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Canada’s natural gas industry is always looking for new and innovative ways to reduce emissions from construction operations and during production.

CAPTURING VENT GAS TURNS EMISSIONS INTO FUEL

In 2012, with funding from its Environmental Innovation Fund and the Climate Change and Emissions Management Corporation (CCEMC), natural gas producer Encana initiated a three-year program to install vent gas capture systems at 57 natural gas compressors in southern Alberta. Each system captured fuel gas that would be vented to the atmosphere as part of normal operations, and redirected it into the compressor engine’s air intake to help fuel the engine. The technology was developed by REM Technology Inc., a division of Spartan Controls, based in Calgary.

By redirecting the gas to fuel the engines, about 175 million standard cubic feet of sales gas was recovered per year and emissions were reduced by more than 69,000 tonnes of CO2 equivalent annually, generating $1 million yearly in carbon offsets. 

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