发明申请
- 专利标题: Apparatus and method for osmotic membrane distillation
- 专利标题(中): 渗透膜蒸馏装置及方法
-
申请号: US11141490申请日: 2005-06-01
-
公开(公告)号: US20050269266A1公开(公告)日: 2005-12-08
- 发明人: Zbigniew Twardowski , Thomas Drackett , Dmitri Bessarabov , Peter Fetissoff
- 申请人: Zbigniew Twardowski , Thomas Drackett , Dmitri Bessarabov , Peter Fetissoff
- 专利权人: AKER KVAERNER CANADA INC.
- 当前专利权人: AKER KVAERNER CANADA INC.
- 优先权: CA2,469,769 20040604
- 主分类号: B01D61/36
- IPC分类号: B01D61/36 ; B01D63/00 ; C01B17/88 ; C25B15/08
摘要:
A method of enhancing the concentration of a first inorganic compound in a first aqueous solution of a first process of a heavy chemical plant, the method comprising (a) feeding the first solution having the first compound at a first concentration and a first water vapor pressure to an osmotic membrane distillation means comprising a hydrophobic, gas and water vapor permeable membrane separating (i) a first chamber for receiving the first solution, from (ii) a second chamber for receiving a receiver feed aqueous solution having a second water vapor pressure lower than the first water vapor pressure; (b) feeding the receiver aqueous feed solution to the second chamber as to effect transfer of water vapor through the membrane from the first chamber to the second chamber, and to produce (i) a resultant first solution having a second concentration of the first compound greater than the first concentration and (ii) a diluted receiver feed aqueous solution; and (c) collecting the resultant first solution. The apparatus and method are of particular value in electrolytic haloalkali production plants in offering reduced capital and operating re-concentration and dilution costs.
公开/授权文献
- US07361276B2 Apparatus and method for osmotic membrane distillation 公开/授权日:2008-04-22