Process to purify gas containing hydrogen sulphide by means of a

Details Process to purify gas containing hydrogen sulphide by means of a Process to purify gas containing hydrogen sulphide by means of a

1974-09-12

1976-05-25

Serwin, R. E.

Chemistry: physical processes

Physical processes

Crystallization

23255E, 423228, 423229, 23515112, C01B 1716, G06F 1546

Patent

active

039589439

ABSTRACT:
An improved process for purifying gas containing hydrogen sulphide and possibly other acid impurities, by means of amines, consisting of absorption of these impurities by contact between the gas for purification and an amine solution, particularly a mono- or di-ethanolamine solution, steam regeneration of the amine solution after it has fixed the acid compounds, and recycling of the regenerated solution to the absorption zone, characterized by the fact that the sulphur content of the regenerated amine solution is kept at an optimum level by varying the flow of regenerating steam.
This improved process ensures better elimination of acid compounds, particularly hydrogen sulphide, by means of amines, and keeps the cost of purification as low as possible.

REFERENCES:
patent: 3338664 (1967-08-01), Bally et al.
savas, "Computer Control of Industrial Processes", McGraw-Hill, 1965 pp. 52-53.

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