Product Overview
The Caustic Scrubber for H₂S Removal is a chemical absorption system designed to remove hydrogen sulfide (H₂S) from industrial gas streams using alkaline solutions such as sodium hydroxide (NaOH) or potassium hydroxide (KOH).
The system is widely used in natural gas processing, refinery gas treatment, biogas purification, and industrial exhaust gas desulfurization applications.
Technology
The scrubber operates through counter-current contact between H₂S-containing gas and circulating caustic solution inside a packed absorption tower.
Hydrogen sulfide chemically reacts with the alkaline solution to form soluble sulfide compounds, effectively reducing H₂S concentration and protecting downstream equipment from corrosion and contamination.
Process Flow
Gas Pretreatment → Caustic Absorption Tower → Mist Elimination → Purified Gas Output → Spent Caustic Treatment
Key Features
• High H₂S Removal Efficiency (≥99%)
• Stable Outlet H₂S Below 10 ppm
• Fast Response to Gas Composition Changes
• Corrosion-Resistant Construction
• Continuous Automated Operation
• Low Pressure Drop Design
Advantages
The H₂S scrubber system provides:
• Improved downstream equipment protection
• Reduced sulfur corrosion risk
• Enhanced environmental compliance
• Reliable gas purification performance
• Flexible capacity customization
• Long-term operational stability
Applications
Widely used in:
• Natural Gas Processing Plants
• Refinery Gas Treatment
• Biogas Purification Systems
• Sour Gas Processing
• Landfill Gas Treatment
• Chemical & Petrochemical Industries
Automation
The system supports fully automated operation with integrated monitoring for:
• Alkali concentration
• pH control
• Gas flow rate
• Differential pressure
• H₂S outlet concentration
Looking for a reliable H₂S removal solution?
Contact Crida engineering team for customized caustic scrubber systems designed for your gas treatment requirements.
