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Patent
1. Integrated Apparatus for Producing Ammonia, US Patent No: US20200325030A1

Journal Publications

19. Prasad, A; Ojha, D.K. Valorization of textile wastes into value-added products using pyrolysis, Waste Management (submitted)

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18. Singh, D.K., Singh, A., Ojha, D.K. Integrated Experimental and Computational Analysis of Combustion and Pyrolysis Behavior in Rice Straw and High-Ash Indian Coal Blends, Journal of Thermal Analysis & Calorimetry (Under Review)

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17. Jogi, K; Jha, P.K.; Ojha, D.K. Hybrid Modelling of Forest Fires Using Monte Carlo Simulation, Journal of Computational Science (Under review)

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16. Singh, A.; Singh, D.; Ojha, D.K.; Chemical Engineering perspective of pyrolysis reactor and condenser system for biomass valorization, Sust. Chem. Clim. Action, 2024, 5, 100046

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15. Meena, M.K.; Bhaskar, T.; Gourishetty, A.K., Ojha, D.K.; Ionizing radiation as a pretreatment technique on the valorization of rice straw, Int. J. Green Energy, 2023,  DOI: 10.1080/15435075.2023.2234988.

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14. Goyal, I; Prasad, A; Kumar, S.; Ojha, D.K. Techno-Economic Analysis of Integrated Torrefaction and Pelleting Process, Int. J. Green Energy, 2023,  DOI:10.1080/15435075.2023.2232857

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13. Meena, M.K; Anand, S.; Ojha, D.K. Interdependency of pyrolysis and combustion: A case study for Lignocellulosic biomass, J. Therm. Anal. Calorim. 2023, 148, 5509.

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12. Bariha, N.; Ojha, D.K.; Srivastava, V.C.; Mishra, I.M. Fire and risk analysis during loading and unloading operation in liquefied petroleum gas (LPG) bottling plant, J. Loss Prev. Process Ind. 2023, 81, 104928

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11. Ojha, D.K.; Vangala, S.P.K.; Vinu, R. Analytical pyrolysis of bagasse and groundnut shell briquettes: Kinetics and pyrolysate composition studies, Bioresour. Technol. Rep. 2021, 15,100784

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10. Ojha, D.K.; Vinu, R. Fast pyrolysis kinetics of lignocellulosic biomasses of varying composition, Energ. Convers. Manage.:X 2021, 9, 105382.

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9. Ojha D. K.;…. Cussler E.L. Desorption in Ammonia Manufacture from Stranded Wind Energy, ACS Sustain. Chem. Eng. 2020, 8(41), 15475-15483.

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8. Mathew J.K.; Ojha D.K.;…. Cussler E.L. Optimizing Ammonia Absorbents for Sustainable Synthesis, ACS Appl. Energ. Mat. 2020, 3 (3), 2576–2584

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7. Ojha D.K.; Mathew J.K.; McCormick A.V.; Reese M.; Dauenhauer P.; Cussler E.L. Integrated Ammonia synthesis and Separation, ACS Sustain. Chem. Eng. 2019, 7(23), 18785-92.

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6. Ojha D.K.; Viju, D.; Vinu, R. Fast pyrolysis Kinetics of Alkali Lignin: Evaluation of apparent rate parameters and product time evolution, Bioresour. Technol. 2017, 241, 142- 151.

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5. Ojha, D.K.; Shukla, S.; Sachin, R.S.; Vinu, R. Understanding the interactions between cellulose and polypropylene during fast co-pyrolysis via experiments and DFT calculations, Chemical Engineering Transactions 2016, 50, 67- 72

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4. Ojha, D.K.; Vinu, R. Fast co-pyrolysis of cellulose and polypropylene using Py-GC/MS and Py-FTIR, RSC Adv. 2015, 5, 66861-66870

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3. Tripathi, A.K.; Ojha, D.K.; Vinu, R. Selective production of valuable hydrocarbons from waste motorbike engine oils via catalytic fast pyrolysis using zeolites, J. Anal. Appl. Pyrol. 2015, 114, 281-292.

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2. Ojha, D.K.; Vinu, R. Resource Recovery via catalytic fast pyrolysis of polystyrene using zeolites, J. Anal. Appl. Pyrol. 2015, 113, 349-359

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1. Suriapparao, D.V.; Ojha, D.K.; Ray, T.; Vinu, R. kinetic analysis of co-pyrolysis of cellulose and polypropylene, J. Therm. Anal. Calorim. 2014, 117, 1441-1451

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Book Chapters

  1. Ojha, D.K.; Vinu, R. Co-pyrolysis of lignocellulosic biomass with waste plastics for resource and energy recovery, In:  Pandey, A.; Bhaskar, T.; Mohan, S.V.; Lee, D.-J.; Khanal, S.K. (Eds.), Waste Biorefinery: Potential and Perspectives, Elsevier, 2018, ISBN: 978-0444639929

  2. Vinu, R.; Ojha, D.K.; Nair, V. Polymer pyrolysis for resource recovery. In: Reedijk, J. (Ed.) Elsevier Reference Module in Chemistry, Molecular Sciences and Chemical Engineering. Waltham, MA: Elsevier. 2016, doi: 10.1016/B978-0-12-409547-2.11641-5.

Conference Presentations

9. Ojha, D.K., Prasad, A. Valorization of textile waste into value-added products (Invited Talk), PyroAsia-2024, 27-28 Nov. 2024, IIT Guwahati, India

8. Ojha, D.K. Application of thermal analysis in the development of biomass valorization technology (Invited Talk), 18th ICTAC-2024, 02-07 Sept. 2024, IIT Madras.

7. Ojha, D.K., Das, A., Prasad,A. Techno-economic analysis of ammonia synthesis processes, ICPHD-2023, 2-6 Nov. 2023, IIT Guwahati, India

6. Ojha, D.K. Decarbonizing ammonia manufacturing (Invited Talk), 3rd International Conference on Waste, Energy & Environment (ICWEE- 2023), 5-7 July 2023, Sathyabama University Chennai, India

5. Ojha, D.K.; Vinu, R.Kinetics of Fast Pyrolysis and Fast Hydropyrolysis of Biomass using Py- GC/MS, 2016 American Institute of Chemical Engineers (AIChE) Annual Meeting, 13-18 Nov. 2016, San Francisco, CA, U.S.A.

4. Ojha, D.K.; Vinu, R. Production of biofuel via fast pyrolysis of agro wastes, International Conference on Energy Innovations - Today and tomorrow, 14-15 Oct. 2016, HPCL Green R&D Centre, Bengaluru, India.

3. Ojha, D.K.; Shukla, S.; Sachin, R.S.; Vinu, R. Understanding the interactions between cellulose and polypropylene during fast co-pyrolysis via experiments and DFT calculations, 2nd International Conference on Biomass 2016 (IConBM 2016), 19-22 Jun. 2016, Giardini Naxos-Taormina, Sicily, Italy

2. Ojha, D.K.; Vinu, R. Fast Pyrolysis of Baggase and Groundnut Briquettes using Py-GC/MS and Py-FTIR, 21st International Symposium on Analytical and Applied Pyrolysis (Pyro 2016), 9-12 May 2016, Nancy, France.

1. Ojha, D.K.; Vinu, R. Production of high-quality bio-oil via fast co-pyrolysis of cellulose and polypropylene, International workshop on sustainable energy, power and propulsion, Jan. 5-7 2015, Jadavpur University, Kolkata.

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