Molecular gate removes nitrogen from gas

A new process, using a patented adsorbent material, recovers nitrogen from natural gas at locations that previously were uneconomical because of their low producing rates, says developer Engelhard Corp., Iselin, NJ.Engelhard says its process, called a "molecular gate," is economical at flow rates as low as 5 MMcfd.First field test The molecular-gate process removes nitrogen from natural gas produced by a well in Colorado (Fig. 1).Click here to enlarge imageEngelhard installed its first "semicommercial" molecular gate in August 2000 on a Tom Brown Inc. lease in the Hamilton Creek field, San Miguel County, Colo. (Fig. 1). The system is designed to reduce the nitrogen content in the natura...

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