juben n. chheda

~bio~

-contact-
(608) 265 3784
jubenc@cae.wisc.edu

-research area-
Biorefining
Chemical Reaction Kinetics
Base Catalysis
Process Development

 -hometown-
Mumbai, India

-education-
B.E. in Chemical Engineering from D. J. Sanghvi College of Engineering, Mumbai, INDIA (May 1999)
M.S. in Chemical Engineering from Cleveland State University (May 2001)

 -publications-

Christopher J. Barrett, Juben N. Chheda, George W. Huber, and James A. Dumesic, "Single-Reactor Process for Sequential Aldol-Condensation and Hydrogenation of Biomass-Derived Compounds in Water", Applied Catalysis B: Environmental (In press)

George W. Huber, Juben N. Chheda, Christopher J. Barrett and James A. Dumesic, “Production of Liquid Alkanes by Aqueous Phase Processing of Biomass-Derived Carbohydrates”, Science 2005, 308, 1446

-presentations-
Huber, G. W.; Chheda, J.; Barrett, C. B.; and Dumesic, J. A.; “Renewable Liquid Alkanes from Aqueous-phase Biorefining of Oxygenated Hydrocarbons”, North American Catalysis Meeting, Philadelphia, PA (2005)

Huber, G. W.; Chheda, J.; Barrett, C. B.; and Dumesic, J. A.; “Production of Liquid Alkanes by Aqueous-Phase Processing of Biomass-Derived Carbohydrates”, American Institute of Chemical Engineers (AIChE) National Meeting, Austin, TX (2004)

Chheda Juben; Zhang H.; Shah D.B. (Speaker); Talu O; “Theories of Multicomponent Diffusion through Zeolites”, American Institute of Chemical Engineers (AIChE) National Meeting, Los Angeles, CA (2000)
 

~research summary~

Production of Liquid Alkanes by Aqueous Phase Processing from Biomass-Derived Carbohydrates

 Advisor: Dr. J. A. Dumesic, University of Wisconsin - Madison

Our research is focused on making fuels from biomass.  Now, we are optimizing the process.  Our team of Dr. Dumesic, George Huber, Chris Barrett, and myself have made impressive breakthroughs. 

-in collaboration with-
Chris Barrett, George Huber

Figure 1: Team picture for Science Publication: Prof. Dumesic (left), Chris Barrett, George Huber, Juben Chheda (Right)

Master’s Research:  

Modeling of Multicomponent Diffusion of Binary Mixtures through the Silicalite-1 Crystal using Generalized Stefan Maxwell (GMS) Theory

Advisor: Dr. D. B. Shah, Cleveland State University, Ohio

 Modeling of multicomponent diffusion in zeolites is an extremely difficult problem because of the need to account for both multicomponent equilibria and the variation of diffusivities of each component with adsorbed phase coverage. Models based on dust-gas approach, Fick's equation and Stefan-Maxwell equations have been used to describe such systems. A newer model of multicomponent diffusion using Generalized Stefan Maxwell (GMS) theory was developed that, in our view, is physically more realistic and is thermodynamically consistent. The model simulated the performance of several binary mixtures through silicalite-1 crystal. The model was validated with experimental data on diffusion of several binary systems through a single silicalite crystal.

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