What separation technique would be the most appropriate in separating butane from the LPG mixture?

Question

One variety of LPG contains primarily butane and several other components present in small concentration like butylene and ethanethiol. Supposed it is desired to separate butane from the mixture, what separation technique would be the most appropriate to use?.. Kindly ellaborate höw..Ü

Answer 1

I would think that distillation would be the most straightforward approach, taking advantage of differences in boiling point between the various components.