Dineshkumar Muniyappan

@rsf.nitt.edu

Reseach Scholar, Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli
National Institute of Technology, Tiruchirappalli

Dineshkumar Muniyappan


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https://researchid.co/dinesh0303
A highly motivated, dynamic, and research-oriented professional with Ph.D. in Mechanical Engineer gained experience in synthesizing heterogeneous catalysts, specifically waste-derived iron-oxide, and bi-metal doped catalysts for converting waste biomass and plastic waste into fuel-grade hydrocarbons through microwave pyrolysis. Further, hands-on experience in designing laboratory-scale microwave pyrolysis reactors into a pilot-scale unit; completed a master’s degree in Thermal Engineering to develop and refine multitudinous skill sets in thermochemical processing for waste valorisation and bioenergy generation - now ready to apply those skills in an organization of eminence.

EDUCATION

Ph.D in Mechanical Engineering at National Institute of Technology, Tiruchirappalli, Tamil Nadu, India.

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Energy, Fuel Technology, Catalysis
9

Scopus Publications

115

Scholar Citations

7

Scholar h-index

6

Scholar i10-index

Scopus Publications

  • Biodiesel production using microreactor with integrated microheater through multi-objective optimization approach
    Gopi R, Dineshkumar Muniyappan, Anand Ramanathan
    Chemical Engineering and Processing Process Intensification, 2024
  • Multivariate combined optimization strategy and comparative life-cycle assessment of biomass and plastic residues via microwave co-pyrolysis approach towards a sustainable synthesis of renewable hydrocarbon fuel
    Dineshkumar Muniyappan, Guilherme Rodrigues Lima, Amaro Olimpio Pereira, R. Gopi, Anand Ramanathan
    Journal of Environmental Chemical Engineering, 2023
  • Synergistic recovery of renewable hydrocarbon resources via microwave co-pyrolysis of biomass residue and plastic waste over spent toner catalyst towards sustainable solid waste management
    Dineshkumar Muniyappan, Amaro Olimpio Pereira Junior, Angkayarkan Vinayakaselvi M, Anand Ramanathan
    Energy, 2023
  • Research progress in the co-pyrolysis of renewable biomass with plastic wastes for the synergetic production of chemicals and biofuels: A review
    Dineshkumar Muniyappan, Banagiri Shrikar, Uthayakumar Azhagu, Meera Sheriffa Begum K. M, Angkayarkan Vinayakaselvi M., Anand Ramanathan
    Journal of Renewable and Sustainable Energy, 2023
    The quantity of plastic waste generated by the public has increased dramatically over the years. Biomass is an abundant and substantial energy resource found in diverse forms all over the planet. In this regard, the co-pyrolysis of plastic and biomass wastes is an attractive option to mitigate the issue of waste accumulation and viable fuel production. This review focuses on progress in waste disposal and energy generation through co-pyrolysis. The properties of common solid feedstock combinations are addressed with an emphasis on proximate analysis, elemental composition, and heating value. Subsequently, state-of-the-art kinetics is reviewed and compared for the efficacies of various kinetic models, which could be applied to understand decomposition mechanisms. The synergy between biomass and plastics was analyzed, and the impact of decomposition mechanisms on the bio-oil, char, and gas yield and composition was discussed. In addition, this study unveiled various reaction pathways for non-catalytic and catalytic co-pyrolysis. Finally, a summary of the economics in co-pyrolysis with knowledge gaps concerning waste management and energy production is addressed. The main goal of this review is to provide a feasible, practical pathway for clean and effective plastic waste disposal by using biomass waste to increase the synergistic effect.
  • Sustainable valorization of waste keyboard keys via microwave assisted pyrolysis over Fe-Ni doped green catalyst towards clean fuel production
    Dineshkumar Muniyappan, Madhangi Ramanathan, Anand Ramanathan, Kartikeya Shukla, Meera Sheriffa Begum K.M
    Energy Sources Part A Recovery Utilization and Environmental Effects, 2023
    The technological evolution of electronic equipment in the field of computers and household appliances, along with shorter life of most items, is creating a great concern for managing this waste stream. The main aim of the present investigation was to convert waste keyboard keys into high-quality pyrolysis oil using a microwave catalytic pyrolysis process. Iron (Fe), Nickel (Ni), were doped in different ratios on Biochar (BC) by wet impregnation method, and it was used as a green catalyst for clean fuel production. Initially, a non-catalytic pyrolysis process was conducted and found a maximum pyrolysis oil yield of 49.6 wt.%. Further, microwave catalytic pyrolysis was conducted with variable amount of metal loading and found that highest oil yield of 61.33 wt.% was achieved using 15%Fe-5%Ni/BC catalyst due to the presence of a higher quantity of iron. The produced pyrolysis oil at this condition consists of 45.07% single-ring compounds and reduced the undesirable polycyclic aromatic hydrocarbons (PAHs) in the pyrolysis oil. This work provides a pathway for preparing green catalysts and safe disposal of electrical and electronic plastic waste with better resource recovery.
  • Aspen HYSYS simulation of biomass pyrolysis for the production of methanol
    M Arul, M Dinesh Kumar, Anand Ramanathan
    Iop Conference Series Earth and Environmental Science, 2019
    In terms of supplying energy carriers for the transport sector and storing electricity outflows from intermittent sources, the importance of renewable fuel production has become significant. In this work, the production of methanol fuel from biomass is simulated. Biomass is an excellent renewable resource for the production of methanol. It is of utmost importance to make effective use of biomass resources. There are different methods available for the production of methanol from biomass. One of the best methods is pyrolysis to convert biomass into methanol. This is due to the fact that pyrolysis is an efficient conversion method compared to other thermochemical conversion practices. Pyrolysis is the process of decomposing biomass in an inert atmosphere to convert it into worthwhile products. The production of methanol from sugarcane bagasse via pyrolysis was simulated using Aspen HYSYS because of its ability to solve chemical as well as energy problems. To simulate the microwave assisted pyrolysis reactor, an Aspen HYSYS model was developed. The model is based on Gibbs free energy and it has been calibrated using the restricted equilibrium method. The model was validated and foresees the percentage of methanol yield, the predicted values very well agreed with the available data. Important parameters of the pyrolysis process such as pyrolysis temperature, sweeping nitrogen gas flow rate, heating rate, biomass moisture content were varied. It was found that pyrolysis temperature, nitrogen flow rate, heating rate have a very profound influence on the pyrolysis process and methanol yield, while the moisture content of biomass had a lesser impact.
  • Development of computer aided modelling and optimization of microwave pyrolysis of biomass by using aspen plus
    M Dineshkumar, Banagiri Shrikar, Anand Ramanathan
    Iop Conference Series Earth and Environmental Science, 2019
    Abstract Biomass energy is nowadays recognized as a potential source which constitutes the main portion of expected renewable energy supplies in the future. Biomass resources such as municipal solid waste, agricultural residue food processing industry waste, energy crops are a common type of renewable energy source and it help to produce energy, chemicals, and fuels. The useful energy recovered from biomass can be effectively utilized by a bio-energy conversion technique known as pyrolysis. Pyrolysis is considered as a kind of thermo-chemical conversion technique of waste material in the inert atmosphere to harvest biochar, syn-gas and bio fuel. Bio fuel harvest from forestry biomass through the microwave pyrolysis technology has been significantly attracting attention in the renewable energy sector over recent years. This is because of fact that microwave pyrolysis can possibly reduce greenhouse gases and contribute to energy security. A simulation model of pyrolysis process is developed by using a software called advanced system for process engineering it is basically a simulation tool for computer-aided energy modelling. This software is used to optimize and analyse the efficiency of the process involved in pyrolysis and to increase the output product yield such as bio-oil, syn-gas, and biochar with respect to the function of input parameters such as pyrolysis temperature and physio-chemical character of the biomasses. The ASPEN PLUS simulation is carried out using four different variety of biomasses namely Acacia Nilotica, Calophyllum inophyllum seed, rice husk, and Bael shell. The simulation results demonstrate that Calophyllum inophyllum seed is best suited for bio-oil production through microwave pyrolysis as it contains low moisture content and higher cellulose. The obtained bio-oil yield is up to 48% can be found from this non-edible biomass.
  • Synthesis and characterization study of solid carbon biocatalyst produced from novel biomass char in a microwave pyrolysis
    M. Dineshkumar, K.M. Meera Sheriffa Begum, Banagiri Shrikar, Anand Ramanathan
    Materials Today Proceedings, 2019
    Biochar is considered to be one of the most significant by-products obtained from biomass pyrolysis. Biochar is of significant importance in soil amendment, catalyst preparation, and activated carbon formation. Microwave pyrolysis is one of the emerging trends in biochar production. Since the residence time in a typical microwave pyrolysis reactor is quite high, biochar is often the major by-product of biomass microwave pyrolysis. Microwave pyrolysis additionally is an extremely energy-efficient method. This present study involves the preparation and characterization of biochar produced from senna pendula seedcake. The biochar produced from the pyrolysis (up to 600 ˚C) is then subjected to sulphonation using fuming sulphuric acid. TG analysis shows that pyrolysis occurred between 200 and 450 ˚C. FTIR analysis results show that upon sulphonation, the biochar has been strongly carbonized. Both FTIR and XRD analyses showed that biochar had been impregnated with carbonyl and sulphonyl groups post sulphonation. SEM micrography results showed that sulphonation had caused a breakdown of existing organic compounds along with an increase in pore diameter.
  • Study on availability analysis, performance and emission behavior for an oxygen enriched turbocharged diesel engine
    M. Dineshkumar, Banagiri Shrikar, Ramesh Kasimani, Anand Ramanathan
    Materials Today Proceedings, 2019
    There is an ever-increasing necessity for sustainable energy resources. The restrictions on diesel engines, which were already strict in the previous decade, are only going to increase in the next one. A zero-emission diesel engine has become an absolute necessity. Furthermore, it is critical to increase the thermal efficiency of these engines. Dimethyl Carbonate (DMC) is gaining popularity as an oxygenated additive to diesel due to its desirable boiling point and good solubility. The current work investigates the performance, emission and exergy parameters of a diesel engine with DMC as an additive. Additionally, we also explore the effects of oxygenation at the air side by introducing a turbocharger at the intake manifold. Four different blends of oxygenated additives were analysed with the turbocharger in operation. Here, a 5% blend of DMC produced the most desirable results. When a 5% blend of DMC with diesel was tried out, the brake thermal efficiency increased by 4 percent. At maximum brake mean pressure 4.8 bar, the maximum exergy efficiency was 65%. This blend also has least the brake specific fuel consumption and carbon monoxide emissions. These results emphasize the usage of DMC as an additive, and are of direct relevance to the alternative fuel industry—aiding it in making informed decisions about blending fuel additives.

RECENT SCHOLAR PUBLICATIONS

  • A method for sustainable recovery of bio-oil from Delonix regia seed pods
    AR Lakshmanan, Dineshkumar Muniyappan
    IN Patent 569,763 , 2025
    2025
  • Aligning Life Cycle Assessment methods and bio-based sectors for improved environmental performance
    LH Dineshkumar Muniyappan, Damien Arbault, Rebecca Belfiore
    https://alignedproject.eu/wp-content/uploads/2025/10/D2.2-Report-for … , 2025
    2025
  • Consequential Life Cycle Assessment of Bio-Phenol Recovery from Softwood Pyrolysis
    Dineshkumar Muniyappan, Damien Arbault, Rebecca Belfiore, Lorie Hamelin
    12th International Conference on Lifecycle Management 1 (2.12), 213 , 2025
    2025
  • Advancements in plasma technology for circular waste management and green hydrogen production: A review
    U Azhagu, D Muniyappan, A Ramanathan
    Journal of Renewable and Sustainable Energy 17 (3) , 2025
    2025
    Citations: 5
  • A Process for sustainable synthesis of biodiesel from non-edible hydnocarpus wightiana biomass
    DM R. Gopi, Anand Ramanathan
    IN Patent 554,827 , 2024
    2024
  • An improved method for recycling electronic plastic waste using bi-metal doped catalyst
    U Dineshkumar Muniyappan, Anand Ramanathan
    IN Patent 529,729 , 2024
    2024
  • Biodiesel production using microreactor with integrated microheater through multi-objective optimization approach
    R Gopi, D Muniyappan, A Ramanathan
    Chemical Engineering and Processing-Process Intensification 195, 109646 , 2024
    2024
    Citations: 11
  • Multivariate combined optimization strategy and comparative life-cycle assessment of biomass and plastic residues via microwave co-pyrolysis approach towards a sustainable …
    D Muniyappan, GR Lima, AOP Junior, R Gopi, A Ramanathan
    Journal of Environmental Chemical Engineering 11 (6), 111436 , 2023
    2023
    Citations: 22
  • Synergistic recovery of renewable hydrocarbon resources via microwave co-pyrolysis of biomass residue and plastic waste over spent toner catalyst towards sustainable solid …
    D Muniyappan, AOP Junior, A Ramanathan
    Energy 278, 127652 , 2023
    2023
    Citations: 29
  • Co-pyrolysis of Biomass with Polymer Waste for the Production of High-quality Biofuel
    D Muniyappan, A Ramanathan
    Waste to Profit, 189-203 , 2023
    2023
  • Waste to profit: environmental concerns and sustainable development
    MSB KM, A Ramanathan, AOP Junior, DO Glushkov, MA Vinayakaselvi
    CRC Press , 2023
    2023
  • Research progress in the co-pyrolysis of renewable biomass with plastic wastes for the synergetic production of chemicals and biofuels: A review
    AR Dineshkumar Muniyappan, Banagiri Shrikar, Uthayakumar Azhagu, Meera ...
    Journal of Renewable and Sustainable Energy 15 (2), 022701 , 2023
    2023
    Citations: 16
  • A Process for High- Grade Transportation Fuel Production from Non-Woven Fabric Waste
    AR Uthayakumar Azhagu, Dineshkumar Muniyappan
    IN Patent 426,387 , 2023
    2023
  • Waste Disposal System
    AR Uthayakumar Azhagu, Dineshkumar Muniyappan
    IN Patent App. 202,241,055,780 , 2023
    2023
  • Sustainable valorization of waste keyboard keys via microwave assisted pyrolysis over Fe-Ni doped green catalyst towards clean fuel production
    MSBKM Dineshkumar Muniyappan, Madhangi Ramanathan, Anand Ramanathan ...
    Energy sources Part A: Recovery, Utilization and Environmental Effects 45 (1 … , 2023
    2023
    Citations: 10
  • Bio-Oil from Cassia Fistula Seed Pods and Method Thereof
    AR Dineshkumar Muniyappan, Hrishikesh Babasaheb Gaikwad
    IN Patent 428,613 , 2022
    2022
  • Development of Quartz reactor vessel
    AR Dineshkumar Muniyappan
    IN Patent App. 347126-023 , 2022
    2022
  • Study on availability analysis, performance and emission behavior for an oxygen enriched turbocharged diesel engine
    R Dineshkumar,M, Anand Ramanathan
    Materials today proceedings , 2021
    2021
    Citations: 4
  • Synthesis and characterization study of solid carbon biocatalyst produced from novel biomass char in a microwave pyrolysis
    M Dineshkumar, KMMS Begum, B Shrikar, A Ramanathan
    Materials Today: Proceedings 46, 9814-9819 , 2021
    2021
    Citations: 10
  • Aspen HYSYS simulation of biomass pyrolysis for the production of methanol
    M Dineshkumar, A Ramanathan, A M
    Earth and Environmental Science 312 , 2019
    2019

MOST CITED SCHOLAR PUBLICATIONS

  • Synergistic recovery of renewable hydrocarbon resources via microwave co-pyrolysis of biomass residue and plastic waste over spent toner catalyst towards sustainable solid …
    D Muniyappan, AOP Junior, A Ramanathan
    Energy 278, 127652 , 2023
    2023
    Citations: 29
  • Multivariate combined optimization strategy and comparative life-cycle assessment of biomass and plastic residues via microwave co-pyrolysis approach towards a sustainable …
    D Muniyappan, GR Lima, AOP Junior, R Gopi, A Ramanathan
    Journal of Environmental Chemical Engineering 11 (6), 111436 , 2023
    2023
    Citations: 22
  • Research progress in the co-pyrolysis of renewable biomass with plastic wastes for the synergetic production of chemicals and biofuels: A review
    AR Dineshkumar Muniyappan, Banagiri Shrikar, Uthayakumar Azhagu, Meera ...
    Journal of Renewable and Sustainable Energy 15 (2), 022701 , 2023
    2023
    Citations: 16
  • Biodiesel production using microreactor with integrated microheater through multi-objective optimization approach
    R Gopi, D Muniyappan, A Ramanathan
    Chemical Engineering and Processing-Process Intensification 195, 109646 , 2024
    2024
    Citations: 11
  • Sustainable valorization of waste keyboard keys via microwave assisted pyrolysis over Fe-Ni doped green catalyst towards clean fuel production
    MSBKM Dineshkumar Muniyappan, Madhangi Ramanathan, Anand Ramanathan ...
    Energy sources Part A: Recovery, Utilization and Environmental Effects 45 (1 … , 2023
    2023
    Citations: 10
  • Synthesis and characterization study of solid carbon biocatalyst produced from novel biomass char in a microwave pyrolysis
    M Dineshkumar, KMMS Begum, B Shrikar, A Ramanathan
    Materials Today: Proceedings 46, 9814-9819 , 2021
    2021
    Citations: 10
  • Development of computer aided modelling and optimization of microwave pyrolysis of biomass by using aspen plus
    M Dineshkumar, A Ramanathan
    Earth and Environmental Science 312 , 2019
    2019
    Citations: 8
  • Advancements in plasma technology for circular waste management and green hydrogen production: A review
    U Azhagu, D Muniyappan, A Ramanathan
    Journal of Renewable and Sustainable Energy 17 (3) , 2025
    2025
    Citations: 5
  • Study on availability analysis, performance and emission behavior for an oxygen enriched turbocharged diesel engine
    R Dineshkumar,M, Anand Ramanathan
    Materials today proceedings , 2021
    2021
    Citations: 4
  • A method for sustainable recovery of bio-oil from Delonix regia seed pods
    AR Lakshmanan, Dineshkumar Muniyappan
    IN Patent 569,763 , 2025
    2025
  • Aligning Life Cycle Assessment methods and bio-based sectors for improved environmental performance
    LH Dineshkumar Muniyappan, Damien Arbault, Rebecca Belfiore
    https://alignedproject.eu/wp-content/uploads/2025/10/D2.2-Report-for … , 2025
    2025
  • Consequential Life Cycle Assessment of Bio-Phenol Recovery from Softwood Pyrolysis
    Dineshkumar Muniyappan, Damien Arbault, Rebecca Belfiore, Lorie Hamelin
    12th International Conference on Lifecycle Management 1 (2.12), 213 , 2025
    2025
  • A Process for sustainable synthesis of biodiesel from non-edible hydnocarpus wightiana biomass
    DM R. Gopi, Anand Ramanathan
    IN Patent 554,827 , 2024
    2024
  • An improved method for recycling electronic plastic waste using bi-metal doped catalyst
    U Dineshkumar Muniyappan, Anand Ramanathan
    IN Patent 529,729 , 2024
    2024
  • Co-pyrolysis of Biomass with Polymer Waste for the Production of High-quality Biofuel
    D Muniyappan, A Ramanathan
    Waste to Profit, 189-203 , 2023
    2023
  • Waste to profit: environmental concerns and sustainable development
    MSB KM, A Ramanathan, AOP Junior, DO Glushkov, MA Vinayakaselvi
    CRC Press , 2023
    2023
  • A Process for High- Grade Transportation Fuel Production from Non-Woven Fabric Waste
    AR Uthayakumar Azhagu, Dineshkumar Muniyappan
    IN Patent 426,387 , 2023
    2023
  • Waste Disposal System
    AR Uthayakumar Azhagu, Dineshkumar Muniyappan
    IN Patent App. 202,241,055,780 , 2023
    2023
  • Bio-Oil from Cassia Fistula Seed Pods and Method Thereof
    AR Dineshkumar Muniyappan, Hrishikesh Babasaheb Gaikwad
    IN Patent 428,613 , 2022
    2022
  • Development of Quartz reactor vessel
    AR Dineshkumar Muniyappan
    IN Patent App. 347126-023 , 2022
    2022

Publications

Dineshkumar Muniyappan, Amaro Olimpio Pereira Junior, Angkayarkan Vinayakaselvi M, Anand Ramanathan, “Synergistic recovery of renewable hydrocarbon resources via microwave co-pyrolysis of biomass residue and plastic waste over spent toner catalyst towards sustainable solid waste management” Energy.

Dineshkumar Muniyappan, Guilherme Rodrigues Lima, Amaro Olimpio Pereira Junior, Gopi R, Anand Ramanathan, “Multivariate combined optimization strategy and comparative life-cycle assessment of biomass and plastic residues via microwave co-pyrolysis approach towards a sustainable synthesis of renewable hydrocarbon fuel” Journal of Environmental Chemical Engineering.

Dineshkumar Muniyappan, Banagiri Shrikar, Uthayakumar Azhagu, Meera Sheriffa Begum K.M, Angkayarkan Vinayakaselvi M, Anand Ramanathan. “Research progress in the co-pyrolysis of renewable biomass with plastic wastes for the synergetic production of chemicals and biofuels: A Journal of Renewable and Sustainable Energy.

Dineshkumar Muniyappan, Madhangi Ramanathan, Anand Ramanathan, Kartikeya Shukla, Meera Sheriffa Begum K.M, Sustainable valorization of waste keyboard keys via microwave assisted pyrolysis over Fe-Ni doped green catalyst towards clean fuel production. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects.

GRANT DETAILS

Junior Research Fellow for a project entitled “Environmental and Energy Impacts of Higher Alcohol and Biofuel Synthesis by Thermochemical Process” sponsored by SPARC-MHRD, Govt of India (Project no.: SPARC/2018-2019/P965/SL).

RESEARCH OUTPUTS (PATENTS, SOFTWARE, PUBLICATIONS, PRODUCTS)

Bio-Oil from Cassia Fistula Seed Pods and Method Thereof

A Process for High-Grade Transportation Fuel Production from Non-Woven Fabric Waste

Waste Disposal System

Design and Development of Quartz Reactor Vessel for Microwave Pyrolysis System.

A Process for the Preparation of Organic Phase Change Material from Thin Film Plastic Waste

An Improved Method for Recycling Electronic Plastics Waste using Bi-metal Doped Catalyst

A Process for Sustainable Synthesis of Biodiesel from Non-Edible Hydnocarpus Wightiana Biomass and Method Thereof

Sustainable Recovery of Renewable Bio-oil from Delonix Regia Seed Pods and Method Thereof

Industry, Institute, or Organisation Collaboration

Visiting Research Fellow in the Department of Energy Planning Programme-PPE, Institute of Graduate Studies in Engineering Alberto Luiz Coimbra–COPPE of the Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
• Performed experimentation and techno-economical with life cycle assessment of biomass and plastic waste co-pyrolysis for a scaled-up plant using Sima Pro.
• Delivered a guest lecture on the topic titled “Indian Energy Scenarios” for the M.Tech Energy Planning, UFRJ, Brazil.