NEWS RELEASE                                                                                                    JANUARY 2015

$9 Billion NOx Control Market in 2019

Purchases of catalyst and reagents will steadily rise while the sales of equipment will fluctuate over the next four years. Capital and consumable expenditures will exceed $9 billion. This is the conclusion reached in NOx Control World Market published by the McIlvaine Company.

World NOx Control Expenditures ($ Millions)










More than 50 percent of the market will be in China where there has been 20 percent per annum growth over the last ten years.  Power plants will account for the bulk of the revenues with the balance divided among waste incinerators, refineries and other industries.

Chinese suppliers with or without U.S. partners are rising to leading positions in both the supply of equipment and catalysts. In China, the most popular form of reagent is urea.  This is in contrast to the rest of the world where anhydrous ammonia is the leading reagent. Aqueous ammonia is used in many gas turbine installations where the total reagent quantities are modest.  The safety protocol expenditures are relatively fixed regardless of quantity.  It, therefore, makes sense to use an inherently safe reagent where reagent quantities are small.

There are various ways to remove NOx.  Most is removed with selective catalytic reduction (SCR).   Selective non-catalytic reduction (SNCR) is popular where efficiency requirements are lower.  The two technologies can be used together to improve economics.  This is particularly true when control technology must be added to existing plants.

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