发明名称 |
METHOD FOR REMOVING A NITROGEN OXIDE FROM A GAS |
摘要 |
The invention pertains to a method and an apparatus for removing a nitrogen oxide (NOx) from a gas by bringing the gas into contact with a scrub liquid in a scrubber for converting the nitrogen oxide into molecular nitrogen (N2) wherein the scrub liquid comprises a metal ion chelate and a biomass, after which at least a portion of the scrub liquid is subjected to a membrane separation process for separating at least part of the metal ion chelate, and the biomass and other solidified components, from dissolved components, wherein the membrane separation process comprises: a) filtering at least a portion of the scrub liquid using a first membrane capable of permeating the metal ion chelate to provide a first retentate liquid comprising the biomass and other solidified components, and a first permeate liquid comprising at least part of the metal ion chelate and dissolved components, and b) nanofiltering the first permeate liquid to give a second retentate liquid comprising the metal ion chelate and a second permeate liquid comprising dissolved components, and c) recycling at least part of the second retentate liquid to the scrubber.
|
申请公布号 |
WO03084645(A1) |
申请公布日期 |
2003.10.16 |
申请号 |
WO2003EP03241 |
申请日期 |
2003.03.25 |
申请人 |
AKZO NOBEL N.V.;NIEUWENHUIZEN, PETER, JAN;FRANK, MARCO, JOHANNES, WILHELMUS;BARGEMAN, GERRALD |
发明人 |
NIEUWENHUIZEN, PETER, JAN;FRANK, MARCO, JOHANNES, WILHELMUS;BARGEMAN, GERRALD |
分类号 |
B01D53/56;B01D53/60;B01D53/64;B01D53/73;B01D53/77;B01D53/84;B01D61/02;B01D61/14;B01D71/34;B01D71/42;B01D71/68;(IPC1-7):B01D53/60 |
主分类号 |
B01D53/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|