A composition and method for reducing the corrosivity of demineralized water in a recirculating water system
By adding a combination of alkaline substances, hydrogen peroxide, and hydroxycarboxylate to demineralized water, an oxide film is formed to protect the surface of carbon steel, solving the corrosion problem of demineralized water under high temperature conditions and achieving a low-cost and environmentally friendly corrosion reduction effect.
CN122444355APending Publication Date: 2026-07-24CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2025-01-22
- Publication Date
- 2026-07-24
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Figure CN122444355A_ABST
Abstract
The present disclosure relates to a composition for reducing the corrosiveness of desalted water in a circulating water system and a method for reducing the corrosiveness of desalted water in a circulating water system, the composition containing an alkaline substance, hydrogen peroxide and a hydroxyl carboxylic acid salt; the mass ratio of the content of the alkaline substance, hydrogen peroxide and the hydroxyl carboxylic acid salt in the composition is 1:(2-80):(0.1-7). The composition of the present disclosure can effectively reduce the corrosion rate of carbon steel when the desalted water is not subjected to oxygen removal treatment and contains iron ions, and the operation process is simple and the operation cost is low.
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