Gas Filter Separator
Horizontal & Vertical Coalescing Separators
SPEC designs and manufactures high-efficiency gas filter separators to remove liquids, solids, and aerosols from natural gas streams. Our horizontal double-barrel and vertical coalescing separators deliver superior liquid–solid separation while maintaining compact size and high throughput, protecting downstream equipment and ensuring clean gas for further processing.
These separators use a dual-stage design—first filtering bulk contaminants and then coalescing fine droplets into larger ones for efficient removal. The result is reliable operation with low maintenance, no vane plugging, and longer element life.
Process Overview
In a typical TEG (Triethylene Glycol) Dehydration Unit, water-saturated natural gas first passes through an inlet scrubber that removes contaminants before entering the contactor tower. The gas rises through trays or structured packing while lean glycol flows downward, absorbing water vapor. The “rich” glycol exits from the bottom, while the dry gas leaves from the top — ready for further processing or export.
This continuous process ensures dependable water removal, improving gas heating value and minimizing operational risks.
Benefits
- High gas handling capacity in a compact vessel
- Low maintenance and easy element replacement
- High separation efficiency for solids and liquids
- Prevents plugging and fouling in downstream equipment
- Suitable for retrofits and debottlenecking projects
Applications
- Gas Processing Plants
- Petrochemical and Chemical Plants
- Transmission and Gathering Stations
- Turbine Fuel Gas Systems
Mechanical Features
- Designed and manufactured to ASME Section VIII, Division 1 with ASME “U” stamp
- cComplete drainage system for inspection and cleaning
- Quick-opening closures for fast element change-outv
- Standard design pressure: 1440 psig
- Design temperature range: -20°F to 130°F
SPEC Configurations
Horizontal Coalescing Separator
Ideal for high-flow gas systems. The dual-barrel design maximizes gas throughput while preventing re-entrainment of liquids. It’s efficient for applications with large volumes and continuous operations.
Ideal for high-flow gas systems. The dual-barrel design maximizes gas throughput while preventing re-entrainment of liquids. It’s efficient for applications with large volumes and continuous operations.
Vertical Coalescing Separator
Best suited for space-restricted installations. Utilizes gravity separation to remove liquids efficiently, ensuring clean, dry gas.
Performance Applications
When Installed Upstream Of:
Compressors – remove water/oil mist and solids to protect valves and cylinders
Desiccant Dehydrators – prevent liquid contaminants that reduce desiccant life
Glycol Dehydrators – remove compressor oil mist to prevent glycol contamination
Desiccant Dehydrators – prevent liquid contaminants that reduce desiccant life
Glycol Dehydrators – remove compressor oil mist to prevent glycol contamination
When Installed Downstream Of:
Compressors – remove lube oil mist from discharge streams
Contactors – eliminate glycol or amine carryover
Contactors – eliminate glycol or amine carryover
Why Partner with SPEC Technology
SPEC combines oilfield technology expertise with precision fabrication to deliver turnkey gas filtration and separation systems that meet international performance and safety standards. With decades of experience in EPC and oil and gas technology, SPEC provides engineered solutions that optimize process efficiency, extend equipment life, and ensure reliability in the harshest operating conditions.