Stationary H2S Gas Detection Solution for Oil Refineries

Wireless and Hardwired Hydrogen Sulfide Detection

Multivariable Transmitter monitoring differential pressure, static pressure, and temperature.

Highly Scalable H2S Detection System

Hydrogen sulfide (H2S) gas is a hazardous substance often found in crude oil, natural gas, and other petroleum products that poses significant risks, requiring continuous monitoring to ensure worker safety and regulatory compliance. H2S can be a byproduct of the reining process, typically during the desulfurization of fuels. Due to the extreme toxicity of the gas, careful management and monitoring of H2S levels is required to ensure safety.

OleumTech offers a scalable H2S gas detection solution, allowing operators to strategically install H2S nodes in specific areas where the gas may be present. These nodes continuously monitor the air for H2S, triggering alarms if levels exceed safe limits. This highly scalable solution provides operators with maximum flexibility to accommodate any refinery size and layout. For hard-to-reach areas where running conduit and wire is challenging, the battery-powered, self-contained wireless transmitter is ideal. Meanwhile, the hardwired version with Modbus output is suitable for areas adjacent to SCADA systems with easy access to external power.

Product Solutions

HW-H2S | WT-H2S | WT-H2S-A  Hydrogen Sulfide Transmitters

Refineries may emit H2S during operations. OleumTech H2S detection transmitters are deployed to constantly monitor areas such as crude units, catalytic cracking units, and sulfur recovery units to generate alarms when H2S concentration levels exceed user-configured setpoints.

  • H2S measurement range: 0.0 to 100.0 ppm (200.0 ppm optional)
  • Resolution: 0.1 ppm
  • Field replaceable sensor module
  • RS485 Modbus Interface
  • 2 configurable alarm setpoints: high and high-high
  • 2 alarm status DOs (Solid State Relay), HW-H2S and WT-H2S-A options only
  • Field calibratable, 2 points (zero and custom: 10-50 ppm)