1 / 18

Diesel Sustainability Improvement through Incorporation of Waste Cooking Oil in existing Thessaloniki Refinery

This study evaluates the technical and sustainability feasibility of incorporating waste cooking oil (WCO) as an alternative feedstock for diesel production in the existing refinery. The aim is to improve the sustainability of diesel by reducing greenhouse gas emissions and utilizing WCO, which is currently problematic in terms of disposal. The study examines catalyst evaluation, optimal operating conditions, and the effect of WCO on diesel quality. Preliminary results show a potential reduction of GHG emissions by 21.4%.

connp
Download Presentation

Diesel Sustainability Improvement through Incorporation of Waste Cooking Oil in existing Thessaloniki Refinery

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CERTH DIESEL SUSTAINABILITYIMPROVEMENT PERSPECTIVESBY INCORPORATIONOF WASTE COOKING OILIN EXISTING REFINERYOF THESSALONIKI Stella Bezergianni, Athanasios Dimitriadis, Loukia Chrysikou Laboratory of Environmental Fuels and Hydrocarbons (LEFH) Chemical Processes and Energy Sources Institute (CPERI) Centre for Research and Technology Hellas (CERTH) 5th International Scientific Conference on "Energy and Climate Change", Athens, October 11, 2012

  2. Engine performance problems Biomass requiresH/Candremoval of Ο and Η2Ο Biomass for Biofuels • Renewable • Low H/C ratio • Contains water • Corrosion problems • High oxygen content (aldehydes, acids, cetones) • Reduced heating value • Reduced oxidation stability • Increased acidity

  3. Why Catalytic Hydrotreating? Widespread conversion technology for diesel and gasoline upgrading H/C ratio increase Heteroatom (S, N, O) and metals removal High conversion Feedstock variability No by-products Application in numerous refineries globally Utilization for green diesel production from vegetable oils NExBTL, Ecofining, Vegan

  4. Why Waste Cooking Oil (WCO)? Available feedstock from restaurants and households 280,000m3 (conservative estimation) Problematic disposal Sewage, sanitary landfills Part of WCO used for biodiesel production via transesterification technology Reduces biodiesel (FAME) quality Potential to cover a significant portion of Greek biodiesel production in Greece Currently FAME requirements ~ 150,000m3 FAME (6.5% diesel)

  5. 2ndInnovation Award • Better combustion (increased cetane) • More economic (high HHV) • More stable (no TAN, high IP) • Sustainable + Η2 catalyst ? • Large-scale units require large investments www.biofuels2g.gr Waste Cooking Oil Diesel-2G Potential to cover 9,5% of Greek diesel demand

  6. SustainDiesel Project • Aim: Improvement of diesel sustainability by incorporating WCO and RES in existing refinery • Project duration: 23.3.2011 – 22.3.2014 • Partners: • Coordinator: Centre for Research & Technology Hellas (CERTH) • Academic partners: Aristotle University of Thessaloniki & National Technical University of Athens • Industrial partners: Hellenic Petroleum & Sunlight S.A. • Financing: Program Competitiveness (ESPA) with funds from EU and Greek Government

  7. Emissions Emissions WCO H2 from RES SustainDiesel TechnologyOverview • Evaluate technical feasibility of incorporating WCO as alternative feedstock for diesel production • Same infrastructure & operation • Assess carbon footprint and GHG emissions improvement versus current market diesel Refinery Other products Crude oil Diesel FAME Energy

  8. A. Technical Feasibility Evaluation of hydrotreating catalyst Determine optimal operating conditions T, P, Η2/oil, LHSV Determine max WCO mixing ratio Evaluate emissions & engine performance  

  9.  Evaluation of Catalyst • Two catalyst types examined • NiMo & CoMo • For HDT of fossil feedstocks optim CoMo • For HDT fossil + WCO feedstocks optim NiMo

  10.  Determine Optimal Conditions • All operating parameters examined • T, P, H2/oil, LHSV • Operating window as defined by the refinery • Optimal operating parameters defined based on maximum diesel yield and quality

  11. Effect of WCO on HDT • WCO affects positively HDT of fossil fractions (HAGO) • Diesel yield is favored for increasing WCO • Effect of WCO in diesel quality is positive • Product sulfur is unaffected by WCO presence • Denitrogenation is favored by WCO

  12. B. Sustainability Analysis • Aims: • Evaluation of carbon foot-print and GHG emissions of current diesel production technology • Evaluation of sustainability improvements by incorporating WCO and H2 from RES • Tools: • GEMIS software (edition 4.7) • Refinery data for GHG emissions, origin of feedstocks and energy requirements • Experimental data for proposed integration of WCO and H2 from RES

  13. Energy crops cultivation Transportation to biorefinery Biodiesel Production Diesel Production FAME (biodiesel) production Transportation to refinery Crude oil extraction Crude oil transportation Refining process Diesel transportation to gas stations Fuel combustion Current Diesel Production Pathway

  14. Expected reduction of GHG emissions by 21.4% Preliminary Results * Calculations are based on substituting 30% of fossil fraction (HAGO) with WCO

  15. Next Steps • Evaluation of maximum WCO ratio that can be incorporated in existing refinery • Assessment of maximum potential GHG emission benefits by incoporating WCO and H2 from RES • Economic feasibility analysis

  16. «...ἐν τῷ γνωστῷ τελευταία ἡ τοῦ ἀγαθοῦ ἰδέα καὶ μόγις ὁρᾶσθαι, ὀφθεῖσα δὲ συλλογιστέαεἶναι ὡς ἄρα πᾶσι πάντων αὕτη ὀρθῶν τε καὶ καλῶν αἰτία,...»[Πλάτων, Πολιτεία 514-521] (427-347 BC) “...in the sphere of knowledge, the ultimate and most difficult idea is that of virtue, but if this becomes visible it can be the cause of everything right and benign affecting our lives…”[Plato, The Republic 514-521]

  17. International Conference on Biofuels for Sustainable Development of Southern Europe Thessaloniki, 19-20 November 2012 www.bio4sud.gr CERTH Thank you for your attention Dr. Stella Bezergianni sbezerg@cperi.certh.gr Tel: 2310498315 | Fax:2310498380

More Related