Optimizing Blendstock Composition and Ethanol Feedstock to Reduce Gasoline Well-to-Pump CO 2 Emission

Handle URI:
http://hdl.handle.net/10754/624041
Title:
Optimizing Blendstock Composition and Ethanol Feedstock to Reduce Gasoline Well-to-Pump CO 2 Emission
Authors:
Zhang, Bo; Sarathy, Mani ( 0000-0002-3975-6206 ) ; Abdul-Manan, Amir F.N.
Abstract:
Lifecycle CO2 emission of ethanol blended gasoline was simulated to investigate how fuel properties and composition affect overall emission. Fuel research octane number (RON), octane sensitivity and ethanol content (derived from sugarcane and corn) were varied in the simulations to formulate blended fuels that economically achieve target specifications. The well-to-pump (WTP) simulation results were then analyzed to understand the effects of fuel composition on emission. Elevated ethanol content displaces aromatics and olefins required in gasoline blendstock to reach a target fuel specification. The addition of greater sugarcane-based ethanol percentage in constant aromatics and olefins fuel reduces its WTP CO2 emission. Corn-based ethanol blending does not offer CO2 emission offset due to its high production emissions. The mixing of sugarcane-based with corn-based ethanol is shown to be a potentially effective method for achieving a blended fuel with a lower lifecycle CO2 emission. Besides CO2 emission, the total greenhouse gas (GHG) emission from land-use conversions (LUC), CH4, and N2O are also significant in determining the optimal fuel blend. Herein, we present preliminary results showing that total GHG emissions significantly increase when either corn or sugarcane ethanol is blended at even small percentages; detailed results will be addressed in future communications.
KAUST Department:
Clean Combustion Research Center
Citation:
Zhang B, Sarathy SM, Abdul-Manan AFN (2017) Optimizing Blendstock Composition and Ethanol Feedstock to Reduce Gasoline Well-to-Pump CO 2 Emission. Energy Procedia 105: 3642–3647. Available: http://dx.doi.org/10.1016/j.egypro.2017.03.840.
Publisher:
Elsevier BV
Journal:
Energy Procedia
Issue Date:
2-Jun-2017
DOI:
10.1016/j.egypro.2017.03.840
Type:
Article
ISSN:
1876-6102
Additional Links:
http://www.sciencedirect.com/science/article/pii/S1876610217309220
Appears in Collections:
Articles; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Boen
dc.contributor.authorSarathy, Manien
dc.contributor.authorAbdul-Manan, Amir F.N.en
dc.date.accessioned2017-06-05T06:02:24Z-
dc.date.available2017-06-05T06:02:24Z-
dc.date.issued2017-06-02en
dc.identifier.citationZhang B, Sarathy SM, Abdul-Manan AFN (2017) Optimizing Blendstock Composition and Ethanol Feedstock to Reduce Gasoline Well-to-Pump CO 2 Emission. Energy Procedia 105: 3642–3647. Available: http://dx.doi.org/10.1016/j.egypro.2017.03.840.en
dc.identifier.issn1876-6102en
dc.identifier.doi10.1016/j.egypro.2017.03.840en
dc.identifier.urihttp://hdl.handle.net/10754/624041-
dc.description.abstractLifecycle CO2 emission of ethanol blended gasoline was simulated to investigate how fuel properties and composition affect overall emission. Fuel research octane number (RON), octane sensitivity and ethanol content (derived from sugarcane and corn) were varied in the simulations to formulate blended fuels that economically achieve target specifications. The well-to-pump (WTP) simulation results were then analyzed to understand the effects of fuel composition on emission. Elevated ethanol content displaces aromatics and olefins required in gasoline blendstock to reach a target fuel specification. The addition of greater sugarcane-based ethanol percentage in constant aromatics and olefins fuel reduces its WTP CO2 emission. Corn-based ethanol blending does not offer CO2 emission offset due to its high production emissions. The mixing of sugarcane-based with corn-based ethanol is shown to be a potentially effective method for achieving a blended fuel with a lower lifecycle CO2 emission. Besides CO2 emission, the total greenhouse gas (GHG) emission from land-use conversions (LUC), CH4, and N2O are also significant in determining the optimal fuel blend. Herein, we present preliminary results showing that total GHG emissions significantly increase when either corn or sugarcane ethanol is blended at even small percentages; detailed results will be addressed in future communications.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S1876610217309220en
dc.rightsThis is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectCorn-based ethanolen
dc.subjectlifecycle analysisen
dc.subjectethanol blended gasolineen
dc.subjectCO2 emissionen
dc.subjectwell-to-wheel emissionen
dc.titleOptimizing Blendstock Composition and Ethanol Feedstock to Reduce Gasoline Well-to-Pump CO 2 Emissionen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.identifier.journalEnergy Procediaen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionUniversity of Oxford, Chemical Engineering, Engineering Science, Oxford, OX1 3PJ, United Kingdomen
dc.contributor.institutionStrategic Transport Analysis Team, Fuel Technology R&D, Research & Development Center (R&DC), Saudi Aramco, Dhahran, 31311, Saudi Arabiaen
kaust.authorZhang, Boen
kaust.authorSarathy, Manien
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.