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This work is the first to assess the effect of the nature of the alkyl substituent of mercaptans, the concentration of the absorbent and the temperature on the chemosorption processes from isooctane. The temperature range of the experiment was from 30 to 70°C. The most effective absorption was observed at an alkali concentration of 1.91 to 9.3 mol/l and at 30 ÷ 70 °C. Low molecular weight ethyl mercaptan is effectively sorbed by 9.3 mol/l alkali, propyl mercaptan and butyl mercaptan - by 3.85 mol/l alkali, and branched isopropyl and isobutyl mercaptans by 3.85 mol/l alkali. Experiment times were 5 minutes.

Optimal temperature for the absorption of C 2 -C 5 mercaptans by sodium hydroxide solutions from isooctane