ELIMFILTERS Canonical Knowledge · Approved
GASLIQ Gas-Liquid Separation for Industrial Gas Conditioning
Engineering Reference · Industrial & Process
Platform: COALVEX™
Technology: GASLIQ™
Engineering Relationships
- GASLIQ™ is the ELIMFILTERS Gas-Liquid Separation technology for free liquid, larger entrained droplets and bulk or intermediate liquid carryover in gas streams.
- Bulk separation can be used upstream of fine coalescence when free-liquid, large-droplet or slug loading would overload a coalescing stage.
- Separation behavior depends on gas velocity and turndown, liquid loading, droplet behavior, vessel geometry, disengagement space, internals and drainage.
- Stable drainage and level control are required to prevent flooding and downstream liquid carryover.
- GASLIQ™ maps to TC-NG-02 beneath COALVEX™; the Gas-Liquid Separation descriptor remains attached for technical classification and discovery clarity.
Components
- Gas-liquid separation vessel or chamber
- Separation internals where applicable
- Liquid disengagement volume
- Drain and level-control path
- Downstream interface to finer coalescing or process equipment
Problems
- Free-liquid carryover
- Large-droplet carryover
- Slug or intermittent liquid loading
- Flooding
- Poor drainage
- Unstable separation across turndown
Failure Modes
- Insufficient disengagement for the actual gas and liquid duty
- Flooding caused by excessive liquid load or poor drainage
- Re-entrainment at unfavorable gas velocity
- Level-control or drain malfunction
- Bulk separation stage undersized for slug or variable loading
Symptoms
- Free liquid appears downstream
- Separation becomes unstable as gas flow changes
- Liquid level rises unexpectedly
- Drainage cannot keep pace with incoming liquid
- Fine downstream coalescing stages overload prematurely
Root Causes
- Gas or liquid loading differs from the design basis
- Vessel residence or disengagement space is inadequate for the actual duty
- Drain or level-control function is restricted
- Gas velocity promotes droplet carryover or re-entrainment
- Slug loading was not included in the separation basis
Diagnostic Methods
- Review gas flow, turndown, pressure and temperature.
- Quantify free-liquid rate, larger-droplet loading and slug potential.
- Inspect drain and level-control behavior.
- Review vessel orientation, internals and available disengagement space.
- Check whether downstream fine coalescers are receiving excessive bulk liquid.
Corrective Actions
- Restore drainage and level-control function before changing downstream coalescing elements.
- Re-evaluate vessel duty when actual gas or liquid loading differs materially from the selection basis.
- Requalify the separation architecture when slug loading or turndown exceeds the original operating envelope.
- Protect fine coalescing stages from bulk-liquid loading when the process requires staged separation.
Operating Conditions
- Gas flow and turndown
- Operating and design pressure
- Temperature range
- Free-liquid rate
- Droplet-size distribution
- Slug or intermittent liquid loading
- Vessel residence and disengagement space
- Drainage and level-control behavior
Standards
- ISO 13686:2013 — natural-gas quality designation used as process context for natural-gas applications; it is not a separation-element certification.
- ISO 8573-1:2010 — compressed-air purity classes where the separation duty is compressed air.
- ISO 8573-9:2004 — compressed-air liquid-water measurement where free-water separation is being verified.
- ISO 8573-2:2018 — compressed-air liquid-oil and oil-aerosol measurement where oil carryover is the measured challenge.
Shared Engineering
- Flow Rate
- Differential Pressure
- Service Life
- Installation
- Failure Analysis