SP absorbent desiccant, or Special Purpose Desiccant, is a leading deliquescent desiccant formulated primarily for the dehydration of natural gas for use in Gas Pipeline Dryers when the gas temperature is below 90°F. SP is a dense hygroscopic tablet that absorbs water vapor. The surface of the desiccant tablet dissolves slowly, forming a brine solution which drops from the surface. The tablet continuously dissolves, or deliquesces, until the desiccant is fully consumed.
Our deliquescent desiccants, including SP, are non-toxic and fully water soluble.
In a properly sized Gas Pipeline Dryer, SP will establish a relative humidity of 33%, which equates to a dew point approximately 30°F lower than the temperature of the gas at the inlet of the dryer.
Color and form: White tablet
Size: 1" diameter x 3/4" height
Bulk Density: 55 lbs/cu.ft. +/-3
Average break pressure: 60-100 lbs
Average PH of solution: 6.5 to 7.5
Critical RH: 33%
Inlet Temperature (saturated) |
Outlet Dew Point |
Dew Point Depression |
|---|---|---|
| 80° F | 50° F | 30° F |
| 70° F | 43° F | 27° F |
| 60° F | 36° F | 24° F |
| 55° F | 32° F | 23° F |
| 45° F | 25° F | 20° F |
- Requires no energy or fuel
- For operating temperatures 80°F and lower
- Prevents condensation
- Inhibits natural gas hydrate formation
- Can be used indoors or outdoors
- Prevents gas line freeze-ups
- Environmentally safe
- No BTEX emissions
- Available in 45 lb pails, 50 lb bags and 400 lb steel drums
- Drying high pressure, low temperature sales gas
- Fuel gas dehydration
- Instrument gas dehydration
