The American spelling of the noun describing the industrial process of removing sulfur compounds from fuels, metals, or other materials to reduce pollution.
American English form using '-ization' (versus British '-isation'), from 'desulfurize' plus the noun suffix. Became standard terminology in American environmental and industrial chemistry in the late 20th century.
Desulfurization technology is so important that the U.S. EPA created specific regulations for it—and it's saved millions of tons of sulfur dioxide from entering the atmosphere since the 1990s.
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