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Boiler Basics 101: Understanding Air Permitting for Boilers in California - SCAQMD and RECLAIM

California is known for having one of the most stringent air emissions standards in the nation. Not only has the state been making environmentally conscious efforts since the 1960’s, it is also the only state that can write its own air pollution related laws and standards. When the Clean Air Act passed, Congress required the Environmental Protection Agency to grant California exemption, since the state was already developing innovative laws and standards to address the state’s major air pollution issues.


As a boiler owner in California, familiarizing yourself with local air laws and regulations can be overwhelming, which is why Nationwide Boiler is here to help. Let’s start with one of the two toughest air districts in the state, the SCAQMD.

The South Coast Air Quality Management District (SCAQMD) encompasses the Los Angeles County, Orange County, Riverside County, and San Bernardino County  . The SCAQMD implemented the REgional CLean Air Incentives Market (RECLAIM) Program in 1993 to reduce NOx and SOx emissions produced by the region’s facilities. Although the program calls for potentially expensive equipment upgrades or replacements to meet the new guidelines, companies may qualify for trading credits and other incentives through partnerships with local utilities (like SoCalGas).

aaaaaWithin the RECLAIM standards, Rule 1146 outlines specific guidelines for boilers, steam generators, and process heaters that have a heat input of 5 mmBtu/hr or greater, that are utilized in all industrial, institutional, and commercial operations. This rule has changed several times, and at the end of 2018, another revision to the rule was adopted. All Group 1 units (>/= 75MMBTu/hr) as well as Group II units (20 - 75 MMBTu/hr) with an existing permit limit greater than 2 ppm must comply with a 5 ppm NOx limit. In addition, facilities that qualify must be in compliance by 2022 – 2023. The table below outlines all equipment and current limits based on category and heat input.

If your facility falls into the RECLAIM bubble, Nationwide Boiler can assist in bringing your stationary equipment up to current standards to comply with the latest rules and regulations. Our CataStak™ SCR system is proven to reduce NOx emissions to as low as 2.5 ppm on boilers, fired heaters, and other demanding applications. Imagine what we can do for your facility to get you in compliance with RECLAIM!

Stay tuned for part 2, where we will outline specific rules and regulations within the SJVAPCD.

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Boiler Basics 101: Emissions Rules & Regulations for San Joaquin Valley APCD

Be sure to read Part I of this series to learn about emissions requirements in the SCAQMD.

In the last edition of Boiler Blog 101, we discussed air permitting rules and regulations in the South Coast Air Quality Management District (SCAQMD). In part II, we will cover the basics of air permitting for boilers in another California district that leads the country in air pollution control; the San Joaquin Valley Air Pollution Control District (SJVAPCD).

The SJVAPCD was founded in 1991 with a mission to improve the health and quality of life for all Valley residents through efficient, effective and entrepreneurial air quality management strategies. The SJVAPCD is made up of eight counties in the Central Valley of California; San Joaquin, Stanislaus, Merced, Madera, Fresno, Kings, Tulare, and Kern.

The rules that have been set forth specifically for boilers, steam generators, and process heaters are outlined below:

  QUALIFYING UNITS NOx LIMIT
Rule 4306 Units Greater Than 5 MMBtu/hr
Units Greater Than 20 MMBtu/hr
15 ppm
9 ppm
Rule 4307 Units 2.0 MMBtu/hr to 5.0 MMBtu/hr 30 ppm
Rule 4308 Units 0.075 MMBtu/hr to Less Than 2.0 MMBtu/hr 20 ppm
                     ADVANCED EMISSION REDUCTION OPTIONS

Rule 4320

Units Greater Than 5 MMBtu/hr
Units Greater Than 20 MMBtu/hr
9 ppm
7 ppm
*NOx limits listed are standard options for existing gaseous fuel-fired equipment. Enhanced options as well as limits
for new and replacement units will differ. Click each rule to review the full details; certain exemptions may apply.

 

Starting at the beginning of 2019, the SJVAPCD implemented a new rule titled, Best Available Control Technology (BACT). This rule requires that all new permits meet the lowest NOx limits that have been achieved, regardless of what is mandated. In addition, due to Assembly Bill 617, boiler owners in the SJVAPCD are mandated to meet Best Available Retrofit Control Technology (BARCT) for any existing equipment retrofits. This means that when your boiler needs to be upgraded or replaced, it must meet more stringent NOx limits, which can be as low as 7 ppm.

These rules can be overwhelming, which is why Nationwide Boiler’s AQMD experts are capable and ready to assist you with the permitting process needed for your facility. Furthermore, we can help you reduce NOx to comply with your air emissions regulations. Nationwide Boiler’s CataStak™ SCR system is proven to reduce NOx levels to as low as 2.5 ppm. Contact us today for more details.

Stay tuned for Part III, where we will discuss renting boilers in California.
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CataStak SCR System Exceeds NOx Guarantee

Nationwide Environmental Solutions is a division of Nationwide Boiler, formed over a decade ago to provide emissions and efficiency solutions to our wide range of customers. In today's day and age, protecting the environment and reducing the production of greenhouse gases is more important than ever, which is why we are so proud to have a product that exceeds expectations time and time again. 

Most recently, we teamed up with MDH Boiler Serviced to supply a food processing facility in Southern California with a new burner and CataStak SCR system retrofit for their existing 475 hp firetube boiler. With lower than typical exhaust temperatures for an SCR application, a more robust system was designed to ensure adequate performance. We are happy to report that the system not only met the guarantee of 5 ppm NOx, but actually exceeded expectations and tested at just 1 ppm NOx and 1 ppm ammonia slip! Exciting news for the team, solidifying future orders that will support the end-user efforts in reducing their company's overall greenhouse gas emissions. Check out our latest press release for the full story.

If your facility is under an air district mandate to reduce the NOx and/or CO output from your boiler or other fired equipment, give us a call at 1-800-227-1966 to learn how we can help.

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Decarbonization: What Does it Mean for the Rental Boiler Industry?

Decarbonization relates to the reduction or ultimately the extinction of greenhouse gas emissions released into the atmosphere. According to the EPA, Carbon Monoxide (CO2) makes up the vast majority of greenhouse gases released during the combustion of fossil fuels. In addition to CO2, smaller amounts of methane (CH4) and nitrous oxide (N2O) are also emitted during the combustion process. With majority of rental boilers being natural gas or oil fired, what does this mean for the future of rental boilers?

With over fifty years in the industry, Nationwide Boiler has excelled through similar hurdles. In 1995, we became the first and only rental boiler company to convert our entire fleet of watertube boilers to low NOx levels of 30 ppm. In 2001, we started actively utilizing our CataStak™ SCR system on package watertube rental boilers for ultra low NOx compliance, and in 2011 we developed the product further announcing the ammonia-free / urea-based CataStak™ SCR. These and other initiatives were accomplished with sustainability and environmental improvements in mind.

While our CataStak™ and EconoStak fuel efficiency products help the environment by reducing tons of greenhouse gas emissions, we realize the need to consider an alternate non-fossil fuel with the potential to replace the “transitional” fuel of natural gas. Luckily there are some alternate energy solutions available today, including bio-fuels, hydrogen-fired, solar, hydro, and electric.

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