Coal mine gas is a flammable and explosive gas released during coal mining, and its main combustible component is methane (CH₄). In order to ensure the safety of mine production, it is necessary to extract gas during coal mine operation, and gas that cannot be reasonably used will be directly discharged into the atmosphere. The greenhouse effect of CH₄ is 26 times that of carbon dioxide, and direct gas discharge will cause serious pollution to the atmospheric ecosystem. At the same time, gas is a kind of clean energy, which is widely used in power generation and other fields. Therefore, how to improve the comprehensive utilization efficiency of coal mine gas has become a hot topic in the industry.

In order to improve the comprehensive utilization efficiency of gas, Yuchai has developed and launched YC12VCG-1000M5HC megawatt-class low-concentration gas genset. The product can generate power stably with 6%~30% low-concentration CH₄ gas, with a rated power of 1,000 kW (i.e. 1 MW). The genset is developed using the proven C-platform with more than 10,000 units in the market, featuring high reliability and low maintenance cost.

Compared with similar products, Yuchai's gas genset technology has obvious advantages: ◉ Minimum operating gas concentration: ≥6%; ◉ Continuous load capacity: ≥95%; ◉ Thermal efficiency of engine: ≥40%; ◉ Oil consumption rate: <0.3 g/kW·h; ◉ Exhaust gas emission level: NOx≤500 mg/ Nm³ (@5% O₂).

Now, the greenhouse gas consumed by one Yuchai megawatt-class gas genset for one year of operation is equivalent to a carbon dioxide emission reduction of about 30,000 tons.

At present, Yuchai gas gensets have been used in batches in coal mines in Guizhou, Henan, and Yunnan, and have won unanimous praise from customers for their stable operation and excellent performance.

Adhering to the mission of creating value for customers, Yuchai has not only created economic benefits for customers in power generation, but also actively responded to the national policy of carbon peaking and carbon neutrality, contributing to the control of greenhouse gas and air pollution.