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Assessing The Thermodynamic Feasibility Of The Conversion Of Methane Hydrate Into Carbon Dioxide Hydrate In Porous Media
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Book Synopsis Assessing the Thermodynamic Feasibility of the Conversion of Methane Hydrate Into Carbon Dioxide Hydrate in Porous Media by :
Download or read book Assessing the Thermodynamic Feasibility of the Conversion of Methane Hydrate Into Carbon Dioxide Hydrate in Porous Media written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns about the potential effects of rising carbon dioxide levels in the atmosphere have stimulated interest in a number of carbon dioxide sequestration studies. One suggestion is the sequestration of carbon dioxide as clathrate hydrates by injection of carbon dioxide into methane hydrate. Energy-supply research estimates indicate that natural gas hydrates in arctic and sub-seafloor formations contain more energy than all other fossil fuel deposits combined. The simultaneous sequestration of carbon dioxide and the production of methane by injection of carbon dioxide into deposits of natural gas hydrates, if possible, represents a potentially efficient and cost effective option for the sequestration of carbon dioxide. Data in the literature show that the conversion of bulk methane hydrate into carbon dioxide hydrate is thermodynamically favored. These results are not directly applicable to naturally occurring hydrates, because the hydrates in these locations are embedded in sediments. The thermodynamics of any potential conversion of CH4 hydrate to CO2 hydrate will therefore be affected by the size of the pores in which the conversion of CH4 hydrate to CO2 hydrate would take place. We have developed a model that is able to explain and predict equilibria in porous media for any pore size distribution. This model can be used to calculate the heats of dissociation for these hydrates in porous media as a function of pore size and temperature. These results allow for an assessment of the thermodynamic feasibility of converting CH4 hydrate to CO2 hydrate in porous media involving various size pores. We have used this model to derive a simple, explicit relation for the hydrate formation conditions in porous media, as well as the enthalpy of dissociation for these hydrates.
Book Synopsis Journal of Energy & Environmental Research, Vol. 1, No. 1 by :
Download or read book Journal of Energy & Environmental Research, Vol. 1, No. 1 written by and published by DIANE Publishing. This book was released on with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water for Energy and Fuel Production by : Yatish T. Shah
Download or read book Water for Energy and Fuel Production written by Yatish T. Shah and published by CRC Press. This book was released on 2014-05-16 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text describes water's use in the production of raw fuels, as an energy carrier (e.g., hot water and steam), and as a reactant, reaction medium, and catalyst for the conversion of raw fuels to synthetic fuels. It explains how supercritical water is used to convert fossil- and bio-based feedstock to synthetic fuels in the presence and absence of a catalyst. It also explores water as a direct source of energy and fuel, such as hydrogen from water dissociation, methane from water-based clathrate molecules, and more.
Book Synopsis Chemical Energy from Natural and Synthetic Gas by : Yatish T. Shah
Download or read book Chemical Energy from Natural and Synthetic Gas written by Yatish T. Shah and published by CRC Press. This book was released on 2017-03-16 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: Commercial development of energy from renewables and nuclear is critical to long-term industry and environmental goals. However, it will take time for them to economically compete with existing fossil fuel energy resources and their infrastructures. Gas fuels play an important role during and beyond this transition away from fossil fuel dominance to a balanced approach to fossil, nuclear, and renewable energies. Chemical Energy from Natural and Synthetic Gas illustrates this point by examining the many roles of natural and synthetic gas in the energy and fuel industry, addressing it as both a "transition" and "end game" fuel. The book describes various types of gaseous fuels and how are they are recovered, purified, and converted to liquid fuels and electricity generation and used for other static and mobile applications. It emphasizes methane, syngas, and hydrogen as fuels, although other volatile hydrocarbons are considered. It also covers storage and transportation infrastructure for natural gas and hydrogen and methods and processes for cleaning and reforming synthetic gas. The book also deals applications, such as the use of natural gas in power production in power plants, engines, turbines, and vehicle needs. Presents a unified and collective look at gas in the energy and fuel industry, addressing it as both a "transition" and "end game" fuel. Emphasizes methane, syngas, and hydrogen as fuels. Covers gas storage and transport infrastructure. Discusses thermal gasification, gas reforming, processing, purification and upgrading. Describes biogas and bio-hydrogen production. Deals with the use of natural gas in power production in power plants, engines, turbines, and vehicle needs.
Book Synopsis Using Carbon Dioxide to Enhance Recovery of Methane from Gas Hydrate Reservoirs by :
Download or read book Using Carbon Dioxide to Enhance Recovery of Methane from Gas Hydrate Reservoirs written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon dioxide sequestration coupled with hydrocarbon resource recovery is often economically attractive. Use of CO2 for enhanced recovery of oil, conventional natural gas, and coal-bed methane are in various stages of common practice. In this report, we discuss a new technique utilizing CO2 for enhanced recovery of an unconventional but potentially very important source of natural gas, gas hydrate. We have focused our attention on the Alaska North Slope where approximately 640 Tcf of natural gas reserves in the form of gas hydrate have been identified. Alaska is also unique in that potential future CO2 sources are nearby, and petroleum infrastructure exists or is being planned that could bring the produced gas to market or for use locally. The EGHR (Enhanced Gas Hydrate Recovery) concept takes advantage of the physical and thermodynamic properties of mixtures in the H2O-CO2 system combined with controlled multiphase flow, heat, and mass transport processes in hydrate-bearing porous media. A chemical-free method is used to deliver a LCO2-Lw microemulsion into the gas hydrate bearing porous medium. The microemulsion is injected at a temperature higher than the stability point of methane hydrate, which upon contacting the methane hydrate decomposes its crystalline lattice and releases the enclathrated gas. Small scale column experiments show injection of the emulsion into a CH4 hydrate rich sand results in the release of CH4 gas and the formation of CO2 hydrate.
Book Synopsis Recent Advances in Promoters for Gas Hydrate Formation by : Fei Wang
Download or read book Recent Advances in Promoters for Gas Hydrate Formation written by Fei Wang and published by Frontiers Media SA. This book was released on 2021-08-02 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mesoscale Numerical Simulation of Exploiting Methane Hydrate by Carbon Dioxide Replacement in Homogeneous Porous Media by : 謝佩穎
Download or read book Mesoscale Numerical Simulation of Exploiting Methane Hydrate by Carbon Dioxide Replacement in Homogeneous Porous Media written by 謝佩穎 and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Dynamics Simulations to Study the Effect of Fracturing on the Efficiency of CH4 - CO2 Replacement in Hydrates by : Aditaya O. Akheramka
Download or read book Molecular Dynamics Simulations to Study the Effect of Fracturing on the Efficiency of CH4 - CO2 Replacement in Hydrates written by Aditaya O. Akheramka and published by . This book was released on 2018 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Feasible techniques for long-term methane production from naturally occurring gas hydrates are being explored in both marine and permafrost geological formations around the world. Most of the deposits are found in low-permeability reservoirs and the economic and efficient exploitation of these is an important issue. One of the techniques gaining momentum in recent years is the replacement of CH4-hydrates with CO2-hydrates. Studies have been performed, at both laboratory and field based experimental and simulation scale, to evaluate the feasibility of the in situ mass transfer by injecting CO2 in gaseous, liquid, supercritical and emulsion form. Although thermodynamically feasible, these processes are limited by reaction kinetics and diffusive transport mechanisms. Increasing the permeability and the available surface area can lead to increased heat, mass and pressure transfer across the reservoir. Fracturing technology has been perfected over the years to provide a solution in such low-permeability reservoirs for surface-dependent processes. This work attempts to understand the effects of fracturing technology on the efficiency of this CH4-CO2 replacement process. Simulations are performed at the molecular scale to understand the effect of temperature, initial CO2 concentration and initial surface area on the amount of CH4 hydrates dissociated. A fully saturated methane hydrate lattice is subjected to a uniaxial tensile loading to validate the elastic mechanical properties and create a fracture opening for CO2 injection. The Isothermal Young’s modulus was found to be very close to literature values and equal to 8.25 GPa at 270 K. Liquid CO2 molecules were then injected into an artificial fracture cavity, of known surface area, and the system was equilibrated to reach conditions suitable for CH4 hydrate dissociation and CO2 hydrate formation. The author finds that as the simulation progresses, CH4 molecules are released into the cavity and the presence of CO2 molecules aids in the rapid formation of CH4 nanobubbles. These nanobubbles formed in the vicinity of the hydrate/liquid interface and not near the mouth of the cavity. The CO2 molecules were observed to diffuse into the liquid region and were not a part of the nanobubble. Dissolved gas and water molecules are found to accumulate near the mouth of the cavity in all cases, potentially leading to secondary hydrate formation at longer time scales. Temperatures studied in this work did not have a significant effect on the replacement process. Simulations with varying initial CO2 concentration, keeping the fracture surface area constant, show that the number of methane molecules released is directly proportional to the initial CO2 concentration. It was also seen that the number of methane molecules released increases with the increase in the initial surface area available for mass transfer. On comparing the positive effect of the two parameters, the initial CO2 concentration proved to have greater positive impact on the number of methane molecules released as compared to the surface area. These results provide some insight into the mechanism of combining the two recovery techniques. They lay the groundwork for further work exploring the use of fracturing as a primary kick-off technique prior to CO2 injection for methane production from hydrates.
Book Synopsis Formation of Methane and Carbon Dioxide Hydrates in Bulk and in Porous Media by : Yuanyuan He
Download or read book Formation of Methane and Carbon Dioxide Hydrates in Bulk and in Porous Media written by Yuanyuan He and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Numerical, Experimental and Life Cycle Assessment Methods to the Investigation of Natural Gas Production from Methane Hydrate Deposits Using Carbon Dioxide Clathrate Sequestration by : Annick Blanche Christelle L. Nago
Download or read book Application of Numerical, Experimental and Life Cycle Assessment Methods to the Investigation of Natural Gas Production from Methane Hydrate Deposits Using Carbon Dioxide Clathrate Sequestration written by Annick Blanche Christelle L. Nago and published by . This book was released on 2013 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon Dioxide Capture and Acid Gas Injection by : Ying Wu
Download or read book Carbon Dioxide Capture and Acid Gas Injection written by Ying Wu and published by John Wiley & Sons. This book was released on 2017-04-19 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the sixth volume in a series of books on natural gas engineering, focusing carbon dioxide (CO2) capture and acid gas injection. This volume includes information for both upstream and downstream operations, including chapters on well modeling, carbon capture, chemical and thermodynamic models, and much more. Written by some of the most well-known and respected chemical and process engineers working with natural gas today, the chapters in this important volume represent the most cutting-edge and state-of-the-art processes and operations being used in the field. Not available anywhere else, this volume is a must-have for any chemical engineer, chemist, or process engineer working with natural gas. There are updates of new technologies in other related areas of natural gas, in addition to the CO2 capture and acid gas injection, including testing, reservoir simulations, and natural gas hydrate formations. Advances in Natural Gas Engineering is an ongoing series of books meant to form the basis for the working library of any engineer working in natural gas today. Every volume is a must-have for any engineer or library.
Book Synopsis Measurement of Thermodynamic and Kinetic Data of Carbon Dioxide and Methane Hydrate in the Presence of Polyethylenimine and Sodium Carboxymethyl Cellulose by : 賀宇旋
Download or read book Measurement of Thermodynamic and Kinetic Data of Carbon Dioxide and Methane Hydrate in the Presence of Polyethylenimine and Sodium Carboxymethyl Cellulose written by 賀宇旋 and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Formation Processes of Clathrate Hydrates of Carbon Dioxide and Methane by : Veronica Ruth Blackwell
Download or read book Formation Processes of Clathrate Hydrates of Carbon Dioxide and Methane written by Veronica Ruth Blackwell and published by . This book was released on 1998 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conversion of Carbon Dioxide to Methane for Counting C14 by : G. R. Henning
Download or read book Conversion of Carbon Dioxide to Methane for Counting C14 written by G. R. Henning and published by . This book was released on 1948 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon Dioxide Capture and Conversion by : Sonil Nanda
Download or read book Carbon Dioxide Capture and Conversion written by Sonil Nanda and published by Elsevier. This book was released on 2022-07-28 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Dioxide Capture and Conversion: Advanced Materials and Process provides information about the fundamental principles and recent development of various methods and processes for CO2 mitigation and transformation. Beginning with a brief overview of recent advancements in CO2 capture and valorization technologies, the book elaborates on CO2 capture and conversion by covering nanoporous materials, biomaterials, innovative solvents, advanced membrane technology, nanocatalyst synthesis and design, cutting-edge characterization techniques as well as reaction mechanisms and kinetics. In addition to techno-economic evaluation and life-cycle assessment for CO2 capture and conversion processes, future perspectives, opportunities and current challenges regarding these processes in terms of their industrial applications, are systematically discussed. Carbon Dioxide Capture and Conversion: Advanced Materials and Process is, therefore, an essential resource for academic researchers, postgraduates, scientists, and engineers seeking fundamental knowledge and practical applications for use in their research and development, studies and industrial operations. - Includes recent developments in nanomaterials and advanced processes implemented for CO2 capture and conversion - Contains state-of-the-art CO2 capture and conversion technology written by leading experts - Offers advanced techniques of nanomaterials synthesis, characterization, evaluation, and industrial implementation in a wide range of CO2 capture and conversion processes
Book Synopsis Experimental Study of Methane Hydrate Behavior in Unconsolidated Porous Media by : Tung Vu Tran
Download or read book Experimental Study of Methane Hydrate Behavior in Unconsolidated Porous Media written by Tung Vu Tran and published by . This book was released on 2005 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Methane Gas Hydrate by : Ayhan Demirbas
Download or read book Methane Gas Hydrate written by Ayhan Demirbas and published by Springer Science & Business Media. This book was released on 2010-02-28 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas hydrates represent one of the world’s largest untapped reservoirs of energy and, according to some estimates, have the potential to meet global energy needs for the next thousand years. "Methane Gas Hydrate" examines this potential by focusing on methane gas hydrate, which is increasingly considered a significant source of energy. "Methane Gas Hydrate" gives a general overview of natural gas, before delving into the subject of gas hydrates in more detail and methane gas hydrate in particular. As well as discussing methods of gas production, it also discusses the safety and environmental concerns associated with the presence of natural gas hydrates, ranging from their possible impact on the safety of conventional drilling operations to their influence on Earth’s climate. "Methane Gas Hydrate" is a useful reference on an increasingly popular energy source. It contains valuable information for chemical engineers and researchers, as well as for postgraduate students.
