Abstract: A gas system includes a container, a fitting, a gas tube, adsorbent, and a filter. The container stores gas under pressure. The fitting covers an opening of the container and maintains a seal with the opening of the container. The gas tube is inserted through a bore in the fitting such that a length of a portion of the gas tube inside of the container is at least one half of a length of the container. The portion of the gas tube in the container includes holes. The adsorbent is in a particulate form and adsorbs gas in the container. The filter covers the holes in the portion of the gas tube in the container. The filter permits passage of gas into and out of the gas tube and prevents passage of the adsorbent into the gas tube.

Abstract: An adsorbence-based gas storage system includes a pressure vessel containing a granular gas adsorbent material, for example, an activated carbon or a metal-organic framework. The system may be configured to store natural gas or methanol. The pressure vessel includes a pressure release device, and an inlet/outlet valve for passage of gas into and out of the pressure vessel. A microwave or RF generator is configured to selectively heat the adsorbent material. In one embodiment the generator is connected to the pressure vessel through one or more waveguides, and at one or more locations along the pressure vessel. A sensor, for example, a temperature sensor, monitors the temperature in the pressure vessel. A computing device uses the sensor data to control the generator to selectively heat the adsorbent material.

Abstract: A gas system includes a container, a fitting, a gas tube, adsorbent, and a filter. The container stores gas under pressure. The fitting covers an opening of the container and maintains a seal with the opening of the container. The gas tube is inserted through a bore in the fitting such that a length of a portion of the gas tube inside of the container is at least one half of a length of the container. The portion of the gas tube in the container includes holes. The adsorbent is in a particulate form and adsorbs gas in the container. The filter covers the holes in the portion of the gas tube in the container. The filter permits passage of gas into and out of the gas tube and prevents passage of the adsorbent into the gas tube.