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US 2022/0033977 A1Published application
Phosphorous-free oil soluble molybdenum complexes as high temperature fouling inhibitors
AssigneeEcolab USA Inc.
InventorsOmer Gul, Oussama Zenasni, Philip Andrew Thornthwaite
Life of this patent
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Abstract
Disclosed are sulfur-containing molybdenum complexes used in compositions and methods for inhibiting or reducing the deposition of foulant on equipment.
Claims20
A method of inhibiting deposition of a foulant comprising:
- introducing into a process equipment or a fluid in contact with the process equipment a composition comprising a sulfur-containing molybdenum complex having the general formula selected from Formula I or II:
- Wherein R represents an oxygen, nitrogen or carbon-containing compounds such as alcohols, alkyl, alkenyl, amides, amines, or aryl groups;
- n is 4-10.
- R and R′ each represents an oxygen, nitrogen or carbon-containing compounds such as alcohols, alkyl, alkenyl, amides, amines, or aryl groups;
- and X represents oxygen or sulfur and can be the same or different but where at least one X in the formula is sulfur.
2 more elements
A composition comprising sulfur-containing molybdenum complex to inhibit deposition of a foulant in contact with process equipment, the sulfur-containing molybdenum complex
- Wherein R represents an oxygen, nitrogen or carbon-containing compounds such as alcohols, alkyl, alkenyl, amides, amines, or aryl groups;
- n is 4-10.
- R and R′ each represents an oxygen, nitrogen or carbon-containing compounds such as alcohols, alkyl, alkenyl, amides, amines, or aryl groups;
- and X represents oxygen or sulfur and can be the same or different but where at least one X in the formula is sulfur.
1 more element
A treated process equipment comprising:
- a process equipment comprising a metal surface and a fluid source comprising the sulfur-containing molybdenum complex, wherein at least a portion of the metal surface is contacted by the fluid source and
- the sulfur-containing molybdenum complex having the general formula selected from Formula I or II:
- Wherein R represents an oxygen, nitrogen or carbon-containing compounds such as alcohols, alkyl, alkenyl, amides, amines, or aryl groups;
- n is 4-10.
- R and R′ each represents an oxygen, nitrogen or carbon-containing compounds such as alcohols, alkyl, alkenyl, amides, amines, or aryl groups;
- and X represents oxygen or sulfur and can be the same or different but where at least one X in the formula is sulfur.
3 more elements
Dependencies are inferred from the claim text.