朱骏杰,管俊豪,岳子尧,李强
ZHU Junjie,GUAN Junhao,YUE Ziyao,LI Qiang

• 1:南京理工大学新能源学院

摘要(Abstract)：

燃煤机组直接耦合生物质可以显著降低二氧化碳排放量，是燃煤电厂实现“双碳”目标的主要路径之一。通过Aspen Plus搭建的300 MW煤粉锅炉模型模拟生物质直接耦合煤燃烧发电流程，根据模拟结果以及建立的经济性模型和碳减排模型，分析了燃煤机组掺烧生物质的度电成本和碳排放变化。结果表明，随着生物质掺烧比例增大，燃煤机组的额外每度电成本逐渐升高，但考虑碳税因素后，额外每度电成本将会降低。因此合理设置碳税价格可以有效促进生物质的掺烧，通过调节碳税可以降低掺烧生物质带来的经济成本。燃煤机组耦合生物质可明显减少二氧化碳排放量，关键是降低生物质的含水量。研究结果为生物质直接耦合煤燃烧发电的技术实现和经济性评估提供了参考。
Direct coupling of biomass in coal-fired power plants can significantly reduce carbon dioxide emissions, which is one of the most important paths for coal-fired power plants to achieve the "carbon peaking and carbon neutrality" goal. In this paper, a 300 MW pulverized coal boiler model built by Aspen Plus is used to simulate the direct coupling of biomass in coal-fired power plants. According to the simulation results and the established economic and carbon emission reduction model, the electricity cost and carbon emission changes of coal-fired unit mixed with biomass are analyzed. The results show that with the increase of biomass blending ratio, the additional cost per kWh of coal-fired plant will gradually increase, but after considering the carbon tax factor, the additional cost per kWh will decrease. Therefore, setting a reasonable carbon tax price can effectively promote biomass blending and utilization, and the economic cost of biomass blending can be reduced by adjusting carbon tax. The coupling of coal-fired units with biomass can significantly reduce CO_2 emissions, and the key is to reduce the water content of biomass. The research results provide a reference and support for the technical implementation and economic evaluation of direct coupling of biomass in coal-fired power plants.

关键词(KeyWords)： 燃煤机组;生物质;直接耦合;经济性分析;CO_2减排
coal-fired power plants;biomass;direct coupling;economic analysis;CO_2 emissions reduction

Abstract:

Keywords:

基金项目(Foundation): 江苏省“双创博士”项目“制备污泥煤浆的关键技术研究”（JSSCBS20220277）

作者(Author): 朱骏杰,管俊豪,岳子尧,李强
ZHU Junjie,GUAN Junhao,YUE Ziyao,LI Qiang

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