Calcium Chloride Peladow DG is widely used as a desiccant for drying gases (and liquid hydrocarbons) due to its high affinity, and capacity, for absorbing water.
Anhydrous Calcium Chloride Gas Drying Process
A typical drying application involves a bed of anhydrous calcium chloride, contained in vertical vessel, through which the gas (or hydrocarbon) is pumped.
As the gas moves upwards through the bed of Calcium Chloride, any moisture contained is absorbed. The solid calcium chloride pellets or briquettes are consumed during this process, forming a brine which flows to the bottom of the dryer where it can be removed to storage for disposal.
As the calcium chloride is consumed the bed volume reduces and at a pre-determined level (for example when 20% of the original bed volume remains) the vessel can be opened and topped up with fresh Calcium Chloride.
Natural gas, propane, propene, as well as industrial gases such as Nitrogen, Oxygen, Hydrogen can all be dried effectively in this manner.
Premier Chemicals supplies Peladow DG* anhydrous calcium chloride specifically for these applications. It is available in FIBC’s, 25kg bags and 200kg drums.