Delivery and Acceptance of Regenerative Thermal Oxidizer for a New Energy Lithium Battery Electrolyte Solvent Facility in Jiangsu
Project Background
A Jiangsu-based energy technology company, ranked among China's Top 500 Enterprises, is primarily engaged in the construction of national strategic industrial projects, including lithium battery electrolyte solvents, supporting facilities, and specialized electronic chemical products. The company plans to expand its operations by installing a 100,000 Nm³/h Regenerative Thermal Oxidizer (RTO) to treat wasteful gases generated from lithium battery electrolyte solvent production and related processes.
The company plans to expand its operations by installing a 100,000 Nm³/h Regenerative Thermal Oxidizer (RTO) to treat exhaust gases generated from lithium battery electrolyte solvent production and related supporting processes.
Main Sources of Exhaust Gases:
- Process emissions from the main production unit
- Exhaust from the DMC (Dimethyl Carbonate) filter press room
- Collected emissions from storage tanks in the third-phase expansion
Key Pollutants:
- Dimethyl carbonate (DMC)
- Methanol
- Ethanol
- Diethyl carbonate (DEC)
- Ethyl methyl carbonate (EMC)
- Ethylene carbonate (EC)
- Ethylene oxide
- Carbon dioxide
Design Solution
Xi'an Yurcent Environmental Technology Co., Ltd. utilized its proprietary "Air Dilution Calculation Process Package for Mixed Gases Containing Inert Components Below the Explosive Limit", which includes:
- Low-Flow Safe Air Dilution Technology
- Ultra-Low Emission Technology at the Outlet
Based on this system design, the required oxygen-supplemented dilution air volume was determined to be 90,000 Nm³/h, and the final solution adopted was a rotary-valve RTO with a capacity of 100,000 Nm³/h.
After calculations, the actual waste gas flow rate for this project was 8,670.55 Nm³/h, with the mixed gas concentration exceeding the explosive limit. Therefore, the following treatment process was implemented:
"Safe Air Mixing & Dilution → RTO → Ultra-Low Emission Adsorption → Reserved Waste Heat Recovery Boiler"
Operational Performance
To date, the system has been stably operating for over one year, with non-methane hydrocarbon (NMHC) emissions consistently maintained below 10 mg/m³ and an RTO purification efficiency exceeding 99.5%, achieving high-standard environmental compliance.
