EP 1572323 A1 20050914 - A SYSTEM AND APPARATUS FOR REMOVAL OF UNWANTED SUBSTANCES IN A GAS FLOW
Title (en)
A SYSTEM AND APPARATUS FOR REMOVAL OF UNWANTED SUBSTANCES IN A GAS FLOW
Title (de)
SYSTEM UND VORRICHTUNG ZUM ENTFERNEN VON UNERWÜNSCHTEN STOFFEN IN EINER GASSTRÖMUNG
Title (fr)
SYSTEME ET DISPOSITIF POUR ELIMINER DES SUBSTANCES INDESIRABLES CONTENUES DANS UN FLUX GAZEUX
Publication
Application
Priority
- DK 0300899 W 20031218
- DK PA200201935 A 20021218
Abstract (en)
[origin: WO2004054688A1] The present invention relates to a system and an apparatus for removal of unwanted substances in a gas flow (1) comprising a number of purification modules, each module comprising a hydrophobic membrane (3), a mixing container (10), and a solvent fluid, where the substances in the gas flow (1) are diffused through the hydrophobic membrane (3) and are absorbed in the solvent fluid, and where the purified gas flow (11) is led to either a further purification module or to the surrounding environment, wherein the solvent fluid either is an alkaline solvent fluid or an acid solvent fluid, where said solvent fluids circulate between said hydrophobic membrane (3) and said mixing container (10), and where either concentrated acid or alkaline fluids are added to said solvent fluid in the mixing container (10) in order to maintain a substantially constant pH value in the solvent fluid. The invention furthermore relates to methods for removing ammonium from a biogas process, for cleaning an air flow, and for drying waste.
IPC 1-7
IPC 8 full level
A01K 1/00 (2006.01); B01D 53/14 (2006.01); B01D 53/22 (2006.01)
CPC (source: EP)
A01K 1/0047 (2013.01); B01D 53/1406 (2013.01); B01D 53/229 (2013.01); Y02P 60/22 (2015.11)
Citation (search report)
See references of WO 2004054688A1
Citation (examination)
- R. KLASSEN, A.E.JANSEN: "The Membrane Contactor: Environmental Applications and Possibilities", ENVIRONMENTAL PROGRESS, vol. 20, no. 1, 1 April 2001 (2001-04-01), pages 37 - 42
- K. LI, ET AL.: "Use of asymmetric hollow fibre modules for elimination of H2S from gas stream via a membrane absorption method", CHEMICAL ENGINEERING SCIENCE, vol. 53, no. 6, 1998, pages 1111 - 1119
- J. PAUL, B. KRAUTWURST: "Abluftreinigung mit Mebranreaktoren", CHEMIE INGENIEUR TECHNIK, vol. 73, no. 3, March 2001 (2001-03-01), pages 215 - 217
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004054688 A1 20040701; AU 2003287916 A1 20040709; CA 2558116 A1 20040701; EP 1572323 A1 20050914
DOCDB simple family (application)
DK 0300899 W 20031218; AU 2003287916 A 20031218; CA 2558116 A 20031218; EP 03779756 A 20031218