in striking the filters with a flow of a process fluid constituted by water vapor or by air to and/or by a mixture of water vapor and air at a process temperature of at least 300° C.

Abstract: A method and an apparatus for cleaning filters contaminated by hot-melting resins and polymers in situ, without removing the filtering elements. The method comprises a preliminary step, during which the circulation of the product to be filtered through the filter to be cleaned is interrupted, and a draining step, during which a pressurized draining fluid is passed through the filter in order to empty the filter of the residual product. A filter cleaning step is then performed during which a cleaning fluid, constituted at least partially by superheated steam, is passed through the filter. The fluids used to clean the filter are then subjected to treatments to eliminate pollutants.

Abstract: Process for cleaning metal machine parts caked with thermoplastic polymers and apparatus for carrying out said process. The process consists in placing the parts caked with polymers inside an autoclave and in striking them with a stream of overheated steam. The stream mixes with the vaporized polymer residues produced by the thermal decomposition and hydrolysis of the polymers that are initially present on the parts and is conveyed outside the autoclave together with the vaporized residues. The stream containing vaporized polymer residues that leaves the autoclave is then subjected to condensation and the pollutants elimination.