NEWS RELEASE                                                                                            APRIL 2012

Stationary NOx Control Revenues Will Exceed $5.7 Billion This Year

The market for Selective Catalytic Reduction (SCR) and selective non-catalytic reduction systems will exceed $5.7 billion this year. This is the latest forecast in the McIlvaine NOx Control World Markets. (

   NOx Control Revenues ($ Millions)

Industry 2012
Coal-fired Power 5,211
Gas Turbines 315
Incinerator 58
Industrial Boiler 114
Other Industries 87
Total 5,785

Most of the investment will be by operators of coal-fired power plants. China will lead the way, followed by the U.S. There is considerable activity in Eastern Europe. However, many new coal-fired power plants in developing countries including India are not incorporating NOx control systems.

The investment in NOx control for gas turbines will be only $315 million. This is a function of the lower cost per installation and the many power plants which will be built without NOx control. The U.S. is moving in the other direction and requiring NOx control even on peaking power plants. This creates a challenge for the suppliers due to the high temperatures encountered in the peaking turbine exhaust.

The solution has been either to reduce the temperature or install a high temperature catalyst. There were initial problems with the high temperature catalyst, but recently there has been success with this approach.

One interesting new development is the use of ozone and absorption for NOx removal. This approach has been successfully used on a number of catalytic crackers in the refinery industry. It is now being offered to the power industry. The potential to combine ozonation/scrubbing with SCR for ultra high NOx removal could be the biggest application.

An alternative to ozone is the injection of hydrogen peroxide. Both can be utilized to supplement SCR. If one has an existing SCR achieving 90 percent efficiency, it will be necessary to double the amount of catalyst to increase the efficiency to 95 percent. On the other hand, the amount of chemical needed to remove just 5 percent of the NOx is small.

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