Materials Performance Supplements

CORTEC 2017

Materials Performance is the world's most widely circulated magazine dedicated to corrosion prevention and control. MP provides information about the latest corrosion control technologies and practical applications for every industry and environment.

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TABLE 1. IMMERSION TEST RESULTS Sample Treatment Starting Mass (g) Ending Mass (g) Mass Loss (g) Corrosion Rate (mpy) Corrosion Reduction 1 Product A 23.8277 23.8234 0.0043 0.012 98.3% 2 23.8607 23.8567 0.0040 0.011 98.5% 3 23.8432 23.8381 0.0051 0.014 98.1% 4 Control 23.9134 23.6430 0.2704 0.73 N/A TABLE 2. SELECT RESULTS FROM HAZARDOUS CHEMICAL TESTING 9 Chemical Practical Quantification Limit (PQL) Units Result Arsenic 0.09 mg/L N/D(A) Cadmium 0.15 mg/L N/D Chromium 0.1 mg/L N/D Lead 0.08 mg/L N/D Zinc 0.51 mg/L N/D Mercury 0.0005 mg/L N/D 1,1-dichloroethene 6 µg/L N/D Chloroform 5 µg/L N/D Benzene 4 µg/L N/D Toluene 5 µg/L N/D Chlorobenzene 6 µg/L N/D Styrene 5 µg/L N/D Naphthalene 9 µg/L N/D 4,4'-DDT 0.16 µg/L N/D Endrin 0.38 µg/L N/D solution than traditional chemical treat- ment by of fering dosage rates based on surface area compared to costly dosage rates based on volume. Additionally, the minimally invasive application method can of fer significant time savings when compared to traditional coating applica- tions. Humidity testing according to ASTM D1735 and D1748, and immersion testing based on ASTM G-31 showed excellent corrosion protection from the thin film left by Product A. Field application of the float coat product demonstrates the ef ficacy of these points. As shown in Table 2, this treatment does not impact the chemistry of the hydrotest water, allowing for water disposal to be carried out with only mini- mal disruption to normal disposal proce- dures and providing time and cost savings by significantly reducing or eliminating the expensive and lengthy process of handling large volumes of industrial waste. The use of a float coat is an affordable and effective method for corrosion protection of large-volume vessels. Cost savings, time sav- ings, and environmental considerations pro- vide the basis for this novel treatment to vie with traditional preservation methods. References 1. G.H. Stilt, Petroleum Engineering Handbook, Chapter 13, "Oil Storage" (Richardson, TX: SPE International), pp. 505-523. 2. J.A. Veil, "Costs for Off-Site Disposal of Non- hazardous Oil Field Wastes: Salt Caverns Ver- sus Other Disposal Methods," Argonne Na- tional Laboratory for U.S. Dept. of Energy, April 1997. 3. ASTM D1735, "Standard Practice for Testing Water Resistance of Coatings Using Water Fog Apparatus" (West Conshohocken, PA: ASTM International, 2014). 4. ASTM D1748, "Standard Test Method for Rust Protection by Metal Preservatives in Humid- ity Cabinet" (West Conshohocken, PA: ASTM, 2015). 5. ASTM G31-12A, "Standard Guide for Labora- tory Immersion Corrosion Testing of Metals" (West Conshohocken, PA: ASTM, 2013). 6. APHA Method 3120B (1992), "Standard Meth- ods for the Examination of Water and Waste- water" (Washington, DC: APHA, 1992). 7. EPA SW-846 Test Method 8260B, "Volatile Or- ganic Compounds by Gas Chromatograpy/ Mass Spectrometry (GC/MS)" (Washington DC: EPA, 1996). 8. EPA SW-846 Test Method 8081B, "Organo- chlorine Pesticides by Gas Chromatography" (Washington, DC: EPA, 2007). 9. "Water Analysis Report," Lonestar Technical Services LLC, CR46825S1, April 2016. This article is based on CORROSION 2017 paper no. 9366, presented in New Orle- ans, Louisiana, USA. JOHN WULTERKENS is a technical service engineer at Cortec Corp., St. Paul, Minnesota, USA, email: jwulterkens@ cortecvci.com. He has two years of experi- ence in the corrosion industry, working extensively on standard corrosion testing and advising on preservation and corro- sion prevention applications. C A S E Y H E U R U N G i s t h e t e c h n i c a l service engineer at Cortec Corp., email: cheurung@cortecvci.com. He has 2½ years of experience in the corrosion industry. He holds a B.Sc. degree in chemistry. He performs routine testing, offers technical recommendations, and develops products for the company. HOUSSAM SABRY is the manager of Corrosion & Inspection at ADGAS, Abu Dhabi, United Arab Emirates, email: houssam@adgas.com. He holds a B.Sc. degree in mechanical engineering and an M.Sc. degree in materials engineer- ing. He has 23 years of experience in asset integrity, corrosion control, and inspection. Houssam has published more than 30 papers. He has been a NACE member since 2001 and a NACE Cathodic Protection Specialist since 2009. Using a Float Coat for Preservation of Large-Volume Storage Systems 13 CORTEC SUPPLEMENT TO MP MATERIALS PERFORMANCE JUNE 2017

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