Research and Practice on Development Path of Low-carbon, Zero-carbon and Negative Carbon Transformation of Coal-fired Power Units Under “Double Carbon” Targets

Abstract

Based on the existing relevant technical system, coal-fired power units can be gradually transformed through the “three-step” carbon reduction strategy, that is, through technical carbon reduction (coal consumption reduction and deep peak shaving) to achieve low carbonization, through fuel decarburization to achieve zero carbonization, through flue gas decarburization to achieve negative carbonization. The strategy makes coal-fired power units have advantages of reliable, harmonic and stable, and solves the high carbon emissions of the units. As a kind of zero-carbon new energy, biomass thermal power can simultaneously solve the following two dilemmas: the wind and solar new energy power plus energy storage can’t really ensure the safety of power grid; the traditional coal power is stable and adjustable, but the carbon emission intensity is too high. Biomass thermal power has become the backbone of China’s future low-carbon power supply, and will make historical contributions to the early realization of a new power system with new energy as the main body.

Keywords

• carbon peak
• carbon neutrality
• coal-fired power units
• energy saving and consumption reducing
• deep peak shaving
• fuel decarburization
• flue gas decarburization