Beijing Energy Future Gas-burning power plant
Project Background
Beijing Energy Future Gas-burning Heat and Power Co., Ltd. generates power by the combined gas-steam cycle and is also responsible for heat supply to the surrounding areas. Restricted by the high return-water temperature of the heat network, the exhaust temperature of gas-fired boilers is hard to reduce, resulting in low natural-gas efficiency, high heating cost and a visible white plume that affects the city landscape; meanwhile the steam in the flue gas contains a large amount of latent heat of vaporization.
Beijing Keyuan Ruineng Energy-saving Equipment Co., Ltd. implemented deep recovery of the gas turbine exhaust heat: 48MW of waste heat was recovered in total and the total heat supply reached 112MW. This is the first application of deep flue-gas waste heat recovery technology at a gas-fired power plant in the world.
Process Flow
The flue gas from natural-gas combustion enters the deep flue-gas waste heat recovery unit, where its heat is deeply recovered and the exhaust temperature is significantly reduced; the recovered heat is used to heat the network return water or for direct heat supply.
Technical Advantages
- Gas boiler exhaust temperature reduced to below 30°C;
- Natural-gas utilization improved by more than 10%;
- NOx, SO2 and other pollutant emissions reduced, white plume eliminated;
- The unit can provide cooling in summer — one unit, two uses.
Selected Projects
- Tianjin West Railway Station CCHP waste heat recovery project
- Tongzhou Zhumuchang Boiler House waste heat recovery project
- General Logistics Department gas boiler house waste heat recovery project
- Future Technology City gas power plant waste heat recovery project
- Shahe Boiler House waste heat recovery project
- Dongba Boiler House waste heat recovery project
- Changping District Nanhuan Heating Plant coal-to-gas conversion project
- Beijing Yong'an Heat Energy North Ring Boiler House
- Dalong Heating Center — Yuxiang Boiler House
- Beijing Tianlian Heat Energy Co., Ltd.