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151 articles for “Methanation”
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The Effect of Methanol on 512 Methane Hydrate Cage Cluster ¬– A Molecular Dynamics Study
Abstract: Molecular dynamic simulation study of methane hydrate cluster having 27 methane encapsulated pentagonal dodecahedron (512) hydrate cage with and without presence of eight methanol molecules in supercell has been performed to evalute the effect of methanol on the stability and formation of methane hydrate cluster. Methanol is found to act as an effective methane hydrate inhibitor below 30 atm pressure for 240 K and below 90 atm pressure for 250 …
Published in Journal of Petroleum Engineering & Technology · Vol. 4, Issue 2, 2014 · pp. 16–24 Read article
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Heat Transfer and Exergy Analysis of Methane-Air Flame Impinging on Plane Surfaces
Abstract: Exergy and heat flow have been numerically investigated for flame impinging on flat circular plates. The maximum work available when the system is brought to thermodynamic equilibrium state with its surrounding is known as the exergy of a system. This state of equilibrium of the system depends on the pressure, temperature, and composition of environment. Efficiency based on exergy is otherwise known as the second-law efficiency which measures the usefulness …
Published in Recent Trends in Fluid Mechanics · Vol. 9, Issue 1, 2022 · pp. 13–24 Read article
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Persistent Atmospheric and Ecosystem Impacts of Enteric Methane Emissions from Intensive Livestock Production Systems
Abstract: Enteric methane emissions from intensive livestock production systems exert a significant long-lasting influence on atmospheric stability and ecosystem integrity. Recent observations confirm that global methane emissions continued to rise through the early 2020s, with total emissions exceeding 620 teragrams per year by 2024, driven by expanding ruminant production and associated feed systems. Anthropogenic sources accounted for more than 330 teragrams per year, reflecting sustained growth in agricultural and fossil fuel …
Published in International Journal of Atmosphere · Vol. 2, Issue 2, 2025 · pp. 18–38 Read article
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Review of application of CFD methodologies used for methane enrichment of natural gas
Abstract: Methane is a major constituent of biogas which contains about 60 – 70% of total volume. For utilization of biogas as fuel, its calorific value is a limitation which can be improved by removing impurities such as CO2, H2S, and moisture. Various techniques are available for the removal of impurities. This paper aims to explore various methodologies in CFD which are used to simulate and find out the factors that …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 44–47 Read article
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Integration of Photo-catalysis of Ultraviolet Rays for Chlorination Process of Methane Conversion into Mono-, Di-, Tri- and Tetra-Chloromethane
Abstract: Alkanes the most basic of all organic compounds undergo very few reactions due to its stability. One of the reactions is halogenation, or the substitution of single hydrogen on the alkane for a single halogen to form a haloalkanes. Example of this halogenation of alkanes is the chlorination processes. It is well established that methane-chlorine mixture undergoes substitution reaction at the temp of about 400ºC and presence of light without …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 3, 2020 · pp. 8–10 Read article
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Modelling and Evaluation of Kinetics of Methane Chlorination using Matlab Techniques
Abstract: The chlorination of methane follows series-consecutive reaction mechanism to yield the chloromethanes products. The equation of reaction comprised of four consecutive step chemical reaction equations. The kinetics model for chlorination of methane into monochloromethane, dichloromethane, trichloromethane and tetrachloromethane was developed from the chemical reaction equations. In the elementary rate equation, the concentration of chlorine was assumed to be in excess, reducing the model to first order kinetics. The developed model …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 2, 2020 · pp. 31–36 Read article
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Predicting Rate Equation for the Synthesis of Octadec-9-Enoic Acid Methyl Esters by the Methanolysis of Pongamia Pinnata Triglycerides Using Sono Reactor
Abstract: In the present work, octadec-9-enoic acid methyl esters are synthesized from pongamia pinnata oil using methanolysis in sono reactor. The rate equation is predicted for the methanolysis reaction. The produced methyl esters from pongamia pinnata oil confirmed to ASTM D6751 standards. Fourier Transform Infrared Analysis and Gas Chromatography Mass Spectrometry were used to characterise the methyl esters. The rate is dependent greatly on methanol concentration, and then on catalyst concentration …
Published in Journal of Polymer & Composites · Vol. 9, Issue 3, 2021 · pp. 45–55 Read article
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Variation in Ozone at Night in Barrow, Alaska, during Different seasons, and its Relationship to Methane at Different Pressures
Abstract: The study is focus on the investigation of the night-time seasonal variability of ozone (O₃) at Barrow, Alaska, and also it examines its association with methane (CH₄) concentrations at different pressure levels along with solar flux variations on the basis of eighteen years (2003–2020) of observational data, including ground-based ozone measurements, satellite-derived methane data at 100, 200, 300, 400, and 500 hPa, and solar flux (F10.7) values. For finding the …
Published in International Journal of Atmosphere · Vol. 3, Issue 1, 2026 · pp. 44–53 Read article
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Synthesis of Biodiesel with Methanol Recovery in Reactive Distillation
Abstract: In the present study, biodiesel was synthesized from waste vegetable oil, methanol and catalyst. The present work investigates the use of reactive distillation for continuous production and separation of biodiesel with recovery of excess methanol as top product of acceptable purity. In order to determine the best conditions for biodiesel production by reactive distillation, process parameters such as molar ratio of oil to alcohol, reaction temperature, catalyst concentration (0.5–1.5 wt …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 1, 2016 · pp. 26–31 Read article
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Effect of catalyst and methanol on synthesis of methyl esters from used cooking oil
Abstract: Due to depletion in the fossil fuels and the increase of energy usage, the rapid depletion of fossil fuel is accelerated. Therefore, using renewable energy is a key solution to the problem of fossil fuel depletion. There are several resources of renewable energy like geothermal energy, solar energy, and biofuels. Biodiesel is a fatty acid alkyl ester made from renewable resources such as used cooking oil. The attractiveness of biodiesel …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 1, 2021 · pp. 42–51 Read article
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Dodecahedron Methane Hydrate Cage Structure – An Ab initio Study
Abstract: Comparative study of 512clathrate hydrate cage having different numbers of methane guest molecules encapsulation is carried out by calculating interaction energy, encapsulation energy and thermo-chemical stability parameters using density functional theory-based calculation with B3LYP functional and 6-31G(d) basis set. Nuclear magnetic resonance spectroscopy(NMR), Infrared spectroscopy (IR spectroscopy) and Raman spectroscopy of empty and methane encapsulated 512clathrate hydrate cages, change in Gibbs free energy and methane hydrate formation enthalpy are predicted …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 51–64 Read article
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Inhibition of Growth of Selected Bacterial Species Through the Use of Methanolic Maceratives of Black Soldier Fly Pre-Pupae
Abstract: The attempt is dealing with of analysis of effect of maceratives of prepupal stages of black soldier fly (BSF) (Hermetia illuncens L.) in methanol on the inhibition of the growth of selected bacterial species. The bacterial species used for the study include: Salmonella typhimurium (L.); Escherichia coli (L.); Pseudomonas aeruginosa (L.); Bacillus cereus (L); Bacillus subtilis (L); Streptococcus cremoris (L); Streptococcus faecalis (L); Staphylococcus aureus (L); Klebsiella pneumoniae (L); Salmonella …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 2, 2021 · pp. 30–44 Read article
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Comparative Parametric Investigation of Methane, Propane, Butane, and Gasoline on Single Cylinder SI Engine to Improve its Performance and Emission Characteristics
Abstract: This paper presents the single cylinder SI engine based generator. The focus of this study is to use various alternative fuels like LPG (Propane), CNG (Methane), butane and comparing their performances with conventional fuel gasoline for SI engine. This study investigates that when using alternative fuels, the most prominent fuel in performance is methane, because performance is comparatively increasing and emissions are reduced. So, the methane (CH4) fuel is efficient, …
Published in Journal of Petroleum Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 1–10 Read article
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Methane Recovery From Gas Hydrate By Cool Frack Method
Abstract: Methane in Gas hydrates are the most believed energy source for the future. These are solid crystalline ice with hydrogen bonded water molecules, which traps the guest molecules such as methane, propane, H2S, etc., in its cages. It commonly found in permafrost and deep oceanic sediments and occur in oil and gas pipelines. The extraction of methane from gas hydrates without any geo-hazard and economic efficient is what still a …
Published in Journal of Petroleum Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 32–39 Read article
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Theoretical Prediction of Maximum Number of Methane Molecule Accommodation in Unit Cages of S-I Clathrate Structure
Abstract: Density Functional Theory (DFT) based simulations have been performed to determine maximum possible number of methane molecule accommodation in unit cages of methane hydrate structure-I (S-I). Interaction energy, encapsulation energy and incremental encapsulation energy are calculated using B3LYP functional and 6-31+G(d) basis set. Nuclear magnetic resonance and Raman spectroscopy of one methane encapsulated are predicted at B3LYP/6-31G(d) level for 51262 hydrate cage. Maximum one methane molecule accommodation both in 512 …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 116–122 Read article
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H2 Production by Methanol Steam Reforming over Copper Impregnated Anodized Aluminum Oxide (AAO)
Abstract: Hydrogen production by methanol steam reforming (MSR) is easy and simple as compared to other reforming methods using fossil fuels such as methane steam reforming. The catalysts for MSR are well developed and available commercially. When constructing a small or micro reformer, the catalyst often needs to be coated on the wall of the metal substrate. In this case, the bonding between the metal surface and the catalyst layer must …
Published in Journal of Catalyst & Catalysis · Vol. 1, Issue 1, 2014 · pp. 23–28 Read article
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Quasi-Dimensional Thermodynamic Performance and Emission Modelling for Dual-Fuel SI Engine Operation Using Waste-Based Producer Gas and Methane
Abstract: Rising energy crisis and urgent need for better waste-handling techniques have gained significant attention. Integration of wastes-to-wealth and Green Energy evolution techniques are prime sustainable measures towards countering this menace. Moreover, Internal Combustion (IC) engines are significant energy consumers and their emissions play a major factor in global warming and ecological obliteration. Concerning these aspects, investigations should strive at emissions minimization and reutilization of low-impact industrial byproducts. Thus, using methane …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 446–458 Read article
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Bayesian Optimization–Driven Operating Parameter Tuning for Maximizing Methane Yield in Anaerobic Digestion
Abstract: To achieve maximum methane production in an anaerobic digestion (AD) process, a combination of various operational parameters must be tuned nonlinearly in the digestion ecosystem. The conventional trial and error optimization methods are slow, resource consuming, and in most instances, cannot model the intricate parameter interaction in biogas production. The current work introduces a Bayesian Optimization-based model to optimize the set of conditions to maximize the level of methane produced …
Published in International Journal of Energy and Thermal Applications · Vol. 4, Issue 1, 2026 · pp. 1–8 Read article
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The Effect of Dynamics and Mass Transfer Limitation on the Kinetic Growth Rate of Methane Gas Hydrates
Abstract: Hydrate management aims to prevent impediments to fluid flow in pipes caused by hydrate deposition. To achieve this goal effectively, a comprehensive understanding of the thermodynamics and kinetics of hydrate formation is essential for predicting their equilibrium conditions, quantifying the amount of deposition, and estimating the associated risk. Hydrate growth studies are a relatively new field, and independent laboratory experiments have shown that hydrate growth is controlled by heat transfer, …
Published in Journal of Petroleum Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 76–84 Read article
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Contemplation of Coal Bed Methane in Petroleum Industry
Abstract: The hunger for energy has been on its peak since industrialization. The human race has been trying all hook and crook in order to discover new sources of energy. In today’s world, a minor portion of the energy requirement basket is being filled up by unconventional non-hydrocarbon resources but still the majority of it is filled by unconventional and conventional hydrocarbon resources. The conventional hydrocarbon resources are oil and natural …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 23–26 Read article