AN-00335 / ©2010 Micro Motion, Inc. All rights reserved. For more information: www.EmersonProcess.com/solutions/refining www.micromotion.com REFINING Mass-Based Fuel Measurement with Micro Motion ® Coriolis Flowmeters Boosts Combustion Control RESULTS •Reduced risk of NOx emissions excursions •Improved combustion efficiency •Generated an increase in steam production by 25%, to near capacity APPLICATION A refinery in southern California uses fuel gas as the primary combustion fuel in its boilers. As shown in Figure 1, temperature in the combustion chamber was used to control the feed rate of the fuel gas. Air intake was controlled in direct proportion to the gas feed, so that the (volumetric) combustion ratio remained constant. CHALLENGE The composition of the fuel gas, and its energy conte

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