2026
Synergistic Effect of Biosurfactant and Chemical Surfactant with Salinity on Enhanced Oil Recovery. A Mishra, P Tiwari, LM Pandey - Energy & Fuels 40 (19), 10322-10334, 2026
2025
Influence of salt-biosurfactant-biosynthesized silica nanoparticle on oil-water interfacial dynamics. A Mishra, P Tiwari, LM Pandey - Fuel 402, 136049, 2025
2025
Pyrolysis of waste printed circuit board fragments: Response surface methodology optimization and effect of temperature on product characteristics. B Boro, P Tiwari - Energy 319, 134892, 2025
2025
Modelling and simulation of H2-blended NG powered SOFC for heat and power generation applications. S Bharati, BSM Reddy, S Purohit, I Kalita, DJ Shendage, P Tiwari, ... - Applied Energy 390, 125867, 2025
2025
Ultrasonication-assisted coal desulfurization: Mechanisms, process optimization, and industrial applications for sustainable energy. V Kumar, SK Verma, G Sahu, P Tiwari - Next Research 2 (4), 101009, 2025
2025
T22: Pyrolysis. B Boro, P Tiwari - BOOK OF, 220, 2025
2024
Effect of metals and brominated flame retardants on thermal degradation kinetics of waste printed circuit board. B Boro, P Tiwari - Thermochimica Acta 736, 179747, 2024
2024
Chemical EOR opportunities in depleted reservoirs of Assam Arakan Basin: A laboratory EOR approach in Tengakhat area of Assam. V Dhar, K Sarma, S Hens, D Baishya, R Sarmah, P Tiwari - Energy & Fuels 38 (15), 14052-14063, 2024
2024
Simulation study for identifying the mechanism of direct liquefaction of coal-related model compounds with methanol as solvent. G Dubey, P Vairakannu, P Tiwari - Reaction Kinetics, Mechanisms and Catalysis 137 (3), 1553-1576, 2024
2024
Applications of microbial biosurfactants in oil recovery. S Pannu, LM Pandey, P Tiwari - Microbial approaches for sustainable green technologies, 68-86, 2024
2023
An experimental study of pore-scale flow dynamics and heavy oil recovery using low saline water and chemical flooding. VK Sharma, A Singh, P Tiwari - Fuel 334, 126756, 2023
2023
Techno economic comparison of combustor integrated steam reforming and sorption enhanced chemical looping steam reforming of methanol. MM Ahmed, RK Upadhyay, P Tiwari - Chemical Engineering Research and Design 192, 299-309, 2023
2023
Recent perspectives on the management of formation water generated from hydrocarbon reservoirs. RM Rajendran, RA Selvam, P Tiwari, LM Pandey - ACS ES&T Water 3 (6), 1502-1514, 2023
2023
Solid flow mapping at the bottom section of a pilot-plant scale riser with the help of a radioactive particle tracking technique. T Tribedi, P Tiwari, HJ Pant, RK Upadhyay - Industrial & Engineering Chemistry Research 62 (45), 19133-19144, 2023
2023
Solid Phase Macromixing Study in a Pilot-Scale Geldart Group B Circulating Fluidized Bed Riser Using Single Particle RTD and RPT Measurements. T Tribedi, P Tiwari, HJ Pant, RK Upadhyay - ACS Engineering Au 3 (3), 165-172, 2023
2023
Numerical Simulation of Pore-Scale Fluid Mobilization during Immiscible Displacement. VK Sharma, A Singh, P Tiwari, R Gupta - Energy & Fuels 38 (2), 932-947, 2023
2022
Investigation of co-pyrolysis mechanism of oil shale and rubber seed shell, product yield and optimization of pyrolysis parameter using response surface methodology. B Baruah, P Tiwari - Fuel 317, 123441, 2022
2022
Modeling and simulation of wood pyrolysis process using COMSOL Multiphysics. S Solanki, B Baruah, P Tiwari - Bioresource Technology Reports 17, 100941, 2022
2022
Experimental and simulation study of surfactant flooding using a combined surfactant system for enhanced oil recovery. S Pannu, R Phukan, P Tiwari - Petroleum Science and Technology 40 (23), 2907-2924, 2022
2022
Measurements of solid velocity in a pilot-scale Geldart’s group B circulating fluidized bed using a radioactive particle tracking technique. T Tribedi, P Pillajetti, R Kumari, HJ Pant, P Tiwari, RK Upadhyay - Industrial & Engineering Chemistry Research 61 (25), 9110-9121, 2022
2022
Soaking and hydrous pyrolysis of Indian oil shale: Identification of produced hydrocarbons and moieties. B Baruah, P Tiwari - Fuel 322, 124255, 2022
2022
Material recovery from waste printed circuit board using pyrolysis and metal extraction. B Boro, P Tiwari - North-East Research Conclave, 199-210, 2022
2022
Development of reforming catalyst for hydrogen production and its suitability for proton exchange membrane fuel cell. P Borgohain, P Tiwari, RK Upadhyay - North-East Research Conclave, 33-40, 2022
2022
Effect of chemical treatment on decomposition profiles of carbon fiber reinforced polymer composites and its recycling. EK Sachin, P Tiwari, N Muthu - North-East Research Conclave, 221-226, 2022
2021
Comparative study of physicochemical and rheological property of waste cooking oil, castor oil, rubber seed oil, their methyl esters and blends with mineral diesel fuel. AK Paul, VB Borugadda, AS Reshad, MS Bhalerao, P Tiwari, VV Goud - Materials Science for Energy Technologies 4, 148-155, 2021
2021
Secondary and tertiary oil recovery processes. P Kalita, V Sharma, L Pandey, P Tiwari - Microbial Enhanced Oil Recovery: Principles and Potential, 23-50, 2021
2021
Chemical nanofluids in enhanced oil recovery: fundamentals and applications. R Saha, P Tiwari, RVS Uppaluri - CRC Press, 2021
2021
Micro-particle image velocimetry measurements of pore-scale velocity field during nanoparticle-assisted alkaline flooding. VK Sharma, P Tiwari, A Singh - Energy & Fuels 35 (16), 12957-12973, 2021
2021
Optimization of culture conditions for the production of biosurfactants. S Sharma, P Tiwari, L Pandey - Microbial enhanced oil recovery: Principles and potential, 149-178, 2021
2021
Petroleum reservoirs and oil production mechanisms. B Baruah, P Kalita, L Pandey, P Tiwari - Microbial enhanced oil recovery: Principles and potential, 1-21, 2021
2021
CO2-Based Enhanced Oil Recovery. R Phukan, R Saha, L Pandey, P Tiwari - Microbial Enhanced Oil Recovery: Principles and Potential, 51-71, 2021
2021
Identification of various metabolites like gases, biopolymers and biosurfactants. S Sharma, P Tiwari, L Pandey - Microbial enhanced oil recovery: Principles and potential, 197-220, 2021
2021
Design of consortium for the production of desired metabolites. S Sharma, P Tiwari, L Pandey - Microbial enhanced oil recovery: principles and potential, 179-195, 2021
2021
Recent case studies of in-situ and ex-situ microbial enhanced oil recovery. P Datta, P Tiwari, L Pandey - Microbial Enhanced Oil Recovery: Principles and Potential, 243-260, 2021
2021
Core Flooding Studies Using Microbial Systems. P Datta, S Pannu, P Tiwari, L Pandey - Microbial Enhanced Oil Recovery: Principles and Potential, 221-241, 2021
2021
Screening of extremophiles for microbial enhanced oil recovery based on surface active properties. P Datta, P Tiwari, L Pandey - Microbial Enhanced Oil Recovery: Principles and Potential, 101-121, 2021
2021
Microbial Biosurfactants Remediation of Contaminated Soils. P Datta, P Tiwari, LM Pandey - Biodegradation, Pollutants and Bioremediation Principles, 160-173, 2021
2021
Optimum Formulation of Chemical Slug and Core Flooding Studies. R Saha, R Phukan, L Pandey, P Tiwari - Microbial Enhanced Oil Recovery: Principles and Potential, 73-99, 2021
2021
Effect of Reservoir Environmental Conditions and Inherent Microorganisms. P Datta, P Tiwari, L Pandey - Microbial Enhanced Oil Recovery: Principles and Potential, 123-148, 2021
2020
Effects of CO2-foam stability, interfacial tension and surfactant adsorption on oil recovery by alkaline-surfactant-alternated-gas/CO2 flooding. R Phukan, SB Gogoi, P Tiwari - Colloids and Surfaces A: Physicochemical and Engineering Aspects 597, 124799, 2020
2020
Effect of high pressure on nonisothermal pyrolysis kinetics of oil shale and product yield. B Baruah, P Tiwari - Energy & Fuels 34 (12), 15855-15869, 2020
2020
Utilization of nonedible oilseeds in a biorefinery approach with special emphasis on rubber seeds. S Das, AS Reshad, N Bhuyan, D Sut, P Tiwari, VV Goud, R Kataki - Waste Biorefinery, 311-336, 2020
2020
Characterisation of reservoir rock and fluids for CO2 foam enhanced oil recovery application. R Phukan, SB Gogoi, P Tiwari - Advances in Petroleum Technology, 121-145, 2020
2019
Thermal degradation study of waste polyethylene terephthalate (PET) under inert and oxidative environments. P Das, P Tiwari - Thermochimica Acta 679, 178340, 2019
2019
Impact of natural surfactant (reetha), polymer (xanthan gum), and silica nanoparticles to enhance heavy crude oil recovery. R Saha, RVS Uppaluri, P Tiwari - Energy & Fuels 33 (5), 4225-4236, 2019
2019
Production of novel rhamnolipids via biodegradation of waste cooking oil using Pseudomonas aeruginosa MTCC7815. S Sharma, P Datta, B Kumar, P Tiwari, LM Pandey - Biodegradation 30 (4), 301-312, 2019
2019
Optimization of Immiscible Alkaline-Surfactant-Alternated-Gas/CO2 Flooding in an Upper Assam Oilfield. R Phukan, S Borgohain Gogoi, P Tiwari, R Singh Vadhan - SPE Western regional meeting, D041S017R003, 2019
2018
Valorization of packaging plastic waste by slow pyrolysis. P Das, P Tiwari - Resources, Conservation and Recycling 128, 69-77, 2018
2018
The effect of slow pyrolysis on the conversion of packaging waste plastics (PE and PP) into fuel. P Das, P Tiwari - Waste Management 79, 615-624, 2018
2018
Isolation and characterization of biosurfactant producing and oil degrading Bacillus subtilis MG495086 from formation water of Assam oil reservoir and its suitability for …. P Datta, P Tiwari, LM Pandey - Bioresource technology 270, 439-448, 2018
2018
Silica nanoparticle assisted polymer flooding of heavy crude oil: emulsification, rheology, and wettability alteration characteristics. R Saha, RVS Uppaluri, P Tiwari - Industrial & Engineering Chemistry Research 57 (18), 6364-6376, 2018
2018
Effects of interfacial tension, oil layer break time, emulsification and wettability alteration on oil recovery for carbonate reservoirs. R Saha, RVS Uppaluri, P Tiwari - Colloids and Surfaces A: Physicochemical and Engineering Aspects 559, 92-103, 2018
2018
Chemical Induced Enhanced Oil Recovery. P Tiwari
2018
Enhanced oil recovery by alkaline‑surfactant‑alternated‑gas/CO. R Phukan, SB Gogoi, P Tiwari
2018
Silica assisted polymer flooding to enhance residual oil recovery. R Saha, R Uppaluri, P Tiwari - Abstracts of Papers of The American Chemical Society 256, 2018
2017
Thermal degradation kinetics of plastics and model selection. P Das, P Tiwari - Thermochimica Acta 654, 191-202, 2017
2017
Effect of mineralogy on the adsorption characteristics of surfactant—Reservoir rock system. R Saha, RVS Uppaluri, P Tiwari - Colloids and Surfaces A: Physicochemical and Engineering Aspects 531, 121-132, 2017
2017
Thermal degradation kinetic study of rubber seed oil and its methyl esters under inert atmosphere. AS Reshad, P Tiwari, VV Goud - Energy & Fuels 31 (9), 9642-9651, 2017
2017
Biofuels: Production and future properties. AS Reshad, P Tiwari, VV Goud - by Singh, RS, Pandey, A., Gnansounou, E., CRC Press, Taylor & Francis …, 2017
2016
Study of reversible kinetic models for alkali-catalyzed Jatropha curcas transesterification. P Tiwari, S Garg - Biomass Conversion and Biorefinery 6 (1), 61-70, 2016
2016
Production of biodiesel from renewable resources. AS Reshad, P Tiwari, VV Goud - Biofuels, 235-254, 2016
2016
Stokesian Dynamics Simulation for Particulate Suspensions Flowing through Y-Shaped Bifurcating Channel. M Mallela, P Tiwari, A Singh - APS Division of Fluid Dynamics Meeting Abstracts, R26. 005, 2016
2016
Core-Scale Oil Shale Pyrolysis. P Tiwari, J Staten, M Deo - Utah Oil Shale, 191-220, 2016
2016
Experimental and simulation studies for recovery of residual Assam crude oil: Characterization of rock-fluid and screening of chemicals. P Tiwari, R Saha, K Anem, R Uppaluri - 22nd International Congress of Chemical and Process Engineering, CHISA 2016 …, 2016
2015
Extraction of oil from rubber seeds for biodiesel application: Optimization of parameters. AS Reshad, P Tiwari, VV Goud - Fuel 150, 636-644, 2015
2015
Rubber seed oil methyl ester synthesis, engine performance, and emission characteristics of blends. AS Reshad, P Barman, AJ Chaudhari, P Tiwari, V Kulkarni, VV Goud, ... - Energy & Fuels 29 (8), 5136-5144, 2015
2015
Validation Results for Core-Scale Oil Shale Pyrolysis. J Staten, P Tiwari - The University Of Utah, 2015
2015
LOCAL ORGANISING COMMITTEE. G Biswas, V Katiyar, A Kumar, G Pugazhenthi, VV Goud, P Saha, ...
2015
Adsorption of chemicals on minerals during enhanced oil recovery processes. SB Gogoi, K Hazarika, R Phukan, P Tiwari, R Uppaluri, A Rajbongshi - Engineering Sciences and Fundamentals 2015-Core Programming Area at the 2015 …, 2015
2014
Thermal degradation kinetics of poly (3-hydroxybutyrate)/cellulose nanocrystals based nanobiocomposite. P Dhar, SPK Vangala, P Tiwari, A Kumar, V Katiyar - J. Thermodyn. Catal 5 (2), 2014
2013
Characterization of oil shale pore structure before and after pyrolysis by using X-ray micro CT. P Tiwari, M Deo, CL Lin, JD Miller - Fuel 107, 547-554, 2013
2013
Alkali transesterification of linseed oil for biodiesel production. R Kumar, P Tiwari, S Garg - Fuel 104, 553-560, 2013
2012
Compositional and kinetic analysis of oil shale pyrolysis using TGA–MS. P Tiwari, M Deo - Fuel 94, 333-341, 2012
2012
Oil shale pyrolysis: Benchscale experimental studies and modeling. P Tiwari - Department of Chemical Engineering, University of Utah, 2012
2010
Pore scale analysis of oil shale pyrolysis by X-ray CT and LB simulation. CL Lin, JD Miller, CH Hsieh, P Tiwari, MD Deo - 6th World Congress on Industrial Process Tomography, 2010
2010
Evaluation of various shale processing options. K Oh, P Tiwari, M Deo - Oil Shale 27 (3), 229, 2010
2009
Utah Heavy Oil Program. J Bauman, S Burian, M Deo, E Eddings, R Gani, R Goel, CK Huang, ... - The University Of Utah, 2009
2008
Kinetics of oil shale pyrolysis and oil composition. MD Deo, P Tiwari - AIChE Annual Meeting. AIChE 100, 1-11, 2008
2008
Kinetic study of oil shale conversion. P Tiwari, MD Deo, E Eddings - Institute for Clean and Secure Energy, University of Utah, 2008
2008
Yield Behavior of Wax Gel Formation in the Presence of Asphaltenes. K Oh, K Gandhi, P Tiwari, MD Deo - The 2008 Spring National Meeting, 2008
2008
Modeling In-Situ Production of Oil from Oil Shale. MD Deo, CK Huang, P Tiwari - The 2008 Annual Meeting, 2008
2008
Partial Recovery of Wax Gel Strength: Quantitative and Qualitative Analyses. K Oh, M Jemmett, P Tiwari, J Magda, M Deo - The 2008 Annual Meeting, 2008
2006
Transesterification: Modeling and Simulation of Batch Kinetics of Non-edible Vegetable Oils for Biodiesel Production. P Tiwari, R Kumar, S Garg - American Institute of Chemical Engineers, 2006
2000
Problems of the coastal ecosystems in India: A focus on Mumbai.. VK Sharma, P Tiwari, R Jaiswal - Bookwell, New Delhi(India). 287, 2000, 2000
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ENHANCED OIL RECOVERY BY ALKALINE-SURFACTANT ALTERNATED-CO2 FLOODING. R Phukan, SB Gogoi, P Tiwari
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ENHANCED OIL RECOVERY USING ALKALI SURFACTANT POLYMER FLOODING. K Anem, P Tiwari
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Numerical Simulation of concentrated suspension flow in 3D asymmetric T-Junction Bifurcating Channel. MR Mallela, P Tiwari, A Singh
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Pyrolysis of three common plastics and optimization of process parameters targeting value added hydrocarbon products. P Das, P Tiwari
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Microbial Enhanced Oil Recovery. P Tiwari
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EVALUATION OF VARIOUS SHALE PROCESSING OPTIONS; pp. 229–238. K OH, P TIWARI, M DEO
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Effect of Process Variables on Biodiesel Production. D Boipai, P Tiwari, VV Goud
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Investigation of Nozzle Assisted Gas-Solids Fluidized Bed: Experimental and Numerical Studies. JS Rawat, P Tiwari, RK Upadhyay
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Experimental and Numerical Investigation of Gas-Solid Fluidized Bed with Nozzle Spray from Side Wall. JS Rawat, SK Baheshwar, HJ Pant, KT Shenoy, P Tiwari, RK Upadhyay
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To Investigate How Well Industrial Waste Polymer Fibre Performs Physically and Mechanically When Utilised in Concrete Mixtures. P Tiwari, RS Parihar, AK Jha, B Kumar, R Misra
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Waste Plastics: Thermal degradation kinetics and lab scale pyrolysis. P Das, P Tiwari
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ICPHD 2023. A Singh, P Tiwari, S Kumar, A Kakati
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ICPHD 2023. A Singh, P Tiwari, S Kumar, A Kakati
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Solid Phase Flow Dynamics in Circulating Fluidized Bed Riser at Two Scales Using Radiotracer Technique. T Tribedi, P Tiwari, HJ Pant, RK Upadhyay
