Hydrogen sulfide removal

Details Hydrogen sulfide removal Hydrogen sulfide removal

1975-02-24

1976-11-02

Peters, G. O.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423226, 55 73, C01B 1704

Patent

active

039898105

ABSTRACT:
A process for the removal and conversion into sulfur of hydrogen sulfide in a gaseous or liquid material which comprises essentially treating the said material with an oxidative lignin prepared by treating lignins with oxidizing agents, nitrating agents and/or demethylating agents and, if desired, introducing hydrophilic groups into the resultant product. The lignins include protolignin, isolated lignins and other denatured lignins. The process is advantageous essentially in that hydrogen sulfide can be removed economically and converted completely into sulfur, and that the desulfurization agents, i.e. the oxidative lignins, are non-toxic and non-corrosive.

REFERENCES:
patent: 3095275 (1963-06-01), Fierce et al.
patent: 3097926 (1963-07-01), Nicklin et al.
patent: 3099535 (1963-07-01), Maezawa
"Chemical Abstracts" vol. 57, 1962, p. 12766.
"Chemical Abstracts" vol. 58, 1963; p. 5571.

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