Dry Ice Blasting & Cleaning Blog

Boosting RTO Performance with Dry Ice Blasting

Confined space cleaning

Regenerative thermal oxidizers (RTOs) are essential to many manufacturing operations, helping convert volatile organic compounds (VOCs) into harmless water vapor and carbon dioxide through high-temperature combustion. They keep facilities compliant with EPA emissions regulations while ensuring safer air quality for workers and surrounding communities.

But over time, these systems can accumulate a challenging mix of debris — from sticky, syrup-like residues to rock-hard buildups — that can compromise efficiency and safety. Traditional methods, like chemical cleaning, aren’t viable for RTOs. Instead, the solution lies in a powerful, precise method: dry ice blasting.

The Importance of RTO Cleaning

Every manufacturing process that emits volatile organic compounds — from food and beverage flavoring to petrochemical production — eventually sends byproducts into its RTO. These compounds coat fans, ductwork, and internal chambers, diminishing airflow and reducing thermal efficiency.

Left unchecked, this buildup can lead to increased energy costs, reduced performance, or even system failures. It also creates hazardous conditions for employees performing maintenance.

Why Dry Ice Blasting Is Ideal for RTO Cleaning

Dry ice blasting uses compressed air to propel solid CO₂ pellets at high speeds, effectively lifting and removing residue without damaging the underlying surface. It’s a non-abrasive, chemical-free process that restores critical components like fans, ductwork, and internal chambers — even in the most hard-to-reach areas.

Unlike manual scraping or brushing, dry ice blasting:

  • Reduces Downtime: faster than hand cleaning, getting systems back online sooner
  • Improves Safety: eliminates the need for harsh chemicals and keeps RTOs operating properly to prevent the release of VOCs
  • Restores Efficiency: removes years of buildup, improving airflow and heat transfer

Who Needs RTO Cleaning?

Many manufacturing facilities, including food production and petrochemical plants, produce chemical emissions that require the use of an RTO, which need regular maintenance to ensure the safe and efficient elimination of VOCs. The EPA mandates these systems stay functional and compliant, but proactive cleaning also reduces operational risks and helps avoid costly repairs.

Polar Clean’s Approach to RTO Cleaning

At Polar Clean, we’ve seen it all — from compact 3x3x2-foot units to RTOs the size of a small house. Recently, we tackled a project for a flavor and fragrance manufacturer whose RTO hadn’t been cleaned in more than five years. Using dry ice blasting, we cleared away layers of buildup, restoring system performance and reducing operational risk.

Our team is trained and certified for the most demanding jobs, including confined-space entries with supplied air. We can also provide robotic cleaning of RTO ductwork, a time and labor saving solution for tight spaces.

Keep Your Operations Safe & Compliant

Don’t wait until buildup slows your system or creates hazards. Contact Polar Clean to schedule a thorough RTO cleaning and keep your operations running safely and efficiently.

Learn more about our RTO cleaning services