The Global Desulfurization and Denitrification Market was valued at USD 16.4 Billion in 2024 and is projected to reach USD 24.3 Billion by 2029, growing at a Compound Annual Growth Rate (CAGR) of 6.8% during the forecast period (2024–2029). This growth is being driven by stringent environmental regulations worldwide, growing emphasis on reducing industrial air pollution, and increasing investments in clean air technologies across power generation, cement, and manufacturing sectors.

As global industrial activity intensifies and environmental compliance standards tighten, the demand for effective flue gas treatment systems has surged dramatically. In this blog, we profile the Top 10 Companies in the Desulfurization and Denitrification Industry—a mix of global technology leaders and regional specialists developing advanced solutions to control SOx and NOx emissions.

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🔟 1. Longking Co., Ltd.

Headquarters: Longyan, Fujian, China
Key Offering: Flue Gas Desulfurization (FGD) Systems, Selective Catalytic Reduction (SCR) Systems

Longking is a global leader in air pollution control equipment, specializing in comprehensive desulfurization and denitrification solutions. The company provides integrated systems for power plants and industrial facilities, featuring advanced technologies like ammonia-based scrubbing and catalytic conversion processes.

Technological Capabilities:

• Proprietary ammonia desulfurization technology

• Customized SCR and SNCR solutions for NOx reduction

• Leading market share in China’s FGD and DeNOx sectors

Download FREE Sample Report: Desulfurization and Denitrification Market – View in Detailed Research Report

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9️⃣ 2. SPC (Sichuan Province Environmental Protection)

Headquarters: Chengdu, Sichuan, China
Key Offering: Wet FGD Systems, SCR Denitrification Systems

SPC specializes in environmental protection technologies with comprehensive desulfurization and denitrification solutions designed for coal-fired power plants and industrial boilers. The company has strong technical capabilities in both limestone-gypsum and ammonia-based processes.

Technological Capabilities:

• Advanced wet scrubbing FGD technology

• Integrated desulfurization-denitrification systems for maximum efficiency

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8️⃣ 3. Jiulong Machinery Co., Ltd.

Headquarters: Zhangjiagang, Jiangsu, China
Key Offering: Desulfurization Towers, Denitrification Reactors, Ammonia Injection Systems

Jiulong focuses on manufacturing key components for desulfurization and denitrification systems, including absorbers, reactors, and specialized equipment for emission control.

Technological Capabilities:

• Custom-designed FGD absorbers and SCR reactors

• Complete EPC services for air pollution control projects

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7️⃣ 4. Zhejiang Feida Environmental Science & Technology Co., Ltd.

Headquarters: Zhuji, Zhejiang, China
Key Offering: Baghouse Filters, FGD Systems, SCR Systems

Feida is a prominent player in China’s environmental protection sector, offering comprehensive air pollution control solutions including complete FGD and DeNOx systems.

Technological Capabilities:

• Integrated air pollution control systems

• Advanced fabric filter technology for particulate control

Download FREE Sample Report: Desulfurization and Denitrification Market – View in Detailed Research Report

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6️⃣ 5. Wuhan Kaidi Electric Power Environmental Co., Ltd.

Headquarters: Wuhan, Hubei, China
Key Offering: Complete FGD Systems, SCR Systems, Engineering Services

Kaidi specializes in electric power environmental protection, providing comprehensive FGD and denitrification engineering services and equipment manufacturing.

Technological Capabilities:

• Proprietary flue gas cleaning technologies

• Complete project lifecycle management for emission control systems

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5️⃣ 6. United Environment & Energy LLC

Headquarters: Amherst, New York, USA
Key Offering: Ammonia-Based Desulfurization, Electron Beam Flue Gas Treatment

United Environment & Energy is a technology-focused company developing advanced flue gas treatment solutions, including innovative approaches combining desulfurization and denitrification in single systems.

Technological Capabilities:

• E-beam flue gas treatment technology for simultaneous SOx/NOx removal

• Research and development in next-generation emission control technologies

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4️⃣ 7. Beijing Guodian Longyuan Environmental Engineering Co., Ltd.

Headquarters: Beijing, China
Key Offering: Complete FGD Systems, SCR Systems, Engineering Consulting

Longyuan specializes in environmental engineering solutions for the power industry, offering comprehensive desulfurization and denitrification systems with advanced control technologies.

Technological Capabilities:

• Advanced ammonia injection and catalytic reduction systems

• Strong focus on R&D for improved efficiency and cost-effectiveness

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3️⃣ 8. Beijing BOQI Water Co., Ltd.

Headquarters: Beijing, China
Key Offering: Wet FGD Systems, SCR Systems, Environmental Engineering

BOQI provides integrated environmental solutions including desulfurization and denitrification systems, with particular expertise in power plant applications and large-scale industrial projects.

Technological Capabilities:

• Comprehensive FGD and DeNOx engineering services

• Integration of multiple pollution control technologies in single systems

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2️⃣ 9. Sanrong Environmental Technology Co., Ltd.

Headquarters: Nanjing, Jiangsu, China
Key Offering: FGD System Components, SCR Catalysts, Engineering Design

Sanrong focuses on environmental technology development and equipment manufacturing, providing specialized components and systems for desulfurization and denitrification applications.

Technological Capabilities:

• Advanced catalyst technology for NOx reduction

• Custom engineering solutions for specific industrial requirements

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1️⃣ 10. Beijing Combustion Control Technology Co., Ltd.

Headquarters: Beijing, China
Key Offering: SCR Systems, SNCR Systems, FGD System Integration

Combustion Control Technology specializes in advanced NOx reduction technologies, providing both SCR and SNCR systems for various industrial applications.

Technological Capabilities:

• Low-NOx combustion technology and post-combustion treatment systems.

• Strong technical expertise in combustion optimization and emission control

Get Full Report Here: Desulfurization and Denitrification Market – View in Detailed Research Report

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🌍 Outlook: The Future of Desulfurization and Denitrification is Smarter and More Integrated

The desulfurization and denitrification market is undergoing a significant transformation. While conventional technologies still dominate installations, the industry is rapidly adopting integrated multi-pollutant control systems, advanced catalyst technologies, and digital monitoring solutions to enhance efficiency and reduce operational costs.

📈 Key Trends Shaping the Market:

• Shift toward integrated desulfurization-denitrification systems for cost and space efficiency

• Increasing adoption of dry sorbent injection and advanced SCR catalysts

• Digitalization of emission monitoring and control systems using IoT and AI

• Growing emphasis on byproduct recovery and utilization from FGD and DeNOx processes

Get Full Report Here: Desulfurization and Denitrification Market – View in Detailed Research Report

The companies listed above are not only providing emission control solutions—they’re driving the clean air revolution in global industrial operations.