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Continuous Manufacturing
Technology – A Changing Paradigm
Nagaarjun Sridhar
Process Engineer - API Research
Outline
• API Development
• Conventional Batch Process – In Brief
• Introduction to Continuous Process
• Process Engineering Aspects
• Regulatory Considerations
• Case studies of C.Mfg
• Future Milestones
API Process Development
Conventional Batch Process
• Batch process follows a step-by-step
method of production and completed in
‘lots’ or ‘batches’.
• It could be stopped and started according
to our needs. Installation and running
costs are affordable.
• Longer cycle time, periodic services
needed, increases skilled labors
• Quality issues is a concern for every new
batch
Introduction to C.Mfg
Definition:
Continuous production is a flow production method used to manufacture, produce,
or process materials without interruption.
Eg: Petroleum and allied industries
Principle of flow technology:
Flow rate of input = Flow rate of output
• Assures consistency in product quality
• Reduced/No major cycle time
• Necessity for skilled labor is not needed
• In-line PAT assessment
• Can reach the markets at the earliest
• Initial investment is high
• Reactor designs are highly product specific
Comparison (Batch vs C.Mfg)
Economic Analysis (Batch v/s C.Mfg)
Theory : Break Even Analysis – Its used to determine when your business will be able to cover
all the expenses and begin to make a profit.
Depends on Fixed Costs and Variable Costs.
Process Engineering Aspects
Type of Reactors
CSTR PFR Tubular Reactor
Tubular Reactors: 1. Packed Bed Reactor
2. Fixed Bed Reactor
3. Baffled reactor
4. Trickle Bed Reactor
Volume of reactor
Volumetric Flow Rate
Residence Time
Important Design Parameters
Reaction Technology = f(Mathematical models, Flow concepts, Basic kinetics, Design
knowledge, Thermodynamics & H.T) + f(Lab experiments, Pilot experiments)
Lab Scale Reactors Pilot Scale Reactors Full Scale Reactor
Scale up of PFR
Regulatory Considerations
“FDA urges pharmaceutical giants to transform from batch to continuous” – ETT,
14th April 2016
Strategic Collaborations by Major
Players
1. Novartis (Formulation Development using Continuous Mnf Tech) – MIT university (USA)
2. GSK – University of Strathclyde (UK)
3. Pfizer (Formulation Development) – GEA + Pfizer Global Engineering Team
4. AstraZeneca – University of Strathclyde (UK)
5. Bayer – University of Strathclyde (UK)
6. Eli Lilly Co – University of Strathclyde (UK)
7. J&J – University of Wisconsin, Madison (USA)
8. Takeda Pharmaceuticals – University of Strathclyde (UK)
9. Merck & Co – The Rutgers C-SOPS (USA)
10. Jansen – University of Puerto Rico
Case Study of Eli Lilly Co.
API : Evacetrapib (A cholesterol ester transfer protein inhibitor)
Steps 1 and 2a were
done by batch process.
Step 2b to final API , flow
technology was used
Reductive amination
under high pressure
1. 45 – 2 inch pipe in series connected using
0.25 inch jumpers
2. 316L SS MoC
3. Total Vol. of Reactor = 380L
4. Turndown Ratio is 3
5. Tube side pressure = 1200psig
6. Jacket side pressure =10psig
7. Temp rating (overall) 125 deg
Note:
1. Pipe inspection was possible
2. Built per PED (ASME)
Design considerations
Simultaneous Activities:
1. Reactor monitoring
2. On-line Analytical Data
Acquisition
3. Feed and Product Levels
Future Milestones
• To identify loopholes and limitations of Continuous technology (on-
going)
• Getting inputs collectively from BD/R&D team on products/synthesis
(yet to start)
• To initiate talks with University of Strathclyde(or any Indian public
universities) in order to get more clarity and support on developing it
strategically (yet to start)
• To design and evaluate feasibility of a lab or pilot scale reactor with the
help of an experienced process design firm (Technograph Pvt. Ltd)
• To identify a global premier engineering firm to establish full scale
production plant (To get help from Technograph)
Thank You
“Some goals are so worthy, its even
glorious to fail “

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Continuous manufacturing technology

  • 1. Continuous Manufacturing Technology – A Changing Paradigm Nagaarjun Sridhar Process Engineer - API Research
  • 2. Outline • API Development • Conventional Batch Process – In Brief • Introduction to Continuous Process • Process Engineering Aspects • Regulatory Considerations • Case studies of C.Mfg • Future Milestones
  • 4. Conventional Batch Process • Batch process follows a step-by-step method of production and completed in ‘lots’ or ‘batches’. • It could be stopped and started according to our needs. Installation and running costs are affordable. • Longer cycle time, periodic services needed, increases skilled labors • Quality issues is a concern for every new batch
  • 5. Introduction to C.Mfg Definition: Continuous production is a flow production method used to manufacture, produce, or process materials without interruption. Eg: Petroleum and allied industries Principle of flow technology: Flow rate of input = Flow rate of output • Assures consistency in product quality • Reduced/No major cycle time • Necessity for skilled labor is not needed • In-line PAT assessment • Can reach the markets at the earliest • Initial investment is high • Reactor designs are highly product specific
  • 7. Economic Analysis (Batch v/s C.Mfg) Theory : Break Even Analysis – Its used to determine when your business will be able to cover all the expenses and begin to make a profit. Depends on Fixed Costs and Variable Costs.
  • 8. Process Engineering Aspects Type of Reactors CSTR PFR Tubular Reactor Tubular Reactors: 1. Packed Bed Reactor 2. Fixed Bed Reactor 3. Baffled reactor 4. Trickle Bed Reactor Volume of reactor Volumetric Flow Rate Residence Time Important Design Parameters Reaction Technology = f(Mathematical models, Flow concepts, Basic kinetics, Design knowledge, Thermodynamics & H.T) + f(Lab experiments, Pilot experiments)
  • 9. Lab Scale Reactors Pilot Scale Reactors Full Scale Reactor Scale up of PFR
  • 10. Regulatory Considerations “FDA urges pharmaceutical giants to transform from batch to continuous” – ETT, 14th April 2016
  • 11. Strategic Collaborations by Major Players 1. Novartis (Formulation Development using Continuous Mnf Tech) – MIT university (USA) 2. GSK – University of Strathclyde (UK) 3. Pfizer (Formulation Development) – GEA + Pfizer Global Engineering Team 4. AstraZeneca – University of Strathclyde (UK) 5. Bayer – University of Strathclyde (UK) 6. Eli Lilly Co – University of Strathclyde (UK) 7. J&J – University of Wisconsin, Madison (USA) 8. Takeda Pharmaceuticals – University of Strathclyde (UK) 9. Merck & Co – The Rutgers C-SOPS (USA) 10. Jansen – University of Puerto Rico
  • 12. Case Study of Eli Lilly Co. API : Evacetrapib (A cholesterol ester transfer protein inhibitor) Steps 1 and 2a were done by batch process. Step 2b to final API , flow technology was used Reductive amination under high pressure
  • 13. 1. 45 – 2 inch pipe in series connected using 0.25 inch jumpers 2. 316L SS MoC 3. Total Vol. of Reactor = 380L 4. Turndown Ratio is 3 5. Tube side pressure = 1200psig 6. Jacket side pressure =10psig 7. Temp rating (overall) 125 deg Note: 1. Pipe inspection was possible 2. Built per PED (ASME) Design considerations Simultaneous Activities: 1. Reactor monitoring 2. On-line Analytical Data Acquisition 3. Feed and Product Levels
  • 14. Future Milestones • To identify loopholes and limitations of Continuous technology (on- going) • Getting inputs collectively from BD/R&D team on products/synthesis (yet to start) • To initiate talks with University of Strathclyde(or any Indian public universities) in order to get more clarity and support on developing it strategically (yet to start) • To design and evaluate feasibility of a lab or pilot scale reactor with the help of an experienced process design firm (Technograph Pvt. Ltd) • To identify a global premier engineering firm to establish full scale production plant (To get help from Technograph)
  • 15. Thank You “Some goals are so worthy, its even glorious to fail “