How are VaporSep membranes packaged?
VaporSep membranes are manufactured as flat sheets and rolled into spiral-wound modules. The feed gas enters the module and flows between the membrane sheets. Spacers on the feed side and the permeate side of the membrane sheets create flow channels. The hydrocarbon vapor that passes preferentially through the membrane flows inward to a central permeate collection pipe. The light gas (nitrogen, hydrogen or methane) is rejected by the membrane and exits as the residue.
Spiral-wound membrane module
Modules are 3 feet long and 4 to 8 inches in diameter. As many as 4 modules are placed in pressure vessels designed to meet local standards (ASME, etc). To meet the needs of a particular application, modules are configured in series and parallel flow combinations.
