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    TopClaus™ technology

    TopClaus™ technology

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    Reduces CO2-footprint of sulfur recovery

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    Simplified sulfur recovery efficiency (SRE) compliance

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    Improves the bottom line

    Minimize sulfur recovery costs

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

    TopClaus combines conventional Claus technology from Comprimo with the proven Wet gas Sulfuric Acid (WSA) process from Topsoe to create a reliable and energy-efficient sulfur recovery unit. The result is a solution that will simplify sulfur recovery efficiency (SRE) compliance, reduce your CO2 footprint, and improve your bottom line.

    Meet increasing industry demands

    Claus installations with tail gas treatment in refineries and elsewhere are expected to reach SRE levels of 99.9 percent or more. Compliance with this requires an amine-based tall gas treatment unit (TGTU) to be placed downstream of the Claus unit.

    It’s no secret that TGTUs are relatively expensive to install and operate. They also require high energy consumption to regenerate amine and incinerate the remaining H2S in a thermal oxidizer. That all adds up to high compliance costs and a larger environmental footprint.

    With TopClaus, SRE compliance is more straightforward than it is with a conventional TGTU. The solution significantly reduces the CO2-footprint of sulfur recovery, eliminating the need for amine regeneration and fuel gas to incinerate the tail gas.

    In a TopClaus unit it is possible to bypass ammonia-containing streams directly to the WSA unit. This avoids common ammonia issues in Claus units for higher reliability.

    The TopClaus™ process

    1000xN_License_TopClaus_diagram Claus unit_v2

     

    1000xN License_TopClaus_diagram WSA unit

     

    How it works

    TopClaus™ is a combination of the Claus desulfurizing process and the Wet gas Sulfuric Acid (WSA) process. Here’s how it works:

    1. Sour gas is treated in a simple, conventional Claus unit with 95–97% SRE to produce elemental sulfur.

    2. The Claus unit's tail gas proceeds to the WSA unit, where the remaining sulfur compounds are removed to yield a total SRE of 99.9 to 99.99%.

    3. The small amount of sulfuric acid produced in the WSA unit is returned directly to the Claus unit’s reaction furnace and reprocessed to elemental sulfur. This process allows all sulfur products to be produced in the form of elemental sulfur only. Thanks to TopClaus™, flexibility, operators can also choose to export or consume the commercial-grade acid produced by the WSA unit.

    Definition

    Catalysts

    Catalysts can accelerate chemical reactions, control selectivity, and reduce energy requirements. Their ability to optimize process efficiency and product quality make them indispensable in industrial processes.

    Definition

    Outputs

    The output is the result or end product you're looking to get out of your refinery or chemical process. The output helps determine which technologies and catalysts you need.

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    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.