Patent ID: 7740031

Claim:
A gas blending and compressing system comprising: a blender comprising a first inlet chamber configured to receive a first gas, a second inlet chamber configured to receive a second gas, a blending chamber in flow communication with the first inlet chamber and the second inlet chamber configured to blend the first gas and the second gas into a blended gas, a first choking device in flow communication with the first inlet chamber and the blending chamber and a second choking device in flow communication with the second inlet chamber and the blending chamber configured to achieve a blend ratio for the blended gas; a compressor in flow communication with the blender configured to compress the blended gas to a pressure; a storage vessel in flow communication with the compressor configured to store the blended gas; and a control system configured to sense operational parameters of the blender and the compressor, to sense one or more properties of the blended gas, to control the blender and the compressor to maintain the blend ratio and a substantially constant flow rate through the compressor; the control system comprising a sensor configured to sense an intake pressure of the blended gas to the compressor, a controller in signal communication with the sensor configured to control the compressor, a feedback regulator in signal communication with the sensor configured to provide a flow of the blended gas from the storage vessel to the compressor, and a processing unit in flow communication with the compressor configured to test the blended gas from the blender and to signal the controller to shut down the blender and the compressor if the blended gas does not meet standards for the blend ratio.