Modified acid compositions as alternatives to conventional acids in the oil and gas industry
An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids.
1. A method of use of a modified acid composition comprising:
providing a composition including a mineral acid and an alkanolamine in a molar ratio ranging from 3:1 to not more than 15:1 and having a pH of less than 1;
introducing the composition to water to be treated in the water treatment industry;
allowing the composition to act upon the water to be treated; and
adjusting pH of the water being treated; and
neutralizing alkaline effluent of the water being treated.
2. The method according to claim 1 , wherein the mineral acid is selected from the group consisting of: HCl, nitric acid, sulfuric acid, sulfonic acid, phosphoric acid, and combinations thereof.
3. The method according to claim 1 , wherein the mineral acid is hydrochloric acid.
4. The method according to claim 3 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 10:1.
5. The method according to claim 3 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 7.0:1.
6. The method according to claim 3 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 4.1:1.
7. The method according to claim 1 , wherein the alkanolamine is selected from the group consisting of: monoethanolamine; diethanolamine; triethanolamine and combinations thereof.
8. The method according to claim 1 , wherein the alkanolamine is monoethanolamine.
9. The method according to claim 1 , wherein the alkanolamine is diethanolamine.
10. A method of use of a modified acid composition comprising: providing the modified acid composition having a mineral acid and an alkanolamine in a molar ratio ranging from 3:1 to not more than 15:1 and having a pH of less than 1; introducing the modified acid composition to soil in the fertilizer/landscaping industry to thereby adjust the pH level of the soil.
11. The method according to claim 10 , wherein the mineral acid is selected from the group consisting of: HCl, nitric acid, sulfuric acid, sulfonic acid, phosphoric acid, and combinations thereof.
12. The method according to claim 10 , wherein the mineral acid is hydrochloric acid.
13. The method according to claim 12 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 10:1.
14. The method according to claim 12 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 7.0:1.
15. The method according to claim 12 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 4.1:1.
16. The method according to claim 10 , wherein the alkanolamine is selected from the group consisting of: monoethanolamine; diethanolamine; triethanolamine and combinations thereof.
17. The method according to claim 10 , wherein the alkanolamine is monoethanolamine.
18. The method according to claim 10 , wherein the alkanolamine is diethanolamine.
19. A method of use of a modified acid composition comprising:
providing a composition including a mineral acid and an alkanolamine in a molar ratio ranging from 3:1 to not more than 15:1 and having a pH of less than introducing the composition to ion exchange beds to be treated;
allowing the composition to act upon the ion exchange beds to be treated; and
regenerating the ion exchange beds.
20. The method according to claim 19 , wherein the mineral acid is selected from the group consisting of: HCl, nitric acid, sulfuric acid, sulfonic acid, phosphoric acid, and combinations thereof.
21. The method according to claim 19 , wherein the mineral acid is hydrochloric acid.
22. The method according to claim 21 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 10:1.
23. The method according to claim 21 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 7.0:1.
24. The method according to claim 21 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 4.1:1.
25. The method according to claim 19 , wherein the alkanolamine is selected from the group consisting of: monoethanolamine; diethanolamine; triethanolamine and combinations thereof.
26. The method according to claim 19 , wherein the alkanolamine is monoethanolamine.
27. The method according to claim 19 , wherein the alkanolamine is diethanolamine.