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公开(公告)号：EP2094376A1
公开(公告)日：2009-09-02
申请号：EP07834654.1
申请日：2007-10-31
发明人： HANEMAAIJER, Jan, Hendrik , JANSEN, Albert, Edward , VAN MEDEVOORT, Jolanda , DE JONG, Hans , VAN SONSBEEK, Eric , KOELE, Engelbert Peter Jurrie Jan , ASSINK, Jan Willem
CPC分类号： B01D61/364 , B01D1/0035 , B01D1/0058 , B01D1/2881 , B01D5/0012 , B01D5/006 , B01D5/0072 , B01D63/082 , B01D2313/143 , B01D2313/24 , B01D2313/38 , B01D2319/04 , C02F1/048 , C02F1/447 , C02F2103/08 , Y02A20/128 , Y02A20/131 , Y02A20/212
摘要： The invention provides a method for the purification of a liquid by membrane distillation comprising: - passing a heated vapourising stream of a liquid (retentate stream) through a retentate channel over a porous membrane, whereby vapour of the liquid flows via the pores of the membrane to the other side of said membrane, and - condensing said vapour on the other side of said membrane to give a distillate stream in a distillate channel which distillate is created by passing the heat of condensation (latent heat) towards a condenser surface, said condenser surface forming a non-porous separation between a feed stream of the liquid to be purified and said distillate stream, which feed stream is passed through a feed channel in counter-current with the retentate stream, whereby at least part of the latent heat is transferred via the condenser surface to the feed stream, characterised in that, a positive liquid pressure difference is applied between the retentate stream and the feed stream at the corresponding points of the retentate channel and the feed channel over at least a part of each of the retentate channel and feed channel. The invention further provides an apparatus suitable for use in said method.
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公开(公告)号：EP2094376B1
公开(公告)日：2012-05-30
申请号：EP07834654.1
申请日：2007-10-31
发明人： HANEMAAIJER, Jan, Hendrik , JANSEN, Albert, Edward , VAN MEDEVOORT, Jolanda , DE JONG, Hans , VAN SONSBEEK, Eric , KOELE, Engelbert Peter Jurrie Jan , ASSINK, Jan Willem
CPC分类号： B01D61/364 , B01D1/0035 , B01D1/0058 , B01D1/2881 , B01D5/0012 , B01D5/006 , B01D5/0072 , B01D63/082 , B01D2313/143 , B01D2313/24 , B01D2313/38 , B01D2319/04 , C02F1/048 , C02F1/447 , C02F2103/08 , Y02A20/128 , Y02A20/131 , Y02A20/212
摘要： The invention provides a method for the purification of a liquid by membrane distillation comprising: - passing a heated vapourising stream of a liquid (retentate stream) through a retentate channel over a porous membrane, whereby vapour of the liquid flows via the pores of the membrane to the other side of said membrane, and - condensing said vapour on the other side of said membrane to give a distillate stream in a distillate channel which distillate is created by passing the heat of condensation (latent heat) towards a condenser surface, said condenser surface forming a non-porous separation between a feed stream of the liquid to be purified and said distillate stream, which feed stream is passed through a feed channel in counter-current with the retentate stream, whereby at least part of the latent heat is transferred via the condenser surface to the feed stream, characterised in that, a positive liquid pressure difference is applied between the retentate stream and the feed stream at the corresponding points of the retentate channel and the feed channel over at least a part of each of the retentate channel and feed channel. The invention further provides an apparatus suitable for use in said method.
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