US 12,460,123 B2
Sulfonyl azide composition for sulfur scavenging in oilfield operations
Rolando Perez Pineiro, Nisku (CA); Alyn Jenkins, Aberdeen (GB); Jody Hoshowski, Nisku (CA); and Adnan Alhammoud, Nisku (CA)
Assigned to CAMERON INTERNATIONAL CORPORATION, Houston, TX (US)
Appl. No. 19/119,792
Filed by Cameron International Corporation, Houston, TX (US)
PCT Filed Oct. 23, 2023, PCT No. PCT/US2023/035725
§ 371(c)(1), (2) Date Apr. 10, 2025,
PCT Pub. No. WO2024/091459, PCT Pub. Date May 2, 2024.
Claims priority of provisional application 63/380,646, filed on Oct. 24, 2022.
Prior Publication US 2025/0263596 A1, Aug. 21, 2025
Int. Cl. C09K 8/532 (2006.01)
CPC C09K 8/532 (2013.01) [C09K 2208/20 (2013.01)] 10 Claims
 
1. A method, comprising:
adding a benzene sulfonyl azide having the general structure

OG Complex Work Unit Chemistry
to a target material comprising hydrocarbon and sulfur species comprising H2S, mercaptans, or both, wherein R1 and R5 are each, independently, hydrogen or a lower aliphatic alkyl, alkenyl, alkanol, aminoalkyl, or alkanolamine group having 1-5 carbon atoms, and R2-R4 are each independently, hydrogen or a linear, branched, cyclic, or bicyclic aliphatic or aromatic group having 1-10 carbon atoms, and can include hetero-atoms such as oxygen and nitrogen; and
reacting the benzene sulfonyl azide with the sulfur species to remove at least a portion of the sulfur species from the target material,
wherein the benzene sulfonyl azide comprises 4-acetamidobenzenesulfonyl azide.