2007-11-22 02:47:55 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
A caustic wash can be used to remove acid gas from either natural gas or liquid hydrocarbon streams.
Caustic solutions can be used to selectively remove H2S from vapor streams in the presence of CO2 provided that extremely short contact times of about 0.01 to 0.02 seconds are maintained as described by Hohlfeld (1979) and by Kent (1985).A caustic wash can be used to remove mercaptans from either natural gas or liquid hydrocarbon
streams. When used to absorb mercaptans only, the caustic solution is usually regenerable either by thermal means or by oxidative regeneration. caustic treating may be modeled to predict the absorption of acid gas compounds and sulfur species such as H2S, CO2, and mercaptans from liquid or vapor streams.
2NaOH(aq) + H2S ===> Na2S(aq) + 2H2O
2007-11-22 03:35:49 · answer #1 · answered by tan srivastava 1 · 0⤊ 0⤋
2NaOH(aq) + H2S ===> Na2S(aq) + 2H2O
2007-11-22 11:04:53 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋