Invention Description
Corrosion of steel in industrial environments such as oil and gas, water treatment, and marine systems leads to significant economic losses and infrastructure damage. Many conventional corrosion inhibitors are petroleum-based, non-biodegradable, and pose environmental and safety concerns. Additionally, these chemicals may not perform effectively in aqueous or semi-aqueous conditions where corrosion is most prevalent. This creates a need for sustainable, high-performance corrosion inhibitors that are both environmentally friendly and effective in harsh conditions.
Researchers at Arizona State University have developed an environmentally-friendly, biodegradable composition, derived from modifying a bio-based waste, to produce an amphiphilic corrosion inhibitor that significantly protects carbon steel pipelines against corrosion and microbial-induced degradation. The modification process enhances water dispersibility and adsorption strength on carbon steel and other metal surfaces, forming a compact protective film that suppresses electrochemical corrosion processes. It offers strong adhesion and excellent water solubility for use in harsh and aqueous environments. Because it was designed especially for use in corrosive environments, this inhibitor demonstrates high efficiency—exceeding 96%—and excellent industrial applicability. Further, by upcycling waste materials, the technology aligns with circular economy principles while delivering improved corrosion protection compared to traditional inhibitors.
This eco-friendly, corrosion inhibitor successfully protects metal surfaces, making it well-suited for a range of industrial applications, including oil and gas, water systems, and marine infrastructure.
Potential Applications
- Corrosion protection for oil and gas pipelines and infrastructure
- Water treatment plants and distribution systems
- Marine infrastructure and offshore platforms
- Industrial cooling and processing equipment
- Storage tanks and refineries
- Industrial applications requiring corrosion protection in wet, acidic, or gas-rich environments
Benefits and Advantages
- Demonstrated performance through multiple characterization techniques (FTIR, SEM, EIS, polarization)
- Biodegradable and derived from renewable waste resources, reducing environmental impact
- The molecular structure improves water compatibility and adsorption to metal surface
- Forms a uniform, defect-resistant protective barrier film enhancing durability
- Effective in corrosive environments with CO2, H2S, and moisture
- Compatible with standard industrial equipment and processes
- Scalable and cost-effective synthesis using common reagents
- Eliminates the need for hazardous organic solvents
- Suppresses microbial activities when combined with natural biocides, addressing MIC challenges