Relax

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Team 11
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Team 11 Joshua Harbert, Christian Ocier, Mitch
Kenyon, Fred Thielke, Adebo Alao
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• Outline
• Project
• Obstacles/Decisions
• Analyses
• Questions

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Project

• Our Purpose
• Design Norms
• Chemistry
• Preliminary Design

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Project Purpose
Our purpose is to design and construct a reactor
that converts Waste Vegetable Oil (WVO) into
biodiesel.
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Project Design Norms

• Stewardship
• Cultural Appropriateness
• Humility

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Project Chemistry
Where do we get our feedstock WVO?
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Project Chemistry
Primary components in WVO
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Project Chemistry
Desired Reaction Trans-esterification of
Triglycerides
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Project Chemistry
FFA pretreatment Esterification reaction
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Project Design

• The overall design will consist of three main
  stages
• Filtration
• The Reactions
• Washing

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Obstacles and Decisions

• The three main areas
• Filtration System
• Washing System
• The Reactor

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Filtration Obstacles

• Challenges With the WVO
• Fine Particulates
• Animal Fat and Lard Semi-Solids
• High Viscosity

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Filtration Decisions

• Options
• Gravity Filtration
• Vacuum Filtration
• Both Gravity and Vacuum Filtration
• Lab Findings
• Preheating the WVO Eases Filtration
• Even With Heating Gravity Filtration is Slow
• Both Coffee and Chemistry Filter Paper Works
• Minimum Optimum WVO Temp 60C

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Washing Obstacles

• Challenges in Washing
• Impurities
• Emulsification

Biodiesel-Water Emulsion
Biodiesel-Water Separation
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Washing Decisions

• Washing Options
• Bubble Washing
• Mist Washing
• Agitated Washing
• Use of an Adsorbent

• Decision
• Combination of Agitated Washing and Adsorbent

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Reactor Obstacles

• Challenges
• Multiple or Single Vessel
• Material
• Stainless Steel
• Coated Carbon Steel
• Polymer
• Shape

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General Reactor Decision
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Chemical Property Analysis

• Goal of Vacuum Distillation
• Remove Water That Doesnt Separate
• Save Time Energy
• Lower Distillation Temperatures
• Vacuum Distillation Challenges
• Non-ideal Two and Three Phase Systems
• Very Little Data Available
• Approach
• UNIFAC Modeling
• Experimentation

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Chemical Property Analysis

• UNIFAC Model
• UNIversal Functional group Activity Coefficients
• Assumptions of WVO
• Composition and Structure
• Behaves Like Pure Soy Bean Oil
• Experimentation
• Find Bubble Point Pressures at Ideal System
  Temperatures

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Experimental Set-up
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Experimental Set-up
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Results
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Questions?