Carnauba is a bio product, well mostly depending on the purity....either way it aint going to last years and years. But if you are unwilling to lose man card points and toss in the towel you could dump the contents into a mason jar, add in some quick detail spray like a Mothers quick detail with carnauba (that way you know its carnauba friendly), heat it up (leave outside on a hot day, not sure I would take an open flame to it) and you will have the most expensive detail spray ever.
You'll probably need a robust spray nozzle otherwise clogging could be an issue. I guess you'll have to put on your chemist cap on get just the write viscosity that will keep the carnauba in a liquid state which also means you'll have to spray a lot more of it than simply rubbing in a small concentrated amount of paste.