Session III: Scale-Up Issues: Examples and Effective Solutions

Wednesday, June 6, 2012, 2:30pm-4:00pm EDT

Session Co-Chairs

  • Robert Lin, Eastman Chemical Co.
  • Shaibal Roy, DuPont

Schedule

Presentation Speaker
Use of Piloting to Reduce Scale-Up Risk David Berg
Design and Scale Up of Fully Continuous Processes including Reaction, Workup, and Isolation Martin Johnson
The Search for the Piloting and Scale-Up Vision of the Future Brad Duckworth


Use of Piloting to Reduce Scale-Up Risk

David Berg, DuPont

The scale-up and commercialization of new process technology inherently involves a broad range of business, market, and technology risks that must all be managed in order to be successful.  Companies with a successful track record in scale-up typically have well established processes for risk identification, risk assessment and prioritization, and development and execution of risk mitigation plans.  Piloting is a commonly used strategy for reducing the risk of failure at larger scale due to operational issues (fouling, plugging, corrosion, etc.), recycle problems (build-up of impurities), and process capability issues (low yield and capacity, poor product quality, etc.).

This paper will share learnings from several previous DuPont projects and discuss best practices that have been adopted over the years to effectively manage scale-up risk.  Topics that will be discussed include: risk management and contingency planning, deciding what elements of the process to pilot and why, deciding what scale to pilot at, and technology transfer from pilot to commercial operations.

 

Design and Scale Up of Fully Continuous Processes including Reaction, Workup, and Isolation

Martin Johnson, Eli Lilly and Company

Several fully continuous processes have been run in Chemical Product Research and Development at Eli Lilly to enable scale up of chemistries that are not suitable for conventional batch equipment. Superheated thermal cyclization, high pressure hydroformylation (70 bar), high pressure asymmetric hydrogenation (70 bar), which were not feasible to scale up in existing in-house batch equipment, have been conducted safely in continuous reactors. Multi-stage counter-current extractive workup enabled higher product yield and better impurity rejection compared to batch.  Continuous crystallization enabled higher ee upgrade compared to batch, seeding only once at the beginning of the campaign, and the quality assurance of steady state operation.

Continuous distillation enabled difficult solvent exchanges with less solvent waste and less residence time in the evaporator compared to batch, and efficient separation of compounds with small relative volatility.  Typical research scale throughputs are 1 to 10 g/h and pilot scale throughputs are 5 to 15 kg/day. Most continuous processes that were run at research and pilot scale in the development laboratories have solids in flow.  Custom methods and devices for slurry mass transport are described.  No mechanical pumps are used for slurry flow. Instead, automated sequenced block valves and pressure swing fluid transfer chambers are used for pumping and flow metering of slurries. 

 

The Search for the Piloting and Scale-Up Vision of the Future

Brad Duckworth, Eastman

As companies around the globe strive for growth, manufacturing industries have a renewed focus on growth strategies and the chemical industry is no exception. A major factor in the success or failure of a company’s growth strategy is how effectively they implement new technologies. As concepts for new technologies are conceived, it becomes increasingly more important to scale-up these concepts from the idea phase to a profitable manufacturing facility in the most efficient and cost effective means possible.

Eastman Chemical Company decided to take a critical look at their piloting and scale-up methodology and benchmark others in the industry and use this information to develop a new piloting and scale-up vision that would enable Eastman’s growth strategies to become reality. This presentation will cover the approach used to develop Eastman’s new piloting and scale-up vision as well as the concepts behind the vision.

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Dr. David Berg

David joined DuPont in November 1986 at the Research and Development Centre in Kingston, Ontario. He has progressed through a series of different roles over the past 19 years and is currently Technology Group Leader – Process Development with responsibility for leading a diverse portfolio of projects including development and licensing of Versipol® catalyst technology, and development of a new family of biobased polymers.

David is also an Adjunct Assistant Professor at Queen’s University in the Department of Chemical Engineering since 1997 and was Treasurer of the Canadian Society...

Dr. Martin D. Johnson

Martin D. Johnson works for Eli Lilly and Company in Chemical Product Research and Development.  Prior to joining Eli Lilly in 2005, he worked as a process research engineer at Union Carbide and The Dow Chemical Company in the Engineering Sciences and Market Development department.

At Eli Lilly, Dr. Johnson leads a group of engineers who focus on design and development of continuous processes.  He has applied process technologies from the chemical industry to increase efficiency, decrease waste, and increase the types of chemistries that Eli Lilly can safely scale up from research...

Mr. Brad Duckworth

Brad Duckworth is a Technology Group Leader at Eastman Chemical Company in Tennessee. He has been with Eastman since 1992 where he has been in various positions in both Eastman’s Longview, Texas, and Kingsport, Tennessee sites. His experiences include not only pilot plant scale-up, technology licensing, technical service, process improvement, process development, but also business management. Brad is currently leading a team at Eastman to develop a vision for an optimized way to do piloting and scale-up of new technologies.

Brad obtained a B.S. degree in Chemical Engineering from...