Composition for removal of sulfur-containing compounds
AssigneeKuraray Co., Ltd.
InventorsJunichi Fuji, Ryoko Miyazaki, Takahiro Suzuki
Life of this patent
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Abstract
Disclosed is a composition capable of removing safely and efficiently a sulfur-containing compound contained in a hydrocarbon, particularly hydrogen sulfide, an —SH group-containing compound, or a mixture thereof. Provided is a composition for removal of a sulfur-containing compound in a hydrocarbon, the sulfur-containing compound being hydrogen sulfide, an —SH group-containing compound or a mixture thereof: the composition containing a dialdehyde having 6 to 16 carbon atoms as an active ingredient.
Claims10
A method for removing a sulfur-containing compound in a hydrocarbon, the method comprising contacting the hydrocarbon with a composition consisting of 1) 1,9-nonanedial, 2-methyl-1,8-octanedial, or both;
- 2) optionally, a solvent selected from water, toluene, xylene, heavy aromatic naphtha, petroleum distillate, or a monoalcohol or diol having 1 to 10 carbon atoms;
- and 3) optionally, a nitrogen-containing compound selected from α-amino ether compounds, alkoxy-hexahydrotriazine compounds, alkyl-hexahydrotriazine compounds, hydroxyalkyl-hexahydrotriazine compounds, monoamine compounds, diamine compounds, reaction products between an alkylenepolyamine and formaldehyde, quaternary ammonium salt compounds, imine compounds, imidazoline compounds, hydroxyaminoalkyl ether compounds, morpholine compounds, pyrrolidone compounds, piperidone compounds, alkylpyridine compounds, 1H-hexahydroazepine, polyvalent metal chelate compounds of an aminocarboxylic acid, polyethyleneimine, polyallylamine, polyvinylamine, amino carbinol compounds, aminal compounds, and bisoxazolidine compounds, wherein the sulfur-containing compound is hydrogen sulfide, an —SH group-containing compound, or a mixture thereof.
A method for removing a sulfur-containing compound in a hydrocarbon, the method comprising contacting the hydrocarbon with a composition consisting of 1) 3-methylglutaraldehyde;
- 2) optionally, a solvent selected from water, toluene, xylene, heavy aromatic naphtha, petroleum distillate, or a monoalcohol or diol having 1 to 10 carbon atoms;
- and 3) optionally, a nitrogen-containing compound selected from α-amino ether compounds, alkoxy-hexahydrotriazine compounds, alkyl-hexahydrotriazine compounds, hydroxyalkyl-hexahydrotriazine compounds, monoamine compounds, diamine compounds, reaction products between an alkylenepolyamine and formaldehyde, and quaternary ammonium salt compounds, imine compounds, imidazoline compounds, hydroxyaminoalkyl ether compounds, morpholine compounds, pyrrolidone compounds, piperidone compounds, alkylpyridine compounds, 1H-hexahydroazepine, polyvalent metal chelate compounds of an aminocarboxylic acid, polyethyleneimine, polyallylamine, polyvinylamine, amino carbinol compounds, aminal compounds, and bisoxazolidine compounds, wherein the sulfur-containing compound is hydrogen sulfide, an SH group-containing compound, or a mixture thereof.
Dependencies are inferred from the claim text.