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US 12,643,802 B2Granted
Use of amine modified nanoparticles for H2S scavenging
AssigneeNissan Chemical America Corporation
InventorsSamuel James Maguire-Boyle, John Edmond Southwell
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Abstract
A process to remove H2S from a stream is described and claimed. The process comprises the steps of adding an amine-functionalized silica nanoparticle composition, and optionally a iriazine. The stream is selected from the group consisting of Oil streams, Gas streams, CO2 point source purification streams and Geothermal Energy System streams.
Claims12
A process to remove H2S from a stream comprising the step of
- (A) adding to the stream a fluid comprising
- (i) an amine-functionalized silica nanoparticle composition, and
- (ii) hexahydro-1,3,5-tris(hydroxyethyl)-s-triazine,
- wherein the amine-functionalized silica nanoparticle composition comprises silica nanoparticles functionalized with an amine selected from the group consisting of N-methylaminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, (N,N-diethylaminomethyl)-triethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 3-aminopropylemethyldimethoxysilane, tri(3-trimethoxysilypropyl)isocyanurate, N-butylaminopropyl-trimethoxysilane, N-(3-triethoxysilyl-propyl)-4,5-dihydroimidazole, triethoxysilylpropylethylcarbamate, uridopropyltrimethoxysilane, N,N′-bis (3-trimethoxysilylpropyl) urea, 4-amino-3,3-dimethylbutyltrimethoxysilane, N-butylaminopropyltrimethoxysilane, N-(trimethoxylsilyl-propyl)ethylenediamine triacetate, (3-trimethoxysilyl-propyl)diethylenetriamine, and N,N′-bis [(3-trimethoxysilyl)propyl]ethylenediamine;
- and
- wherein the stream is selected from the group consisting of Oil streams, Gas streams, CO2 point source purification streams-and Geothermal Energy System streams.
3 more elements
A process to remove H2S from a stream comprising the step of
- (A) adding to the stream a fluid comprising
- (i) an amine-functionalized silica nanoparticle composition, and
- (ii) a triazine, in which the triazine is selected from the group consisting of 1,2,3-triazine and 1,2,4-triazine,
- wherein the amine-functionalized silica nanoparticle composition comprises silica nanoparticles functionalized with an amine selected from the group consisting of N-methylaminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, (N,N-diethylaminomethyl)-triethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 3-aminopropylemethyldimethoxysilane, tri(3-trimethoxysilypropyl)isocyanurate, N-butylaminopropyl-trimethoxysilane, N-(3-triethoxysilyl-propyl)-4,5-dihydroimidazole, triethoxysilylpropylethylcarbamate, uridopropyltrimethoxysilane, N, N′-bis(3-trimethoxysilylpropyl)urea, 4-amino-3,3-dimethylbutyltrimethoxysilane, N-butylaminopropyltrimethoxysilane, N-(trimethoxylsilyl-propyl)ethylenediamine triacetate, (3-trimethoxysily)propyl)diethylenetriamine, and N, N′-bis[(3-trimethoxysilyl)propyl] ethylenediamine;
- and
- wherein the stream is selected from the group consisting of Oil streams, Gasstreams, CO2 point source purification streams and Geothermal Energy System streams.
3 more elements
Dependencies are inferred from the claim text.