Stable percarboxylic acid compositions and uses thereof

1. A composition, which composition comprises:

1) a C 1 -C 22 carboxylic acid;

2) a C 1 -C 22 percarboxylic acid;

3) hydrogen peroxide;

4) a first stabilizing agent, which is a picolinic acid or a compound having the following Formula (IA):

wherein

R 1 is OH;

R 2 is OH;

each R 3 is independently (C 1 -C 6 )alkyl, (C 2 -C 6 )alkenyl or (C 2 -C 6 )alkynyl; and

n is a number from zero to 3;

or a salt thereof, and

wherein said first stabilizing agent has a concentration of at least about 0.005 wt-%;

or a compound having the following Formula (IB):

wherein

R 1 is OH;

R 2 is OH;

each R 3 is independently (C 1 -C 6 )alkyl, (C 2 -C 6 )alkenyl or (C 2 -C 6 )alkynyl; and

n is a number from zero to 3;

or a salt thereof;

5) a second stabilizing agent, which is a compound having the following Formula (IIA):

wherein

R 1 , R 2 , R 3 , and R 4 are independently hydrogen;

R 5 is (C 1 -C 6 )alkyl, (C 2 -C 6 )alkenyl or (C 2 -C 6 )alkynyl; and

R 6 is hydrogen, (C 1 -C 6 )alkyl, (C 2 -C 6 )alkenyl or (C 2 -C 6 )alkynyl;

or a salt thereof, and

wherein said second stabilizing agent has a concentration of at least about 0.1 wt-%; and

wherein said C 1 -C 22 percarboxylic acid has a concentration of about 10 wt-% to about 30 wt-%, said hydrogen peroxide has a concentration of at least about 0.1 wt-%, said C 1 -C 22 percarboxylic acid has a concentration of at least about 3 times of the concentration of said hydrogen peroxide, and said composition has a pH at about 4 or less, and said composition retains at least about 80% of the C 1 -C 22 percarboxylic acid activity after storage of about 30 days at about 50° C.

2. The composition of claim 1 , wherein the C 1 -C 22 percarboxylic acid has a concentration of at least about 5 times of the concentration of the hydrogen peroxide.

3. The composition of claim 1 , wherein the C 1 -C 22 carboxylic acid comprises acetic acid, octanoic acid and/or sulfonated oleic acid.

4. The composition of claim 1 , wherein the C 1 -C 22 carboxylic acid has a concentration of about 50 wt-%, the C 1 -C 22 percarboxylic acid has a concentration of about 20 wt-%, and the hydrogen peroxide has a concentration of at least about 3 wt-%.

5. The composition of claim 1 , wherein the first stabilizing agent is a 2,6-pyridinedicarboxylic acid, or a salt thereof, and the second stabilizing agent is HEDP, or a salt thereof.

6. The composition of claim 1 , wherein the first and second stabilizing agents delay or prevent the composition from exceeding its self-accelerating decomposition temperature (SADT).

7. The composition of claim 1 , which retains at least about 90% of the C 1 -C 22 percarboxylic acid activity after storage of about 30 days at about 50° C.

8. A method for treating water, which method comprises providing a composition of claim 1 to a water source in need of treatment to form a treated water source, wherein said treated water source comprises from about 1 ppm to about 1,000 ppm of said C 1 -C 22 percarboxylic acid.

9. The method of claim 8 , wherein the water source in need of treatment is selected from the group consisting of fresh water, pond water, sea water, produced water and a combination thereof.

10. The method of claim 8 , wherein the C 1 -C 22 percarboxylic acid comprises peroxyacetic acid, peroxyoctanoic acid and/or peroxysulfonated oleic acid.

11. The method of claim 8 , wherein the treated water source retains at least about 60% of the initial C 1 -C 22 percarboxylic acid activity in the treated water source for 15 minutes after the treated water source is formed.

12. The method of claim 8 , which further comprises directing the treated water source into a subterranean environment or disposing of the treated water source.

13. The method of claim 8 , wherein the water source does not comprise reuse water, the treated water source comprises from about 10 ppm to about 20 ppm of the C 1 -C 22 percarboxylic acid and from about 1 ppm to about 2 ppm of hydrogen peroxide and the treated water source does not comprise a friction reducer and/or a rheology modifier.

14. The method of claim 8 , wherein the water source is a blended water source that comprises about 80 wt-% fresh water or pond water and about 20 wt-% of reuse water, the treated water source comprises from about 25 ppm to about 35 ppm of the C 1 -C 22 percarboxylic acid and from about 2 ppm to about 3 ppm of hydrogen peroxide and catalase, the treated water source does not comprise a friction reducer and/or a rheology modifier, and the treated water source is formed before reaching a blending tub.

15. The method of claim 8 , wherein the water source is a blended water source that comprises about 80 wt-% fresh water or pond water and about 20 wt-% of reuse water, the treated water source comprises from about 25 ppm to about 35 ppm of the C 1 -C 22 percarboxylic acid and from about 2 ppm to about 3 ppm of hydrogen peroxide and catalase, the treated water source comprises a friction reducer and/or a rheology modifier, and the treated water source is formed in a blending tub.

16. The method of claim 8 , wherein the treated water source comprises from about 30 ppm or less of the C 1 -C 22 percarboxylic acid and about 0.5 ppm or less of the hydrogen peroxide, the treated water source comprises a friction reducer and/or a rheology modifier, and the treated water source is directed into or is at a subterranean environment.

17. The composition of claim 1 , which does not comprise a mineral acid.

18. The composition of claim 6 , which does not comprise a mineral acid.

19. The composition of claim 7 , which does not comprise a mineral acid.

20. The composition of claim 1 , wherein the first stabilizing agent has a concentration from about 0.005 wt-% to about 5 wt-%.

21. The composition of claim 1 , wherein the second stabilizing agent has a concentration from about 0.1 wt-% to about 10 wt-%.