Skip to content
Contact us
Knowledge & insights
Solutions
News & events
About
Careers
Investors
Contact us
    Select language
    refinery sulfur

    Sulfur removal

    Protect your profit! Our Smarter Sulfur Solutions offer the crystal ball you need to tackle sulfurous emissions successfully.

    Contact us

    Proven expertise, innovative technologies, and tailored sulfur solutions.

    Block icon

    Solutions tried and tested across various industries.

    Block icon

    Lower environmental impact from reduced emissions.

    Block icon

    Optimized for cost-effectiveness to protect your profit.

    sulfur removal

    Deal with sulfurous emissions effectively

    Our Smarter Sulfur Solutions give you the know-how, technology, and services you need to keep your operation compliant and running smoothly. Each solution is optimized for a cost-effective lifecycle to protect your profit. 

    Our solutions are already in place in several industries, including oil refining and natural gas, viscose, pulp and paper, metallurgy, and carbon black. 

    Smarter Sulfur Solutions can help you:

    • Deal with sulfurous off gasses and waste streams

    • Reduce emissions

    • Recover sulfur as sulfuric acid

    • Improve efficiency

    • Lower environment impact

    No matter the industry, planning requires forward-thinking that takes both compliance and profitability into consideration. Our solutions give you the crystal ball needed to deal with sulfurous emissions effectively and efficiently. 

    Our Smarter Sulfur Solutions

    2000x1125 License_WSA_topbanner-1-1

    Wet-gas sulfuric acid (WSA™)

    Turn your sulfurous gasses into commercial-grade sulfuric acid (typically 98% concentration) and generate high-pressure superheated steam for use elsewhere.

    2000x1125 License_SNOX_topbanner-1-1

    SNOX™

    Reduce your costs for flue gas emissions compliance. Remove SOx, NOx, and particulates from flue gases at significantly reduced cost while staying compliant – without generating waste.

    2000x1125 License_TopClaus_topbanner

    TopClaus™

    Lower your ownership costs, protect your profit and stay compliant with TopClaus™ technology, an innovative solution that combines two proven technologies.

    2000x1125 License_SweetPlus_topbanner

    SweetPlus™

    Turn waste into profit! The unique process lets you monetize otherwise hard-to-utilize sour fuel gas by converting it into fuel.

    2000x1125_License_SmartSAR_topbanner

    SmartSar™

    A cost-effective and well-proven spent acid regeneration (SAR) technology that produces no waste and is highly energy efficient.

    Sulfurous emissions standards are tightening worldwide, forcing industrial, chemical, refining, and metallurgical operat...

    How our smarter sulfur solutions are solving your industry's challenges

    Pulp and viscose production

    • Recover sulfur from sulfurous off-gases such as CNCG, lean gases, and H2S-rich gases, as sulfuric acid for reuse within the site or plant

    • Increase sulfuric acid production by adding molten sulfur to meet the plant's consumption

    • Minimize chemical import to the plant through efficient recovery or recycling

    Oil refining and natural gas

    • Convert sour off-gases into valuable sulfuric acid or elemental sulfur

    • Regenerate alkylation spent acid via a waste-free, energy efficient process

    • Remove harmful pollutants from flue gas without consuming limestone or generation waste materials

    Metallurgy

    • Convert SO2 off-gases into sulfuric acid for reuse or a new revenue stream

    • Gain a reliable solution for SO2 emissions control to meet requirements and reduce the risk of environmental damage

    • Treat fluctuating SO2 off-gases at high and low SO2 concentrations reliably

    Carbon black

    • Minimize SO2 emissions while producing sulfuric acid as a new revenue stream

    • Handle Particulate matter emissions in a reliable unit for reduced environmental impact

    • Increase plant efficiency through improved heat recovery

    topsoe-welcomes-ines-kolmsee-and-susana-quintana-plaza-to-its-board-of-directors

    What we deliver

    Topsoe offers a full range of solutions for dealing with sulfur emissions. When you partner with us, you gain access to a comprehensive range of technical services and innovative solutions that are designed to comply with increasingly stringent emissions standards. We also deliver licensing, basic engineering, and connected analytics services – and we offer the industry’s most extensive and advanced range of catalysts.

    Dive deeper into sulfur removal

    Sulfuric acid production

    Protect your profit with cost-effective sulfuric acid production solutions.

    Spent acid regeneration

    Maximize profits and sustainability with advanced Spent Acid Regeneration technology.

    Sulfur recovery

    If you are looking for solutions to help you stay on top of sulfur recovery efficiency, our sulfur recovery technologies are a great place to start. 

    Flue gas treatment

    Streamline your operations and lower your carbon footprint with Topsoe's SNOX™ flue gas treatment.

    Treatment of sulfurous off-gasses

    Remove sulfur, comply with regulation through our off-gas treatment.

    Highlights

    SNOX™ technology solves SO2, NOx, and dust challenge for ENI
    Customer case

    SNOX™ technology solves SO2, NOx, and dust challenge for ENI

    Get the story of how ENI was able to meet its emission targets and achieve an average reliability factor of 99% over ten years of operation.
    Get full details
    WSA plant helps Sokolovská Uhelná meet emission standards
    Customer case

    WSA plant helps Sokolovská Uhelná meet emission standards

    Get the story of how Sokolovská Uhelná has been meeting increasingly stringent emission requirements since 1993 thanks to its WSA plant. In addition to sulfur removal, the plant produces valuable steam using heat recovered from combustibles in the acid gas.
    Get full details
    Pure protective power for high sulfur concentrations
    Leaflet

    Pure protective power for high sulfur concentrations

    The HTZ-3 is a high-density zinc oxide absorbent for feedstocks with high sulfur concentrations. Proven at numerous facilities around the world, it will give your plant a cost-effective, reliable means of protecting downstream catalysts from sulfur.
    Get full details

    Related Videos

    TopClaus™ video

    TopClaus™ optimizes Claus™ unit sulfur recovery, enhancing efficiency and profitability. Watch the video to learn how TopClaus™ can elevate your plant's performance.

    Webinar: TopClaus® - New State of the Art in Sulphur Recovery

    TopClaus® combines two technologies, well-known to refinery operators; the Claus technology from Comprimo and the Wet gas Sulfuric Acid (WSA) process from Topsoe. Together forming a highly ...

    Protect your profit with our Smarter Sulfur Solutions

    Sulfurous emissions standards are tightening worldwide, forcing industrial, chemical, refining, and metallurgical operations to compromise profitability to meet legal requirements. Sometimes ...

    WSA - Wet gas Sulfuric Acid for metallurgical applications

    Meet Gabriel Gutiérrez Claverí, Gerente General from Molyb that depends on Topsoes WSA technology.

    Related solutions

    Catalytic particulate filtration

    Catalytic particulate filtration

    Combine particulate filtration with other systems to reduce complexity and total cost of ownership.

    VOC removal

    VOC removal

    Catalytic oxidation provides an affordable path to VOC compliance.

    VK catalysts for sulfuric acid

    Sulfuric acid

    Take performance to its peak while keeping sulfur dioxide (SO2) emissions at an all-time low.

    tk-49

    Catalysts for desulfurization

    Our portfolio of purification and desulfurization catalysts protects your expensive downstream catalysts and equipment.

    bofu-cta-row-image bofu-cta-row-image

    Contact us

    Do you have a question about our products or solutions? Or do you want to know how our technologies can support your business? Contact our experts today.

    Contact us

    View transcript