500 hours producing bio-SNG from MILENA gasification using the ESME system : ECN system for MEthanantion (ESME): a novel technology succesfully proven / L.P.L.M. Rabou, G. Aranda AlmansaBlue Bird final report : TEBE115001 : public version / contributions: G. Aranda Almansa, A. Bos, L.E. Fryda, I. van Zandvoort, J.K. van der Waal, G. van Klink, J. van Doorn, C.M. LokGreen Birds project : final report / author(s) G. Aranda Almansa, A. Bos, L.P.L.M. Rabou, B.J. Vreugdenhil, J.K. van der Waal, I. van Zandvoort, J. van Doorn