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ANRS modifies engines to meet Federal NOx reduction regulations. R.A. Rushman and C. Wilke. Pipeline Gas Ind., November 1998, 81(11), 90--94.

Compressors on three gas storage facilities in Michican use Ingersol-Rand 410-KVR engines and tests show NOx emissions close to the legislative requirement of 12 g/hp-hr. Engine modifications to reduce NOx emissions by 33% are described. The initial step was to change the engines to a pre-combustion chamber design and monitor emissions using a portable analyser. Installation of fuel balance valves, use of an air preheat system, and advancing the valve timing are other modifications described. Tabulated test data show the effects of design changes on NOx emissions. A mixing package developed by Dresser-Rand is described as a less costly alternative which avoids the need for pre-chambers, cylinder head replacements, and pilot fuel systems.

Abstract details

Journal title: Pipe Line & Gas Industry

Keywords: Compressors

Subjects: Compression, Environmental protection, Protection of ambient air and climate, Law and Legal practice, Electricity from fuel combustion, Heat generation, Pipeline, Storage, Oil and gas, Oil, Regulation, Recruitment