The Global Oil Refining Auxiliary Market was valued at approximately USD 3.8 Billion in 2023 and is projected to reach USD 5.2 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of around 4.1% during the forecast period (2024–2030). This sustained growth is primarily driven by the increasing global demand for refined petroleum products, the need to process heavier, more complex crude oil slates, and stringent environmental regulations that mandate cleaner fuel production and refinery emission reductions.

The efficiency and profitability of a modern refinery hinge significantly on the performance of specialty chemical additives known as refining auxiliaries. These essential products—including antioxidants, dispersants, corrosion inhibitors, and catalyst enhancers—optimize processes, protect critical equipment, and improve final fuel quality. In this blog, we analyze the Top 10 Companies in the Global Oil Refining Auxiliary Market, featuring a mix of global chemical giants, specialized energy solutions providers, and catalyst technology leaders.

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🔟 10. Innospec Inc.

Headquarters: Englewood, Colorado, USA
Key Offering: Fuel Performance Additives, Refinery Process Additives, Catalyst Protection

Innospec is a global specialty chemicals company with a dedicated Performance Chemicals segment serving the refinery industry. The company focuses on providing tailored additive packages that address specific refining challenges, such as preventing corrosion in distillation units, enhancing desalting efficiency, and protecting fluid catalytic cracking (FCC) catalysts from contaminants like vanadium and nickel.

Market Leadership & Innovation:

• Leading provider of refinery antifoulants and corrosion inhibitors.
• Strong focus on R&D for ultra-low sulfur diesel (ULSD) and biofuel processing additives.
• Global technical service network supporting refinery optimization.

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9️⃣ 9. Baker Hughes (Process & Pipeline Services)

Headquarters: Houston, Texas, USA
Key Offering: Refinery Process Chemicals, Asset Integrity Solutions, Catalyst Handling

As an energy technology company, Baker Hughes offers comprehensive chemical management programs under its Process & Pipeline Services division. Their refinery auxiliary solutions focus on maximizing throughput, improving product yields, and ensuring the mechanical integrity of assets through advanced monitoring and chemical treatment programs for heat exchangers, crude units, and wastewater systems.

Market Leadership & Innovation:

• Integrated chemical and engineering services for refinery asset performance.
• Digital solutions for real-time treatment monitoring and optimization.
• Expertise in high-temperature antifoulants and deposition control.

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8️⃣ 8. Chevron Phillips Chemical Company LLC

Headquarters: The Woodlands, Texas, USA
Key Offering: Specialty Chemicals, Catalyst Components, Process Aids

While primarily a major petrochemical producer, Chevron Phillips Chemical plays a vital role in the refining auxiliary value chain. The company supplies critical high-purity chemical intermediates used in the manufacture of performance additives and catalysts. Furthermore, with its focus on chemical processing, it offers expertise in process optimization aids that enhance refinery separations and purity.

Market Leadership & Innovation:

• Strategic supplier of key olefins and aromatics for additive synthesis.
• Advancements in production processes that benefit downstream chemical suppliers.
• Global supply chain reliability for refinery chemical manufacturers.

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7️⃣ 7. Akzo Nobel N.V. (Nouryon)

Headquarters: Amsterdam, Netherlands
Key Offering: Polymer Additives, Surfactants, Sulfur Chemicals

Operating as Nouryon following the specialty chemicals divestment, the company is a significant player in essential refining auxiliary chemicals. Nouryon provides crucial surfactants used in crude oil desalting and demulsification processes. Its portfolio also includes sulfur derivative chemicals vital for various refining applications and polymer modifiers that enhance fuel stability and properties.

Market Leadership & Innovation:

• World-leading producer of specialty surfactants for upstream and midstream oil treatment.
• Strong portfolio in mercaptans and other sulfur-based chemicals used in odorization and synthesis.
• Commitment to developing sustainable and bio-based surfactant alternatives.

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6️⃣ 6. Huntsman Corporation

Headquarters: The Woodlands, Texas, USA
Key Offering: Amines, Gas Treating Chemicals, Urethane Catalyst Systems

Huntsman’s Performance Products segment is critical to refinery operations, particularly in clean fuel production and gas treatment. The company is a major global supplier of amines, such as MEA, DEA, and MDEA, used in refinery amine units to remove acidic gases (H2S, CO2) from various process streams, ensuring product quality and meeting environmental sulfur limits.

Market Leadership & Innovation:

• One of the world’s largest merchant suppliers of amines for gas sweetening.
• Development of formulated amine blends that improve efficiency and reduce energy consumption in treating units.
• Extensive global production and supply infrastructure.

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5️⃣ 5. Solvay S.A.

Headquarters: Brussels, Belgium
Key Offering: Hydrogen Peroxide, Specialty Polymers, Rare Earth Stabilizers

Solvay provides high-value, specialty chemical solutions that serve as crucial refining auxiliaries. Its high-purity hydrogen peroxide is used in refinery wastewater treatment and for sulfur oxidation. The company’s specialty polymers and rare earth-based stabilizers are employed in catalyst formulations and as additives to improve fuel stability and prevent degradation during storage and transportation.

Market Leadership & Innovation:

• Leading innovator in peroxygen chemistry for environmental applications in refineries.
• Specialty materials for catalysis and advanced filtration.
• Focus on sustainable chemistry, including bio-sourced and circular solutions.

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4️⃣ 4. The Dow Chemical Company

Headquarters: Midland, Michigan, USA
Key Offering: Glycol Dehydration Agents, Separation Membranes, Corrosion & Scale Inhibitors, Polyglycols

Dow’s Industrial Solutions business provides a broad portfolio of functional chemicals and materials essential for refinery operations. Their offerings include advanced glycols used for gas dehydration, sophisticated membrane technologies for hydrogen recovery and olefin/paraffin separation, and comprehensive water treatment chemical programs to manage boiler and cooling water systems, crucial for refinery reliability and efficiency.

Market Leadership & Innovation:

• Global leadership in glycol-based dehydration and heat transfer fluids.
• Pioneering membrane technology for energy-efficient gas separation in refineries.
• Integrated solutions combining chemistry, materials science, and digital insights.

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3️⃣ 3. Evonik Industries AG

Headquarters: Essen, Germany
Key Offering: Precious Metal Compounds, Silica-Based Carriers, Antioxidants, Process Additives

Evonik is a powerhouse in high-performance materials and specialty additives for the refining industry. The company is a key supplier of critical components for catalyst manufacturing, including high-purity silica carriers and precious metal compounds. It also offers sophisticated antioxidant packages for lubricants and fuels and process additives that improve the efficiency of refining operations like dewaxing and purification.

Market Leadership & Innovation:

• World leader in high-purity fumed silica and specialty silica products used in catalysis.
• Strong position in the value chain for emission control and hydroprocessing catalysts.
• Advanced R&D in sustainable and high-efficiency process aids.

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2️⃣ 2. Clariant AG

Headquarters: Muttenz, Switzerland
Key Offering: Custom Catalysts, Adsorbents, Additives for Fuels & Lubricants

Clariant’s Catalysts business is a global leader in developing and manufacturing customized catalyst solutions for the refining industry. Their portfolio includes high-performance hydroprocessing catalysts (hydrotreating, hydrocracking), FCC catalysts and additives, and specialized adsorbents for purification. This positions Clariant directly at the heart of refinery optimization and clean fuel production.

Market Leadership & Innovation:

• Top-tier supplier of supported metal catalysts for sulfur and nitrogen removal.
• Innovations in catalysts for processing renewable feedstocks alongside crude oil.
• Strong technical service offering for catalyst loading, start-up, and performance monitoring.

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1️⃣ 1. BASF SE

Headquarters: Ludwigshafen, Germany
Key Offering: Comprehensive Catalyst Portfolio, Refinery Process Chemicals, Fuel & Lube Performance Additives

BASF stands as the undisputed leader in the global oil refining auxiliary market, primarily through its massive Catalysts division. The company offers one of the industry’s most comprehensive portfolios, spanning FCC catalysts, hydroprocessing catalysts, and adsorbents. Beyond catalysis, BASF provides a wide array of process chemicals, including corrosion inhibitors, antifoulants, and fuel additives that enhance refinery efficiency and product performance from crude intake to final fuel delivery.

Market Leadership & Innovation:

• World’s largest supplier of refining catalysts with a dominant market share.
• Integrated offer combining catalysts with performance chemicals for holistic refinery solutions.
• Heavy investment in R&D for digital catalyst services (e.g., OASE® suite), advanced materials, and technologies for carbon management in refining.

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🌍 Outlook: The Future of Refining Auxiliaries is Digital and Sustainable

The oil refining auxiliary market is undergoing a profound transformation, driven by the dual mandates of operational excellence and the energy transition. While traditional chemical additives remain essential, the future lies in intelligent, data-driven formulations and solutions that enable refineries to process diverse, challenging feedstocks—including bio-based oils—while reducing their carbon footprint.

📈 Key Trends Shaping the Market:

• Accelerated adoption of digital monitoring and AI-driven chemical dosing for predictive maintenance and optimization.
• Growing demand for specialized additives and catalysts for co-processing renewable feedstocks (e.g., vegetable oils, used cooking oil) in existing refinery units.
• Increasing focus on green or bio-based auxiliary chemicals to improve the sustainability profile of refining operations.
• Regulatory push for lower emissions and higher efficiency, driving innovation in hydrogen management, carbon capture-enabling chemicals, and energy-saving process aids.

The companies profiled above are not merely chemical suppliers; they are strategic partners enabling the global refining industry to operate more efficiently, reliably, and sustainably. Their continuous innovation in catalyst science and specialty chemistry is fundamental to meeting the world’s evolving energy and environmental needs.