Progress in research on slow-release high-temperature resistant corrosion inhibitors
Slow-release high-temperature resistant corrosion inhibitors can maintain effective concentrations in specific environments,extending their service life,reducing the required dosage,and lowering costs through the controlled release of active components.This process significantly improved the corrosion resistance of equipment and pipelines under extreme conditions.The current applications of slow-release technologies for various high-temperature corrosion inhibitors,including imidazolines,quaternary ammonium salts,and organic amines were reviewed.Among these,integrating physical and chemical slow-release techniques was a critical future development,with a particular focus on chemical slow-release methods due to their responsiveness to temperature and pH.Currently,solid corrosion inhibitors exhibited superior performance compared to liquid ones;however,slow-release technologies,particularly gluing techniques,required further optimization to improve the effective content of the agents,strengthen the gluing,and reduced residue formation.Therefore,further exploration of novel corrosion inhibitors and their slow-release mechanisms,especially regarding stability under extreme high-temperature and high-salinity conditions,will be crucial for advancing in this field.
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