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Two makers of the tire raw material carbon black are on track to complete plant upgrades before a US Environmental Protection Agency–imposed deadline of April 2021. Orion Engineered Carbons says it has decreased emissions of nitrous oxide and sulfur dioxide at its plant in Orange, Texas, with a thermal oxidizer and a selective catalytic reduction reactor. Cabot said last month that it has almost completed an upgrade of its facility in Franklin, Louisiana, that will cut NOx and SO2 emissions by 90% or more.
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