The Next Generation of Monoacid Lubricity Improvers


The impact of emissions regulations and the modernization of engine technology have led to big changes in fuel refining, specifically the desulfurization of diesel fuel. However, because the desulfurization process results in a reduction of the natural lubricity of diesel fuel, a lubricity specification was incorporated into the fuel specification ASTM D975 in 2005 to mitigate harmful side effects such as engine wear. Lubricity-improving additives currently fall into two categories: neutrals and acids. Of the two, monoacidic additives are the most cost-effective approach for improving fuel lubricity—meeting the highest standards of performance at significantly lower treat rates.

Afton Chemical’s monoacids have successfully treated about 1 out of every 5 gallons of diesel fuel consumed in the United States since 2008, accounting for more than 500 billion miles of trouble-free operation.

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