Case Study

Emergency Chlorine Scrubber

Details

Location

United Kingdom

End User

Nufarm

Application

Contract Completed

2024

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Emergency Chlorine Scrubber
Safety-Critical Absorber Design for Emergency Chlorine Release
The Challenge

In 2025, a major UK chemicals operator initiated a project to install an emergency chlorine scrubber system, providing a critical safeguard in the event of an accidental chlorine release.

The system was required to safely capture and neutralise chlorine, helping to protect plant personnel, surrounding communities and the environment, while meeting the facility’s stringent safety and environmental requirements.

Our Solution

Rosenberg Process was engaged to support the process design and engineering of the chlorine absorber, a key component within the emergency scrubber system.

Our scope included detailed process calculations, hydraulic assessment and equipment selection, ensuring the absorber was appropriately designed for the required emergency release conditions.

Rosenberg applied its specialist mass transfer expertise to establish a technically robust solution capable of delivering the required chlorine removal performance under safety-critical operating conditions.

The Result

The engineering study provided the client with a verified process design and equipment basis for the emergency chlorine absorber, supporting the implementation of a reliable and compliant emergency scrubber system.

The project demonstrates Rosenberg’s capability to apply specialist gas absorption and mass transfer engineering to critical process safety applications.

Emergency Chlorine Scrubbing | Process Design | Gas Absorption | Safety-Critical Engineering

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Equipment

Products used in this case study

I PAK Final

I-PAK Random Packing

I-Pak™ Random Packing features a high-efficiency saddle geometry that provides excellent gas-liquid distribution, low pressure drop, and high hydraulic capacity. Designed for demanding mass transfer applications, it is ideal for distillation, absorption, stripping, and scrubbing processes where efficiency and throughput are critical.

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D-Mister knitted mesh mist eliminator pad

D-Mister Mist Eliminator

D-Mister™ Mesh Mist Eliminators use knitted wire mesh to capture, coalesce, and drain entrained liquid droplets from gas streams. Their high void fraction provides excellent separation efficiency with low pressure drop, making them ideal for process vessels, scrubbers, separators, and distillation columns.

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Random packing support plate with radial beam profile.

Random Packing Support Plate #1

Random Packing Support Plates form the structural base of a packed bed, carrying the weight of the packing and retained liquid while providing a high open area for counter-current gas and liquid flow. The support geometry retains the packing without unnecessarily restricting flow or increasing pressure drop through the column.

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Random packing bed limiter with mesh grid

Random Packing Bed Limiter

Random Packing Bed Limiters are installed above the packed bed to prevent packing elements from lifting or becoming displaced during operation. Their open-grid construction securely retains the packing without unnecessary compression while providing a high free area for unrestricted gas and liquid flow through the column.

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