SEPARATING AND COLLECTING METHOD FOR COMMON PRODUCT OF MONONUCLEAR AROMATIC ARENE AND OF MULTINUCLEAR AROMATIC ARENE BEING GENERATED IN HYDROCARBON DEHYDROGENATION REACTIVE ZONE

摘要

Method the present invention relates to what is generated in hydrocarbon hydrogen dehydrogenation zone, about processing core aromatic compound (PNA). Method of the invention is, the outer surplus being discharged in hydrocarbon hydrogen dehydrogenation region is mixed with the class that recirculates contained by the anti-fragrant compounds of group (MNA) of core, the mixture for generating it is contacted with MNA and PNA, and the anti-fragrant compounds of group of the core that is in contact with it and multicore direction obtain the hydrocarbon of hydrogenation and the hydrocarbon of dehydrogenation Mars this means that reduce the concentration of its compound. Being contacted using adsorbent with hydrogen High Temperature Gas abundant for the anti-fragrant compounds of group of the core recycled from absorption phase and the anti-fragrant compounds of group of multicore, is at least recycled a part for MNA and PNA, makes its recovery adsorbent. Then the hydrogen natural gas rich in of the MNA and PNA that contain are the burp of MNA and separating containing propylhomoserin for PNA. Then, the burp recycling at least contained a part of MNA provides a good solution in mix stages, to PNA processing problems.