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  • Preparation method of slurry phase organic-inorganic fused hybrid catalysts use for residue hydroprocessing. Ravindra Prajapati, Kirtika Kohli, Samir Kumar Maity, Madhukar O Garg.     US 2016/0288101 A1.

  • Waste plastic as a hydrogen donating hydrocarbon in residue upgradation. Kirtika Kohli, Ravindra Prajapati, Samir Kumar Maity, Madhukar O Garg. (Application No. 0239NF2016).   

  • Catalizador para la hidrodesulfuración de residuos y crudos pesados. Patricia Rayo Mayoral, Jorge Ancheyta Juárez, Jorge Ramírez Solís. Samir Kumar Maity, Mohan Singh, Fernando Alonso Martínez. Mexican Patent No. MX/E/2005/066614.

  • Catalizador para la primera etapa de hidrodesmetalización en un sistema de hidroprocesamiento con reactores múltiples para el mejoramiento de crudos pesados y extra pesados. Mohan Singh, Jorge Ancheyta Juárez, Patricia Rayo Mayoral, Samir Kumar Maity. MX/a/2007/009504.

  • Catalizador con acidez moderada para hidroprocesamiento de crudo pesado y residuo y su procedimiento de síntesis. Mohan Singh, Jorge Ancheyta Juárez, Zenaida Carolina Leyva Inzunza, Samir Kumar Maity. MX/a/2008/006050.

  • Catalizador soportado en carbón para la desmetalización de crudos pesados y residuos. Samir Kumar Maity, Jorge Ancheyta Juárez, Fernando Alonso Martínez, Hidetsugu Fukuyama, Satoshi Terai, Masayuki Uchida. MX/a/2009/002359.

  • Catalyst for the hydrodesulfurization of Residua and Heavy Crudes. Patricia Rayo Mayoral, Jorge Ancheyta Juárez, Mohan Singh, Jorge Ramírez Solís, Samir Kumar Maity, Fernando Alonso Martínez. US 2011/0218097A1.

  • Catalyst for the first hydrodemetalization step in a hydroprocessing system with multiple reactors for the improvement of heavy and extra heavy crudes. Mohan Singh, Jorge Ancheyta Juárez, Patricia Rayo Mayoral, Samir Kumar Maity. US20100304963 A1.

  • Mild acidic catalyst for hydroprocessing of heavy crude oil and residue and its synthesis procedure. Mohan Singh, Jorge Ancheyta Juárez, Zenaida Carolina Leyva Inzunza, Samir Kumar Maity. US9387466 B2.

  • Carbon supported catalysts for demetalation of heavy crude oil and residue. Samir Kumar Maity, Jorge Ancheyta Juárez, Fernando Alonso Martínez, Hidetsugu Fukuyama, Satoshi Terai, Masayuki Uchida. US 20100224535 A1.

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Publications

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  • Coking propensity during hydroprocessing of vacuum residues, deasphalted oils and asphaltenes. R. Prajapati, K. Kohli, S.K. Maity, M.O. Garg. Fuel 2017, 203, 514-521.

  • Slurry-phase hydrocracking of residue with ultradispersed MoS2 catalysts prepared by microemulsion methods. R. Prajapati, K. Kohli, S.K. Maity. Energy & Fuels 2017, 31, 3905-3912.

  • Evaluation of residue hydrotreating catalysts supported on mesoporous aluminas. K. Kohli, R. Prajapati, S.K. Maity, M. Sau, M.O. Garg. Current Catalysis 2017, 3, 1-9.

  • Deactivation of hydrotreating catalyst by metals in resin and asphaltene parts of heavy oil and residues. K. Kohli, R. Prajapati, S.K. Maity, M. Sau, M.O. Garg. Fuel 2016, 175, 264-273.

  • Slurry phase hydrocracking of residue by phosphomolybdic and phosphotungstic acids. R. Prajapati, K. Kohli, S.K. Maity, M.O. Garg.  J Pet Environ Biotechnol 2016, 7, 281.

  • Hydrocracking of vacuum residue by slurry phase catalysts. R. Prajapati, K. Kohli, S.K. Maity, M.O. Garg. Procedia;19th Refinery Technology Meet (RTM).

  • Characterization of asphaltenic material obtained by treating of vacuum residue with different reactive molecules. S.K. Maity, S. Kumar, M. Srivastava, A.S. Kharola, K.K. Maurya, S. Konathala, A.K. Chatterjee, M.O. Garg. Fuel 2015, 149, 8–14.

  • Mesoporous alumina supported NiMo catalysts for residue conversion. K. Kohli, R. Prajapati, M. Sau, S.K. Maity. Procedia Earth & Planetary Science 2015, 11C, 325-331.

  • Effect of superacid and heteropolyacid on residue hydrorocessing. R. Prajapati, K. Kohli, S.K. Maity. Procedia Earth & Planetary Science 2015, 11C, 332-336.

  • Colloidal stability tests on vacuum residue hydrocracked products obtained at increasing severity. K. Kohli, R. Prajapati, N. Singh, S.K. Maity. International Journal of Oil, Gas and Coal Technology.[in press]

  • Hydrodesulfurization activity of used hydrotreating catalysts. S.K. Maity, J. Ancheyta, F. Alonso, P. Rayo.  Fuel Processing Technology 2013, 106, 453-459.

  • Hydrodesulfurization and hydrocracking of Maya crude with P-modified NiMo/Al2O3 catalysts. P. Rayo, J. Ramirez, P. Torres-Mancera, G. Marroquín, S.K. Maity, J. Ancheyta. Fuel, 2012, 100, 34-42.

  • Early stage deactivation of hydroprocessing catalysts used for Maya heavy crude. S.K. Maity, E. Blanco, J. Ancheyta, F. Alonso. Fuel, 2011, 100, 17-23.

  • Effect of preparation methods and content of Boron on hydrotreating catalytic activity. S.K. Maity, M. Lemus, J. Ancheyta. Energy & Fuels 2011, 25, 3100-3101.

  • Effect of preparation methods and content of Boron on hydrotreating activity. S.K. Maity, M. Lemus, J. Ancheyta. Energy & Fuels 2011, 25(7), 3100-3107.

  • Catalytic aquathermolysis used for viscosity reduction of heavy crude oils-A review. S.K. Maity, J. Ancheyta, G. Marroquin. Energy & Fuels 2010, 24 (5), 2809-2816.

  • Carbon modified Y zeolite used as support material for hydroprocessing catalysts. S.K. Maity, J. Ancheyta. Catalysis Today 2010, 150, 231-236.

  • Carbon modified alumina and alumina-carbon supported hydrotreating catalysts. S.K. Maity, L. Flores, J. Ancheyta, H. Fukuyama. Industrial Engineering Chemical Research 2009, 48, 1190-1195.

  • Comparison between refinery processes for heavy oil upgrading: a future fuel demand. M.S. Rana, J. Ancheyta, S.K. Maity, G. Marroquin. Int. J. Oil, Gas and Coal Technology 2008, 1, 250-282.

  • Study of accelerated deactivation of vanadium impregnated hydrotreating catalysts. S.K. Maity, J. Ancheyta, F. Alonso, J.A. Vázquez. Catalysis Today 2008, 130, 405-410.

  • Effect of preparation methods and contents of phosphorous on hydrotreating activity. S.K. Maity, G.A. Flores, J. Ancheyta, M.S. Rana. Catalysis Today 2008, 130-374-381.

  • Heavy Crude oil hydroprocessing: A zeolite based CoMo catalyst and its spent catalyst characterization. M.S. Rana, J. Ancheyta, S.K. Maity, Rayo. Catalysis Today 2008, 130, 411-420

  • Effect of asphaltene contained in feed on deactivation of Maya crude hydrotreating catalyst. S.K. Maity, V.H. Perez, J. Ancheyta, M.S. Rana, G. Centeno. Petroleum Science and Technology 2007, 25, 241–249.

  • Hydrotreating of Maya crude oil: I. Effect of support composition and its pore-diameter on asphaltene conversion. M.S. Rana, J. Ancheyta, S.K. Maity, Rayo, P. Pet. Sci. Technol. 2007, 25, 187-199.

  • Hydrotreating of Maya Crude Oil: II. Generalized relationship between hydrogenolysis and HDAs. M.S. Rana, J. Ancheyta, S.K. Maity, Rayo. P. Pet. Sci. Technol. 2007, 25, 201-213.

  • Catalyst deactivation during hydrotreating of Maya Crude in a batch reactor. S.K. Maity, V.H. Perez, J. Ancheyta, M.S. Rana. Energy & Fuels 2007, 21, 636-639.

  • Support effect in CoMo hydrodesulfurisation catalysts prepared with EDTA as chelating agent. M.S. Rana, J. Ramirez,A. Alejandre, J. Ancheyta, L. Cedeno, S.K. Maity. Fuel 2007, 246, 100-106. 

  • Inhibition effect by added H2S on heavy oil hydroprocessing over CoMo/Al2O3 catalyst. M.S. Rana, J. Ancheyta, P. Rayo, S.K. Maity. Fuel 2007, 86, 1263-1269.

  • Alumina−Titania mixed oxide used as support for hydrotreating catalysts of Maya heavy crude Effect of support preparation methods. S.K. Maity, J. Ancheyta, M.S. Rana, P. Rayo. Energy & Fuel 2006, 20, 427-431.

  • The Effects of Phosphorus on catalyst and on hydrotreating activity of Maya heavy crude. S.K. Maity, J. Ancheyta, M.S. Rana, P. Rayo. Catalysis Today 2005, 109, 42-48.

  • Characteristics of Maya crude hydrodemetallization and hydrodesulfurization catalysts. M.S. Rana, J. Ancheyta, S.K. Maity, P.  Rayo. Catalysis Today 2005, 104, 86–93.

  • Support effects on hydroprocessing of Maya heavy crude. S.K. Maity, J. Ancheyta, M.S. Rana. Energy & Fuels 2005, 19, 343-347.

  • Maya crude hydrodemetallization and hydrodesulfurization catalysts: An effect of TiO2 incorporation in Al2O3. M.S. Rana, J. Ancheyta, S.K. Maity, P. Rayo. Catalysis Today 2005, 109, 61-68.

  • Search for an efficient 4,6 DMDBT hydrodesulfurization catalyst: A review of recent studies. S. K. Bej, S.K. Maity, U. Turaga. Energy & Fuels 2004, 18 (5) 1227-1237.

  • Effect of alumina preparation on hydrodemetalltion and hydrodesulfurization of Maya crude. M.S. Rana, J. Ancheyta, P. Rayo, S.K. Maity. Catalysis Today 2004, 98, 151-160.

  • Preparation, characterization and evaluation of Maya crude hydrotreating catalysts. S.K. Maity, J. Ancheyta, F. Alonso, M.S. Rana. Catal. Today 2004, 98, 193-199.

  • Mo-Co(Ni)/ZrO2-SiO2 hydrotreating catalysts: physico-chemical characterization and activities studies. M.S. Rana, S.K. Maity, J. Ancheyta, G. Murali Dhar, T.S.R. Prasada. Applied Catalysis A, General 2004, 268, 89-97.

  • Cumene cracking functionalities on sulfided Co(Ni)Mo/TiO2-SiO2 catalysts. M.S. Rana, S.K. Maity, J. Ancheyta, G. Murali Dhar, T.S.R. Prasada Rao. Applied Catalysis A, General 2004, 258, 215-225.

  • Catalysts for hydroprocessing of maya heavy crude. S.K. Maity, J. Ancheyta, L. Soberanis, F. Alonso. Applied Catalysis A, General 2003, 253, 125-134.

  • TiO2-SiO2 supported hydrotreating catalysts: physico-chemical characterization and activities. M.S. Rana, S.K. Maity, J. Ancheyta, G. Murali Dhar, T.S.R. Prasada Rao. Applied Catalysis A, General 2003, 253, 165-176.

  • Mixed oxide supported hydrodesulfurization catalysts-A review. G Murali Dhar, B. N. Srinivas, M. S. Rana, Manoj Kumar, S. K. Maity. Catalysis Today 2003, 86, 45-60.

  • Alumina–titania binary mixed oxide used as support of catalysts for hydrotreating of Maya heavy crude. S.K. Maity, J. Ancheyta, L. Soberanius, F. Alonso, M.E. Llanos. Applied Catalysis 2003, 244, 141-153.

  • Alumina-silica binary mixed oxide used as support of catalysts for hydrotreating of Maya heavy crude. S.K. Maity, J. Ancheyta, L. Soberanius, F. Alonso. Applied Catalysis 2003, 250, 231.

  • TiO2-ZrO2 Mixed Oxide as a Support for Hydrotreating Catalyst. S.K. Maity, M.S. Rana, S.K. Bej, J. Ancheyta-Juárez, G. Murali Dhar, T.S.R. Prasada Rao. Catalysis Letter 2001, 72, 115-119.

  • Studies on physico-chemical characterizations and catalysis on high surface area Titania supported Molybdenum hydrotreating catalysts. S.K. Maity, M.S. Rana, S.K. Bej, J. Ancheyta-Juárez, G. Murali Dhar, and T.S.R. Prasada Rao. Applied Catalysis A. 2001, 205, 215.

  • An exploratory study for obtaining synthetic crudes from heavy crude oils via hydrotreating. J. Ancheyta-Juárez, G. Betancourt-Rivera, G. Marroquin-Sánchez, A.M. Pérez- Arellano, S.K. Maity, Ma T. Cortez, R. del Rio-Soto. Energy & Fuels 2001, 15, 120-127.

  • Effect of diluent size on the performance of a Micro-scale fixed bed multiphase reactor in Up Flow and Down flow modes of operation. S.K. Bej, A.K. Dalai, S.K. Maity. Catalysis Today, 2001, 64, 333-345.

  • Comparison of different Ni-Mo/alumina catalysts on hydrodemetallization of Maya crude oil. J. Ancheyta-Juárez, S.K. Maity, G. Betancourt-Rivera, G. Centeno-Nolasco, P. Rayo-Mayoral, Ma. T. Gómez-Pérez. Applied Catalysis A: General 2001, 216, 195-208.

  • Comparison of the performance of upflow and downflow microreactors in hydrodesulfurization reactions. L.C. castañeda-López, F. Alonso-Martínez, J. Ancheyta-Juárez, S.K. Maity. Energy & Fuels 2001, 15 (5), 1139-1144.

  • TiO2-Al2O3 supported Tungsten sulfided based hydrodesulfurization catalysts. B.N. Srinivas, M.S. Rana, S.K. Maity, T. Chiranjeevi, G. Murali Dhar, T.S.R. Prasada Rao. March 26-31, San Francisco, "Sulfur in the 21st Century", American Chemical Society Pre-print 2001, 45, 361-363.

  • Characterization and hydrodesulfurization catalysis on WS2 supported on mesoporous Al-HMS material. T Chiranjeevi, P. Kumar, S.K. Maity, M.S. Rana, G. Murali Dhar, T.S.R Prasada Rao. Microporous and Mesoporous Materials 2001, 44-45, 547-556.

  • Origin of Cracking Functionality of Sulfided (Ni) CoMo/SiO2-ZrO2 catalysts. M.S. Rana, B.N. Srinivas, S.K. Maity, G. Murali Dhar, T.S.R. Prasada Rao. Journal of Catalysis 2000, 195, 31.

  • Emerging process configuration for deep hydrodesulfurisation of diesel. S.K. Bej, A.K. Dalai, S.K. Maity. Reviews in Process Chemistry and Engineering, 2000, 3, 203-228.

  • Characterization and evaluation of ZrO2 supported hydrotreating catalysts. S.K. Maity, M. S. Rana, B. N. Srinivas, S. K. Bej, G. Murali Dhar, T.S.R. Prasada Rao. Journal of Molecular Catalysis A, Chemical 2000, 153, 121.

  • Technological options for meeting future challenges in diesel production. S.K. Maity, S.K. Bej. Chemical Engineering World 1999, 3, 37.

  • Hydroprocessing of Petroleum Refining. S.K. Maity, S.K. Bej, T.S.R. Prasada Rao. Chemical Industry Digest, July-August (1999) 61.

  • Catalytic functionlities of TiO2 based SiO2, Al2O3, ZrO2 mixed oxides hydroprocessing catalysts. M.S. Rana, B.N. Srinivas, S.K. Maity, G. Murali Dhar, T.S.R. Prasada Rao. Stud.Surf. Sci. Catal. 1999, 127, 397.

  • Studies on Sepiolite supported hydrotreating catalysts. S.K. Maity, B.N. Srinivas, V.V.D.N. Prasad, A. Singh, G. Murali Dhar, T.S.R. Prasada Rao. Stud.Surf. Sci. Catal. 1998, 113, 579.

  • Support effect studies on TiO2-Al2O3 mixed oxide supported hydroprocessing catalysts. B.N. Srinivas, S.K. Maity, V.V.D.N. Prasad, M.S. Rana, M. Kumar, G.M. Dhar, T.S.R. Prasada Rao. Stud.Surf. Sci. Catal. 1998, 113, 497.

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Book Chapters

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  • Performance of Mo catalysts supported on TiO2-based binary supports for distillate fuel hydroprocessing in chemistry of diesel fuels, Chapter 8. G.Murali Dhar, M.S. Rana, S.K. Maity, B.N. Srinivas, T.S.R. Prasada Rao. Taylor & Francis, (C. Song, S. Hsu and I. Mochida Eds.), 2000 (ISBN 1560328452).

  • Maya heavy crude oil hydroprocessing catalysts in “Hydroprocessing Heavy Oils and Residua”, Chapter 7. M.S. Rana, S. K. Maity, J. Ancheyta. Taylor & Francis, (J. Ancheyta, and J.G. Speight Eds.), 2007 (ISBN 849374197)

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Patents

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