造纸生物质共烧对燃煤火电厂运行能效及烟气排放稳定性的影响

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy Pub Date : 2025-05-08 DOI:10.1016/j.energy.2025.136484

Ting Chen , Yuanfang Zhao , Shenda Huang , Yiying Jin , Meizhen Wang , Huajun Feng , Jun Yin

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引用次数: 0

摘要

生物质共烧是改善燃煤电厂能源结构、应对减碳压力的有效策略。为保证电厂的主要供能功能不受影响，需要对生物质共烧后的实际运行能效和气体排放稳定性进行评估。因此，对某运行燃煤电厂与造纸生物质（污泥、沼气和木屑）共烧后的能效和气体排放稳定性进行了分析。结果表明：14.09%的生物质混合比例可满足植物能源需求，年热效率和综合热效率分别提高12.38%和9.45%。然而，不同共烧过程的能源效率和气体排放是不同的。当污泥、沼气和木屑共烧时，能效和气体减排效果最佳，月平均综合热效率提高8%，CO2、SO2、NOX和pm的排放强度分别降低32.24%、57.14%、33.33%和41.33%。此外，稳定性等级评价表明，低碳转型后，能效稳定性提高了1个等级，CO2、SO2、NOX和pm的减排稳定性提高了1 - 3个等级。研究成果为实际燃煤电厂的清洁低碳运行改造提供了重要参考。

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Influence of papermaking biomass co-firing on operation energy efficiency and gas emission stability of a coal-fired thermal power plant: A case study

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Influence of papermaking biomass co-firing on operation energy efficiency and gas emission stability of a coal-fired thermal power plant: A case study

Biomass co-firing is an effective strategy for improving the energy structure of coal-fired power plants and coping with the pressure of carbon reduction. To ensure that the main energy supply function of the power plant is unaffected, the actual operating energy efficiency and gas emission stability after biomass co-firing need to be evaluated. Therefore, the energy efficiency and gas emission stability of an operating coal-fired power plant after co-firing with papermaking biomass (sludge, biogas, and wood chips) were analyzed. The results showed that the biomass blending ratio of 14.09 % could meet the plant energy demand and increase the annual and comprehensive thermal efficiency by 12.38 % and 9.45 %, respectively. However, the energy efficiency and gas emissions of different co-firing processes were different. When sludge, biogas, and wood chips were co-fired, the energy efficiency and gas emission reduction effect were optimal, the average monthly comprehensive thermal efficiency was increased by 8 %, and the emission intensity of CO₂, SO₂, NO_X and PMs was reduced by 32.24 %, 57.14 %, 33.33 % and 41.33 %, respectively. In addition, the stability grade evaluation showed that after the low-carbon transition, the energy efficiency stability was improved by 1 grade, and the emission reduction stability of CO₂, SO₂, NO_X, and PMs was improved by 1–3 grades. The research results provide an important reference for the clean and low-carbon operation transformation of actual coal-fired power plants.

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来源期刊

Energy 工程技术-能源与燃料

CiteScore

15.30

自引率

14.40%

发文量

审稿时长

14.2 weeks

期刊介绍： Energy is a multidisciplinary, international journal that publishes research and analysis in the field of energy engineering. Our aim is to become a leading peer-reviewed platform and a trusted source of information for energy-related topics. The journal covers a range of areas including mechanical engineering, thermal sciences, and energy analysis. We are particularly interested in research on energy modelling, prediction, integrated energy systems, planning, and management. Additionally, we welcome papers on energy conservation, efficiency, biomass and bioenergy, renewable energy, electricity supply and demand, energy storage, buildings, and economic and policy issues. These topics should align with our broader multidisciplinary focus.