Industry • Chemical

Advanced Emission Control for the Chemical Industry

Q: Which contaminants can wet scrubbers remove in chemicals?

Acid/alkali gases (HCl, HBr, HF, NH3), oxidants (Cl2/ClO2), SO2/NOx, H2S/mercaptans and particulate-laden streams (with venturi stages).

Q: How do you select materials of construction?

We select PP/PE, PVC-C, FRP, PVDF/PTFE or special alloys based on chemistry, temperature and pressure to balance resistance, lifetime and cost.

Chemical processing can release acid and alkaline gases, oxidants, NOx/SOx, ammonia, reduced sulfur compounds and VOCs. Ravebo designs and builds tailored wet scrubber systems and multi-stage abatement trains for high removal efficiency, reliable uptime and safe, compliant operation.

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Why emission control is critical in chemicals

The sector handles hazardous compounds and corrosive media. Robust abatement protects people, assets and the environment — and keeps operations compliant and continuous.

Regulatory compliance
Meet IED/BREF and local emission limits with audit-ready documentation.
Worker & community safety
Capture toxic and odorous gases before release.
Asset protection
Reduce corrosion on ducts, stacks and downstream equipment.
Operational continuity
Stable, controllable abatement with predictable OPEX.

Key challenges in chemical processing

From corrosive gases to particulate-laden streams, chemical off-gas requires robust, predictable abatement.

Top challenges

Corrosive acid/alkali gases
HCl, HBr, HF, Cl₂, SO₂, NH₃ and more.
Variable loads & peaks
Start-ups, batches and upset conditions.
Gas + particulate streams
Need for combined venturi + packed bed.
Materials & safety
Correct plastics/alloys, ATEX, effluent handling.

Chemical plant utilities and process off-gas

Ravebo solutions for the chemical industry

We configure abatement trains for each process: single or multi-stage wet scrubbers with the right chemistry, hydraulics and materials for predictable, compliant performance.

Multi-stage scrubbing

Acid, alkali and oxidation/reduction stages for complex gas mixes (e.g. NaOH, H₂SO₄, NaOCl, NaHSO₃).

Venturi & particulate control

High-energy venturi for dust/aerosols, followed by packed beds for gas absorption.

Materials & construction

PP, PE, PVC-C, FRP, PVDF/PTFE or special alloys (e.g. Hastelloy) for chemical and temperature resistance.

Monitoring & control

Inline pH/ORP/conductivity, flow & level control, redundancy and predictive maintenance options.

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Packed-bed scrubber train at chemical facility

Case Study

HCl/Cl₂ abatement at chlor-alkali plant

Process vents contained hydrochloric acid and chlorine. Ravebo delivered a two-stage system: alkaline absorption followed by polishing with reductant. The system integrates with existing controls and blowdown treatment.

>99% HCl and >98% Cl₂ removal
Low pressure drop and stable uptime
Full compliance with site emission permits

Why partner with Ravebo

Decades of chemical scrubbing expertise, Dutch engineering and in-house manufacturing — from design to installation and aftercare.

40+ years of wet scrubbing experience
In-house engineering & production in the Netherlands
Proven performance across chemical segments

Ravebo engineering & manufacturing for chemical industry

Discuss your challenge with our scrubber specialist

Get targeted advice for emission reduction, corrosion control and regulatory compliance on your site.

Chemicals FAQ

Which contaminants can wet scrubbers remove in chemicals?

Acid/alkali gases (HCl, HBr, HF, NH₃), oxidants (Cl₂/ClO₂), sulfur/nitrogen oxides (SO₂/NOx), H₂S/mercaptans and particulate-laden streams (with venturi stages).

When do I need multi-stage scrubbing?

For mixed gas streams or when both gas absorption and particulate removal are required. Typical trains combine venturi + packed beds with acid/alkali/oxidation steps.

How do you select materials of construction?

Based on chemistry, temperature and pressure: PP/PE, PVC-C, FRP, PVDF/PTFE or special alloys (e.g. Hastelloy). We balance resistance, lifetime and cost.