Dave Paynter is a consultant with AOTA Energy Consultants, specializing in petroleum refining technical management. He has more than 35 years of experience with ExxonMobil in refining process research and development, engineering and manufacturing management. At retirement, he was the head of ExxonMobil’s regional engineering office in Singapore. Prior to this assignment, he headed the company’s refining process development laboratory in Baton Rouge, Louisiana. Dr. Paynter holds a BS degree in chemical engineering from the University of Louisville, as well as an MS degree and a PhD in chemical engineering from Northwestern University.
In Part 1 of this article, economic incentives were estimated for relaxing the requirement that biocrude entering the refinery infrastructure be oxygen (O2)-free. It was concluded that an accurate estimate of these incentives is not possible without a significant amount of additional data. Part 2 examines key issues that must be addressed and the associated data needed for this constraint to be relaxed.
In Part 1 of this article, the incentives and information needed to relax the constraints of being O2-free are outlined. The authors hope that this perspective provides new directions for improving the economics of using pyoil to produce advanced biofuels (ABFs).