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More Ethanol is coming to your Gasoline

 Keep the ethanol in the liquor store where it belongs. But if we must put in the fuel tank of our vehicles, beware the infrastructure ramifications.

Keep the ethanol in the liquor store where it belongs. But if we must put in the fuel tank of our vehicles, beware the infrastructure ramifications.

A recent article in Hydrocarbon Processing prompted my thinking about ethanol with regard to refinery and pipeline/storage issues that have been raised in the past.

Where will the extra facilities needed to blend in transport all of this additional ethanol in our gasoline come from? I postulate that it will come from us, the refiners. But this does not come without risk. There is a reason we have had a blend wall for all these years at 10% ethanol and gasoline. Not to mention the fact that most of the blending was done at the gasoline terminal. At the refinery. we will need to build additional or modify the existing facilities at all levels of the supply chain to achieve these goals.

A quick review of the literature reveals a number of concerns with blending gasoline and ethanol in our facilities. Those include but are not limited to:

In a recent Inspectioneering article about the SCC concern, they highlight the results of API technical report 939–D. extra inspection, wet florescent magnetic particle testing, and mitigation, post weld heat treating (PWHT), are just some techniques that our industry must consider when dealing with the streams.

Some additional resources are shown in an excellent Survey of existing research literature done by Oak Ridge National Laboratory.

References

 

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Posted by: Evan Hyde

Evan Hyde is the director of field services for Coking.com. He previously was president of C2 Nano Technology where they researched surface treatments to combat fouling & corrosion issues in cokers & other petrochemical process units. He was a Senior Engineering Advisor for Becht Engineering Co., Inc. and has consulted on processing improvement and reliability initiatives for coking clients around the world. Prior to joining Becht, Evan worked for ExxonMobil Research and Engineering, as a process engineer, with assignments in research, and troubleshooting for heavy oil upgrading equipment. He holds a B.S. of Chemical Engineering from Pennsylvania State University.

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