面向碳中和的工业尾气电厂技术综述及其典型案例经济性分析

Achieving the dual goals of carbon peak and carbon neutral is an important strategy of China. Industrial off-gas emission is one of the main greenhouse gas emissions, and industrial off-gas carbon emission control is the key to reduce carbon emissions. Exploring the problem of achieving carbon emission reduction by using industrial off-gas to generate electricity has immense practical significance under the background of carbon neutral. Firstly, the fundamental principle of the off-gas power plant is briefly summarized. Taking three typical types of industrial off-gas as examples, the composition of off-gas and the change of pollutants after off-gas power generation are introduced. The basic principles of off-gas power generation technology are also introduced. Secondly, the technical solutions of off-gas power plants are summarized, and technology transformations and difficulties of off-gas power generation are analyzed. Furthermore, the advantages, disadvantages, applications and technology transformations of off-gas power generation schemes are analyzed and compared. The development and research status of off-gas power plant technology are reviewed. Thirdly, the typical cases and their benefits are introduced, and their economic analysis of off-gas power plants from the perspective of the unit cost are conducted. Finally, combined with the current practice of off-gas power plants in China, the future development of off-gas power plant is summarized, and the technology, participation in new energy accommodation, influence of grid connection, operation mode, and improvement in policy are discussed.