Monitoring Conditions Leading to SCC/Corrosion of Carbon Steel in Fuel Grade Ethanol

Sridhar, Narasi; Det Norske Veritas, Incorporated

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Monitoring Conditions Leading to SCC/Corrosion of Carbon Steel in Fuel Grade Ethanol

2011-02-11
By Sridhar, Narasi

[PDF-518.63 KB]

English

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Creators:

Sridhar, Narasi
Corporate Creators:

Det Norske Veritas, Incorporated
Corporate Contributors:

United States. Dept. of Transportation. Pipeline and Hazardous Materials Safety Administration
Subject/TRT Terms:

[+]

Carbon Steel Chlorides Cracking Dissolved Oxygen Concentration Ethanol Fuel Mixtures Monitoring Pipelines Research Hub Steel Pipe Stress Corrosion
Publication/ Report Number:

Report No. 2010-9382 ; Project No. 86082756

Report No. 2010-9382 ; Project No. 86082756 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

01640828
Edition:

Final Report
Corporate Publisher:

Det Norske Veritas, Incorporated
Abstract:

Pipeline companies have a keen interest in assessing the feasibility of transporting fuel grade ethanol (FGE) and ethanol blends in existing pipelines. A 2003 survey of industry, reported in API Technical Report 939-D (2nd edition), indicates that stress corrosion cracking (SCC) has been observed primarily in user terminals exposed to ethanol products, but not in ethanol producer tanks, rail/tank car/shipping transportation, nor end-user systems (e.g., gas tanks). More recently, a short segment of pipeline transporting FGE in North America was reported to have suffered SCC. In contrast, Brazil, which has transported anhydrous and hydrous ethanol for many years, has not reported any SCC in their pipeline system. At present, there is an incomplete understanding of why the occurrence of SCC differs so significantly in different parts of the supply chain. Monitoring some of the factors that affect SCC, dissolved oxygen and corrosion potential, may lead to a better understanding of SCC risks.
Format:

PDF
Funding:

DTPH56-08-T-000013
Collection(s):

PHMSA Collection US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:8b980ee1766b22c1dc928156ee6f8edd9eff483de13bb12c79485c3bdfec3f44
Download URL:

https://rosap.ntl.bts.gov/view/dot/34499/dot_34499_DS1.pdf
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Monitoring Conditions Leading to SCC/Corrosion of Carbon Steel in Fuel Grade Ethanol

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