CG Thermal Awarded U.S. Patent for Innovative Quench Lid Advanced Technology
Patented corrosion-resistant design improves reliability and equipment longevity in demanding industrial gas cooling applications.
CG Thermal is pleased to announce the award of a United States patent for its innovative Quench Lid Advanced technology, a corrosion-resistant hot gas nozzle and lid design developed to address persistent corrosion challenges in adiabatic gas coolers.
The patented technology represents a significant advancement in equipment design for sulfuric acid regeneration plants and other industrial processes where high temperatures and corrosive gases create demanding operating conditions.
Addressing Corrosion Challenges in Industrial Gas Cooling
Corrosion has long been a challenge in quench gas coolers, adiabatic coolers, and hot gas scrubbers, particularly in sulfuric acid regeneration applications.
In these systems, hot gases containing sulfur dioxide (SO₂) and sulfur trioxide (SO₃) enter cooling equipment from high-temperature decomposition furnaces. As the gases are rapidly cooled, acidic condensates can form, creating highly corrosive conditions that can compromise conventional equipment.
Even specialty metals may struggle to provide long-term reliability in these environments, leading to premature equipment failure, increased maintenance requirements, and costly downtime.
A Patented Approach to Corrosion Resistance
Developed by CG Thermal’s high-temperature engineering team, Quench Lid Advanced incorporates an innovative corrosion-resistant nozzle and lid configuration designed to significantly reduce corrosion in critical areas of the cooling system.
By protecting vulnerable components and limiting the areas exposed to corrosive conditions, the design provides a more reliable solution for demanding industrial applications.
Key benefits include:
- Improved corrosion resistance in aggressive gas cooling environments.
- Extended equipment service life by reducing corrosion-related deterioration.
- Reduced maintenance and downtime associated with premature equipment failure.
- Lower operating expenses through improved equipment reliability and longevity.
- Flexible installation options for new equipment and existing system retrofits.

Download the Quench Lid Advanced Bulletin
Enter your contact information for immediate access to our Quench Lid Advanced product bulletin, featuring innovative corrosion-resistant design features, key benefits, and applications for quench gas coolers, adiabatic coolers, and hot gas scrubbers.
Designed for New Installations and Retrofits
Quench Lid Advanced can be incorporated into newly manufactured quench gas coolers, adiabatic coolers, and hot gas scrubbers.
The technology also offers retrofit capabilities for existing equipment, including designs utilizing wet-walled towers. This flexibility allows facilities to address persistent corrosion challenges without necessarily replacing their entire gas cooling system.
Advancing CG Thermal’s Commitment to Innovation
The award of this U.S. patent reflects CG Thermal’s continued investment in engineering innovation and the development of practical solutions for complex industrial challenges.
By combining specialized materials, innovative design techniques, and extensive high-temperature process expertise, CG Thermal continues to develop equipment solutions that help customers improve reliability, reduce operating costs, and optimize plant performance.
To learn more about Quench Lid Advanced or discuss your specific gas cooling challenges, contact CG Thermal’s engineering team.


