![减少加氢裂化单元中的重质多环芳香族化合物的方法和装置](/CN/2015/8/14/images/201580070402.jpg)
基本信息:
- 专利标题: 减少加氢裂化单元中的重质多环芳香族化合物的方法和装置
- 专利标题(英):Method and device for reducing heavy polycyclic aromatic compounds in hydrocracking units
- 申请号:CN201580070402.1 申请日:2015-12-17
- 公开(公告)号:CN107257842A 公开(公告)日:2017-10-17
- 发明人: T.索热 , R.冈萨雷斯拉马萨雷斯 , J.博纳多 , J.弗雷孔
- 申请人: 阿克森斯公司
- 申请人地址: 法国吕埃-马迈松
- 专利权人: 阿克森斯公司
- 当前专利权人: 阿克森斯公司
- 当前专利权人地址: 法国吕埃-马迈松
- 代理机构: 中国专利代理(香港)有限公司
- 代理人: 刘维升; 黄念
- 优先权: 1463096 20141222 FR
- 国际申请: PCT/EP2015/080220 2015.12.17
- 国际公布: WO2016/102301 FR 2016.06.30
- 进入国家日期: 2017-06-22
- 主分类号: C10G47/00
- IPC分类号: C10G47/00 ; C10G7/00
The invention relates to a method and an apparatus that make it possible to reduce the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycling loop of hydrocracking units comprising a fractioning column. According to the method of the invention, a stream is drawn off from the fractioning column in the region of at least one tray located between the feed tray and the draw-off tray for the heaviest distillate fraction, the stream is stripped in an external stripping step by means of a stripping gas in the presence of a portion of the residue. The separated gaseous effluent is recycled in the column, advantageously as the stripping gas, and the liquid fraction is recycled in the hydrocracking step, a residue is purged in the stripping step.
公开/授权文献:
- CN107257842B 减少加氢裂化单元中的重质多环芳香族化合物的方法和装置 公开/授权日:2020-08-28