Determining the Effects of Ethanol on Pump Station Facilities

There is interest within the pipeline industry in transporting fuel grade ethanol in petroleum pipelines. A significant issue is compatibility of the pipeline materials with ethanol. Other research programs are addressing compatibility issues with elastomers and pipeline steel construction materials. The objective of this project is to investigate ethanol - materials compatibility issues for components involved in pump station facilities. The project is divided into three phases; Survey of Knowledge and Gaps (Phase 1), Detailed Study to Close Gaps Identified in Phase 1 (Phase 2), and Development of Guidelines (Phase 3). This report summarizes the results of Phase 1. This phase consisted of three Tasks; Industry Survey (Task 1), Literature Search (Task 2), and Report (Task 3). There was insufficient information in the literature to confirm the compatibility of any of the metallic materials, primarily because of the absence of information on the stress corrosion cracking behavior. Nevertheless, several of these metallic materials are probably compatible; these include copper base alloys (excluding brasses), nickel base alloys, and stainless steels. A number of elastomeric materials are compatible in ethanol, including Teflon, PEEK, and Viton®. Other elastomers, nitrile rubber, and nylon probably are compatible in ethanol but might exhibit swelling problems in gasoline or gasoline ethanol blends. One Viton®, Viton® A, also exhibits swelling problems in gasoline and ethanol-gasoline blends containing high gasoline concentrations. Polyurethane is not compatible with ethanol.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; References; Tables;
  • Pagination: 61p

Subject/Index Terms

Filing Info

  • Accession Number: 01640217
  • Record Type: Publication
  • Report/Paper Numbers: EP001681
  • Contract Numbers: PR-186-09204
  • Files: TRIS, ATRI, USDOT
  • Created Date: Jun 20 2017 9:35AM