Scrubber for Industrial Exhaust Gas Cleaning

Product Specifications

Technical details and manufacturing context for Scrubber

Definition

A scrubber is a component used in chemical manufacturing and other industrial processes to control air pollution. It is part of an off-gas cleaning system and operates by bringing a contaminated gas stream into intimate contact with a liquid, typically water or a chemical reagent. This contact facilitates the transfer of pollutants—such as particulate matter, gases, or vapors—from the gas phase to the liquid phase through mechanisms including impaction, interception, diffusion, absorption, or chemical reaction. The cleaned gas is then released, while the contaminated liquid, known as scrubber effluent, is collected for treatment or disposal. Scrubbers are essential for meeting environmental regulations and ensuring compliance with emission standards. They are available in various configurations, such as spray towers, packed towers, or venturi scrubbers, depending on the application and the nature of the pollutants. The selection of a scrubber depends on factors like gas flow rate, removal efficiency requirements, operating pressure and temperature, pH range, liquid-to-gas ratio, and allowable pressure drop. Materials of construction, such as stainless steel, fiber-reinforced plastic (FRP), or polypropylene, are chosen based on corrosion resistance and process conditions. For this directory, typical reference ranges for industrial scrubbers include gas flow rates from 1,000 to 50,000 m³/h, removal efficiencies of 95–99.9%, operating pressures of 1.0–1.6 MPa, operating temperatures of 5–80°C, pH ranges of 1–14, liquid-to-gas ratios of 0.5–5 L/m³, pressure drops of 500–2500 Pa, and weights of 500–5000 kg. Dimensions may be approximately 2000×1000×3000 mm. These values are indicative and must be verified with the manufacturer for specific models and applications. Always confirm model-specific parameters and applicable standards with the legal manufacturer or supplier before procurement.

Working Principle

Contaminated gas is forced through a chamber where it is exposed to a spray or mist of a scrubbing liquid. Pollutants are transferred from the gas phase to the liquid phase through mechanisms such as impaction, interception, diffusion, absorption, or chemical reaction. The cleaned gas exits the system, while the contaminated liquid is collected for treatment or disposal.

Common Materials

Stainless Steel, Fiber-Reinforced Plastic (FRP), Polypropylene

Technical Parameters

Parameter	Typical range	Notes & selection driver
Gas Flow Rate	1000–50000 m³/h	Typical range for industrial scrubbers
Removal Efficiency	95–99.9 %	For target pollutant
Operating Pressure	1.0–1.6 MPa
Operating Temperature	5–80 °C	Above 80°C may damage internals
pH Range	1–14	Full range for acid/alkaline scrubbing
Liquid-to-Gas Ratio	0.5–5 L/m³	Optimize for mass transfer
Pressure Drop	500–2500 Pa	Higher for packed towers
Material	304/316L	Stainless steel for corrosion resistanceASTM A240
Weight	500–5000 kg	Depends on size and material
Dimensions (L×W×H)	2000×1000×3000 mm	Typical for mid-range capacity

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Spray Nozzles
Atomize the scrubbing liquid into fine droplets to maximize contact with the gas.

Material: Stainless Steel or Ceramic
Packing Media Part
Provides a large surface area for gas-liquid contact in packed-bed scrubbers.

Material: Polypropylene, PVC, or Ceramic
Mist Eliminator
Removes entrained liquid droplets from the cleaned gas stream before it exits.

Material: Polypropylene or Stainless Steel Mesh
Liquid Distribution System
Evenly distributes scrubbing liquid over the packing media or spray zone.

Material: PVC or Stainless Steel
Scrubber Body
The tower body itself: contains the packing and the counter-current gas and liquid flows.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Off-gas Cleaning System

View system integration details

Manufacturers of Scrubber

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Frequently Asked Questions

What is the typical gas flow rate range for a scrubber?

For industrial scrubbers, the typical gas flow rate range is 1,000 to 50,000 m³/h. However, the actual value depends on the specific model and application. Always verify with the manufacturer.

What removal efficiency can be expected?

Typical removal efficiencies for target pollutants range from 95% to 99.9%. The actual efficiency depends on the pollutant type, scrubber design, and operating conditions. Confirm with the supplier.

What materials are commonly used for scrubber construction?

Common materials include stainless steel (e.g., 304/316L per ASTM A240), fiber-reinforced plastic (FRP), and polypropylene. Material selection depends on corrosion resistance and process requirements.

What operating pressure and temperature ranges are typical?

Typical operating pressure is 1.0–1.6 MPa, and operating temperature is 5–80°C. These ranges are reference values; verify with the manufacturer for your specific process.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Standard: -0.5 to 1.5 bar gauge (-7 to 22 psig), specialized designs up to 10 bar (145 psig)
flow rate:	100-500,000 m³/h (59-294,000 CFM) depending on scrubber type and configuration
temperature:	Typically 0-150°C (32-302°F), with specific materials allowing up to 200°C (392°F) for hot gas applications
slurry concentration:	5-40% solids by weight, with optimal range 10-25% for most applications

Scrubber

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards