Sulfur Plant Control

Emerson Process Management can provide the most cost-effective solutions for sulfur recovery control and optimization in gas plants and refineries. Emerson Process Management's Hydrocarbon and Energy Industry Center's head office is located in one of the richest sulfur-producing areas in the world. Western Canada produces over 30,000 metric tons per day of petroleum-derived sulfur, and has over 60 sulfur recovery plants with a combined sulfur production design capacity of over 50,000 metric tons per day. Emerson Process Management has performed the instrumentation and control system engineering through startup on many of those plants, ranging from 10 metric tons per day to 3,000 metric tons per day. Our expertise includes:

• Two stage and three stage Claus process
• Super Claus process
• Scot tailgas cleanup process
• Sulfreen process
• MCRC process
• ELSE process
• Improved regulatory and advanced control strategies for sulfur recovery and processing, including:
  • Implementation of pressure- and temperature-compensated air to acid gas ratio control
  • Implementation of air demand analyzers for control of air trim valves or, on small plants, biasing the air/acid gas ratio
  • Stoichiometric control of reheat burners in the first, second, and third reaction stages of sulfur plants
  • Burner management for reaction furnaces and reheat burners

In addition to sulfur recovery control system expertise, Emerson Process Management has considerable expertise in related areas including:

• Sour gas and H2S safety and shutdown systems
• Sulfur loading control and measurement
• Sour gas pipeline monitoring, control, leak detection, and safety shutdown
• Sour gas well production monitoring and control

The end result of Emerson Process Management's' sulfur expertise is a cost-effective, fit-for-purpose solution for your most demanding sulfur process requirements, whether in a gas plant, a refinery, a loading terminal, a pipeline, or a production facility.

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