Pentane

Extraction Processes:

THIOLEX™
FIBER-FILM™ Contactor caustic extraction of hydrogen sulfide, carbonyl sulfide, carbon dioxide and mercaptans from gases, LPG and naphthas.

Oxidation Processes:

REGEN™
Catalytic oxidation of mercaptide-rich caustic followed by gravity separation and/or solvent washing with a FIBER-FILM™ Contactor for separation/removal of disulfide oil in order to reuse the caustic in mercaptan extraction systems.

Further reading:
Pluses and Minuses of Caustic Treating