The H2S scrubber is a crucial system designed to remove hydrogen sulfide from gas streams, It operates using chemical absorption or oxidation, typically involving a scrubbing solution such as sodium hydroxide (NaOH) or iron-based catalysts, which neutralize H2S and convert it into harmless byproducts like sulfur or sulfates. These scrubbers are widely used in industries such as petroleum refining, wastewater treatment, biogas processing, and paper manufacturing to prevent toxic gas emissions, reduce odor, and ensure workplace safety. H2S scrubbers help industries comply with environmental regulations while improving air quality and protecting equipment from corrosion.
Technical Specification
Parameter
Value
Air Flow
300 to 25,000 CFM
Material Of Construction
PP / FRP / PP+FRP / MS / SS
Removal Technique
Gas – Liquid Mass Transfer and Chemical Absorption
Pressure Drop
75 mm W.C.
Efficiency
Up to 99 %
Models and Options
MODEL NHS - 30
1. Air Handling Volume -- 400 CFM
2. Material Of Construction-- PP / FRP / PP+FRP / MS / SS
3. Removal Technique -- Gas – Liquid Mass Transfer and Chemical Absorption
4. Pressure Drop --75 mm W.C.
5. Filter Efficience -- 99%
MODEL NHS - 45
1. Air Handling Volume -- 1000 CFM
2. Material Of Construction-- PP / FRP / PP+FRP / MS / SS
3. Removal Technique -- Gas – Liquid Mass Transfer and Chemical Absorption
4. Pressure Drop --75 mm W.C.
5. Filter Efficience -- 99%
MODEL NHS - 60
1. Air Handling Volume -- 2000 CFM
2. Material Of Construction-- PP / FRP / PP+FRP / MS / SS
3. Removal Technique -- Gas – Liquid Mass Transfer and Chemical Absorption
4. Pressure Drop --75 mm W.C.
5. Filter Efficience -- 99%
MODEL NHS - 75
1. Air Handling Volume -- 3000 CFM
2. Material Of Construction-- PP / FRP / PP+FRP / MS / SS
3. Removal Technique -- Gas – Liquid Mass Transfer and Chemical Absorption
4. Pressure Drop --75 mm W.C.
5. Filter Efficience -- 99%
Application
Petroleum Refineries – Removal of H2S from process gases, crude oil storage, sulfur recovery units.
Natural Gas Processing Plants – Sweetening of gas streams by scrubbing toxic H2S.
Biogas Plants – Eliminating H2S from biogas to protect engines and upgrade methane quality.
Wastewater Treatment Plants (WWTPs) – Controlling H2S odors from sludge digestion and sewer vents.
Pulp & Paper Mills – Scrubbing H2S emissions from pulping and bleaching processes.
Tanneries & Leather Processing – Removing H2S generated during chemical treatment of hides.
Food Processing Units (Fish & Meat) – Controlling odor and toxic H2S emissions from waste handling.
Fertilizer & Chemical Plants – Neutralizing H2S formed in ammonium phosphate and sulfuric acid production.
Coke Oven & Steel Plants – Scrubbing H2S from coke oven gas and process off-gases.
Landfills & Solid Waste Management – Removing H2S from landfill gas and leachate treatment systems
Accessories
Packed Bed Media (PP, PVDF) – Provides a large surface area for gas–liquid contact to absorb H2S.
Spray Nozzles (Acid/Alkali Resistant) – Distribute scrubbing solution evenly for efficient gas absorption.
Recirculation Pump (FRP/PVDF Lined) – Circulates caustic or neutralizing solution through the scrubber.
Mist Eliminator / Demister Pad – aptures fine mist or droplets from the treated exhaust.
Chemical Dosing System (NaOH, Oxidants) – Supplies neutralizing agents to remove H2S.
pH & ORP Monitoring Sensors – Ensure the scrubbing liquid maintains correct chemical conditions.
Gas Detectors / H2S Sensors – Monitor inlet and outlet gas streams for safety and efficiency.
Corrosion-Resistant ID Fan / Blower (FRP, PVC, PP) – Maintains required airflow and suction.
Control Panel / PLC with Safety Alarms – Automates scrubber operation and ensures system protection.
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