1. Introduction to BenzIntroduction to Benz
Technology International,Technology International,
Inc.Inc.
Gregory T. Benz, PresidentGregory T. Benz, President

2. What Is Benz TechnologyWhat Is Benz Technology
International Inc.?International Inc.?
 Incorporated in 2002Incorporated in 2002
 Small consulting engineering firmSmall consulting engineering firm
 Specializes in mixing, bioreactorSpecializes in mixing, bioreactor
design issuesdesign issues
 Experience in grain processing,Experience in grain processing,
fermentation, biofuels, polymers andfermentation, biofuels, polymers and
all other fluid processing areasall other fluid processing areas
 Works internationallyWorks internationally

3. What services are available?What services are available?
 Equipment specifications,Equipment specifications,
especially mixingespecially mixing
 Expert vendor evaluation,Expert vendor evaluation,
especially mixingespecially mixing
 Multistage reactor designMultistage reactor design
 Polymer reactor agitator designPolymer reactor agitator design
 Sourcing of reliable processSourcing of reliable process
equipment in developingequipment in developing
countriescountries

4. Services, continuedServices, continued
 Bioreactor Agitator DesignBioreactor Agitator Design
 Fermenter mass transferFermenter mass transfer
calculationscalculations
 Bioreactor Heat TransferBioreactor Heat Transfer
calculationscalculations
 Fermenter agitator design, scale-Fermenter agitator design, scale-
upup

5. Services, continuedServices, continued
 Fermenter energy optimizationFermenter energy optimization
 Fermenter pilot plantFermenter pilot plant
experimental protocolexperimental protocol
 Chemical/Bioreactor designChemical/Bioreactor design
 Agitation Courses/Seminars withAgitation Courses/Seminars with
PDHs or CEUsPDHs or CEUs

6. Additional ServicesAdditional Services
 Networking with other professionalsNetworking with other professionals
 Leadership development andLeadership development and
organizational functional design viaorganizational functional design via
Illuminov (Kim D. Benz, KarenIlluminov (Kim D. Benz, Karen
Kreutz)Kreutz)
 Product Research via Kim BenzProduct Research via Kim Benz
 Unlocking tacit knowledge byUnlocking tacit knowledge by
IlluminovIlluminov
 Networking in ChinaNetworking in China

7. What are the qualifications of Mr.What are the qualifications of Mr.
Benz?Benz?
 BSChE at University of Cincinnati,BSChE at University of Cincinnati,
19761976
 25 years experience at Chemineer,25 years experience at Chemineer,
Inc, through 2001Inc, through 2001
 Continuing Education course inContinuing Education course in
Fermentation BiotechnologyFermentation Biotechnology
 International experience in USA,International experience in USA,
Canada, Mexico, Korea, China,Canada, Mexico, Korea, China,
France, England and BelgiumFrance, England and Belgium

8. Who are some of Benztech’sWho are some of Benztech’s
Customers?Customers?
Abengoa Bioenergy
Advance Bio LLC
A.E. Staley Manufacturing co.
Affiliated Engineers
Alflow Scandinavia
Alpharma
Altra Biofuels
AMG
Archer Daniels Midland
Biofuel Energy Corp.
Carbon Renew Energy LLC
Cargill, Inc.
Chesapeake Agro-Iron LLC
CHR Hansen
Degussa
Ergon
ICM
Iogen
Merck, Inc.
Midwest Lysine
Mixtech, Inc.
NatureWorks LLC
PGLA-1
Power & Mine Supply
Rebus Corporation
Renmatix
Rocky Mountain Institute
Scientific Protein Labs
Stepan Company
Sweetwater Energy
University of Minnesota
Utility Engineering Corporation
Zibo Cargill Huanghelong
And others…

9. What are some project examples?What are some project examples?
 Defined pilot plant protocol to maximizeDefined pilot plant protocol to maximize
data usefulness for agitation scale-up,data usefulness for agitation scale-up,
and interpreted/scaled up the resultsand interpreted/scaled up the results
 Coordinated technology transfer forCoordinated technology transfer for
agitator manufacture in Chinaagitator manufacture in China
 Wrote detailed process and mechanicalWrote detailed process and mechanical
specifications for an agitation system forspecifications for an agitation system for
viscous gum fermentationviscous gum fermentation
 Evaluated the feasibility of newEvaluated the feasibility of new
processes using existing mixingprocesses using existing mixing
equipmentequipment

10. More Project ExamplesMore Project Examples
 Process troubleshootingProcess troubleshooting
 Mechanical troubleshootingMechanical troubleshooting
 Mixer application engineering forMixer application engineering for
various applications, such asvarious applications, such as
ethanol production and flue gasethanol production and flue gas
desulfurizationdesulfurization
 Design of agitation systems forDesign of agitation systems for
various aerobic fermentationsvarious aerobic fermentations

11. More Project ExamplesMore Project Examples
 Calculation of power and massCalculation of power and mass
transfer profiles during fed batchtransfer profiles during fed batch
fermentationsfermentations
 Mixer market researchMixer market research
 Mixer product developmentMixer product development
 Evaluation of new agitator impellerEvaluation of new agitator impeller
technology for potential equipmenttechnology for potential equipment
retrofitsretrofits

12. Some Articles by Mr. BenzSome Articles by Mr. Benz
 ““Design and Scale-up of Agitators for Gas Dispersion inDesign and Scale-up of Agitators for Gas Dispersion in
Fermentors”, R. Rautzen, G. Benz and D. Dickey, presented atFermentors”, R. Rautzen, G. Benz and D. Dickey, presented at
Engineering Foundation Conference on Mass Transfer and Scale-Engineering Foundation Conference on Mass Transfer and Scale-
up of Fermentors, New England College, Henniker, NH, Julyup of Fermentors, New England College, Henniker, NH, July
19771977
 ““Improved Starch Reactor Design”, G. Benz, Proceedings ofImproved Starch Reactor Design”, G. Benz, Proceedings of
1990 Scientific Conference, Corn Refiners Association,1990 Scientific Conference, Corn Refiners Association,
Indianapolis IN, September 1990, pp121-136Indianapolis IN, September 1990, pp121-136
 ““Computational Fluid Mixing for Corn Wet Milling Applications”,Computational Fluid Mixing for Corn Wet Milling Applications”,
G. Benz and A. Bakker, Proceedings of 1994 ScientificG. Benz and A. Bakker, Proceedings of 1994 Scientific
Conference, Corn refiners Association, Oakbrook, IL, SeptemberConference, Corn refiners Association, Oakbrook, IL, September
1994, pp 185-1921994, pp 185-192
 ““Mixing in Industrial Fermenters”, A. Bakker, G. Benz,Mixing in Industrial Fermenters”, A. Bakker, G. Benz,
presented at Biotechnology Conference, Sydney, Australia,presented at Biotechnology Conference, Sydney, Australia,
19961996
 ““A Comparative Study of Alternative Gas Dispersion Impellers”,A Comparative Study of Alternative Gas Dispersion Impellers”,
K. Myers, A. Thomas, A. Bakker and G. Benz, presented at Gas-K. Myers, A. Thomas, A. Bakker and G. Benz, presented at Gas-
Liquid Systems Session. Mixing XVI, Williamsburg, VA JuneLiquid Systems Session. Mixing XVI, Williamsburg, VA June
19971997

13. Some More ArticlesSome More Articles
 ““ Proper Impeller Systems Insure Mixing Performance”, M.Proper Impeller Systems Insure Mixing Performance”, M.
Reeder, G. Benz, Chemical Processing Magazine, July 1997, ppReeder, G. Benz, Chemical Processing Magazine, July 1997, pp
63-6463-64
 ““Enhancement of Fermentation with Effective ImpellerEnhancement of Fermentation with Effective Impeller
Systems”, G. Benz, Proceedings of 2001 InternationalSystems”, G. Benz, Proceedings of 2001 International
Symposium “New Horizons in Microbiology and Biotechnology”,Symposium “New Horizons in Microbiology and Biotechnology”,
Seoul Korea, June 2001, pp 153-154Seoul Korea, June 2001, pp 153-154
 ““Optimize Power Consumption in Aerobic Fermenters”, G. Benz,Optimize Power Consumption in Aerobic Fermenters”, G. Benz,
Chemical Engineering Progress, May 2003, pp 100-103Chemical Engineering Progress, May 2003, pp 100-103
 ““Impeller Selection for Agitated Aerobic Fermenters”, G. Benz,Impeller Selection for Agitated Aerobic Fermenters”, G. Benz,
Chemical Engineering Progress, February 2004, pp18S-24SChemical Engineering Progress, February 2004, pp18S-24S
 ““Team Up with a Consultant for Equipment Selection”, G. Benz,Team Up with a Consultant for Equipment Selection”, G. Benz,
Chemical Engineering Progress, August 2006, pp 50-51Chemical Engineering Progress, August 2006, pp 50-51
 ““The G-Value for Agitator Design: Time to Retire It?, G. Benz,The G-Value for Agitator Design: Time to Retire It?, G. Benz,
Chemical Engineering Progress, March 2007, pp 43-47Chemical Engineering Progress, March 2007, pp 43-47
 ““Selecting Agitator Seals for Bioprocessing Applications”, G.Selecting Agitator Seals for Bioprocessing Applications”, G.
Benz, W. H.L. Teng, Chemical Engineering Progress, JanuaryBenz, W. H.L. Teng, Chemical Engineering Progress, January
2008, pp 44-522008, pp 44-52
 ““Piloting Bioreactors for Agitation Scale-Up”, G. Benz, ChemicalPiloting Bioreactors for Agitation Scale-Up”, G. Benz, Chemical
Engineering Progress, February 2008, pp32-34Engineering Progress, February 2008, pp32-34
 ““Agitation Challenges in Cellulosic Ethanol Production”, EthanolAgitation Challenges in Cellulosic Ethanol Production”, Ethanol

14. More articles againMore articles again
 “Sourcing Equipment in Developing Countries while Minimizing Risk”, Ethanol Producer Magazine,
August, 2009.
 “Determine the Optimum Number of Process Trains”, G. Benz, Chemical Engineering Progress,
January 2010, pp 50-51
 “Agitation of Fibrous Materials”, G. Benz, Chemical Engineering Progress, June, 2010, pp 28-32
 “Reduce Risk When Sourcing Abroad”, G. Benz and L. Du, Chemical Engineering Progress, October
2010, pp 32-36
 “Bioreactor Design for Chemical Engineers”, G. Benz, Chemical Engineering Progress, August,
2011, pp21-26
 “Determining Torque Split for Multiple Impellers in Slurry Mixing”, G. Benz, Chemical Engineering
Progress, February, 2012, pp 45-48
 “Cut Agitator Power Costs”, G. Benz, Chemical Engineering Progress, November 2012, pp 40-43
 “Why Conduct Pilot Studies for Agitated Gas-Liquid Mass Transfer?”, G. Benz, Pharmaceutical
Engineering, January/February 2013, Vol. 33 no. 1, pp1-3
 “Designing Multistage Agitated Reactors”, G. Benz, Chemical Engineering Progress, January 2014,
pp 30-36
 “Pumps vs. agitators for tank mixing, classic case of CAPEX vs OPEX: white paper”, G. Benz,
Biofuels Digest magazine (Online), May 4, 2014
 “Computing Dissolved Oxygen Profiles in Aerobic Fermenters”, G. Benz, A. Kulkarni, G. Kasat & D.
Vedapuri, NAMF Presentation, June 2014
 “Large Scale Microbial Production of Advanced Biofuels: How big can we go?”, G. Benz, Biofuels
Digest, online publication, December 2014
 “Optimizing Aerobic Fermenter Operation”, G. Benz, Chemical Engineering Progress, March 2016,
pp.60-62

15. International ExperienceInternational Experience
 USAUSA
 MexicoMexico
 CanadaCanada
 EnglandEngland
 FranceFrance
 BelgiumBelgium
 ChinaChina
 S. KoreaS. Korea

16. Why Use Benztech Instead ofWhy Use Benztech Instead of
Mixer Suppliers?Mixer Suppliers?
 Mixer suppliers engineer’s goal is to sellMixer suppliers engineer’s goal is to sell
agitators. Benztech’s goal is to solveagitators. Benztech’s goal is to solve
mixing problemsmixing problems
 Impartiality; not tied to any vendorImpartiality; not tied to any vendor
 Experience levelExperience level
 ““Unlimited” time availableUnlimited” time available
 Generally much faster responseGenerally much faster response
 Saves money on bids when all vendorsSaves money on bids when all vendors
must compete on an equivalent basismust compete on an equivalent basis

17. Some Benztech PixSome Benztech Pix
Form Left To Right: Greg Benz in China; LabForm Left To Right: Greg Benz in China; Lab
Simulation; Computer Simulation; GregSimulation; Computer Simulation; Greg
Benz in WisconsinBenz in Wisconsin

18. ConclusionsConclusions
 Benztech can analyze mixing performanceBenztech can analyze mixing performance
to assure optimum design and economy ofto assure optimum design and economy of
operationoperation
 Benztech can get all qualified vendors onBenztech can get all qualified vendors on
an equal basis for the most competitivean equal basis for the most competitive
quotationsquotations
 Benztech can save you time and moneyBenztech can save you time and money
where mixing is involvedwhere mixing is involved
 Benztech can help you source equipmentBenztech can help you source equipment
in developing countries without the fearin developing countries without the fear