关键词: 催化重整生成油, 加氢, 苯, 混合二甲苯, 脱烯烃, 降本降耗

Abstract: In response to the problems of insufficient refining depth, high yield of heavy component, fast deactivation of clay, and complex processand high energy consumption of xylene hydrogenation system in a 1.0 Mt/a continuous catalytic reforming unit of a petrochemical company, the reformate was treated withthe liquid phase hydrogenation process (FITS process) developed by SINOPEC Changling Company and Hunan Changling Petrochemical Technology Development Co., Ltd.. The process makes use of hydrogen nano-pore dispersion technology to make hydrogen evenly dispersed in the oil phase, and can effectively remove olefins from reformate.The bromine index of benzene product is lessthan 20 mgBr/(100g), and that of mixed xylene product is less than 50 mgBr/(100g). The successful application of FITS process could eliminate clay tank for benzene refining and xylene hydrogenation unit, and greatly reduce the energy consumption and operating costs of aromatics treatment unit.

Key words: reformate, hydrogenation, benzene, mixed xylene, deolefin, cost reduction and consumption reduction