Method and apparatus for selective absorption of hydrogen sulphi

Details Method and apparatus for selective absorption of hydrogen sulphi Method and apparatus for selective absorption of hydrogen sulphi

1986-02-10

1987-07-07

Doll, John

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

261108, 423229, C01B 1716, C01B 3120, B01D 4700, B01F 304

Patent

active

046786481

ABSTRACT:
The process selectively absorbs hydrogen sulphide from gases containing hydrogen sulphide and carbon dioxide by contacting the gas with an aqueous solution of alkanolamine in an absorber column containing a structured packing consisting of a number of corrugated plates arranged parallel to the column axis. The corrugations are angled to the column axis at an angle between 20.degree. and 70.degree. and run in opposite directions on adjacent plates. The structured packing effects a lower absorption of the carbon dioxide in the solvent than Pall rings or sieve trays so that only a small amount of carbon dioxide is co-absorbed with the hydrogen sulphide.

REFERENCES:
patent: 3466019 (1969-09-01), Priestly
patent: 3466151 (1969-09-01), Sicard et al.
patent: 3989811 (1976-11-01), Hill
patent: 4296050 (1981-10-01), Meier

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