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Hydrochloric Acid Scrubber System
Hydrochloric Acid (HCl) scrubber systems work to remove hydrochloric acid from the waste gas stream through absorption and neutralization. Without the use of an HCl gas scrubber system, working environments become unsuitable for workers and those living within proximity of your plant. The most proactive way to capture acidic gases surrounding workplace emissions is through an HCl fume scrubber system from MACH Engineering.
We can provide you with suitable tower packing and tower internals with specialized HCl fume scrubber solutions for your industry.

What Is a Hydrochloric Acid Scrubber System?
- Landfills
- Biochemical
- Food and beverage
- Metal production
- Steel processing
- Wastewater treatment
As polluted air enters the Hydrochloric acid fume scrubber system, fine droplets of scrubbing liquid make contact with gases. Clean air is sent back out into the environment, and scrubbing liquid can get recycled for reuse up to a specific saturation point.
Applications for Hydrochloric Acid Scrubber Systems
HCl scrubber systems from MACH Engineering are custom-built for applications where filtering hydrogen chloride is necessary. Hydrogen chloride is the most common non-sulfurous gas emitted by manufacturing industries. HCl can be emitted with or without other toxic gasses present. This gas is dangerous as it carries corrosive and toxic properties around liquids.
Hydrogen chloride is colorless and non-flammable, but the gas has irritating fumes, making it a hazardous air pollutant for workers across your plant. MACH Engineering helps ventilate this gas accordingly by discharging fumes through contact with liquid solutions.
Aside from hydrochloric acid, MACH Engineering scrubber systems can remove the following contaminates:
- H2S
- HF
- HBr
- Chromic acid
- Formic acid
- NH3
- HNO3
- HCN
- SO2
- Cl2, F2 and Br2
- BCl3 and BF3
- Formaldehyde
- Ethylene compounds
- And more
HCl Fume Scrubber Features

Engineers at MACH Engineering will work with you to design an HCl gas scrubber system according to your specifications. We plan system features for your unique applications regarding odor control, emission regulation and wastewater treatment. Both vertical and horizontal scrubber configurations exist to filter hydrochloric acid waste.
Vertical builds promote a counter-flow operation with gases flowing upward and out. Liquid travels downward through packing media as pollutants (HCl) get absorbed through a reaction. Vertical systems provide maximum efficiency in removing harmful vapors for multiple industries.
A horizontal configuration offers a means for scrubbing liquid to travel downward. Gases move horizontally through packing materials to an air/gas outlet. Scrubber construction materials include the following for long-lasting durability and filtration regardless of layout:
- Titanium
- Nickel alloys
- Stainless steel
- Polypropylene/Polyethylene
- PVC
- CPVC
- FRP
MACH Engineering caters scrubber system designs to your site. We inquire about your industry and processes for a better understanding of how you intend to use our scrubbers. Experts at MACH Engineering will consider the following properties when designing your new systems:
- Solubility expectations
- Vapor pressures
- Flow rates (liquid/gas)
- Necessary pressure drop
- Number of scrubbing stages
- pH control
- Type of packing material — Tri-Packs are appropriate for HCl scrubbing applications.
- System size (height/diameter/volume)
Contact MACH Engineering for HCl Scrubber Systems
MACH Engineering is a full-service company and can supply all of the component parts of acid fume scrubber systems. Additionally, our engineers can offer guidance and recommendations regarding the installation of your HCl scrubber. With a quick turnaround on product design, we provide the ideal solution for custom control systems and more. Contact MACH Engineering today by submitting our contact form or calling (281) 550-3232 for more information about our products and services that suit your business needs.