Texas produces more natural gas than any other state in the country, and every cubic foot of that gas carries moisture. Wet gas corrodes pipelines, freezes control valves, and creates hydrates that can block flow lines at the worst possible times. Keeping gas dry isn’t a best practice, it’s a physical requirement for safe and reliable operations, which is why lithium chloride desiccant moves in serious volume through the state’s natural gas sector.
How Lithium Chloride Desiccant Actually Works in a Compressed Gas System
Inside a deliquescent dryer vessel, compressed natural gas flows under pressure through a bed of desiccant tablets. This process only works in pressurized gas systems, not ambient air. The tablets absorb water vapor from the gas stream and slowly dissolve, forming a brine solution that drains out of the vessel. Lithium chloride desiccant is consumed in this process. The tablets don’t regenerate. They continue to dissolve until fully depleted, at which point the vessel is refilled with fresh desiccant.
Products like Van Air’s 10BF/GasDry Max, formulated with lithium chloride as the active compound, remove approximately 87% of water vapor from natural gas, the highest moisture-removal capacity of any deliquescent desiccant available. That performance level matters in fuel gas conditioning, instrument gas drying, and gathering system operations, where moisture content must remain consistently below pipeline specifications to avoid hydrate formation and downstream corrosion.
Lithium Chloride Desiccant vs. Glycol Dehydrators in Natural Gas Applications
Triethylene glycol (TEG) dehydrators are the most common technology for removing water vapor from natural gas. They handle high throughput volumes and can run continuously across large-scale production sites. The downside is emissions. Each TEG cycle vents methane, volatile organic compounds (VOCs), and hazardous air pollutants (HAPs). Texas operators face state and federal emissions limits, and failing to meet them forces production cutbacks.
Deliquescent dryers running on lithium chloride desiccant produce no atmospheric emissions. The desiccant absorbs moisture, dissolves into brine, and gets collected and disposed of cleanly. For smaller gathering lines, remote wellheads, or sites with tight emissions restrictions, a desiccant dryer vessel is often the more practical and compliant option. Capital costs are significantly lower than for a glycol unit, and maintenance is minimal since there are no reboilers, pumps, or heat exchangers in the system. Operators don’t have to track glycol inventory or manage a reboiler fuel supply.
Where Lithium Chloride Desiccant Steps In When Power Goes Out
Refineries and petrochemical plants across Texas depend on dry instrument gas to operate control valves, positioners, and automated systems that run continuously. Most facilities use powered dryers as their primary drying source, and those dryers perform well under normal conditions. When grid power fails during a storm or emergency shutdown, those dryers go down with it.
Lithium chloride desiccant vessels need no electricity. They run entirely on line pressure. Plants that install a deliquescent dryer vessel as a secondary unit keep their instrument gas dry during outages, ensuring control systems remain functional while the primary power-driven dryers are offline. A loss of dry instrument gas can cause valves to fail, trip automated safety systems, and contribute to events far harder to manage than the outage itself.
Along the Gulf Coast, in the Permian Basin, and throughout Texas refining infrastructure, exposure to hurricanes, grid instability, and weather-related shutdowns is a regular operational variable. Backup gas drying that requires no external power and no operator action when it’s needed is worth the vessel footprint. Lithium chloride desiccant handles that role reliably because it doesn’t depend on any of the systems that might be offline.
Natural gas producers and plant operators sourcing deliquescent desiccant for Texas operations can find 10BF/GasDry Max and technical support through Air & Vacuum Process.
