Abstract
The compatibility of four potential bio-derived blendstock molecules with infrastructure elastomers was determined by measuring the volume change following exposure. The blendstock molecules included 1-propanol, diisobutylene, cyclopentanone, and a furan mixture. The elastomers included two fluorocarbons, six nitrile rubbers (NBRs), and one each of fluorosilicone, neoprene, polyurethane, and silicone. The elastomers were exposed to the fuel molecules as blends ranging from 0 to 30 vol.% in both a blendstock for oxygenate blending (BOB) formulation and an E10 fuel. Silicone exhibited excessive swelling in each test fuel, while the other elastomers showed good compatibility (low swell) with diisobutylene, 1-propanol, and the furan mixture when BOB was used as the base fuel. The E10 base fuel produced high (>30%) swell in neoprene, polyurethane, and some nitrile rubbers. In most cases diisobutylene produced the least amount of volume expansion. In contrast, the addition of cyclopentanone produced unacceptably high swelling in each elastomer and is not considered suitable for use with these fuels. Analysis of the results showed that the swelling behavior is predominantly due to the polarity of the elastomer and test fuels.
| Original language | English |
|---|---|
| Pages (from-to) | 167-182 |
| Number of pages | 16 |
| Journal | SAE International Journal of Fuels and Lubricants |
| Volume | 12 |
| Issue number | 3 |
| DOIs | |
| State | Published - Aug 21 2019 |
Funding
This article and the work described were sponsored by the U.S. Department of Energy (DOE) Bioenergy Technologies Office (BETO) and Vehicle Technologies Office (VTO) under the DOE Co-Optimization of Fuels and Engines Initiative. The authors gratefully acknowledge the support and direction of Alicia Lindauer at BETO, Kevin Stork at VTO, and the Co-Optima leadership team. The authors are also very appreciative of the cooperation and guidance received from Dr. Steven Abbott of the Hansen Solubility Team. Oak Ridge National Laboratory is a multiprogram laboratory operated by UT-Battelle for the U.S. DOE under contract DE-AC0500OR22725. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for the United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).
Keywords
- 1-Propanol
- Compatibility
- Cyclopentanone
- Diisobutylene
- Elastomer
- Fluorocarbon
- Fluorosilicone
- Furan
- NBR
- Neoprene
- Polyurethane