| EPA cites 2 natural
gas processors for air violations at Mich. plant Oct. 5 -- Two natural gas processors face federal action for alleged clean air violations at a Manistee, Mich., sour gas processing plant. The U.S. Environmental Protection Agency has cited Shell Exploration & Production Co. and Merit Energy Co. for the alleged violations. The agency claims from 1996 through 2000 Shell modified the plant, which significantly increased sulfur dioxide emissions, without getting a permit. Shell also allegedly did not complete a required sulfur dioxide impact analysis before modifying the plant. Merit Energy is the current plant owner. Sour gas is natural gas that contains hydrogen sulfide and other contaminants. Removing the hydrogen sulfide produces sulfur dioxide as a byproduct.
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