Exploration of process parameters for continuous hydrolysis of canola oil, camelina oil and algal oil

Handle URI:
http://hdl.handle.net/10754/562231
Title:
Exploration of process parameters for continuous hydrolysis of canola oil, camelina oil and algal oil
Authors:
Wang, Weicheng; Turner, Timothy L.; Stikeleather, Larry F.; Roberts, William L. ( 0000-0003-1999-2831 )
Abstract:
Thermal hydrolysis of triglycerides to form free fatty acid (FFA) is a well-established industry practice. Recently, this process has been employed as a first step in the production of biofuels from lipids. To that end, batch and continuous hydrolysis of various feedstocks has been examined at the laboratory scale. Canola, the primary feedstock in this paper, camelina and algal oils were converted to high quality FFA. For the different reaction temperatures, the continuous hydrolysis system was found to provide better yields than the laboratory batch system. In addition, CFD simulation with ANSYS-CFX was used to model the performance and reactant/product separation in the continuous, counter-flow reactor. The effects of reaction temperature, water-to-oil ratio (ratio of water and oil volumetric inflow rate), and preheating of the reactants were examined experimentally. Optimization of these parameters has resulted in an improved, continuous process with high mass yields (89-93%, for reactor temperature of 260°C and water-to-oil ratio of 4:1) and energy efficiency (76%, for reactor temperature of 250°C and water-to-oil ratio of 2:1). Based on the product quality and energy efficiency considerations, the reactor temperature of 260°C and water-to-oil ratio of 4:1 have provided the optimal condition for the lab scale continuous hydrolysis reaction. © 2012 Elsevier B.V.
KAUST Department:
Clean Combustion Research Center; Mechanical Engineering Program; Physical Sciences and Engineering (PSE) Division
Publisher:
Elsevier
Journal:
Chemical Engineering and Processing: Process Intensification
Issue Date:
Jul-2012
DOI:
10.1016/j.cep.2012.04.001
Type:
Article
ISSN:
02552701
Sponsors:
This material is based upon work supported by the National Science Foundation under Grant No. 0937721. The authors also express their gratitude to Mr. Phil Harris for his technical assistance, to Dr. Lisa Dean for her lipid analysis and to Dr. Fei Zheng for his helpful suggestions regarding ANSYS-CFX.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorWang, Weichengen
dc.contributor.authorTurner, Timothy L.en
dc.contributor.authorStikeleather, Larry F.en
dc.contributor.authorRoberts, William L.en
dc.date.accessioned2015-08-03T09:57:18Zen
dc.date.available2015-08-03T09:57:18Zen
dc.date.issued2012-07en
dc.identifier.issn02552701en
dc.identifier.doi10.1016/j.cep.2012.04.001en
dc.identifier.urihttp://hdl.handle.net/10754/562231en
dc.description.abstractThermal hydrolysis of triglycerides to form free fatty acid (FFA) is a well-established industry practice. Recently, this process has been employed as a first step in the production of biofuels from lipids. To that end, batch and continuous hydrolysis of various feedstocks has been examined at the laboratory scale. Canola, the primary feedstock in this paper, camelina and algal oils were converted to high quality FFA. For the different reaction temperatures, the continuous hydrolysis system was found to provide better yields than the laboratory batch system. In addition, CFD simulation with ANSYS-CFX was used to model the performance and reactant/product separation in the continuous, counter-flow reactor. The effects of reaction temperature, water-to-oil ratio (ratio of water and oil volumetric inflow rate), and preheating of the reactants were examined experimentally. Optimization of these parameters has resulted in an improved, continuous process with high mass yields (89-93%, for reactor temperature of 260°C and water-to-oil ratio of 4:1) and energy efficiency (76%, for reactor temperature of 250°C and water-to-oil ratio of 2:1). Based on the product quality and energy efficiency considerations, the reactor temperature of 260°C and water-to-oil ratio of 4:1 have provided the optimal condition for the lab scale continuous hydrolysis reaction. © 2012 Elsevier B.V.en
dc.description.sponsorshipThis material is based upon work supported by the National Science Foundation under Grant No. 0937721. The authors also express their gratitude to Mr. Phil Harris for his technical assistance, to Dr. Lisa Dean for her lipid analysis and to Dr. Fei Zheng for his helpful suggestions regarding ANSYS-CFX.en
dc.publisherElsevieren
dc.subjectContinuous hydrolysisen
dc.subjectFree fatty aciden
dc.titleExploration of process parameters for continuous hydrolysis of canola oil, camelina oil and algal oilen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalChemical Engineering and Processing: Process Intensificationen
dc.contributor.institutionDepartment of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC, United Statesen
dc.contributor.institutionPermafuels Inc., Carrboro, NC, United Statesen
dc.contributor.institutionDepartment of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, United Statesen
kaust.authorRoberts, William L.en
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