Home / Case Studies / Selection of a Scrubber for Hydrogen Chloride (HCl) Tank Aspiration

Selection of a Scrubber for Hydrogen Chloride (HCl) Tank Aspiration

Client

The company specializes in water treatment, process optimization, and hygiene solutions across various industries. With over a century of history, it is now a global leader in specialty chemicals and water treatment, operating in 100 countries with 16,000 employees and 60 manufacturing sites.

Production Process

The process of storing, loading, and unloading a single HCL tank. Filling occurs 1-2 times per week.

Problem

Select a scrubber for a standalone HCL tank. The tank drawing is provided below.

Task

The client requires a scrubber to treat emissions from a standalone HCl storage tank, ensuring compliance with U.S. environmental regulations. The scrubber must be cost-effective while adequately handling HCl vapors from infrequent tank loading (1-2 times per week).

Current system component

A chemical storage tank is planned for use at a facility under construction. According to U.S. laws, particularly in California, emissions from this tank must be captured and treated.

Temperature

Ambient, but temperatures can reach up to 105°F in summer.

Gas

HCL

Initial Data

Client Communication

Client:

Good day,
Thanks for taking the call and reviewing the scrubber specification for us.
I need a scrubber to treat emissions from a tank storing HCL.
Tank specifications:

Material: Cross-linked polyethylene
Capacity: 6,900 gallons
Dry weight: 2,400 lbs.
Footprint: 120” x 161”

The 6,900-gallon acid tank is made from cross-linked polyethylene for superior durability and safety. It is ideal for temporary storage of water, chemicals, and other liquids.

The Tank 6900 is portable, lightweight, and well-suited for use in construction, manufacturing, power plants, and various industrial applications.
Features:

Poly tanks have two molded-in 3-inch flanges at the bottom for superior drainage and easy cleaning.
Each tank comes with a standard pad.

Tank drawing:

Tank drawing

Engineer Torch-Air:

Good afternoon, I suggest you consider two types of scrubbers for your needs. One is simpler and can operate without a pump; the other is a packed scrubber that is more efficient. The desired capacity for your tank is between 380 to 500 CFM.
Attached is the CATALOG for selecting scrubbers for the tank, along with excerpts from the catalog below.

Tank Vent Requirements

Tank Vent Sizing

Engineer Torch-Air:

We offer the following scrubbers:
Equipment name: Scrubber T-RP-500
Cleaning type: Liquid sorption of contaminants.

Equipment name: Scrubber V-SM-500
Cleaning type: Liquid sorption of contaminants.
Volume (cfm): 500 CFM
Weight: 400 lbs

Equipment name: Scrubber V-SM-500
Cleaning type: Liquid sorption of contaminants.
Volume (cfm): 500 CFM
Weight: 280 lbs

Client:

Great, I'll go with the cheaper one, I think. Since I didn’t expect any additional costs for installing the scrubber, I decided to go with a more affordable option for the time being.

Proposed Solutions

Based on the client’s requirements and budget considerations, two scrubber options were proposed:
SCRUBBER T-RP-500

Cleaning Type: Liquid sorption of contaminants
Capacity: 500 CFM
Weight: 400 lbs
Features: This scrubber offers a robust design suitable for efficient HCl emission control. However, it is slightly heavier and has a higher cost due to its construction and additional features.

SCRUBBER V-SM-500

Cleaning Type: Liquid sorption of contaminants
Capacity: 500 CFM
Weight: 280 lbs
Features: This scrubber is a more economical option while still effectively treating HCl emissions. It is lighter in weight, making installation easier, and does not require a pump for operation, reducing maintenance costs.

Result

The client has chosen the most suitable scrubber in terms of its characteristics and budget, which will effectively handle air purification from HCl in small quantities and with infrequent tank loading.

Best Wet Scrubbers for Tank

TORNADO FB Fluidized Packed Bed Scrubber

Performance: 100 — 175 000 cfm

TORNADO RP Vertical Wet Scrubber

Performance: 600 — 24 000 cfm

BOREAS-P2 Horizontal Packed Bed Scrubber

Performance: 100 — 175 000 cfm

BOREAS-P3 Horizontal Packed Bed Scrubber

Performance: 100 — 175 000 cfm

Tank Vent Scrubber

Performance: 0 — 3 000 cfm

We always perform precise calculations and offer expert assistance in selecting the optimal dust collection or gas cleaning systems, typically completing this process within 1 to 2 days

Head of Engineering,
Vladimir Nikulin

CALCULATION AND SELECTION

After filling out this form, you will obtain the cost of the equipment and time frame over which it will be delivered

By filling out this form, you agree to our personal data processing policy

DELIVERY AND INSTALLATION ALL OVER USA, CANADA, MEXICO

FULL ADHERENCE TO QUALITY STANDARDS

WE CUSTOMIZE INSTALLATIONS TO SUIT YOUR COMPANY

FAVORABLE PRICES FROM A US MANUFACTURER

Operating in USA, Canada, and Mexico