48102 20210121114508.0 doi 10.1016/j.phpro.2015.06.028 sideral 88336 ART-2015-88336 eng (orcid)0000-0001-7659-3963 Lozano Bernal, María Pilar Universidad de Zaragoza Purification of recovered helium with low level of impurities: evaluation of two different methods 2015 Access copy available to the general public Unrestricted Helium gas coming from low temperature experimental systems is recovered to avoid losses of this scarce gas on Earth. Once this helium gas has been recovered and before its liquefaction, the impurities contained should be removed. It is possible to achieve a low level of impurities by using the proper materials and procedures on the road to helium recovery. A comparison of two different methods applied for the purification of recovered helium with low level of impurities is reported in this paper. One method is the use of liquid nitrogen traps and the other one is the application of a purification system based on getter materials. The cleaning efficiency has been probed experimentally for both methods through the analysis of the purified He gas. The evaluation covers the life time between regenerations, the everyday care as well as the long term, the energy consumption, the initial investment besides the cost of maintenance of both methods. info:eu-repo/grantAgreement/ES/MINECO/IPT-2012-0442-420000 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 0.262 2015 Physics and Astronomy (miscellaneous) 2015 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0002-5022-5094 Gabal Lanau, Miguel (orcid)0000-0002-7742-9329 Sesé Monclús, Javier Universidad de Zaragoza (orcid)0000-0001-9897-6527 Pina Iritia, Maria Pilar Universidad de Zaragoza Rillo Millan, Conrado 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 67 (2015), 158-162 Physics procedia 1875-3892 356224 http://zaguan.unizar.es/record/48102/files/texto_completo.pdf Versión publicada 7019 http://zaguan.unizar.es/record/48102/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:48102 articulos driver 2021-01-21-10:55:33 ARTICLE