• Energy Infrastructure

    Enerflex offers standard and customized products at every stage of the natural gas value chain. We manufacture and modify all the products required for energy projects at a global scale, with innovative in-house engineering delivering a tailored, full-service solution.

  • Products

    Enerflex offers standard and customized products at every stage of the natural gas value chain. We manufacture and modify all the products required for energy projects at a global scale, with innovative in-house engineering delivering a tailored, full-service solution.

  • Services

    The life cycle of an asset can be 30 years or more. To maximize uptime and deliver significant value, assets in the natural gas sector require constant maintenance – preventive and restorative. Systems and parts may need to be upgraded or retrofitted. In the shop or in the field, Enerflex has trained expert technicians to solve service problems for customers worldwide, with long-term maintenance contracts and extensive local parts inventory for peace of mind.

  • Solutions

    Enerflex partners with customers, across the natural gas value chain wellhead to downstream. Expert in-house teams have experience in every configuration, onshore and offshore, sub-Arctic, tropical, and desert climate applications. We offer maximum flexibility with new compression, gas processing, refrigeration, power generation, and integrated facilities — paired with rentals, contract compression, and after-market services. Enerflex also provides total assurance with Build-Own-Operate-Maintain (BOOM).

  • Company

    Enerflex plays a pivotal role in the global transformation of energy markets through innovative processing and treating of natural gas. Our forward-thinking and entrepreneurial leadership is committed to delivering the fuel of the future to diverse industries, fast-growing communities, and discerning homeowners all around the world, creating shareholder value as we meet demand.

Global Resources For Every Dehydration Challenge

Full Range of TEG, Mole Sieve, and Silica Gel Systems

Enerflex’s dehydration systems remove water from gas or liquid to avoid hydrate formation and condensation, meet water content specifications, and prevent corrosion.

Enerflex is an expert in dehydration systems and deploys a number of techniques, depending on the best fit for the application: liquid desiccant absorption using triethylene glycol (TEG), diethylene glycol (DEG), and tetraethylene glycol (TREG); solid desiccant adsorption using mol sieve and silica gel membrane technology; as well as mechanical refrigeration systems using ethylene glycol (EG) or methanol as the hydrate inhibitor.

Dehydration can be applied to sweet and sour natural gas applications, associated gas condensate, and natural gas liquids (NGLs).

Specialized Dehydration Industry-Wide

  • Glycol Options

    Glycol dehydration is an economical process that uses glycol to absorb water from natural gas. Triethylene glycol (TEG) is the most commonly used glycol among the hydrate inhibitor family — which includes diethylene glycol (DEG), monoethylene glycol (MEG), ethylene glycol (EG), and tetraethylene glycol (TREG).

    Glycol dehydration can achieve an outlet gas specification of 2 lbs water / MMSCF and below. Enerflex supplies TEG dehydration units ranging from 5 to 80 GPM and higher, built to our high specification standards suitable across all environments.

  • Molecular Sieve Options

    The molecular sieve process uses a desiccant bead to absorb water. Because this process provides the maximum water removal from natural gas, molecular sieves can be used in high H2S environments, and are usually used when lower water specifications are requested.

    Enerflex supplies molecular sieve dehydration units, up to and beyond 300 MMSCFD. Fully automated switching valves for mode control on the molecular sieve, and the bead design is optimized for maximum efficiency. Typically, these units are used to achieve outlet gas dew points less than -100°C (-150°F) or to achieve outlet gas water contents less than 0.1 PPM (parts per million).

  • Silica Gel Options

    Silica gel is made from sulphuric acid and sodium silicate. Silica gels work best at feed temperatures below 50°C (122°F). Because they are hydrophilic, they can be used to reach water dew point levels as low as -50°C (-60°F). Some specialty gels can effectively remove C5+ hydrocarbons.

    In general, solid desiccant dehydration units such as silica gels or molecular sieves are recommended for applications where sour gas, logistics, and lower outlet water content prevents the use of TEG dehydration. Enerflex’s engineering and design expertise can help tailor a solution for your required field specifications.

Enerflex in Action

  • Karak, KPK, Pakistan

    70 MMSCFD Hydrocarbon Dew Point and Dehydration Control Facility

    Enerflex engineered, designed, and built a 70 MMSCFD hydrocarbon dew point (HCDP) and dehydration control facility in the remote northern frontier of Pakistan. Field conditions were complex, including handling corrosive wet CO2. 

    Enerflex’s engineering team developed a custom process and mechanical design to enable the HCDP and dehydration facility to process wet inlet gas containing 3% CO2. The design also featured a TEG dehydration unit with 1.5 lbs of H2O per MMSCFD capacity, an SST-lined inlet separator, and a J-T valve to reduce the gas pressure from 900 lbs ASME to 600 lbs ASME.

    Outcome

    Enerflex commissioned the HCDP and dehydration facility on schedule, using skid-mounted units that reduced time to first gas and were cheaper to install. The customer ordered additional HCDP and dehydration facilities for future field development phases.

  • Permian Basin, West Texas, USA

    Long Term Contract for Natural Gas Compression Facilities with Dehydration — BOOM Solution

    Enerflex signed a Build-Own-Operate-Maintain (BOOM) contract with an oil and gas producer for two compression facilities in the Permian basin. This historical oil-producing region in west Texas is being revived through horizontal drilling and multi-stage fracturing, with unconventional production of oil, solution gas, and natural gas liquids growing rapidly. The two facilities each include three reciprocating compressors, driven by natural gas engines, with slug catchers, dehydration, and H2S removal.

    Outcome

    The turnkey facilities were bundled with two-year operations and maintenance contracts. The construction, installation, and start-up for both turnkey rental compressor stations were completed on schedule. Monthly operations and maintenance of the compressor stations are delivered by Enerflex from its service branch in Odessa, Texas.

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