TopClaus® - minimize your sulfur recovery costs with a two-in-one solution
With our innovative TopClaus® solution, you get the best of two proven and well-known technologies: Claus and WSA.Download
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
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:
The TopClaus® technology has been developed by TOPSOE™ and Comprimo, the leading licensor in gas treating and sulfur recovery technology. Learn more about Comprimo here.