Problem Statement

The sulfur recovery process involves many energy-intensive steps, where process streams must be heated and cooled to achieve conversion and sulfur removal. A bottlenecked sulfur recovery system can prevent processing of high sulfur feedstock leading to significant opportunity loss.

Tracking the sulfur content throughout the unit and considering catalyst degradation in the model of the SRU can help users better predict the performance.

Solution

The functionality available for decades as part of standalone Sulsim has been completely incorporated into Aspen HYSYS V9. AspenTech and Sulphur Experts have independently validated and verified that all pre-existing functionality works as designed in the Aspen HYSYS environment.

Added to Aspen HYSYS, the Sulsim property package, SRU sub-flowsheet environment, and unit operations can be used to accurately simulate all commercial process configurations for the Claus process with over 30 unit operations. Additionally, new features not available in the latest version of Sulsim were added in Aspen HYSYS V9.

Sulsim Sulfur Recovery adds to the recently added Acid Gas Cleaning technology in Aspen HYSYS. Optimizing the acid gas cleaning and sulfur recovery design and operations together can allow for more insight into the process, leading to better decision making. The two are closely connected and usually operate together creating process dependencies that cannot be efficiently optimized separately.

Learn about Sulsim Sulfur Recovery in Aspen HYSYS V9 with this 30-minute video.

Sulsim Sulfur Recovery in Aspen HYSYS V9 by Chad Mondor

Keywords

Sulfur Recovery, Claus Process, Sulsim, Sulphur Recovery, SRU