发明授权
- 专利标题: Simulated moving bed separation process and device
- 专利标题(中): 模拟移动床分离过程及装置
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申请号: US11136729申请日: 2005-05-25
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公开(公告)号: US07473368B2公开(公告)日: 2009-01-06
- 发明人: Gérard Hotier
- 申请人: Gérard Hotier
- 申请人地址: FR Rueil Malmaison Cedex
- 专利权人: Institut Francais du Petrole
- 当前专利权人: Institut Francais du Petrole
- 当前专利权人地址: FR Rueil Malmaison Cedex
- 代理机构: Millen, White, Zelano & Branigan, P.C.
- 优先权: FR0405645 20040525
- 主分类号: B01D15/00
- IPC分类号: B01D15/00
摘要:
A simulated moving bed (SMB) separation device comprises at least one column, beds of adsorbent arranged in this column, trays Pi with a chamber Ci for distribution and extraction of fluids, a multi-way rotary valve for the distribution of the fluids feeding or leaving said trays, and junction lines Li between this valve and said trays. The SMB device also comprises a plurality of bypass lines Li,i+1 between adjacent lines, these bypasses being outside the multi-way rotary valve and situated in proximity to this valve, for the circulation of rinsing liquids with a small or zero concentration gradient. The invention makes it possible to use all types of distribution and extraction trays and all types of adsorbent loading, while preserving a high level of product purity. Application of the separation devices is in particular to the separation of paraxylene or metaxylene from a C8 aromatic charge.
公开/授权文献
- US20050269268A1 Simulated moving bed separation process and device 公开/授权日:2005-12-08