SCR脱硝催化剂是一类促使还原剂在适宜温度下与烟气中的氮氧化物（NOx）发生选择性催化还原反应的催化材料，目前已广泛应用于火力发电、钢铁、生物质发电、垃圾焚烧、水泥、焦化等行业的烟气脱硝治理工程。按照结构形态划分，SCR脱硝催化剂主要可分为平板式与蜂窝式两大类。
现阶段SCR脱硝催化剂的应用正从传统火电单一场景向钢铁、水泥、垃圾焚烧及生物质发电等非电多场景全面延伸，未来增长动力来自水泥行业超低排放改造政策集中落地、钢铁行业存量催化剂更换需求稳定释放、以及CO氧化催化剂与SCR脱硝催化剂一体化协同治理趋势的加速推进。整体来说，多行业超低排放政策的深化落地与场景结构转型是推动中国SCR脱硝催化剂市场规模持续增长的核心驱动力。
中国SCR脱硝催化剂市场总规模从2021年的63.1亿元增长至2030年的150.2亿元，实现翻倍以上增长。其中，火电场景市场规模由2021年的46.5亿元平稳增长至2030年的54.1亿元；钢铁场景由2021年的7.1亿元快速增长至2025年的28.7亿元，复合年增长率达41.6%；水泥场景市场规模由2024年的6.6亿元跃升至2025年的15.2亿元，增长率高达51.7%，成为行业核心增量赛道。
SCR denitration catalysts are catalytic materials that facilitate the selective catalytic reduction of nitrogen oxides (NOx) in flue gas with reducing agents at appropriate temperatures. They are widely used in flue gas denitrification systems across thermal power generation, steel, biomass power, waste incineration, cement, and coking industries. By structural form, SCR denitration catalysts are primarily classified into plate-type and honeycomb-type categories.
Currently, SCR denitration catalyst applications are rapidly expanding from traditional thermal power scenarios to non-power sectors including steel, cement, waste incineration, and biomass power generation. Future growth will be driven by the large-scale implementation of ultra-low emission policies in the cement industry, steady replacement demand for existing catalysts in steel applications, and the accelerating trend toward integrated CO oxidation and SCR denitration catalyst synergistic treatment. Overall, the deepening implementation of ultra-low emission policies across multiple industries and structural transformation of application scenarios serve as the core drivers for the sustained growth of China’s SCR denitration catalyst market.
The total market size of China’s SCR denitration catalysts grew from RMB 6.31 billion in 2021 to a projected RMB 15.02 billion by 2030, achieving more than a twofold increase. Within this, the thermal power segment grew steadily from RMB 4.65 billion in 2021 to RMB 5.41 billion in 2030; the steel segment surged from RMB 710 million in 2021 to RMB 2.87 billion in 2025, at a CAGR of 41.6%; and the cement segment leapt from RMB 660 million in 2024 to RMB 1.52 billion in 2025, a growth rate of 51.7%, emerging as the industry’s core incremental growth segment.
