Cyclonic separation devices and fluid stream separating apparatuses incorporating cyclonic separation devices are described. A cyclonic separation device may include an exterior housing having an exterior cylindrical portion and an exterior conical portion extending from the exterior cylindrical portion and an interior housing having an interior cylindrical portion and an interior conical portion extending from the interior cylindrical portion. The interior housing is positioned relative to the exterior housing to form a circulating chamber. The cyclonic separation device also includes a fluid inlet coupled to the exterior housing, where the fluid inlet positioned to inject a fluid stream into the circulating chamber at an orientation generally tangential to the cylindrical portions of the exterior housing and the interior housing. The cyclonic separation device further includes a low-density outlet coupled to at least one of the exterior conical portion or the interior conical portion.