Sulfur Recovery Unit Solutions and Process Control

Maintain reliable and safe sulphur recovery operations

Maintaining refinery throughput while ensuring availability and safe operation is key.

Sulfur Recovery Units (SRUs) are critical refinery processes used to convert hydrogen sulfide (H2S) into elemental sulfur while reducing sulfur emissions and supporting environmental compliance.

The performance of a refinery’s sulfur recovery unit directly affects throughput, reliability, safety, emissions compliance, and operating profitability. ECI provides instrumentation, valves, analyzers, regulators, and process-control solutions to help operators improve sulfur recovery performance, maximize sulfur plant reliability, and maintain emissions compliance.

What Is a Sulphur Recovery Unit?

A sulfur recovery unit, or SRU, converts hydrogen sulfide generated in refinery and gas-processing operations into recoverable elemental sulfur.

Most modern sulfur recovery units use the Claus process, often combined with tail-gas treatment technologies, to improve sulfur recovery efficiency and reduce emissions. Maintaining the proper ratio of hydrogen sulfide to combustion air helps avoid the release of excessive hydrogen sulfide or sulfur dioxide.

ECI’s experts can help ensure that sulfur recovery processes are supported by reliable instrumentation, process control, and safety-focused technologies.

Claus Process Control and Optimization

The Claus process serves as the foundation of most refinery sulfur recovery units. Maintaining the proper air-to-hydrogen-sulfide ratio, combustion conditions, and process temperatures is essential for maximizing sulfur recovery efficiency while minimizing sulfur dioxide emissions.

ECI can help evaluate the process-control and measurement requirements of your Claus unit and identify solutions that support stable operation, reliable performance, and emissions compliance.

Get in touch with an expert, find the nearest ECI location or send us a note about your next project.

Talk to one of our experts

724-746-3700

+

Talk to an expert

Acid Gas Control

When storing or moving acid gas, maintaining plant balance is essential for minimizing safety risks to personnel and the environment.

ECI’s measurement solutions provide high accuracy and high turndown capability for acid gas applications. Our level and flow-control technologies can help reduce the occurrence of fugitive emissions and support more consistent plant operation.

Acid Gas Control Outcomes

Our solutions help you:

Maintain accurate acid gas measurement
Support a high turndown ratio
Maintain plant balance
Reduce the occurrence of fugitive emissions
Minimize safety risks to personnel and the environment
Improve acid gas storage and transfer control

Control, Measurement, And Safety Technologies

ECI can help identify the appropriate technologies for your sulfur recovery unit and acid gas control requirements, including:

Control valves
Fisher control valves
Pressure regulators
Flow measurement
Gas analyzers
Process instrumentation
Process automation
Safety systems
Level-control technologies
Emissions-monitoring solutions

Technology recommendations should be matched to the process conditions, measurement requirements, control objectives, and safety needs of the specific application.

FAQs

A sulfur recovery unit converts hydrogen sulfide into elemental sulfur while reducing emissions.

SRU stands for Sulfur Recovery Unit, a critical refinery process that supports throughput, safety, and environmental compliance.

The Claus process is the primary sulfur recovery technology used in most modern sulfur recovery units.

SRU performance can directly affect refinery throughput, environmental compliance, and operating profitability.

Sulfur Recovery Unit Solutions and Process Control