Regenerative Thermal Oxidizer System Stable Operation for 5 Years
Regenerative Thermal Oxidizer System — A Highly Reliable VOCs Treatment Solution for a Gravure Printing Plant Stable Operation for 5 Years
Project Case
A color printing company in Chongqing mainly produces flexible plastic packaging products.
This project focuses on treating a large volume of VOC waste gas generated during the printing and laminating processes.
Project Overview
Waste Gas Parameters
Main pollutants: Ethyl acetate, n-propyl acetate, isopropanol, etc.
Waste gas concentration: Approximately 1,500–3,000 mg/m³
Design Solution
The project was implemented in three phases, with a total of three sets of 30,000 m³/h rotary valve type Regenerative Thermal Oxidizer systems combined with air volume reduction and concentration as the core equipment for waste gas treatment.
Technical Advantages
Advanced Regenerative Thermal Oxidizer Technology
The third-generation Regenerative Thermal Oxidizer achieves a purification efficiency of up to 99.5% and a thermal efficiency of 96%.
Advanced Safety Control Technology
A total of 25 core safety measures ensures safe operation, achieving full coverage of all control points.
Advanced VOCs Treatment Process for Flexible Packaging Printing
The process route adopts: printing machine, LEL-based air volume reduction and concentration + rotary valve RTO + hot water waste heat recovery.
This enables “zero fuel consumption” operation of the RTO while providing free heating for printing and laminating machines.
Operation Performance
The project has been operating stably for 5 years. According to third-party testing:
* VOC emissions after treatment are consistently ≤ 30 mg/m³, fully meeting local environmental regulations
* RTO outlet temperature ≤ 30°C
* No natural gas consumption under full-load operation
Conclusion
More optimized process selection, more comprehensive equipment configuration, and more precise parameter control ensure the long-term stable operation of the RTO system, helping enterprises achieve top-tier environmental compliance (“Grade A” performance).
Xi'an Yurcent Environmental Technology Co., Ltd. is a high-tech equipment manufacturer specializing in comprehensive VOCs waste gas treatment and carbon reduction energy-saving technologies. The company has a production area of 30,000 m² and an annual output of 300 rotary valve RTO units, with over 70 patented technologies.
To date, Yurcent has delivered more than 1,000 RTO application cases nationwide, including nearly 300 projects in the printing and packaging industry.
