Patent EA-004393-B1 (EA)
Title: Method for processing rubber wastes and arrangement therefor
Inventor: ROZHNOVSKY IGOR ANTONOVICH
IPC: C10G1/10
Filed: 2002-12-17
Abstract: 1. A method for processing rubber wastes by pyrolysis in heat carrier medium, comprising heating of a reactor to reach the heat carrier temperature in the reactor working chamber between 400 to 700 degree C, loading rubber wastes in the reactor, heat insulation of the reactor chamber, pyrolysis of said rubber wastes in medium of superheated water vapor, separation of the pyrolysis products into gaseous and solid phases with further recovery the gaseous product by condensing the liquid phase product, discharging the gaseous phase for reuse in the pyrolysis process, pouring off the liquid phase product and discharging the solid phase product, characterized in that the heat carrier is further supplied directly into the reactor chamber, prior to loading rubber wastes are placed on a transport means moved into the loading chamber and after pyrolysis into a cooling chamber where the solid phase is cooled and further from the cooling chamber for unloading, wherein prior to pyrolysis the reactor chamber is additionally sealed, the pyrolysis product is collected and fed for condensing with subsequent separation into gaseous and liquid phases. 2. The method according to claim 1, characterized in that the heat carrier is supplied to at least one bottom zones of the rector chamber. 3. The method according to claim 1 or 2, characterized in that vapor at 280 to 750 degree C is used as the heat carrier. 4. The method according to any one of claims 1 to 3, characterized in that water is supplied into the reactor chamber for cooling solid phase of the pyrolysis product. 5. An arrangement for processing rubber wastes, comprising a cylindrical heat reactor, a working chamber, means for loading rubber wastes arranged upstream the working chamber, means for recovery liquid phase of the pyrolysis product, means for recovery solid phase of the pyrolysis product, arranged downstream the working chamber, and heat means interacting with the reactor at a certain area of the reactor body, the reactor is equipped with means for accumulating and distributing heat energy over the chamber surface, said means is arranged on the outer reactor body surface, means for recovery liquid phase of the pyrolysis product is designed as a cooler, a condenser of gaseous phase and a separator of condensate into gaseous and liquid phases, characterized in that further comprises means for continuous supply of heat energy into the reactor chamber designed as piping, at least one portion of which is adapted to direct contact with the heating device and has an outlet to the reactor chamber, an inlet is provided in a corresponding zone of the reactor chamber, the shape and the size of which corresponds to the shape and size of the piping cross section, the piping portion entering into the chamber is provided with means of uniform distribution of heat over the chamber volume, the reactor further comprises a loading chamber and a cooling chamber equipped with means foe supplying cooling medium, arranged respectively upstream and downstream of the working chamber adapted to be separated from the working chamber by sealing means, loading means of rubber wastes and means for recovery of solid phase of the pyrolysis product are transport means travelling on guides, the reactor body in the zone of the working chamber is adjacent to the heating means, and the reactor is mounted so that its axis is horizontal. 6. The arrangement according to claim 6, characterized in that the piping portion entering into the chamber comprises at least one tapping, each of piping branches is positioned horizontally in the bottom zone of the working chamber and is provided with at least one pair of outlets as means for uniform vapor distribution over the working chamber volume the outlets are adapted to discharge vapor jets at about 45 degree and at about 90 degree to each other. 7. The arrangement according to any one claims 5 or 6, characterized in that means for cooling medium delivery is designed as at least one sprayer. 8. The arrangement according to any one claims 5 to 7, characterized in that the transport means is designed as transport trolley. 9. The arrangement according to claim 8, characterized in that the transport trolley comprises 4 groups of transport trolleys.