发明申请
- 专利标题: Integrated SDA and ebullated-bed process
- 专利标题(中): 综合SDA和沸腾床过程
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申请号: US11005062申请日: 2004-12-06
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公开(公告)号: US20060118463A1公开(公告)日: 2006-06-08
- 发明人: James Colyar , Stephane Kressmann , Christophe Gueret
- 申请人: James Colyar , Stephane Kressmann , Christophe Gueret
- 主分类号: C10G67/04
- IPC分类号: C10G67/04
摘要:
This invention relates to a novel integrated method for economically processing vacuum residue from heavy crude oils. This is accomplished by utilizing a solvent deasphalter (SDA) in the first step of the process with a C3/C4/C5 solvent such that the DAO product can thereafter be processed in a classic fixed-bed hydrotreater or hydrocracker. The SDA feed also includes recycled stripper bottoms containing unconverted residue/asphaltenes from a downstream steam stripper unit. The asphaltenes from the SDA are sent to an ebullated-bed reactor for conversion of the residue and asphaltenes. Residue conversion in the range of 60-80% is achieved and asphaltene conversion is in the range of 50-70%. The overall residue conversion, with the DAO product considered non-residue, is in the range of 80 W %-90 W % and significantly higher than could be achieved without utilizing the present invention.
公开/授权文献
- US07279090B2 Integrated SDA and ebullated-bed process 公开/授权日:2007-10-09
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