-
公开(公告)号:US09796937B2
公开(公告)日:2017-10-24
申请号:US14679075
申请日:2015-04-06
摘要: The present invention concerns a process for the production of light olefins and BTX using a catalytic cracking unit, NCC, processing a naphtha type feed, and an aromatics complex. It can be used to exploit the synergies between these two units. The thermal balance of the NCC, which is intrinsically deficient in coke, is resolved by the optimal use of heat from the reforming furnaces in order to preheat the feed for the NCC, and by introducing at least a portion of the raffinate obtained from the aromatics complex as a mixture with the naphtha.
-
公开(公告)号:US09650579B2
公开(公告)日:2017-05-16
申请号:US14680542
申请日:2015-04-07
CPC分类号: C10G63/04 , C10G11/18 , C10G11/182 , C10G35/00 , C10G69/04 , C10G69/08 , C10G69/126 , C10G2300/1044 , C10G2300/1059 , C10G2300/1074 , C10G2300/1077 , C10G2400/20 , C10G2400/30
摘要: The present invention relates to the FCC units processing heavy feedstocks enriched with hydrogen, such as for example a highly hydrotreated VGO, or the unconverted part at the end of hydrocracking this same type of VGO feedstock, feedstocks which have the characteristic of cracking to light olefins such as ethylene and propylene. The integration of an FCC with an aromatic complex allows the recovery by the aromatic complex of the BTX formed in the FCC, and the recovery by the FCC from the flow at the bottom of the column, of heavy aromatics from the aromatic complex.
-