Vapor Control & Degassing

GEM has been performing high-quality, professional vapor, odor, and emissions control since 1994.

Our staff is trained and experienced in applying cutting-edge treatment technologies to ensure our clients' emissions challenges are met while we focus on safety and compliance. Whether it's vapor combustion, liquid vapor scrubbing or carbon absorption, GEM has the appropriate solution.


Tank & Pipeline Degassing

GEM offers mobile vapor control and degassing through a variety of proven technologies. Our staff prioritizes safety, compliance, and meeting our clients' emissions challenges. GEM's diverse fleet of equipment ensures that we can meet each customer's unique project needs.

GEM's Mobile Vapor Combustion Units range in size from 1.5 MM BTU to 42 MM BTU and can handle various vapor flow rates up to 3,000 SCFM. By offering the broadest range of vapor combustor sizes, GEM has the ability to handle low-flow passive vapor control needs or specialty high-flow vapor destruction, typical for large product or crude tanks.


Vapor Scrubbing & Odor Control

Similarly, GEM's combination of carbon with liquid scrubbing is often the most cost-effective approach for controlling vapors generated by sludge processing operations, barges, tankers, and API separators.

GEM provides liquid scrubbing solutions to enhance carbon vapor control systems. GEM utilizes specialized chemistry to control VOCs, proprietary caustic solution to scrub H2S, and acid to remove ammonia from vapor streams. Our in-house equipment has flow capacity of up to 500 SCFM. We offer single vessel, combination vessel, and a number of specialty packed scrubbers.

Loading Rack Vapor Control

GEM's high-capacity vapor combustion equipment is ideal as a substitute vapor control system when service is needed at a gasoline or product terminal loading rack. Our extensive experience with petroleum terminals has positioned GEM as the go-to service provider in emergency situations where customers can't afford to slow product flow. By owning and operating the largest fleet of mobile vapor combustors available, GEM has the capacity to control small to high vapor flow applications.


Marine Vapor Control Services

GEM has applied our extensive experience in vapor combustion to controlling the vapor emissions from product or crude oil marine loading activity. With the high-flow capacity of our thermal units, our marine loading clients are able to obtain the necessary flow rates needed to meet the shipment demands of their customers. In combination with a GEM Dock Safety Skid (DSS), our systems are Coast Guard Compliant per 33 CFR 154 Subpart E and provided with a facility CE certification. GEM Marine Vapor Control Systems have served customers on all coasts, as well as on the major inland waterways throughout the U.S., and we are experienced working with the U.S. Coast Guard to help obtain the necessary permits required for safe loading operations.

Because we recognize the importance of equipment reliability, we prioritize preventive and scheduled maintenance and will dispatch our technical personnel from any of our service locations at a moment's notice to minimize downtime

Barge & Ship Degassing

Our vapor combustion equipment is used for the degassing of barges or ships that transport volatile products throughout our inland waterway systems or over oceans. We routinely clear vapors from compartments after product stripping, prior to entry for safe cleaning, or for safe transport to loading destination. Our vapor control systems comply with applicable U.S. Coast Guard regulations.


Turnaround and MSS Support Services

We integrate the details of large, complex shutdowns that must be completed safely, on schedule, and on budget. Our proven success record includes numerous refinery-wide shutdowns throughout the U.S. Specific project management methodologies reduce variation and increase efficiencies. We continually measure and analyze our customers' KPIs for process improvement. Our thermal technologies enable refinery or chemical plants to clear tanks, units, or vessels in a fraction of the time it typically would take using traditional methodologies. Our specialty vapor control equipment can meet Class 1 Division Il requirements, allowing us to perform work in the most sensitive areas of our customers' plants.


In addition, GEM has developed a wide variety of vapor control solutions to assist customers with Maintenance Startup & Shutdown (MSS) permit compliance. Our comprehensive emission management program offers multiple customized options to meet individual facility needs. Evergreen's equipment is designed to control vapors from a variety of sources, including tanks, vessels, pipelines, vacuum trucks & air movers, sumps, frac tanks, and process units. GEM's Vapor Control Systems are designed to meet all TCEQ/BACT requirements.

Contact us today to experience Evergreen North America's best-in-class vapor control
and degassing services.

Contact Us

Explore Our Services

Abrasive Blasting
Water-Blasting / Hydro-Blasting
Automated / Remotely Operated Cleaning
Pipeline Cleaning
Water Treatment Services
Chemical Cleaning
Tank Cleaning
Explosive De-Slaggin
Turn-Around Services
Foam Cleaning
Vapor Control Degassing
Vacuum Truck Services

Request Our Services

The Specialist at Evergreen North America is ready to reply to any questions or needs you may have.

Contact Us

  • El Dorado, AR

  • Pine Bluff, AR

  • Benicia, CA

  • Huntington Beach, CA

  • Lake City, FL

  • Clinton, IA

  • McPherson, KS

  • Wood River, IL

  • Ashland, KY

  • Gonzales, LA

  • West Lake, LA

  • Aberdeen, MD

  • Gorham, ME

  • Bay Way, NJ

  • Carlin, NV

  • Ballston Spa, NY

  • Ponca City, OK

  • Clariton, PA

  • Beaumont, TX

  • ​Borger, TX

  • Corpus Christi, TX

  • Freeport, TX

  • La Porte, TX

  • Mt Pleasant, TX

  • Sweeny, TX

  • Texas City, TX

  • Salt Lake City, UT

  • Wisconsin Rapids, WI

  • Hurricane, WV

  • Weirton, WV

  • Rock Springs, WY

  • Sinclair, WY


June 19-21
MPC Golf Classic – Findlay, OH

August 23-24
Tim Underwood Golf Classic – Newton, KS

September 22, 2023
10th Annual ENAIS Fishing Tournament – San Leon, TX

Evergreen North America Academic Scholarship

If you are a senior high school student that will become an enrolled freshman at a college or university, please click the link below to view our academic scholarship application. 

Academic Scholarship Application

Email any questions or final applications to

GEM Mobile Treatment Services is an Evergreen North American company.

GEM Mobile Treatment Services

Evergreen North American Industrial Services is a Sterling Group company.

Home   |   About Us   |   Services   |   GEM Mobile   |   Locations   |   Safety   |   Careers   |   Events   |   Contact Us
© 2018 Evergreen North America Industrial Services. All Rights Reserved.