IP Library › Granted Patent US 12,661,615
Granted Patent B2
US 12,661,615 · App. 18/546,759 · Granted Jun 23, 2026

Use of melamine cyanurate nanoparticles and silica nanoparticles for H2S scavenging

Inventors: John Edmond Southwell (Glen Ellyn, IL); Samuel James Maguire-Boyle (Spring, TX)
Assignee: Nissan Chemical America Corporation
B01D53/52B01D53/78C10G17/09B01D2252/20436B01D2253/106B01D2257/304C10G2300/207
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Quick Facts
Patent No.
US 12,661,615
App. No.
18/546,759
Granted
Jun 23, 2026
Kind
B2
Abstract

A process to remove H 2 S from a stream comprising the steps of adding Melamine cyanurate, optionally a silica nanoparticle composition, and optionally a triazine. The stream is selected from the group consisting of Oil streams, Gas streams, CO 2 point source purification streams and Geothermal Energy System streams.

Claims (6)

1 . A process to remove H 2 S from a stream comprising the step of:

adding a fluid comprising

(i) a melamine cyanurate,

(ii) a silica nanoparticle composition, and

(iii) a triazine,

to the stream, wherein the stream is selected from the group consisting of Oil streams, Gas streams, CO 2 point source purification streams, and Geothermal Energy System streams.