A membrane module comprising an outer casing having an interior region, a plurality of hollow fiber membranes extending through at least a portion of the interior region, and having exterior surfaces and inner hollow regions, where the inner hollow regions are configured to provide flow paths for a distillate...http://www.google.es/patents/US7871520?utm_source=gb-gplus-sharePatente US7871520 - High-temperature membrane distillation
