WO2007080169-A2  KOSARAJU P ET AL: "Hollow fiber membrane contactor based CO2 absorption-stripping using novel solvents and membranes" IND. ENG. CHEM. RES.; INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH MAR 2 2005, vol. 44, no. 5, 2 March 2005 (2005-03-02), pages 1250-1258, XP002436869;  PODDAR T K ET AL: "A hybrid of vapor permeation and membrane-based absorption-stripping for VOC removal and recovery from gaseous emissions" JOURNAL OF MEMBRANE SCIENCE, vol. 132, no. 2, 3 September 1997 (1997-09-03), pages 229-233, XP004087036 ELSEVIER SCIENTIFIC PUBL.COMPANY. AMSTERDAM, NL ISSN: 0376-7388;  R. RAUTENBACH AND K. WELSCH: "Treatment of landfill gas by gas permeation - pilot plant results and comparison to alternatives" DESALINATION, vol. 90, no. 1 -3, 1993, pages 193-207, XP008065432 ELSEVIER, AMSTERDAM, NL ISSN: 0011-9164 cited in the applicationEP1811011-A1  RAUTENBACH R; WELSCH K: 'Treatment of landfill gas by gas permeation - pilot plant results and comparison to alternatives' DESALINATION vol. 90, no. 1-3, 1993, pages 193 - 207;  RAUTENBACH: "TREATMENT" DESALINATION, ELSEVIER, AMSTERDAM, NL, vol. 90, no. 1 - 3, 1993, pages 193-207, XP008065432 ISSN: 0011-9164WO2007080169-A3  R. RAUTENBACH AND K. WELSCH: "Treatment of landfill gas by gas permeation - pilot plant results and comparison to alternatives" DESALINATION, vol. 90, no. 1 -3, 1993, pages 193-207, XP008065432 ELSEVIER, AMSTERDAM, NL ISSN: 0011-9164 cited in the application;  KOSARAJU P ET AL: "Hollow fiber membrane contactor based CO2 absorption-stripping using novel solvents and membranes" IND. ENG. CHEM. RES.; INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH MAR 2 2005, vol. 44, no. 5, 2 March 2005 (2005-03-02), pages 1250-1258, XP002436869;  PODDAR T K ET AL: "A hybrid of vapor permeation and membrane-based absorption-stripping for VOC removal and recovery from gaseous emissions" JOURNAL OF MEMBRANE SCIENCE, vol. 132, no. 2, 3 September 1997 (1997-09-03), pages 229-233, XP004087036 ELSEVIER SCIENTIFIC PUBL.COMPANY. AMSTERDAM, NL ISSN: 0376-7388EP1979446-B1  R. RAUTENBACH AND K. WELSCH: "Treatment of landfill gas by gas permeation - pilot plant results and comparison to alternatives" DESALINATION, vol. 90, no. 1 -3, 1993, pages 193-207, XP008065432 ELSEVIER, AMSTERDAM, NL ISSN: 0011-9164 cited in the application;  KOSARAJU P ET AL: "Hollow fiber membrane contactor based CO2 absorption-stripping using novel solvents and membranes" IND. ENG. CHEM. RES.; INDUSTRIAL AND ENGINEERING CHEMISTRY RESEARCH MAR 2 2005, vol. 44, no. 5, 2 March 2005 (2005-03-02), pages 1250-1258, XP002436869;  PODDAR T K ET AL: "A hybrid of vapor permeation and membrane-based absorption-stripping for VOC removal and recovery from gaseous emissions" JOURNAL OF MEMBRANE SCIENCE, vol. 132, no. 2, 3 September 1997 (1997-09-03), pages 229-233, XP004087036 ELSEVIER SCIENTIFIC PUBL.COMPANY. AMSTERDAM, NL ISSN: 0376-7388