Broad gas service
HCl, chlorine, SO₂, HBr, bromine, ammonia and mixed vents.
Gas Absorbers & Wet Scrubbers
Packed-bed and falling-film gas absorbers for HCl, chlorine, SO₂, HBr, bromine, ammonia and other corrosive vent gases.
UD Technologies · Vadodara, India
Corrosive gas treatment
Capture hazardous process gases before they reach the vent.
Wet scrubbers transfer soluble contaminants from a gas stream into a liquid absorbent. They control emissions from chlorination, bromination, acid reactions, liquid–gas processing and storage-tank vents.
UD Technologies designs packed-bed and falling-film absorbers around gas flow, composition, temperature, impurities and recovery target. The two technologies can also be installed in series where bulk removal and cooled high-concentration absorption are both required.
Two absorber types
Packed-bed and falling-film configurations.
Single or staged
Combine technologies for the required removal duty.
Engineered from gas data
Flow, composition, temperature and impurities drive design.
Salient features
Match mass transfer and heat removal to the gas stream.
Materials, utilities, controls and equipment arrangement are selected around the feed and required product.
Counter-current packed contact
Packing creates interfacial area between rising gas and descending liquid.
Cooled film absorption
Falling-film tubes remove absorption heat at its source.
Mixed-gas capability
Systems can address combinations of acid gas, halogen and organics.
Process vent control
Treat reactor exits, tank vents and liquid–gas process exhausts.
Recovery potential
Absorbed gas may form a reusable acid product.
Series arrangements
Use falling-film and packed stages together when appropriate.
Process configuration
Compare packed-bed and falling-film absorption.
Final capacity, materials and instrumentation are confirmed against the process data and site utilities.
Packed-bed gas absorber
Counter-current scrubbing through structured or random packing
Process characteristics
- Gas flow
- Upward through packing
- Liquid flow
- Downward counter-current absorbent
- Strength
- Flexible removal of contaminants from varied gas streams
- Key inputs
- Flow, component analysis, temperature and organic impurities
Falling-film gas absorber
Simultaneous absorption and cooling in vertical tubes
Process characteristics
- Gas and liquid
- Co-current laminar flow inside vertical tubes
- Cooling
- Cooling water on shell side removes absorption heat
- Typical gases
- Hydrogen chloride and hydrogen bromide
- HCl example
- Up to approximately 30% acid under suitable conditions
Related system
Review dedicated hydrogen-chloride absorption.
HCl-specific systems include adiabatic, isothermal and falling-film configurations with acid recovery.
Discuss your requirements