Flue Gas Treatment Systems Market Report 2026

The flue gas treatment systems market size has grown strongly in recent years. It will grow from $74.31 billion in 2025 to $78.34 billion in 2026 at a compound annual growth rate (CAGR) of 5.4%. The growth in the historic period can be attributed to expansion of waste-to-energy facilities, tightening air emission regulations, growth in industrial combustion processes, rising investments in pollution control infrastructure, increasing focus on environmental compliance.

The flue gas treatment systems market size is expected to see strong growth in the next few years. It will grow to $96.45 billion in 2030 at a compound annual growth rate (CAGR) of 5.3%. The growth in the forecast period can be attributed to increasing adoption of next-generation emission control systems, expansion of industrial decarbonization initiatives, rising investments in retrofitting aging plants, growing demand for mercury and dioxin control solutions, increasing integration of digital monitoring systems. Major trends in the forecast period include increasing deployment of advanced emission control technologies, rising integration of multi-pollutant treatment systems, growing adoption of energy-efficient flue gas cleaning solutions, expansion of modular and scalable treatment configurations, enhanced focus on regulatory compliance systems.

The growth of the flue gas treatment systems market is expected to be supported by expanding liquefied natural gas production. LNG production facilities typically involve combustion processes, which can generate emissions such as nitrogen oxides (NOx) and carbon dioxide (CO2). Flue gas treatment systems help reduce and control these emissions, enabling compliance with environmental regulations. Liquefied Natural Gas (LNG) is natural gas that has been cooled to around -162 degrees Celsius (-260 degrees Fahrenheit), causing it to transition from a gaseous to a liquid state. Small LNG distribution stations require compact, high-efficiency cryocoolers to reliquefy boil-off gas in storage tanks. For example, in January 2024, the US Energy Information Administration (EIA) reported that US LNG exports grew by 12% in 2023, averaging 11.9 billion cubic feet per day, making the United States the largest LNG exporter worldwide. Consequently, the expansion of liquefied natural gas production is driving the growth of the flue gas treatment systems market.

Major companies in the flue gas treatment systems market are concentrating on creating innovative solutions, such as compact emission control devices, to assist customers in complying with genset emission regulations and minimizing environmental impact by reducing harmful exhaust emissions. A compact emission control device is a specialized system designed to significantly diminish harmful exhaust emissions from engines or industrial processes, typically characterized by its small size and high efficiency in filtering pollutants like particulate matter and nitrogen oxides. For example, in September 2024, Cummins India Limited, an India-based manufacturer of diesel and natural gas engines, introduced the Retrofit Aftertreatment System (RAS). This system reduces Particulate Matter (PM), Carbon Monoxide (CO), and Hydrocarbon (HC) emissions from genset exhaust by up to 90% while maintaining a compact and cost-efficient design. Its Diesel Oxidation Catalyst and Particulate Filter technology ensure compliance with stringent emission regulations, promoting cleaner air and lower maintenance costs.

In February 2025, ANDRITZ AG, an Austria-based technology company, acquired LDX Group for an undisclosed sum. Through this acquisition, ANDRITZ AG aims to enhance its environmental solutions portfolio by incorporating LDX Group’s advanced water and wastewater treatment technologies, strengthening global service offerings and sustainability solutions for both industrial and municipal clients. LDX Group is a US-based firm specializing in environmental engineering solutions, including water and wastewater treatment technologies.

Major companies operating in the flue gas treatment systems market are Babcock & Wilcox Enterprises Inc., Clyde Bergemann Power Group, FLSmidth & Company A/S, General Electric Company, Mitsubishi Hitachi Power Systems Limited, Thermax Limited, Siemens AG, Agilis Technology Ltd., KSB SE & Co KGaA, Howden Group Limited, Sodimate Inc., B&W MEGTEC LLC, BASF SE, Bilfinger SE, Bionomic Industries Inc., CECO Environmental Corp., Dürr AG, Envirotherm GmbH, Fisia Babcock Environment GMBH, Hitachi Zosen Corp., Neumann Systems Group Inc., Steag SCR-Tech Inc., Suez SA, Sulzer Chemtech Ltd., Veolia SA.

Asia-Pacific was the largest region in the flue gas treatment systems market in 2025. The regions covered in the flue gas treatment systems market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the flue gas treatment systems market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The flue gas treatment systems market consists of sales of volatile organic compounds, dioxins, and furans. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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