Abstract: A method, device and processing system for a G-ZED “Gaseous Zero Emissions Device” for the inspection, detection and management of gaseous permeation through composite pipe structures, termed Reinforced Thermoplastic Pipe, non-metallic or partially metallic composite pipelines and conduits, or cured type structure, and instrumented with inventive monitoring, inspection and communication systems, prefabricated, and delivered for installation, in existing lined or free-standing pipes with minimal disturbance to the operation of such pipelines. The device has a cylindrical gas chamber surrounding a portion of a continuous multilayered composite pipe to capture permeated gas directed into the gas chamber and then to a compression chamber for pressure separation, reclamation and reinjection into the pipeline gas flow or to storage.