Environmental and Carbon Reduction Benefits of Gas Engine Power Generation from Industrial Waste Gases
Industrial gas engine power generation technology converts combustible waste gases from sectors like steel and chemicals into clean energy. As a leading company in this field, Jiangsu KelinYuan sets a strong example for carbon reduction through its successful application cases.
01 Core Mechanisms of Carbon Emission Reduction
（1）Substituting Fossil Fuels to Reduce Direct Carbon Emissions KelinYuan’s high-power gas engines (e.g., model NPG4000, 4000kW) can directly convert industrial waste gases such as coke oven gas and blast furnace gas into electricity, replacing traditional coal-fired power generation.
（2）Avoiding Direct Pollutant Emissions By employing a “wet scrubbing + biochemical desulfurization” process, KelinYuan effectively addresses sulfur compound pollution in gases like semi-coke gas and biogas. This technology uses an alkaline solution containing aerobic bacteria to absorb organic sulfur, achieving high desulfurization efficiency with low operating costs. It has been successfully applied in chemical enterprises in Shanxi, Hebei, and other regions, reducing pollutant emissions to below 10 mg/Nm³.
（3）Combined Heat and Power (CHP) to Improve Energy Efficiency The waste heat from gas engines can be further used to generate steam or provide heating, significantly improving overall energy utilization efficiency and reducing additional energy consumption.
02 Representative Projects and Environmental Benefits
Semi-coke Gas Power Generation: Driving Green Transition in High-Pollution Industries To address the specific characteristics of different waste gases (e.g., blast furnace gas with a calorific value as low as 0.7 kWh/Nm³), the engine optimizes combustion via technologies such as split intake, dual-stage boosting, and single-cylinder control. Stable operation can be achieved even without blending additional fuels.
Comprehensive Utilization of Metallurgical Industry Gases
（1）Coke Oven Gas Power Generation: The NPG4000 gas engine was selected as a key first-of-its-kind major technical equipment by the National Energy Administration. A single unit can generate 32 million kWh annually, replacing coal-fired power and reducing CO₂ emissions by approximately 26,000 tons per year.
（2）Blast Furnace Gas Power Generation: For low-calorific-value gases (0.7 kWh/Nm³), stable power generation is realized through pre-combustion chamber technology and intelligent control. The system can generate 180 kWh of electricity per ton of ironmaking waste gas, achieving annual CO₂ emission reductions of up to 500,000 tons.
Distributed Energy and Peak Shaving Applications
（1）Trigeneration (Cooling, Heating, and Power): Providing integrated electricity, heating, and cooling solutions for hospitals and data centers, with an overall energy utilization rate of 85%. In typical cases, the waste heat from gas power generation is used to produce steam, reducing additional energy consumption by 20%.
（2）Grid Peak Shaving: During peak demand periods, KelinYuan’s gas engine systems can connect to the grid within 30 seconds, helping to stabilize renewable energy fluctuations. Annual peak-shaving operation can reduce CO₂ emissions by more than 100,000 tons.
03 Extended Benefits and Innovation Directions
（1）Promoting Circular Development Across Industries From the outset, Zhanjiang Jicheng Paper Co., Ltd. in Guangdong prioritized environmental protection by using biogas generated from anaerobic wastewater treatment for power generation. Our company undertook the construction of a 500kW biogas power generation project, adopting cutting-edge biogas technology. The electricity generated is fed into the company’s private power plant and connected to the municipal grid. The project passed environmental inspections and received unanimous praise.
（2）Internationalization and Technical Cooperation At the end of 2023, KelinYuan was invited to participate in the 25th China Hi-Tech Fair. There, we forged strong connections with clients and industry peers, jointly exploring new directions for industry development and laying a solid foundation for future cooperation and innovation. Our company won the "Excellent Product Award" in the Bao'an Exhibition Area.
（3）Policy and Standards Leadership KelinYuan enhances product reliability and user-friendliness through automation, and leads the domestic gas engine sector with continuous innovation, reaching internationally advanced levels. We aim to break foreign monopolies and fill domestic gaps. Rooted in China with a global vision, we strive to bring clean energy technologies, products, and services to more regions worldwide, working with partners to contribute to the realization of the national "dual carbon" goals.
