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Special Issue "Methane Hydrate Research and Development"

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: closed (15 April 2017)

Special Issue Editors

Guest Editor
Prof. Dr. Richard B. Coffin

Department of Physical and Environmental Sciences, Texas A&M University - Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78421, USA
Website | E-Mail
Interests: variation in methane hydrate abundance in world ocean coastal regions; shallow sediment methane cycling; methane flux to the atmosphere; elemental isotope analyses
Guest Editor
Prof. Dr. Bjørn Kvamme

Department of Physics and Technology, University of Bergen, 5020 Bergen, Norway
Website | E-Mail
Interests: thermodynamics and statistical thermodynamics; gas hydrates stability and kinetics; polar solutions and electrolyte solutions; kinetics of phase transitions; emulsion fundamentals; fundamentals of adsorption and practical applications
Guest Editor
Prof. Dr. Stephen Masutani

Hawaii Natural Energy Institute, Honolulu, HI 96822, USA
Website | E-Mail
Interests: thermochemistry; kinetics; transport phenomena; hydrates; multi-phase flows; renewable energy; carbon sequestration
Guest Editor
Prof. Dr. Norio Tenma

Research Institute of Energy Frontier, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
Website | E-Mail
Interests: numerical simulation; geo-mechanics; methane hydrate; geothermal
Guest Editor
Assoc. Prof. Dr. Tsutomu Uchida

Department of Applied Science and Engineering, School of Engineering, Hokkaido University, Japan
Website | E-Mail
Interests: ice; water; gas hydrate; biophysics; crystal

Special Issue Information

Dear Colleagues,

A special issue of the open access journal Energies is planned on gas hydrate research. A discounted Article Processing Charge will be offered to all participants of past International Workshops on Methane Hydrate Research and Development, including Fiery Ice 2016.

Authors are invited to submit manuscripts for peer review on a broad range of topics related to gas hydrates including (but not limited to):

  • resource assessment;
  • policy;
  • exploration;
  • reservoir modeling;
  • production modeling;
  • environmental studies;
  • fundamental laboratory investigations; and
  • hydrate thermodynamics and kinetics.

Prof. Richard B. Coffin
Prof. Dr. Bjørn Kvamme
Prof. Dr. Stepehn Masutani
Prof. Dr. Norio Tenma
Assoc. Prof. Dr. Tsutomu Uchida
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1500 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

 

Keywords

  • Gas hydrates
  • Hydrate thermodynamics and kinetics.
  • Fiery Ice
  • Climate change
  • Coastal stability mining
  • Resource assessment
  • Policy
  • Exploration
  • Reservoir modeling
  • Production modeling
  • Environmental studies
  • Fundamental laboratory investigations
  • Hydrate thermodynamics and kinetics

Published Papers (9 papers)

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Research

Jump to: Review

Open AccessArticle Hydrogen Storage Capacity of Tetrahydrofuran and Tetra-N-Butylammonium Bromide Hydrates Under Favorable Thermodynamic Conditions
Energies 2017, 10(8), 1225; doi:10.3390/en10081225
Received: 2 August 2017 / Revised: 11 August 2017 / Accepted: 14 August 2017 / Published: 17 August 2017
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Abstract
An experimental study was conducted to evaluate the feasibility of employing binary hydrates as a medium for H2 storage. Two reagents, tetrahydrofuran (THF) and tetra-n-butylammonium bromide (TBAB), which had been reported previously to have potential to form binary hydrates with
[...] Read more.
An experimental study was conducted to evaluate the feasibility of employing binary hydrates as a medium for H2 storage. Two reagents, tetrahydrofuran (THF) and tetra-n-butylammonium bromide (TBAB), which had been reported previously to have potential to form binary hydrates with H2 under favorable conditions (i.e., low pressures and high temperatures), were investigated using differential scanning calorimetry and Raman spectroscopy. A scale-up facility was employed to quantify the hydrogen storage capacity of THF binary hydrate. Gas chromatography (GC) and pressure drop analyses indicated that the weight percentages of H2 in hydrate were less than 0.1%. The major conclusions of this investigation were: (1) H2 can be stored in binary hydrates at relatively modest pressures and temperatures which are probably feasible for transportation applications; and (2) the storage capacity of H2 in binary hydrate formed from aqueous solutions of THF over a concentration range extending from 2.78 to 8.34 mol % and at temperatures above 263 K and pressures below 11 MPa was <0.1 wt %. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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Open AccessArticle Utilizing Non-Equilibrium Thermodynamics and Reactive Transport to Model CH4 Production from the Nankai Trough Gas Hydrate Reservoir
Energies 2017, 10(7), 1064; doi:10.3390/en10071064
Received: 15 April 2017 / Revised: 9 July 2017 / Accepted: 18 July 2017 / Published: 22 July 2017
PDF Full-text (3231 KB) | HTML Full-text | XML Full-text
Abstract
The ongoing search for new sources of energy has brought natural gas hydrate (NGH) reservoirs to the forefront of attention in both academia and the industry. The amount of gas reserves trapped within these reservoirs surpasses all of the conventional fossil fuel sources
[...] Read more.
The ongoing search for new sources of energy has brought natural gas hydrate (NGH) reservoirs to the forefront of attention in both academia and the industry. The amount of gas reserves trapped within these reservoirs surpasses all of the conventional fossil fuel sources explored so far, which makes it of utmost importance to predict their production potential and safety. One of the challenges facing those attempting to analyse their behaviour is that the large number of involved phases make NGHs unable to ever reach equilibrium in nature. Field-scale experiments are expensive and time consuming. However, computer simulations have now become capable of modelling different gas production scenarios, as well as production optimization analyses. In addition to temperature and pressure, independent thermodynamic parameters for hydrate stabilization include the hydrate composition and concentrations for all co-existing phases. It is therefore necessary to develop and implement realistic kinetic models accounting for all significant routes for dissociation and reformation. The reactive transport simulator makes it easy to deploy nonequilibrium thermodynamics for the study of CH4 production from hydrate-bearing sediments by considering each hydrate-related transition as a separate pseudo reaction. In this work, we have used the expanded version of the RetrasoCodeBright (RCB) reactive transport simulator to model exploitation of the methane hydrate (MH) reservoir located in the Nankai Trough, Japan. Our results showed that higher permeabilities in the horizontal direction dominated the pressure drop propagation throughout the hydrate layers and affected their hydrate dissociation rates. Additionally, the comparison of the vertical well versus the horizontal well pattern indicated that hydrate dissociation was slightly higher in the vertical well scenario compared to the horizontal. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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Open AccessArticle Design of Ecological CO2 Enrichment System for Greenhouse Production using TBAB + CO2 Semi-Clathrate Hydrate
Energies 2017, 10(7), 927; doi:10.3390/en10070927
Received: 15 April 2017 / Revised: 1 June 2017 / Accepted: 29 June 2017 / Published: 4 July 2017
PDF Full-text (1253 KB) | HTML Full-text | XML Full-text
Abstract
This paper proposes an innovative CO2 enrichment system for crop production under a controlled greenhouse environment by means of tetra-n-butylammonium bromide (TBAB) + CO2 semi-clathrate hydrate (SC). In this system, CO2 is captured directly from exhaust gas from
[...] Read more.
This paper proposes an innovative CO2 enrichment system for crop production under a controlled greenhouse environment by means of tetra-n-butylammonium bromide (TBAB) + CO2 semi-clathrate hydrate (SC). In this system, CO2 is captured directly from exhaust gas from a combustion heater at night, which can be used for stimulating photosynthesis of crops in greenhouses during daytime. Although the gas capacity of TBAB + CO2 SC is less than that of CO2 gas hydrate, it is shown that TBAB + CO2 SC can store CO2 for CO2 enrichment in crop production even under moderate pressure conditions (<1.0 MPa) at 283 K. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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Open AccessArticle Natural Gas Hydrate as a Storage Mechanism for Safe, Sustainable and Economical Production from Offshore Petroleum Reserves
Energies 2017, 10(6), 828; doi:10.3390/en10060828
Received: 16 April 2017 / Revised: 6 June 2017 / Accepted: 11 June 2017 / Published: 20 June 2017
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Abstract
Century Fathom presents an innovative process to utilize clathrate hydrates for the production, storage and transportation of natural gas from off-shore energy reserves in deep ocean environments. The production scheme was developed by considering the preferred state of natural gas in the deep
[...] Read more.
Century Fathom presents an innovative process to utilize clathrate hydrates for the production, storage and transportation of natural gas from off-shore energy reserves in deep ocean environments. The production scheme was developed by considering the preferred state of natural gas in the deep ocean and addressing the hazards associated with conventional techniques to transport natural gas. It also is designed to mitigate the significant shipping cost inherent with all methods. The resulting proposed scheme restrains transport in the hydrate form to the ocean and does not attempt to supply energy to the residential consumer. Instead; the target recipients are industrial operations. The resulting operational concept is intrinsically safer by design; environmentally sustainable and significantly cost-effective compared with currently proposed schemes for the use of natural gas hydrates and has the potential to be the optimal solution for new production of reserves; depending on the distance to shore and capacity of the petroleum reserve. A potential additional benefit is the byproduct of desalinated water. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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Open AccessArticle A Feasibility Study on Hydrate-Based Technology for Transporting CO2 from Industrial to Agricultural Areas
Energies 2017, 10(5), 728; doi:10.3390/en10050728
Received: 15 April 2017 / Revised: 16 May 2017 / Accepted: 17 May 2017 / Published: 20 May 2017
Cited by 1 | PDF Full-text (1361 KB) | HTML Full-text | XML Full-text
Abstract
Climate change caused by global warming has become a serious issue in recent years. The main purpose of this study was to evaluate the effectiveness of the above system to quantitatively supply CO2 or CO2 hydrate from industrial to agricultural areas.
[...] Read more.
Climate change caused by global warming has become a serious issue in recent years. The main purpose of this study was to evaluate the effectiveness of the above system to quantitatively supply CO2 or CO2 hydrate from industrial to agricultural areas. In this analysis, several transportation methods, namely, truck, hydrate tank lorry, and pipeline, were considered. According to this analysis, the total CO2 supply costs including transportation ranged from 15 to 25 yen/kg-CO2 when the transportation distance was 50 km or less. The cost of the hydrate-based method increased with the transport distance in contrast to the liquefied CO2 approach. However, the technology of supplying CO2 hydrate had merit by using a local cooling technique for cooling specific parts of agricultural products. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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Open AccessArticle Methane Hydrate Formation in Marine Sediment from South China Sea with Different Water Saturations
Energies 2017, 10(4), 561; doi:10.3390/en10040561
Received: 22 December 2016 / Revised: 28 March 2017 / Accepted: 5 April 2017 / Published: 20 April 2017
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Abstract
The kinetics of methane hydrate formation in marine sediments with different water saturations are important to assess the feasibility of the hydrate production and understand the process of the secondary hydrate formation in the gas production from hydrate reservoir. In this paper, the
[...] Read more.
The kinetics of methane hydrate formation in marine sediments with different water saturations are important to assess the feasibility of the hydrate production and understand the process of the secondary hydrate formation in the gas production from hydrate reservoir. In this paper, the behaviors of methane hydrate formation in marine sediments from the South China Sea at different water saturation levels were experimentally studied in isobaric conditions. The marine sediments used in the experiments have the mean pore diameter of 12.178 nm, total pore volume of 4.997 × 10−2 mL/g and surface area of 16.412 m2/g. The volume fraction of water in the marine sediments ranges from 30% to 50%. The hydrate formation rate and the final water conversion increase with the decrease of the formation temperature at the water saturation of 40%. At the same experimental conditions, the hydrate formation rate decreases with the increase of the water saturation from 40% to 50% due to the reduction of the gas diffusion speed. At the water saturation of 30%, the hydrate formation rate is lower than that at the water saturation of 40% due to the effect of the equilibrium hydrate formation pressure, which increases with the decrease of the water saturation. The final water conversion is shown to increase with the increase of the water saturation, even the formation process at higher water did not end. The experiments at low water saturation show a better repeatability than that at high water saturation. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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Open AccessArticle Using a Reactive Transport Simulator to Simulate CH4 Production from Bear Island Basin in the Barents Sea Utilizing the Depressurization Method†
Energies 2017, 10(2), 187; doi:10.3390/en10020187
Received: 31 December 2016 / Accepted: 4 February 2017 / Published: 8 February 2017
Cited by 1 | PDF Full-text (2167 KB) | HTML Full-text | XML Full-text
Abstract
The enormous amount of methane stored in natural gas hydrates (NGHs)worldwide offers a significant potential source of energy. NGHs will be generally unable to reach thermodynamic equilibrium at their in situ reservoir conditions due to the number of active phases involved. Lack of
[...] Read more.
The enormous amount of methane stored in natural gas hydrates (NGHs)worldwide offers a significant potential source of energy. NGHs will be generally unable to reach thermodynamic equilibrium at their in situ reservoir conditions due to the number of active phases involved. Lack of reliable field data makes it difficult to predict the production potential and safety of CH4 production from NGHs. While the computer simulations will never be able to replace field data, one can apply state-of-the-artmodellingtechniquestoevaluateseveralpossiblelong-termscenarios. Realistic kinetic models for hydrate dissociation and reformation will be required, as well as analysis of all phase transition routes. This work utilizes our in-house extension of RetrasoCodeBright (RCB), a reactive transport simulator, to perform a gas hydrate production case study of the Bjørnøya (Bear Island) basin, a promising field with very limited geological data reported by available field studies. The use of a reactive transport simulator allowed us to implement non-equilibrium thermodynamics for analysisofCH4 production from the gas hydrates by treating each phase transition involving hydrates as a pseudo reaction. Our results showed a rapid propagation of the pressure drop through the reservoir following the imposition of pressure drawdown at the well. Consequently, gas hydrate dissociation and CH4 production began in the early stages of the five-year simulation period. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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Open AccessArticle Gas Hydrate Growth Kinetics: A Parametric Study
Energies 2016, 9(12), 1021; doi:10.3390/en9121021
Received: 11 August 2016 / Revised: 28 October 2016 / Accepted: 28 November 2016 / Published: 5 December 2016
Cited by 2 | PDF Full-text (4314 KB) | HTML Full-text | XML Full-text
Abstract
Gas hydrate growth kinetics was studied at a pressure of 90 bars to investigate the effect of temperature, initial water content, stirring rate, and reactor size in stirred semi-batch autoclave reactors. The mixing energy during hydrate growth was estimated by logging the power
[...] Read more.
Gas hydrate growth kinetics was studied at a pressure of 90 bars to investigate the effect of temperature, initial water content, stirring rate, and reactor size in stirred semi-batch autoclave reactors. The mixing energy during hydrate growth was estimated by logging the power consumed. The theoretical model by Garcia-Ochoa and Gomez for estimation of the mass transfer parameters in stirred tanks has been used to evaluate the dispersion parameters of the system. The mean bubble size, impeller power input per unit volume, and impeller Reynold’s number/tip velocity were used for analyzing observed trends from the gas hydrate growth data. The growth behavior was analyzed based on the gas consumption and the growth rate per unit initial water content. The results showed that the growth rate strongly depended on the flow pattern in the cell, the gas-liquid mass transfer characteristics, and the mixing efficiency from stirring. Scale-up effects indicate that maintaining the growth rate per unit volume of reactants upon scale-up with geometric similarity does not depend only on gas dispersion in the liquid phase but may rather be a function of the specific thermal conductance, and heat and mass transfer limitations created by the limit to the degree of the liquid phase dispersion is batched and semi-batched stirred tank reactors. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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Review

Jump to: Research

Open AccessReview Review of Fundamental Properties of Gas Hydrates: Breakout Sessions of the International Workshop on Methane Hydrate Research and Development
Energies 2017, 10(6), 747; doi:10.3390/en10060747
Received: 29 March 2017 / Revised: 29 March 2017 / Accepted: 18 April 2017 / Published: 25 May 2017
PDF Full-text (950 KB) | HTML Full-text | XML Full-text
Abstract
The International Workshop on Methane Hydrate (MH) Research and Development (the Fiery Ice Workshop) began in 2001 with the goal of promoting laboratory and field research collaborations and providing a forum to share new knowledge on MH pertaining to coastal stability, climate change,
[...] Read more.
The International Workshop on Methane Hydrate (MH) Research and Development (the Fiery Ice Workshop) began in 2001 with the goal of promoting laboratory and field research collaborations and providing a forum to share new knowledge on MH pertaining to coastal stability, climate change, and energy. Ten workshops have been held over the past 15 years in different countries. Each workshop has included presentations on national programs and policy areas, and new research, along with breakout sessions that focused on current key topics. Two or three concurrent breakout sessions were conducted twice during each workshop. In this paper, we review the breakout sessions on hydrate fundamental properties with the goal of identifying the major accomplishments and changes in hydrate science and engineering related to determining fundamental MH properties over the past 15 years. Full article
(This article belongs to the Special Issue Methane Hydrate Research and Development)
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