Nitro-substituted aromatic acid corrosion inhibitors for alkanolamine gas treating system专利检索-酸性气体天然气燃料气体燃料种类专利检索查询-专利查询网

Nitro-substituted aromatic acid corrosion inhibitors for alkanolamine gas treating system

阅读：152发布：2023-04-06

专利汇可以提供Nitro-substituted aromatic acid corrosion inhibitors for alkanolamine gas treating system专利检索，专利查询，专利分析的服务。并且Corrosion of metallic surfaces by aqueous alkanolamine solutions employed in acid gas removal service can be inhibited by combinations of antimony and vanadium compounds, stannous salts, organo-tin compounds, nitro aromatic acids and their salts or benzotriazole.，下面是Nitro-substituted aromatic acid corrosion inhibitors for alkanolamine gas treating system专利的具体信息内容。

权利要求

1. A CORROSION INHIBITED COMPOSITION CONSISTING ESENTIALLY OF AN AQUEOUS ALKANOLAMINE SOLUTION EMPLOYED IN ACID GAS REMOVAL SERVICE AND AN INHIBITING AMOUNT OF A CORROSION NHIBITOR SELECTED FROM THE CLASS CONSISTING OF: NITRO-SUBSTITUTED AROMATIC ACIDS AND NITRO-SUBSTITUTED ACI SALTS.

2. Composition claimed in claim 1 wherein the corrosion inhibitor is sodium m-nitro-benzoate.

3. Composition claimed in claim 1 wherein the corrosion inhibitor is sodium 4-nitro-phthalate.

4. Composition claimed in claim 1 wherein the corrosion inhibitor is nitro-terephthalic acid.

5. Method for inhibiting corrosion of metallic surfaces by an aqueous alkanolamine solution employed in acid gas removal service comprising adding to said aqueous alkanolamine solution an inhibiting amount of a corrosion inhibitor selected from the group consisting of: nitro-substituted aromatic acids and nitro-substituted aromatic acid salts.

6. Method claimed in claim 5 wherein said aqueous alknaolamine solution is an aqueous monoethanolamine system.

7. Method claimed in claim 5 wherein said corrosion inhibitor is present in an amount of from about 0.01 to about 2.0 percent by weight based upon the weight of said aqueous alkanolamine solution.

8. Method claimed in claim 5 wherein the corrosion inhibitor is nitro-terephthalic acid.

9. Method claimed in claim 5 wherein the corrosion inhibitor is sodium m-nitro-benzoate.

10. Method claimed in claim 5 wherein the corrosion inhibitor is sodium 4-nitro-phthalate.

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Nitro-substituted aromatic acid corrosion inhibitors for alkanolamine gas treating system

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