Natural Gas Catalysts

Breathing Easier: How Natural Gas Catalysts Clean Up Bus Emissions

Emissions regulations on transit vehicles are a continual focus because exhaust fumes can significantly impact air quality. While diesel buses have long been a concern, natural gas presents a cleaner alternative – but it still requires help to achieve cleaner emissions. That’s where natural gas catalysts come in.

Why Natural Gas?

There are advantages of compressed natural gas (CNG) as a fuel source for the transit bus fleet.  CNG offers a significant advantage in terms of both cost and availability:

  • Abundant Supply: North America boasts a vast and extensive natural gas pipeline network, ensuring a readily available fuel supply.
  • Low Cost: CNG is generally a lower-cost fuel than diesel, offering the potential for significant cost savings in the operational budget.
  • Extensive Refueling Infrastructure: With over 800 public CNG refueling stations across the country, the transit fleet has access to well-established refueling infrastructure.

This readily available, cost-effective fuel source represents a compelling option for reducing operational expenses while maintaining efficient fleet operations. 

The Secret Sauce: Precious Metals and Chemical Reactions

A natural gas catalyst can be thought of as a specialized cleaning system for the exhaust of a natural gas-powered bus. It’s similar to the catalytic converter found in gasoline-fueled cars but specifically designed to tackle the unique challenges posed by natural gas combustion.

These catalysts are miniature chemical factories working tirelessly to transform harmful pollutants into less harmful substances before they’re released into the air.

The magic happens within the catalyst. Precious metals like platinum, palladium, and sometimes rhodium are the key players. These metals act as catalysts, accelerating chemical reactions that break down pollutants. They’re usually deposited onto a ceramic substrate, providing a large surface area for these reactions to take place.

The Main Target: Unburned Methane

A significant component of natural gas is methane, a potent greenhouse gas. Natural gas catalysts primarily focus on oxidizing this unburned methane, converting it into carbon dioxide and water vapor. While carbon dioxide is still a greenhouse gas, it’s significantly less potent than methane, resulting in a net reduction in harmful emissions.

The Big Picture: Cleaner Buses, Cleaner Air

Natural gas catalysts are essential for meeting increasingly stringent emission standards for public transportation. By significantly reducing harmful pollutants, natural gas buses are a more environmentally friendly option than their diesel counterparts.

Achieving Cleaner Emissions with Roadwarrior’s Natural Gas Catalysts

Natural gas engines are a rare sight in the heavy-duty industry, representing less than 1% of all trucks on the road. However, they have become increasingly popular in transit buses due to their cleaner emissions and lower environmental impact. Despite their limited use in heavy-duty vehicles, Roadwarrior has established itself as the leader in natural gas catalyst solutions for both trucks and buses. This success is built on decades of expertise as part of the DCL Technology Group.

The Power of Metalcor Technology in This Natural Gas Catalyst

At the core of Roadwarrior’s natural gas catalysts is its proprietary Metalcor technology, which provides superior durability and performance compared to standard solutions. This technology allows them to develop efficient and long-lasting catalysts that target three major pollutants: carbon monoxide (CO), nitrogen oxides (NOx), and hydrocarbons (HC).

The result is a cleaner, more efficient solution that supports greener transportation—without compromising on performance. You can read more about the advantages of Roadwarrior’s Metalcor technology here.

Roadwarrior’s Leadership and Expertise

While natural gas catalysts are typically uncommon in the heavy-duty industry and are often associated with high costs, Roadwarrior has cracked the code to make them more affordable. Due to its heritage with DCL, which includes a world-class R&D department with over 40 years of experience in emissions control, they’ve perfected catalyst coatings and designs that not only meet emissions regulations but also outperform OEM solutions.

Cost-Effective Natural Gas Catalyst Choices for Fleet and Transit Operators

What sets Roadwarrior apart is their ability to offer these advanced catalysts at half the cost of OEM parts, making them a cost-effective choice for fleet operators and transit systems. Their three-way natural gas catalysts are already being used worldwide, from power generation to the oil and gas industry, proving that affordability and efficiency can go hand in hand.

With Roadwarrior’s Metalcor-based natural gas catalysts, heavy-duty vehicles can achieve cleaner emissions at a fraction of the cost—making sustainability more accessible than ever.

RoadWarrior 3-Way Natural Gas Catalyst

KIRKS Carries RoadWarrior’s 3-Way Natural Gas Catalysts. For product information, click here.

Contact KIRKS for expert guidance on selecting the right natural gas catalysts. Whether you need new parts or Approved Equal Replacements, your dedicated KIRKS Account Manager can help you find the perfect fit. Email us at sales@kirks.com or call (313) 771-4970 for seamless upgrades or advice.