1 modelling of biodiesel production marianne Øien supervisors: sigurd skogestad and chriss grimholt
DESCRIPTION
3 Project description Created a model for biodiesel production by plug flow reactor Validation of model Learn Simulink Renewable energy sourcesTRANSCRIPT
1
Modelling of Biodiesel Production
Marianne Øien Supervisors: Sigurd Skogestad and Chriss Grimholt
2
Agenda
• Project description• Work done• Model validation• Further work
3
Project description
• Created a model for biodiesel production by plug flow reactor
• Validation of model• Learn Simulink• Renewable energy sources
4
Flow scheme
5
Simulink model
• Ten CSTRs in series for plug flow reactor• Settling tank for buffer effect and separation• Distillation between biodiesel and methanol• Flash of methanol from glycerol
6
Operating condition
• Soyabean oil, assumed one component for simplicity
• 600C • 100% excess methanol• NaOH catalyst
7
Model validation
• Single units and system• Change in flowrate• Disturbance in feed composition and methanol
excess• New product requirements in purity
8
Reaction Chemistry
9
Reactor validation• Removal of
methanol in feed
• No conversion• Change
through reactors
10
Settling tank response• Increased
biodiesel fraction upstream
• Smooth out disturbance downstream
• Total flow conserved
11
System disturbance• Application of 10%
flow disturbance• Smooth output
disturbance• Excess methanol
reflected in vapour and liquid flow
12
Further work
• Include industrial size, amounts and data– Optimal flows for nominal operation– Tuning and control – Industrial expected disturbances
• Reducing computation time• More complex validation cases
13
• Questions?
Thank you for your attention!