Nitrogen Rejection and C02 Removal Made Easy

Molecular Gate®
     Adsorption Technology

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Molecular Gate System Removes CO2 for California Oil and Gas Producer

Molecular Gate CO2 Removal System at the Tidelands Facility in Long Beach California

Molecular Gate CO2 Removal System Generates Revenue for Tidelands Oil, Five Years Strong

Molecular Gate® adsorption  systems continue to gain market acceptance with two-dozen projects underway with flows up to 10 MMSCFD. 

The first Molecular Gate CO2 removal system has operated for five years at Tidelands where it continues to generate revenue from the sale of an otherwise, unusable by-product of its oil production process. 

Tidelands Oil is using the system to remove carbon dioxide, heavy hydrocarbons and water from oil production (water flood) associated natural gas at its Long Beach facility.  This enables the gas to meet pipeline specifications with single step processing. Tidelands is selling their natural gas through the local distribution system.  

Molecular Gate System at Tidelands Oil Removes CO2 and Water from Natural Gas, Excellent On-stream Factor

The unit at Tidelands Oil was the first commercial application of Molecular Gate technology for the removal of carbon dioxide (CO2) and water from natural gas and has operated for five years with an excellent on-stream factor. 

“The system allows us to generate a revenue stream from the sale of gas that otherwise would have to be flared,” said James Wills, Staff Engineer for Tidelands’ Long Beach Operations and leader of Tidelands Molecular Gate project. “We selected the Molecular Gate system over commonly used amine technology due to its lower cost, simplicity of operation and environmental friendliness.” 

While amine technology removes carbon dioxide from natural gas, it does not remove water. Both water and carbon dioxide must be removed from natural gas in order to meet U.S. pipeline specifications. 

“Unlike amine technology, the Molecular Gate system removes carbon dioxide and dehydrates natural gas in a single step. Further, it is tolerant of oxygen and is designed to operate unattended,” said Michael Mitariten, Business Manager for Molecular Gate technology. 

Pipeline Quality Natural Gas through Removal of 30% Carbon Dioxide and Water

This exciting technology enables Tidelands Oil to efficiently treat one million standard cubic feet per day (1 MM SCFD) – producing pipeline quality natural gas by removing more than 30 percent carbon dioxide and water to less than 2% CO2.

In this particular application, Molecular Gateâ adsorbents work by trapping carbon dioxide and water molecules in a fixed bed of adsorbent materials while allowing methane to pass through at feed pressure.  Guild Associates provides this unique adsorbent in a complete pressure swing adsorption (PSA) system.  

Molecular Gate technology can be used to remove carbon dioxide from coal bed methane, natural gas and landfill gas, among other applications. It also is highly effective in removing nitrogen (or a combination of N2 and CO2) from a wide variety of contaminated sources of natural gas.

About Tidelands Oil

Tidelands Oil is a full-service oil and gas production company that manages more than 400 active wells in the Los Angeles basin. The company supervises on-shore oil and gas production for the city of Long Beach, CA.

About Guild Associates

Guild Associates is the exclusive USA licensee of the Molecular Gate technology originally developed by Engelhard Corporation (now a part of the BASF Group) and has provided all systems to date.  Guild provides adsorption and catalyst systems to a variety of markets as well as shop fabricated engineered systems including Molecular Gate systems. 

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Further Information:

If you would like an evaluation of how the Molecular Gate technology can solve your gas treatment needs simply complete and email back the Estimate Request Form or contact Paul Baker at 614-760-8013 or by email


Guild is a licensee of Engelhard's Molecular Gate® Adsorbent Technology and
is solely responsible for all representations regarding the technology made herein.

All trademarks identified by ™ or ® are trademarks or registered trademarks, respectively, of
Engelhard Corporation (now a part of the BASF Group). All other trademarks are the property of their respective owner.

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