• CSIR - Central Salt & Marine Chemicals Research Institute
  • G20
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Dr. Lakhya Jyoti Konwar
Group Member

Scientist

  • lakhyak@csmcri.res.in
  • 2567760 | Ext: 7100

Inorganic Materials and Catalysis Division

Qualification
Academic Qualifications

Research
Research Activities

Heterogeneous catalysis (in particular carbocatalysis), development of functional materials for catalytic utilization of renewables (biomass, biomolecules and CO2), high pressure and high temperature catalysis (flow and batch) covering C1 and Biomass feedstocks

-|| Research Highlights ||-

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    1. L.J. Konwar, B. Oliani, A. Samikannu, P. Canu, J-P Mikkola, Efficient hydrothermal deoxygenation of tall oil fatty acids into n-paraffinic hydrocarbons and alcohols in the presence of aqueous formic acid, Biomass Conversion and Biorefinery, https://doi.org/10.1007/s13399-020-01103-3
    2. T. Q. Bui; L.J. Konwar, A. Samikannu, D. Nikjoo, J-P. Mikkola, Mesoporous Melamine-Formaldehyde Resins as Efficient Heterogeneous Catalyst for Continuous Synthesis of Cyclic Carbonates from Epoxides and gaseous CO2, ACS Sustainable Chemistry & Engineering, 2020, 8, 34, 12852–12869.
    3. Samikannu A.*, Konwar L.J.*, Rajendran K., Lee C.C., Shchukarev A., Virtanen P., Mikkola J-P, Highly dispersed NbOPO4/SBA-15 as a versatile acid catalyst upon production of renewable jet-fuel from bio-based furanics via hydroxyalkylation-alkylation (HAA) and hydrodeoxygenation (HDO) reactions, Applied Catalysis B:  Environmental, 272, 2020, 118987, (*equal contribution) 
    4. Konwar L.J., Mäki-Arvela P., Mikkola J-P, SO3H containing functional carbon materials: synthesis, structure and acid catalysis, Chemical Reviews, 2019, 119, 22, 11576-11630.
    5. *Konwar L.J., *Samikannu A., Mäki-Arvela P., Mikkola J-P, Renewable N-doped active carbons as efficient catalysts for direct synthesis of cyclic carbonates from epoxides and CO2,  Applied Catalysis B Environmental, 241, 41-51. 2019 (*equal contribution).
    6. Konwar L.J., Samikannu A., Mäki-Arvela P., Mikkola J-P, Efficient C−C Coupling of Bio-based Furanics and Carbonyl Compounds to Liquid Hydrocarbon Precursors over Lignosulfonate Derived Acidic Carbocatalysts, Catalysis Science & Technology, 2018,8, 2449-2459.
    7. Konwar L.J., Samikannu A., Mäki-Arvela P., Boström D, Mikkola J-P, Lignosulfonate-based macro/mesoporous solid protonic acids for acetalization of glycerol to bio-additive, Applied Catalysis B Environmental, 220, 314-323. 2018.   
    8. Konwar, L.J., Mäki-Arvela, P., Kumar, N., Sarma A.K., Mikkola, J-P. & Deka, D. Selective esterification of fatty acids with glycerol to monoglycerides over –SO3H functionalized carbon catalysts, Reac Kinet Mech Cat.  119: 121–138, 2016.
    9. Konwar, L.J., Sugano, Y., Chutia, R.S., Mäki-Arvela, P., Kataki, R & Mikkola, J-P. Sustainable synthesis of N and P co-doped porous amorphous carbon using oil seed processing wastes, Materials Letters, 173, 145–148, 2016.
    10. Konwar, L.J., Mäki-Arvela, P., Thakur, A.J., Kumar, N. & Mikkola, J-P. Sulfonated carbon as a new, reusable heterogeneous catalyst for solvent free synthesis of acetone soluble cellulose acetate, RSC Advances, 6, 8829-8837, 2016.
    11. Konwar, L.J., Wärnå, J., Mäki-Arvela, P., Kumar, N. & Mikkola, J-P. Reaction kinetics with catalyst deactivation in simultaneous esterification and transesterification of acid oils to biodiesel (FAME) over a mesoporous sulphonated carbon catalyst, Fuel, 166, 1-11, 2016.
    12. Konwar, L.J., Mäki-Arvela P., Begum, P., Kumar, N., Thakur, A.J., Mikkola, J-P., Deka, R.C. & Deka, D. Shape selectivity and acidity effects in glycerol acetylation with acetic anhydride: Selective synthesis of triacetin over Y-Zeolite and sulfonated mesoporous carbons, Journal of Catalysis, 329, 237-247, 2015.
    13. Konwar, L.J., Mäki-Arvela P., Salminen, E., Kumar, N, Thakur, A.J., Mikkola, J-P. & Deka D. Towards carbon efficient biorefining: Multifunctional mesoporous solid acids obtained from biodiesel production wastes for biomass conversion, Applied Catalysis B Environmental, 176–177, 20–35, 2015.   

  • Mikkola J-P, Klint, K-V, Konwar L.J., Siljebo W., Samikannu A. Hydrothermal method for producing renewable paraffinic hydrocarbons, WO2020039031A1, 2019

  • Konwar, L.J., Kataki, R, Mikkola, J-P, Bordoloi, N, Saikia, R, & Chutia, R.S. Side-streams from bioenergy and biorefinery complexes as a resource for circular bio-economy, (Chapter 3) In Waste Biorefinery: Potential and Perspectives (Paperback ISBN: 9780444639929), 2018, Eds: A. Pandey, T. Bhaskar S.V. Mohan, D-J. Lee, S.K. Khanal. Elsevier.

  • Heterogeneous catalysis, catalytic utilization of circular feedstocks (biomass, biomolecules and CO2) for the production of high value products, R & D activities also include investigation of reaction kinetics, mechanisms and catalyst deactivation
  • Heterogeneous catalysis (in particular carbocatalysis), development of functional materials for catalytic utilization of renewables (biomass, biomolecules and CO2), high pressure and high temperature catalysis (flow and batch) covering C1 and Biomass feedstocks
  • Others