scholarly journals Ultra-Rapid Uptake and Highly Stable Storage of Methane as Combustible Ice

Author(s):  
Gaurav Bhattacharjee ◽  
Marcus N. Goh ◽  
Sonia E.K. Arumuganainar ◽  
Zhang Ye ◽  
Praveen Linga

<p>The continuously increasing trend of natural gas (NG) consumption due to its clean nature and abundant availability indicates an inevitable transition to an NG-dominated economy. Solidified natural gas (SNG) storage via combustible ice or clathrate hydrates presents an economically sound prospect, promising high volume density and long-term storage. Herein, we establish 1,3-dioxolane (DIOX) as a highly efficient dual-action (thermodynamic and kinetic promoter) additive for the formation of clathrate (methane sII) hydrate. By synergistically combining a small concentration (300 ppm) of the kinetic promoter L-tryptophan with DIOX, we further demonstrated the ultra-rapid formation of hydrates with a methane uptake of 83.81 (0.77) volume of gas/volume of hydrate (v/v) within 15 min. To the best of our knowledge, this is the fastest reaction time reported to date for sII hydrates related to SNG technology and represents a 147% increase in the hydrate formation rate compared to the standard water–DIOX system. Mixed methane–DIOX hydrates in pelletized form also exhibited incredible stability when stored at atmospheric pressure and moderate temperature of 268.15 K, thereby showcasing the potential to be industrially applicable for the development of a large-scale NG storage system.</p>

2020 ◽  
Author(s):  
Marcus N. Goh ◽  
Gaurav Bhattacharjee ◽  
Sonia E.K. Arumuganainar ◽  
Praveen Linga

<p>Ever-increasing natural gas (NG) consumption trends due to its cleanest tag and abundant availability point towards an inevitable transition into an NG dominated economy. Solidified Natural Gas (SNG) storage via combustible ice or clathrate hydrates presents an economically sound prospect, promising high volume density, and long-term storage. Here we establish 1,3-dioxolane (DIOX), as a highly efficient dual-action (thermodynamic and kinetic promoter) additive for clathrate (methane sII) hydrate formation. By synergistically combining a small concentration (300 ppm) of kinetic promoter L-tryptophan with DIOX, we further demonstrate ultra-rapid hydrate formation with a methane uptake of 83.81 (±0.77) volume of gas/volume of hydrate (v/v) within 15 minutes. To the best of our knowledge, this is the fastest reaction time ever reported for sII hydrates related to SNG technology and represents a 147% increase in the hydrate formation rate compared to the standard water-DIOX system. Mixed methane-DIOX hydrates in pelletized form also exhibit incredible stability when stored at atmospheric pressure and moderate temperature of 268.15 K, thereby showcasing potential to be industrially adoptable for the development of a large-scale NG storage system.</p>


2020 ◽  
Vol 13 (12) ◽  
pp. 4946-4961
Author(s):  
Gaurav Bhattacharjee ◽  
Marcus N. Goh ◽  
Sonia E. K. Arumuganainar ◽  
Ye Zhang ◽  
Praveen Linga

Solidified natural gas (SNG) storage via combustible ice or clathrate hydrates presents an economically sound prospect, promising high volume density, and safe long-term storage.


2021 ◽  
Vol 230 ◽  
pp. 01006
Author(s):  
Teimuraz Davitashvili

Nowadays, when the emphasis is on alternative means of energy, natural gas is still used as an efficient and convenient fuel both in the home (for heating buildings and water, cooking, drying and lighting) and in industry together with electricity. In industrial terms, gas is one of the main sources of electricity generation in both developed and developing countries. Pipelines are the most popular means of transporting natural gas domestically and internationally. The main reasons for the constipation of gas pipelines are the formation of hydrates, freezing of water plugs, pollution, etc. It is an urgent task to take timely measures against the formation of hydrates in the pipeline. To stop gas hydrate formation in gas transporting pipelines, from existing methods the mathematical modelling with hydrodynamic method is more acceptable. In this paper the problem of prediction of possible points of hydrates origin in the main pipelines taking into consideration gas non-stationary flow and heat exchange with medium is studied. For solving the problem the system of partial differential equations governing gas non-stationary flow in main gas pipeline is investigated. The problem solution for gas adiabatic flow is presented.


2016 ◽  
Vol 290 ◽  
pp. 161-173 ◽  
Author(s):  
Hari Prakash Veluswamy ◽  
Alison Jia Hui Wong ◽  
Ponnivalavan Babu ◽  
Rajnish Kumar ◽  
Santi Kulprathipanja ◽  
...  

2013 ◽  
Vol 275-277 ◽  
pp. 2266-2271 ◽  
Author(s):  
Lin Zhang ◽  
En Tian Li ◽  
Shu Li Wang ◽  
Shi Dong Zhou

Natural gas hydrate has huge gas storage capacity, natural gas hydrate storage and transportation technology opens up a new road for energy storage and transportation industry. The current biggest technical problem is how to improve the hydrate formation rate, to increase storage capacity and form continuously. This paper analyses existing research results, and find that SDS is researched the most widely currently, but there are many insufficient. Specific effects of different surfactants on hydrate formation were summarized, hydrate formation mechanism of surfactants were expounded. The lack of research and the research direction of the future were pointed out. It is thought that further study of surfactant mechanism and build kinetics model containing surfactant have important theory value.


2006 ◽  
Vol 4 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Pietro Di Profio ◽  
Simone Arca ◽  
Raimondo Germani ◽  
Gianfranco Savelli

In the last years the development of fuel cell (FC) technology has highlighted the correlated problem of storage and transportation of gaseous fuels, particularly hydrogen and methane. In fact, forecasting a large scale application of the FC technology in the near future, the conventional technologies of storage and transportation of gaseous fuels will be inadequate to support an expectedly large request. Therefore, many studies are being devoted to the development of novel efficient technologies for gas storage and transport; one of those is methane and hydrogen storage in solid, water-based clathrate hydrates. Clathrate hydrates (CH) are nonstoichiometric, nanostructured complexes of small “guest” molecules enclosed into water cages, which typically form at relatively low temperature-high pressure. In nature, CH of natural gas represent an unconventional and unexploited energy source and methane hydrate technology is already applied industrially. More recently, striking literature reports showed a rapid approach to the possibility of obtaining hydrogen hydrates at room temperature/mild pressures. Methane hydrate formation has been shown to be heavily promoted by some chemicals, notably amphiphiles. Our research is aimed at understanding the basic phenomena underlying CH formation, with a goal to render hydrate formation conditions milder, and increase the concentration of gas within the CH. In the present paper, we show the results of a preliminary attempt to relate the structural features of several amphiphilic additives to the kinetic and thermodynamic parameters of methane hydrate formation—e.g., induction times, rate of formation, occupancy, etc. According to the present study, it is found that a reduction of induction time does not necessarily correlate to an increase of the formation rate and occupancy, and so on. This may be related to the nature of chemical moieties forming a particular amphiphile (e.g., the hydrophobic tail, head group, counterion, etc.). Moreover, a chemometric approach is presented which is aimed at obtaining information on the choice of coformers for H2 storage in hydrates at mild pressures and temperatures.


Author(s):  
Mohd Suleman

In the present work, Hybrid fuel storage system of compressed air is an extensive technology that provides long duration energy storage. It is encouraged in balancing the large scale penetration of intermittent and dispersed sources of power. Such as wind and solar power into electric grids .The existing Compressed air energy storage (CAES) plants utilize natural gas as fuel. In this project we are replacing the natural gas with the composition of air (15 bar), copper oxide (5-20%), and water (50%). validated with the results obtained using Computational Fluid Dynamics (CFD) analysis. Modeling of energy storage tank is done in Computer Aided Three Dimensional Interactive Application (CATIA) software, mesh has been created using ANSYS workbench software and Analysis is done in Fluent Software. The composition is sent from the inlet of the energy storage tank and temperatures are varied like 298k, 373k, 423k, and 473k. Velocities are also varied like 15m/s, 25m/s, 35m/s, 45m/s. This hybrid fuel storage deals with phase change material by using water and copper by heating at different temperatures to get the energy and re-utilized. This device is applicable for renewable energy application to avoid the heat losses new technique of energy saving in suitable forms. This has the lead to the emergence of fuel storage as a management of energy and allowing it to various levels of energy storage. In many parts of the world this storage of energy plays an important role and a new technique of energy saving in suitable forms. This has the lead to the emergence of fuel storage as a management of energy and allowing it to various levels of energy storage.


2020 ◽  
Vol 185 ◽  
pp. 01023
Author(s):  
Yuan An ◽  
Jianing Li ◽  
Cenyue Chen

The intermittence and uncertainty of wind power and photovoltaic power have hindered the large-scale development of both. Therefore, it is very necessary to properly configure energy storage devices in the wind-solar complementary power grid. For the hybrid energy storage system composed of storage battery and supercapacitor, the optimization model of hybrid energy storage capacity is established with the minimum comprehensive cost as the objective function and the energy saving and charging state as the constraints. A simulated annealing artificial fish school algorithm with memory function is proposed to solve the model. The results show that the hybrid energy storage system can greatly save costs and improve system economy.


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