CDM and NOₓ Abatement: Key Technologies & Global Leaders
Reducing nitrogen oxides (NOₓ) has become a priority for industries working under Clean Development Mechanism (CDM) frameworks and modern environmental regulations. NOₓ emissions from power plants, chemical industries, and combustion processes contribute to smog, acid rain, and climate-forcing pollutants. Technologies that cut NOₓ not only improve air quality—they also help generate carbon-credit value under CDM.
Why NOₓ Abatement Matters
NOₓ pollutants (NO + NO₂) play a major role in:
- Ground-level ozone formation
- PM2.5 generation
- Acidification of soil and water
- Respiratory and cardiovascular diseases
To meet ESG goals and environmental standards, industries increasingly rely on proven, high-efficiency NOₓ-removal technologies.
Major NOₓ-Abatement Technologies
1. Selective Catalytic Reduction (SCR)
The most widely adopted system globally.
- Uses ammonia/urea + catalyst to convert NOₓ → N₂ + H₂O
- Achieves 80–95% removal
- Used in power plants, refineries, waste-to-energy plants, heavy industry
2. Selective Non-Catalytic Reduction (SNCR)
- Lower-cost alternative to SCR
- Uses ammonia/urea at high furnace temperatures
- 30–60% NOₓ reduction
3. Low-NOₓ Burners & Combustion Optimization
- Prevent NOₓ at the source
- Common in boilers, cement kilns, and turbines
ThyssenKrupp’s EnviNOx® – A Breakthrough Technology
One of the most advanced NOₓ-abatement systems in the world—especially for nitric acid and industrial chemical plants.
EnviNOx® by ThyssenKrupp Uhde
- Targets both NOₓ and N₂O (nitrous oxide), a greenhouse gas 265× stronger than CO₂
- Achieves up to 99% abatement
- Uses special catalyst systems in tail-gas treatment
- Popular in fertilizer, nitric acid, and chemical industries
- Generates significant CDM carbon credits due to high N₂O reduction
Because N₂O removal is eligible for greenhouse-gas crediting, EnviNOx® has been one of the most financially beneficial CDM technologies globally.
Other Leading Technology Providers
- Topsoe – SCR/SNCR systems and tail-gas abatement
- Johnson Matthey – Advanced catalysts for DeNOₓ
- Mitsubishi Heavy Industries (MHI) – Large-scale SCR systems
- Yara International – Ammonia/urea NOₓ-control solutions
- DuPont / MECS – Tail-gas cleanup for nitric acid & sulfuric acid plants
CDM-aligned NOₓ-abatement technologies deliver dual benefits:
✔ Cleaner air and healthier ecosystems
✔ Measurable carbon-credit value and global sustainability compliance
Systems like SCR, SNCR, and especially ThyssenKrupp’s EnviNOx® are transforming emission control in heavy industry—making them essential solutions for a cleaner and more sustainable industrial future.
