摘要
燃煤电厂是我国能源供应的重要支柱，但其排放的二氧化硫和氮氧化物对环境造成了严重污染，因此开发高效、经济的烟气脱硫脱硝一体化技术具有重要意义。本研究旨在针对传统脱硫脱硝工艺存在的设备复杂、能耗高及副产物处理困难等问题，提出一种基于新型复合吸收剂的烟气脱硫脱硝一体化技术。通过实验室模拟实验与工业中试验证，系统分析了吸收剂配方优化、反应条件调控以及副产物资源化利用等关键环节。结果表明，该技术在低温条件下仍能保持较高的脱硫脱硝效率，且运行成本显著低于现有技术。创新性地引入了一种可循环使用的复合吸收剂，其主要成分包括钙基材料与过渡金属催化剂，能够同时实现硫氧化物和氮氧化物的协同去除，并将副产物转化为高附加值的硫酸盐和硝酸盐产品。此外，本研究还建立了数学模型以预测和优化工艺参数，为实际工程应用提供了理论依据。最终结论显示，该技术具备良好的经济性和环境友好性，可为燃煤电厂的清洁生产提供新的技术路径。
关键词：烟气脱硫脱硝一体化；复合吸收剂；协同去除；副产物资源化；低温高效
Abstract
Coal-fired power plants are a crucial pillar of China's energy supply, yet the sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) emissions from these plants have caused severe environmental pollution. Consequently, the development of an efficient and economical integrated flue gas desulfurization and denitrification technology is of great significance. This study aims to address the issues of complex equipment, high energy consumption, and difficulties in byproduct disposal associated with traditional desulfurization and denitrification processes by proposing an integrated flue gas treatment technology based on a novel composite absorbent. Through laboratory simulation experiments and industrial pilot-scale verification, this research systematically analyzed key aspects such as absorbent formulation optimization, reaction condition control, and the resourceful utilization of byproducts. The results indicate that this technology maintains high desulfurization and denitrification efficiency even under low-temperature conditions, with significantly reduced operating costs compared to existing technologies. An innovative recyclable composite absorbent was introduced, primarily composed of calcium-based materials and transition me tal catalysts, which can simultaneously remove sulfur oxides and nitrogen oxides while converting byproducts into high-value-added sulfate and nitrate products. Additionally, a mathematical model was established to predict and optimize process parameters, providing a theoretical basis for practical engineering applications. The final conclusion demonstrates that this technology exhibits excellent economic viability and environmental friendliness, offering a new technical pathway for the clean production of coal-fired power plants.
Keywords：Integrated Flue Gas Desulfurization And Denitrification; Composite Absorbent; Synergistic Removal; By-Product Resource Utilization; Low-Temperature High Efficiency
目 录
摘要 I
Abstract II
一、绪论 1
(一) 燃煤电厂烟气治理背景与意义 1
(二) 脱硫脱硝一体化技术研究现状 1
(三) 本文研究方法与技术路线 2
二、脱硫脱硝一体化技术原理分析 2
(一) 燃煤烟气污染物特性研究 2
(二) 脱硫脱硝反应机理探讨 3
(三) 一体化技术关键参数分析 3
(四) 技术可行性评估 4
三、脱硫脱硝一体化工艺设计与优化 4
(一) 工艺流程设计原则与方法 4
(二) 主要设备选型与配置方案 5
(三) 工艺参数优化策略研究 5
(四) 经济性与环境效益分析 6
四、脱硫脱硝一体化技术应用案例研究 6
(一) 典型燃煤电厂案例介绍 6
(二) 案例中技术实施效果评估 7
(三) 存在问题及改进建议 7
(四) 推广应用前景分析 8
结 论 9
参考文献 10
