Green Valley Environmental Protection Exhaust Gas Comprehensive Treatment (DPF+SCR) | Empowering Internal Combustion Engine Exhaust Gas of Chengdu New Energy Base to Meet Emission Standards

Guangdong Green Valley Environmental Protection has successfully completed the comprehensive exhaust gas treatment for backup generator sets at a new energy production base in Chengdu.

For the base’s Cummins diesel generator sets, we adopted an integrated DPF particulate trapping + SCR denitrification process, equipped with independently developed particulate traps and SCR denitrification devices, achieving precise control and stable compliance of exhaust pollutants, setting a benchmark for the green upgrading of new energy products.

As important supporting equipment in the new energy industry chain, backup generator sets are critical to ensuring continuous production and stable power supply.

However, traditional diesel engines produce high concentrations of nitrogen oxides (NOₓ) and particulate matter (PM) during emergency startup, which conflicts with the green and low-carbon goals of the new energy industry.

The Cummins units treated in this project had an original NOₓ emission as high as 1910 mg/m³N, far exceeding current environmental protection requirements, creating an urgent need for efficient, stable and adaptive exhaust gas treatment solutions.

With more than ten years of technological accumulation in industrial exhaust treatment, Lvgu Environmental Protection has customized a combined DPF + SCR treatment system based on the operating conditions of the new energy base.

Our dry-type particulate trap uses imported French 316L alloy metal felt filters, which feature high temperature resistance, corrosion resistance, washable regeneration, and high efficiency in capturing black smoke and PM.

The Ringelmann grade is stably maintained at Grade 1 or below, eliminating visible pollution at the source.

The SCR denitrification system supports modular installation, convenient maintenance, long service life and low operating cost, perfectly matching the operation and maintenance standards of new energy facilities.

Through intelligent urea injection and dedicated catalysts, NOₓ is reduced to nitrogen and water at appropriate temperatures with high denitrification efficiency and stable operation.

Supported by integrated intelligent control, the system adapts to the full operating range of Cummins generator sets without affecting output power or startup response, ensuring both power generation and environmental protection.

The NOₓ emission of the Cummins backup generator sets at the base has been reduced from 1910 mg/m³N to 240 mg/m³N, representing a significant reduction in exhaust emissions and fully meeting stringent local and national emission standards.

Green Valley Environmental Protection’s comprehensive exhaust gas treatment (DPF + SCR denitrification) has been applied in data centers, semiconductor plants, high-end manufacturing and new energy facilities.

We have been providing full-cycle green protection for industrial backup power through customized exhaust treatment solutions.

In the future, Green Valley Environmental Protection will continue to focus on core technologies including black smoke treatment, low-nitrogen purification and intelligent operation and maintenance.

With efficient, intelligent and convenient environmental protection equipment, we will help the national new energy industry and high-end manufacturing achieve green production and low-nitrogen operation.