Abstract: Disclosed are a hydrogen tank and a method of operating the same. The hydrogen tank includes a tank vessel configured with an enclosed interior space for storing an admixture of carbon dioxide and gaseous hydrogen; and a tank port configured to fluidly contact the interior space of the tank vessel and including a semipermeable membrane, which is configured substantially permeable for the gaseous hydrogen and substantially impermeable for the carbon dioxide and is arranged to seal the tank vessel against the outside. The gaseous hydrogen can enter and leave the tank vessel through the tank port via the semipermeable membrane but carbon dioxide is kept in the tank vessel.

Abstract: A device for printing a web moving in a direction (YB), wherein ink jets print on the web a printing width across its direction (YB) of advancement while traversing a printing station. The printing station includes one or more printer heads that produce ink jets over a footprint width which is narrower than the intended printing width over the web. One or more shaping elements bestow on the web traversing the printing station a V-shape so that the web is at least locally oriented oblique to the linear array of nozzles that project the ink. The ink from the printer head(s) is thus printed over the intended printing width of the web.

Abstract: A device for printing a web moving in a direction (YB), wherein ink jets print on the web a printing width across its direction (YB) of advancement while traversing a printing station. The printing station includes one or more printer heads that produce ink jets over a footprint width which is narrower than the intended printing width over the web. One or more shaping elements bestow on the web traversing the printing station a V-shape so that the web is at least locally oriented oblique to the linear array of nozzles that project the ink. The ink from the printer head(s) is thus printed over the intended printing width of the web.