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Venkatesan Venkata Krishnan

Senior Lecturer in Chemical Engineering

Venkatesan Venkata Krishnan

About Venkatesan Venkata Krishnan

Dr. Venkatesan Venkata Krishnan (Venkat) got his Ph.D. in Chemical Engineering from the University of Connecticut, in the US, in 1996, after obtaining his Bachelor’s degree in the same subject from Indian Institute of Technology, Delhi (IIT-D), INDIA, in 1988.  Subsequently he worked as Postdoctoral Fellow/ Associate at the Universities of Southern California and Pennsylvania, and at ExxonMobil Research and Engineering (New Jersey). 

Venkat left for India in 2004, working at IIT Delhi as Assistant Professor, followed by a stint as Principal Engineer at Bloom Energy India (subsidiary of Bloom Energy Corp, Sunnyvale, CA) in Mumbai, and at Non-Ferrous Materials Technology Development Centre in Hyderabad, before finally moving to Teesside University in February 2016.

Venkat’s experience has straddled the academic domain, industrial R & D and product development, in areas of Chemical Engineering viz., Catalysis and Reaction Engineering, in Solid State Electrochemistry (primarily Solid Oxide Fuel Cells), in Process Design and in Ceramics processing.

As a former academic at IIT Delhi (2004-10), he taught Chemical Process Technology (in essence, Chemical Process Principles), Process Engineering, Reaction Engineering, Petroleum Refinery Operations, Heterogeneous Catalysis, Fluid/ Fluid-Particle Mechanics /Heat Transfer Laboratory, and a course in building and installing experimental rigs, whose objectives were to get students involved in hands-on lab work as part of their engineering skill development. He also supervised the doctoral dissertation of 3 PhD students (one student in full, and two in part), with funded research in catalysis and fuel cells.

Research interests and activities

Venkat’s interests are broadly towards developing high efficiency energy conversion devices, and towards renewable hydrogen production. Within this framework, there are excellent opportunities for CO2 utilization and mitigation that he hopes to bring in, into his research projects. Some of his key areas are as follows -

1.  High Temperature Electrochemistry – towards Solid Oxide Fuel Cells (SOFCs) and Solid Oxide Electrolyzers (SOECs) –

a. Exploring degradation mechanisms for SOFCs operating on gasified feedstocks (effect of contaminants)

b. Understanding degradation in SOECs (steam and/or CO2), and enhancing stability 

c. High throughput Manufacturing, viz., Plasma Spray Techniques, for Metal Supported SOFCs/ SOECs (MSCs) – to enable lower cost of manufacturing with continued high level performance

2.  Heterogeneous Catalysis

a. Developing Catalytic Membrane Reactor Technologies for Hydrogen production

b. Enabling Internal Reformation at intermediate temperature SOFC operating conditions

c. Fundamental studies – effect of synthesis methods on catalyst performance, towards syngas and Hydrogen production (Steam Reforming, Water Gas Shift)

d. Transient and Perturbation Techniques – novel experimental designs and analysis, for studying catalytic performance in keymodel reactions

3.  Mathematical Modelling – Interpreting Electrochemical Impedance Spectroscopy Data on Fuel Cells and Batteries.

4.  Innovative use of Biomass towards energy/Hydrogen and chemicals production – process design based on emerging techniques like microwave-assisted gasification and combustion.

Learning and teaching interests

Venkat is currently teaching modules relating to Thermodynamics, Heat Transfer, Elements of Mass Transfer, and Particle Technology/ Mechanics. He also teaches students the basics of Chemical Engineering Practice, as taught in a laboratory module of the same name. His interests lie in developing and teaching elective modules in the area of Electrochemistry and Catalysis further on.

Enterprise interest and activities

Venkat has worked in the past with industry-led projects, such as – Decomposition of water using the sulfur-iodine cycle, with Oil and Natural Gas Commission (ONGC), in India, wherein his team at IIT Delhi setup a laboratory for investigating the decomposition of HI to I2 and H2, a key element of the 3-reaction scheme for water decomposition.  

Furthermore, with his work on product development in the industry (with ExxonMobil and Bloom Energy) he has a strong feel for industrial needs and is interested in working with industrial groups to enhance their productivity and effect key improvements in their processes and catalysts.

Over the past year, he has also been a co-founder and mentor for a Silicon Valley based company called Planet Hydrogen, whose interest is to convert biomass to hydrogen at high scales.

In Teesside, Venkat continues to interface with local SMEs like MPI, and Altech engineering, in a bid to help them move their businesses towards renewable energy and energy devices.

 

PATENTS

‘A method and apparatus for Manufacturing of solid oxide fuel cell’; – Krishnamurty Balasubramanian, Nirmal Panda, Venkatesan Venkata Krishnan, M. Govindaraju and Nitin Kanoongo; PCT Application filed on June 19th, 2014 [Number PCT/IB2014/001113)]; Full Filing for Indian Patent as well, completed, June 19th, 2014 [Indian Patent Application number 2660/CHE/2013]

‘Separation of Methanol, Ethanol and/or Dimethyl Ether from Hydrocarbon mixtures’, US Patent # 6,984,765 B2 (01/10/2005); Sebastian C. Reyes, Venkatesan V. Krishnan, Gregory J. DeMartin, John H. Sinfelt, Karl G. Strohmaier, Jose Guadalupe Santiesteban.

‘Separation of Propylene and Dimethylether from Hydrocarbon mixtures’, US Patent # 6,733,572 (05/11/2004); Sebastian C. Reyes, Venkatesan V. Krishnan, Gregory J. DeMartin, John H. Sinfelt, Karl G. Strohmaier, Jose Guadalupe Santiesteban.

‘Separation of Propylene from Hydrocarbon mixtures’, US Patent # 6,730,142 B2, (05/04/2004); Sebastian C. Reyes, Venkatesan V. Krishnan, Gregory J. DeMartin, John H. Sinfelt, Karl G. Strohmaier, Jose G. Santiesteban.

‘Method for making Bulk Catalyst’, US Patent # 6,143,688, (11/07/2000); Mark E. Thompson, Venkatesan V. Krishnan and Alexandre G. Dokoutchaev.

‘Method for Catalytic Production of Hydrogen Peroxide and Catalyst therefore’, US Patent # 5,976,486, (11/02/1999); Mark E. Thompson, Venkatesan V. Krishnan, Alexandre G. Dokoutchaev, Feras Abdel-Razzaq and Shannon C. Rice.

Publications

Singhania, A., Krishnan, VV., Bhaskarwar, A., Bhargava, B., Parvatalu, D. (2017) ‘Hydrogen-iodide decomposition over Pd-CeO2 nanocatalyst for hydrogen production in sulfur-iodine thermochemical cycle’. Int. J. Hydrogen Energy https://doi.org/10.1016/j.ijhydene.2017.07.088

Krishnan, VV. (2017) ‘Recent developments in metal-supported solid oxide fuel cells’. WIREs Energy Environ 2017, e246. doi: 10.1002/wene.246.

Singhania, A., Krishnan, VV., Bhaskarwar, A., Bhargava, B., Parvatalu, D., Banerjee, S. (2017) ‘Hydrogen production from the decomposition of hydrogen iodide over nano-sized nickel oxide-zirconia catalysts prepared by solution-combustion techniques’. Catalysis Communications 93, p5.

Singhania, A., Krishnan, VV., Bhaskarwar, A., Bhargava, B., Parvatalu, D., Banerjee., S. (2016) ‘Catalytic performance of bimetallic Ni-Pt nanoparticles supported on activated carbon, gamma-alumina, zirconia, and ceria for hydrogen production in sulfur-iodine thermochemical cycle’.  Int. J. Hydrogen Energy 41, p 10538

Tomov, RI., Krauz, M., Tluczek, A., Krishnan, VV., Balasubramanian, K., Kumar, RV., Glowacki, BA. (2015) ‘Vacuum-sintered stainless steel porous supports for inkjet printing of functional SOFC coatings’. Mater Renew Sustain Energy 4:14, p13

Rupa, PKP., Goli, VR., Balasubramanian, K., Tomov, RI., Kumar, VR., Glowacki, BA., and Krishnan, VV. (2015). ‘Development of Intermediate Temperature (550 - 650oC) Metal Supported Solid Oxide Fuel Cells (SOFCs) Using Plasma Processes’. ECS Transactions 68(1), p 2245

Tomov, RI., Fakeeh, A., Krishnan, VV., Balasubramanian, K., Kumar, RV., Glowacki, BA. (2015). ‘Direct ceramic inkjet printing and infiltration of functional coatings for metal supported SOFC’; ECS Transactions 68(1), p 2491

Rahul, SH,. Rupa, PKP., Panda, N., Balasubramanian, K., Kumar, RV., and Krishnan, VV. (2013). ‘Novel Co-Sintering Techniques for Fabricating Intermediate Temperature, Metal Supported Solid Oxide Fuel Cells (IT-m-SOFCs)’. ECS Transactions, 57(1) 857-866

Vuyyuru, KR., Pant, KK., Krishnan, VV., and Nigam, KDP. (2010) ‘Recovery of Nickel from Spent Industrial Catalysts using Chelating agents’. Ind. Eng. Chem. Res., 49, 2014-24

Singh, CA,. Bansal, L., Tiwari, P., and Krishnan, VV. (2009). ‘Strong Metal Support Interactions (SMSI) Of Infiltrated Ni With TiO2 In A Porous YSZ Anode Matrix – A Possible Method For Ni-stabilization’.  ECS Transactions 25(2), 1897-1904

Singh, CA., and Krishnan, VV. (2009) ‘Synthesis and Characterization of Ni-impregnated Porous YSZ anodes for SOFCs’; Advances in Solid Oxide Fuel Cells IV, 173 – 179, Copyright © 2009 The American Ceramic Society.

Singh, CA., and Krishnan, VV. (2008). ‘Anode Characterization and SOFC Performance using Ni-YSZ anodes formed by Ni-impregnation methods’. ECS Transactions 6 (21) 25-32

Sakthivel, S., Krishnan, VV., and Pitchumani, B. (2008) ‘Influence of suspension stability on wet grinding for production of mineral nanoparticles’. Particuology 6, 120-24

Garg, RK., Krishnan, VV., and Srivastava, VK. (2006) ‘Prediction of concentration and temperature profiles for non-isothermal ethane cracking in a pipe reactor’. Korean J. Chem. Eng., 23(4), 531-539

McIntosh, S., He, H., Lee, S., Costa-Nunes, O., Krishnan, VV., Vohs, JM., and Gorte, RJ. (2004). ‘An Examination of Carbonaceous Deposits in Direct Hydrocarbon Utilization SOFC Anodes’. J. Electrochem. Soc. 151(4), A604-A608

Krishnan, VV., McIntosh, S., Gorte, RJ., and Vohs, JM. (2004) ‘Measurement of Electrode Overpotentials for Direct Hydrocarbon Conversion Fuel Cells’. Solid State Ionics. 166 (1-2), 191-197

Krishnan, VV., Dokoutchaev, AG., and Thompson, ME. (2000) ‘Direct Production of Hydrogen Peroxide with Palladium Supported on Phosphate Viologen Phosphonate Catalysts’. J. Catal. 196 (2), 366-374

Dokoutchaev, A., Krishnan, VV., Thompson, ME., and Balasubramanian, M.  (1998) ‘Platinum and Palladium incorporation into Phosphate-Viologen-Phosphonates of Zirconium and Hafnium: Synthesis and Characterization’. J. Mol. Struc. 469, 191-205

Krishnan, VV., and Suib, SL. (1999) ‘Oxidative Dehydrogenation of 1-Butene over Manganese Oxide Octahedral Molecular Sieves’.  J.  Catal.  184, 305-315 (1999).

Tian, Z-R., Tong, W., Wang, J-Y., Duan, N-G., Krishnan, VV., and Suib, SS. (1997). ‘Manganese Oxide Mesoporous Structures: Mixed-Valent Semiconducting Catalysts’.  Science, Vol. 276

Krishnan, VV., Bennett, CO., and Suib, SL. (1997) ‘Mathematical Modeling of Transient Diffusion and Adsorption of Cyclopropane in NaX, Ni/NaX and Eu/NaX Zeolites’. Applied Catalysis ‘A’ Gen 151, 267-287

Krishnan, VV., Suib, SL., Corbin, DR., Schwarz, S., and Jones, GA. (1996). ‘Encapsulation Studies of Hydrogen on Cadmium Exchanged Zeolite Rho at Atmospheric Pressure’. Catal. Today, 31, 199-205

Krishnan, VV., Suib, SL., Corbin, DR., Schwarz, S., and Jones, GA. (1996) ‘Encapsulation of Hydrogen in Cadmium Exchanged Zeolite Rho; Temperature-Programmed Diffusion Studies’. Chemical Communications, No.3, 395-396

Occelli, ML., Naraghi, SM., Krishnan, V., and Suib, SL.  (1992) ‘The Effect of Tin and Antimony Addition on the Performance of Dual Function Cracking Catalyst (DFCC) Mixtures’ J.  Catal. 135, 325-331