As the industry leader in deliquescent desiccant technology, Van Air Systems designed the PLD to be an economical and effective solution for gas dehydration. The operation of the PLD is simple. Wet gas enters the bottom of the vessel where gas velocity is reduced and flow direction is changed. In this area, heavier drops of entrained water are separated and fall into the large capacity claim area. The gas then moves upward through the bed of deliquescent desiccant tablets, which slowly dissolve as they absorb moisture vapor. The water and desiccant solution fall into the claim area to be drained – the brine solution will not freeze above -20ºF. New desiccant tablets are periodically added. At the dryer outlet, the gas is free of liquid water, and water vapor is substantially reduced, eliminating the possibility of hydrate formation.
Pipeline Series dryers provide a low-cost solution for moisture removal from natural gas for everyone from the home well operator to large producers of natural gas.
The PLD Series dryers also can be used for the Biogas market. Our deliquescent drying technology can be used to remove the moisture from biogas at various stages in the process. Our PLD pipeline dryers have no moving parts, require zero electricity, require zero purge gas, can operate remotely in unmanned facilities, and produce Zero Emissions. Our dryers can react to reasonable flow rate fluctuations, pressure, and temperature without negatively affecting drying performance. After the biogas passes through our deliquescent dryers, the moisture content is typically low enough to meet pipeline quality gas and/or be used for Fuel Gas, Sales Gas, Power Generation, and even sent to liquification plants. The PLD Deliquescent Dryer is an ideal solution for RNG (Renewable Natural Gas) and all your Biogas upgrading projects.
