Gas Processing
Saves Time and Money while Delivering Customized Performance
Through the use of specialized membranes, advanced adsorbents, and proven process designs, UOP modular gas processing systems provide customized solutions for acid gas removal, dehydration, mercury removal, and liquids recovery.
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UOP’s Flexible, Adsorbent based, Mercury Removal Units treat Natural Gas
To cost-effectively address the critical issue of mercury removal from natural gas and associated gas liquids, UOP offers state-of-the-art adsorbent technology for a variety of applications in a skid-mounted, modular unit. These turn-key units offer significant cost, schedule, and quality of construction advantages for the gas processing operator.
UOP offers two adsorbent technologies:
- Regenerable, silver-loaded HgSIV™ adsorbents are typically installed within the dehydration section of the gas plant to protect downstream cryogenic equipment. Mercury is desorbed using a temperature swing cycle with a hot regenerate gas.
- Non-regenerable, GB metal oxide adsorbent technology provides complete mercury capture in wet environments while achieving high sulfur utilization ratios. This high adsorbent efficiency allows for maximum adsorbent loadings and small plot requirements.
To ensure the removal of mercury from sales gas and protect plant cryogenic equipment, some operators are combining upstream HgSIV technology with the use of a small GB adsorbent bed on the lower volume regenerate gas stream to maximize overall efficiency and minimize cost.
UOP single-source turn-key equipment offers a number of significant advantages:
- Optimum adsorbent selection to meet processing requirements while minimizing cost
- Experience in equipment selection, vessel design, and associated control schemes to assure long-term, trouble-free operation at minimum cost
- High-quality, turn-key equipment supply, minimizing on-site construction issues
- Efficient design that minimize weight and physical footprint, ideal for floating applications
- Attractive cost and delivery timing relative to stick-built construction
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UOP Separex™ Membrane Systems maximize acid gas and water removal efficiency
UOP Separex Membrane Systems are used for acid gas and water removal from natural gas streams. The systems are modular, skid-mounted units containing spiral wound membrane elements. Typical feed gas conditions range between 400 and 1600 psig (2700 kPag to 11,000 kPag) with CO2 levels from 3% to 90%. Commercial systems have been designed and operated at feed flow rates ranging from 3 MMSCFD to 700 MMSCFD. Higher rates are in the planning stage.
Separex Membrane applications include:
- Natural gas upgrading
- Remote and offshore locations
- Enhanced oil recovery
- Biogas methane recovery
- Debottlenecking of solvent-based acid gas removal
Pretreatment of the gas is critical to ensuring long membrane life and low operating costs. Depending on the application UOP offers our proprietary MemGuard technology that supplies cost-effective pretreatment, assuring long downsteam membrane life and reliable, trouble-free operation.
UOP’s latest innovation, the Separex Multi-Tube membrane package is a novel compact membrane system design that simplifies process stream connections and significantly increases membrane packing density. The Multi-tube offers a 50% footprint reduction in most applications, making it even more attractive for offshore projects.
The advantages of Separex Membrane Systems over conventional solvent-based processes include:
- Lower capital and energy costs
- Reduced space requirements, faster delivery time and lower installation costs
- Lower operating costs and lower manpower requirements
- Increased flexibility for variations in feed gas flowrate and composition
- Elimination of dehydration equipment
- Shorter, easier start-up and shutdown
- Higher waste gas pressure for reduced re-injection compression
UOP has delivered over 130 membrane systems for commercial operation achieving high reliability with downtime of less than 0.5% per year.
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Single-source, modular construction enables off-shore applications
UOP’s single-source capability and expertise in modular plant construction is ideally suited for off-shore gas processing applications. Whether fixed-platform, FPSO or FLNG applications, UOP provides a complete portfolio of gas treating processes combined into a modular unit. Dependent on treating requirements, technologies may include UOP AmineGuard™ FS Process, UOP MOLSIV™ Adsorbent Unit, Mercury Removal Unit, UOP Separex™ Membrane System, Twister Supersonic Separation Unit and/or Ortloff NGL/LPG Recovery Process. With a broad portfolio of technologies, UOP can customize designs to meet our customer’s specific processing requirements.
Single-source modular equipment supply provides maximum process integration and optimal equipment layout, yielding a lightweight design with a minimum footprint, reducing capital and installation costs. Systems are designed for ease of maintenance and maximum reliability, providing high on-stream factors and minimal operator attention. The elimination of handoffs between multiple technology suppliers and engineering firms allows faster project implementation.
UOP provides a full portfolio of operator training, commissioning/start-up services and continuing technical support for the life cycle of the facility. As the sole technology provider, UOP offers overall performance assurance on all process specifications.
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