krecian,
Many licensors/EPCM companies can design salt driers. But some may not get involved with such a small poject. If that is the case, you would have to contact a salt vendor.
Newer designs seem to favour vacuum drying of diesel. It can dry down to about 50 ppm, and is better if you have the money, plot space and place to dispose of the off gas.
With salt drying you can use rock salt or CaCl salt. With rock salt you can only dry to a few degrees below the haze point. Thus, you may not be able to achieve 100 ppm. Salt drying also suffer from some operability issues, channeling, frequent draining, corrosion, effect of salt on downstream units, ect. It is still being used though.