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CataStak™ SCR Best Option for System Upgrades

In February of this year, the Boiler MACT rule was published in the Federal Register, causing the Environmental Protection Agency (EPA) to propose new regulations calling for system upgrades on boilers and auxiliary equipment in many plants.  The costs associated with these upgrades can reach up to $35 billion according to the EPA, but because the costs will be specific to each individual plant, no one will know the real costs until the boiler equipment is evaluated to comply with new and future regulations.  Boiler operators are hesitant to spend the money due to the uncertainty of regulations, but eventually something will need to be done.

There are resources available, and the U.S. boiler and combustion equipment industry is readily able to meet the demand for these system upgrades. Randy Rawson, President of the American Boiler Manufacturer’s Association (ABMA), said, “We have the workforce resources to meet the needs of our customers, as long as our customers don’t push compliance go the last minute.”

The largest air districts in California have passed rules that require NOx compliance as low as 5 ppm by the year 2015.  Few burner manufacturers have been successful with developing new ultra low NOx (ULN) burner technology that easily and safely performs at 9 - 7 ppm NOx.  Many users that have tried ULN burners suffer the consequences of high FGR or excess air rates that compromise not only efficiency, but also the operational limits of boiler equipment, resulting in limited turndown capabilities, flame pulsations and unstable operation.

Today, selective catalytic reduction (SCR) technology has taken over as the best available control technology for complying with ultra low NOx emission requirements.  Nationwide Boiler, having invested in SCR technology for our rental fleet over the last ten years, has both the experience as an user and a supplier of the CataStak™ SCR system.   Our SCR systems have met or exceeded emission requirements for over one hundred boilers, steam generators and gas turbines installations.

The Nationwide Boiler CataStak™ SCR system is proven to decrease emissions, increase energy efficiency, reduce fan horsepower and provide greenhouse gas / carbon reductions. Typical users can save significant energy costs by reducing flue gas recirculation which substantially reduces fan horsepower (HP) and when compared with a typical 9 ppm burner, fan HP can be reduced by as much as half.

If you are concerned or have questions about how your facility is planning to comply with local air quality regulations, send am email to info@nationwideboiler.com and together we can come up with a solution that can perform as low as 2.5 ppm NOx and pass any current air regulation with the lowest carbon footprint.

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CataStak Quote Request Form Now Online



Complete Nationwide Boiler’s CataStak Quote Request form and join the list of over 100 hundred customers who have reaped the benefits of a CataStak™ SCR system (sales and rentals).  Once we receive all relevant information pertaining to your system, we will provide an accurate quote that will aid in your decision process.

Nationwide Boiler’s CataStak SCR system has never failed a third-party source test and is proven to work in applications including boilers, heaters, and natural gas-fired turbines. In addition, ammonia-free solutions are also available.

Contact Nationwide today for a no obligation quote and visit our website for additional product literature and resources.

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Energy Department to Provide Technical Assistance to Facilities Impacted by EPA Boiler Rule

On December 20, 2012, the EPA finalized the Boiler MACT, a specific set of adjustments to existing Clean Air Act standards, for boilers and certain solid waste incinerators. These adjustments set standards to cut emissions of hazardous air pollutants, such as mercury, dioxin, and lead, from large boilers in a range of industrial facilities and institutions.

The DOE will offer technical assistance to affected sites currently burning coal or oil, highlighting strategies such as natural gas combined heat and power (CHP), and more efficient boilers, to cut harmful pollution and reduce operational costs. DOE will also provide site-specific technical and cost information to the major source facilities currently burning coal or oil through its regional Clean Energy Application Centers (CEACs).

The CEACs will visit these facilities to discuss strategies for compliance, including CHP, as well as provide information on potential funding and financing opportunities available for CHP, controls, boilers and energy efficiency assessments. Facilities that make use of this technical assistance can potentially develop strategies to comply with the regulations while adding to their bottom line.

Contact Nationwide Boiler today to discuss how we can help you come up with a solution that will cut emissions in your facility. Call: 1-800-227-1966.

For more information on the DOE technical assistance program, see:
http://www1.eere.energy.gov/manufacturing/distributedenergy/boilermact.html

Information on financial incentives available at the local, state, utility and federal levels to assist facilities with the costs of investing in CHP, boiler tune-ups, controls and/or energy efficiency assessments is available at:
http://www1.eere.energy.gov/manufacturing/states/pdfs/incentives_boiler_mact.pdf

Information about the rule, including links to the regulatory dockets, technical information on how the limits were developed, and impact assessments, is available at:
http://www.epa.gov/airquality/combustion/actions.html

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Seven Immediate Energy Saving Ideas

1    Operate Boilers At or Close to Design Capacity. This decreases fuel consumption per unit of production and can result in an estimated energy savings range of 1 percent to 5 percent.  Likewise, if your facility or plant requires excess capacity, visit the Nationwide Boiler website to obtain a current list of boilers for rent or for sale.  Nationwide Boiler provides new and used boilers that can ship immediately, anywhere around the world (conditions apply, contact Nationwide Boiler for details).
2    Reduce Combustion Excess Air. Measure and control air-fuel ratio or oxygen and carbon monoxide content of flue gases from process heating equipment such as furnaces, ovens, and boilers for the entire range of operation. This has an estimated energy savings range of 2 percent to 15 percent. Think about installing a standard low NOx / low excess air burner (compared to an ULN / high excess air burner) on your boiler.  Complemented with a Nationwide CataStak™ Selective Catalytic Reduction System (SCR), a new burner retrofit and SCR installation will not only provide immediate energy savings, but will also reduce NOx emissions and decrease your carbon footprint.
3    Clean Heat Transfer Surfaces. Cleaning heat transfer surfaces lowers flue gas temperature and increases efficiency by improving heat transfer. Doing so can save an estimated 1 percent to 5 percent at a moderate cost.
4    Reduce Radiation Losses from Openings. Reducing radiation losses can save an estimated 1 percent to 2.5 percent at a relatively low cost.
5    Use Proper Oven, Furnace or Boiler Insulation to Reduce Wall Heat Losses. Reducing wall losses produces energy savings of 1 percent to 2 percent with only a moderate investment.
6    Insulate Steam Lines Leaving the Boiler as well as Air- or Water-Cooled Surfaces Exposed to the Oven or Furnace Environment. With an estimated energy savings range of 1 percent to 5 percent, piping insulation can be completed for a moderate investment.
7    Install Air Preheaters or Other Heat Recovery Equipment. This type of equipment recovers available heat from exhaust gases and boiler blowdown and transfers it back into the system by preheating. The potential energy savings range id from 1 percent to 25 percent, depending on process temperatures and other variables.  Consider a Nationwide Boiler EconoStak Economizer or a Heat Recovery (HR) Blowdown Pak to recover valuable heat that can be reused, allowing you to save money in the long-term.

Adapted from Process Heating Magazine, March 21, 2012.

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