Million Saved - Regenerative Thermal Oxidizer system
Abstract: Unveiling a Chinese coal mine's groundbreaking "gas-powered cooling" tech—zero carbon emissions + double profits.
While May's heatwave strikes, this coal mine uses "waste gas" to power free air conditioning! Not only does it save millions in electricity bills, but it also earns carbon credit (CCER) revenue. At a Chinese coal mine, a world-leading "gas-cooling" system is turning methane from a "hazardous waste" into a "cash cow":
- Winter heating + summer cooling: Year-round energy self-sufficiency
- 99.3% methane destruction rate, boosting carbon reduction by 4%, adding 1 million yuan/year in carbon revenue
- Zero-carbon tech officially recognized by the state
How the RTO System Transforms "Heat" into "Cold"
The entire setup works like a "steam magician":
- RTO Incinerator (High-Temperature Furnace): Burns gas into clean hot flue gas (99.3% methane destruction).
- Waste Heat Boiler (Energy Converter): Turns hot flue gas → steam.
- Lithium Bromide Chiller (AC Heart): Feeds in steam, blows out cold air—zero electricity consumed!
The core principle of the lithium bromide chiller:
- Uses heat (e.g., steam) to evaporate water in the LiBr solution, absorbing heat for cooling—no traditional compressor, just waste heat turned into cold energy.
- Advanced automated control ensures safety: operational limits + fail-safes.

Now, the steam from the thermal oxidation system can also be used in summer: Steam in, cold air out—a "super magic" transformation that beats the heat before it arrives.
This "waste-to-energy" breakthrough achieves "heating + cooling" dual functionality, breaking free from the old mindset of "just treating gas as gas" and instead creating an integrated "resource-energy-environment" synergy.
The project’s Rotary RTO improves carbon reduction by 4% compared to traditional 2-chamber RTOs, generating an extra ~1 million yuan/year in carbon credits. Its innovative rotary gas distribution valve also extends continuous operation life to 30,000 hours.
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