Removal of hydrogen sulfide and/or mercaptans from oil or oil derivatives and treatment compositions for accomplishing the same
AssigneeRipcord Energy Solutions, LLC
InventorsLinda Esther Schweitzer, Bobby Burkes, Sr.
Life of this patent
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Abstract
Aqueous treatment compositions for crude oil and/or petroleum distillates to remove sulfur compounds therefrom and treatment methods using such compositions are disclosed. The composition has less than 0.5% wt/wt di- or tri-benzohydroxy compound, a strong base, less than 1% wt/wt divalent metal gluconate, a balance of water, and a pH that is 9 or greater. The treatment method includes adding said treatment composition to crude oil or a petroleum distillate to form a mixture having 0.001% to 0.02% wt di- or tri-benzohydroxy compound/wt oil and 0.001% to 0.03% wt divalent metal gluconate/wt oil and mixing the same together.
Claims20
A method of treating crude oil or petroleum distillates, the method comprising:
- providing a crude oil or a petroleum distillate;
- adding a treatment composition to the crude oil or the petroleum distillate, wherein the treatment composition has a pH of 9 or greater and comprises:
- (a) less than 1% wt/wt di- or tri-benzohydroxy compound;
- (b) a strong base;
- (c) less than 0.5% wt/wt divalent metal gluconate;
- and
- (d) a balance of water;
- and
- mixing the treatment composition and the crude oil or petroleum distillate to form a mixture comprising 0.001% to 0.02% wt (a)/wt crude oil or petroleum distillate and 0.001% to 0.03% wt (c)/wt crude oil or petroleum distillate;
- wherein (a) in the presence of (c) oxidizes a sulfur compound in the crude oil or petroleum distillate, thereby reducing the amount of the sulfur compound in the crude oil or petroleum distillate.
A treatment composition for crude oil and/or petroleum distillates comprising:
- (a) less than 1% wt/wt di- or tri-benzohydroxy compound;
- (b) a strong base;
- (c) less than 1% wt/wt divalent metal gluconate or metallic zinc powder;
- and
- (d) balance water;
- wherein the treatment composition has a pH of 9 or greater.
Dependencies are inferred from the claim text.