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Green Diesel Production from Vegetable Oil

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Green Diesel Production from Vegetable Oil

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    1. Green Diesel Production from Vegetable Oil

    2. The UOP/Eni Green Diesel Process Development Objectives Joint development of UOP and Eni Develop a processing route to convert vegetable oil to high quality diesel Economic Sustainable Leverages refinery assets and infrastructure

    3. What is Green Diesel ? Diesel made by hydrotreating biofeeds to remove oxygen and break bonds at oxygen linkages Works well on triglycerides and high FFA feeds (vegetable oils and greases) Requires H2

    5. Vegetable Oil Processing Alternatives

    6. Biodiesel Balance: The Problems

    7. Green Diesel Balance: The Solution

    8. Biofeedstock Comparison

    9. Composition of Oils and Greases (10-12% Oxygen, Olefins, trace sulfur)

    10. Green Diesel Reactions Decarboxylation Hydrodeoxygenation Hydroisomerization

    11. Cloud Points of N-Paraffins

    12. Processing Vegetable Oil with the UOP/ENI Ecofining Process to make Green Diesel Upgrade vegetable oil using hydroprocessing Product is an high cetane diesel blending component Hydrocarbon product, not an oxygenated compound Co-production of propane, naphtha, and high quality jet fuel possible

    13. Cloud Point vs Iso/Normal ratio

    14. Green Diesel Process Performance

    15. Extensive Pilot Plant Testing to Establish Process Viability

    16. Green Diesel Fuel Properties

    17. Green Diesel Blending Benefits Green Diesel has a high cetane and is similar to GTL and CTL diesel Cold flow properties are controlled by paraffin isomerization These properties make Green Diesel a premium blending component Permits blending low value LCO into ULSD or a reduction in cetane enhancing additives

    18. Green Diesel Economics

    19. UOP/Eni Green Diesel Process Commercialization Status Intensive co-development program with Eni since 2005 Basic engineering design completed 2Q07 First commercial unit start-up in 2009

    20. Feeds for Ecofining Process Feeds Tested so far Soybean Oil Canola Oil Palm Oil Jatropha Used Cooking Oils Tallow Feeds for Future testing Algae oil Tall Oil Yellow Grease

    21. Vegetable Oil Co-Processing Issues Significant cost associated with co-processing at >10% vegetable oil Reactor design changes may be needed to accommodate additional heat release Revamp of the recycle H2 system to account for CO, CO2 and H2O production Need a pretreat reactor to remove Na, Ca, P and other metals in the vegetable oil feedstock Cold flow property issues may limit the volume of vegetable oil that can be processed A more cost effective solution is a unit optimally designed to process biologically derived feedstocks

    22. Comparison of Diesel from Petroleum with Biofuels

    23. Summary UOP and Eni are licensing the Ecofining Process to produce diesel from vegetable oil and greases Green Diesel has superior fuel properties The UOP/ENI Ecofining Process is more sustainable and has better economics than biodiesel Longer term, technology development is focused on the utilization of waste biomass and algae oil

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