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Kiran, Burla Sai
- Illustration of Hydrate-Based Methane Gas Separation in Coal Bed Methane Type Gas Composition at Lower Pressures
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Authors
Affiliations
1 Gas Hydrate Division, CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
1 Gas Hydrate Division, CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
Source
Current Science, Vol 114, No 03 (2018), Pagination: 661-666Abstract
Coal bed methane is an emerging and prosperous unconventional energy source, encompassing highly variable (10–70%) mole fractions of methane gas along with other higher hydrocarbon and nonhydrocarbon gases. The gas pressure at the source is typically low, posing technical constraints in the gas separation process. In particular, separation of methane gas from this source is a topic of wider scientific interest. The present study demonstrates the ability of hydrate-based technology in trapping methane gas, in nitrogen (N2) + methane (CH4) gas mixture, using tetrahydrofuran (THF)-based hydrate-forming system at lower operating pressures (1.0 MPa). It is observed that the gas trapping is efficient and rapid. All the experiments were conducted at non-stirred condition, which is technically easy to achieve. Mole fraction of CH4 was increased in proportion with N2, and it was found that methane gas uptake capacity in hydrate cages, increased progressively with increasing CH4 concentration. Gas uptake kinetics was also found to be extremely fast and 90% of the gas consumed in hydrates within 50–60 min from hydrate nucleation.Keywords
Coal Bed Methane, Gas Hydrates, Lower Operating Pressure, Tetrahydrofuran.Full Text
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- Effectiveness of Amino Acids for Carbon Storage and Utilization Applications
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Authors
Affiliations
1 Gas Hydrate Division, CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
1 Gas Hydrate Division, CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
Source
Current Science, Vol 114, No 06 (2018), Pagination: 1163-1165Abstract
Carbon dioxide (CO2), the primary greenhouse gas, can have a major impact on global warming, if present in the earth’s atmosphere beyond permissible limits. In fact, the accumulative emissions of CO2 gas in the atmosphere are progressively increasing causing the global temperature rise by 1.5°C to 2°C (ref. 1). On the other hand, CO2 also can form clathrate hydrates under some favourable thermodynamic conditions.Full Text
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- Feasibility of hydrate technology for natural gas storage and transportation
Abstract Views :229 |
PDF Views:85
Authors
Affiliations
1 CSIR–National Geophysical Research Institute, Hyderabad 500 007, India and Academy of Scientific and Innovative Research, Ghaziabad 201 002, IN
1 CSIR–National Geophysical Research Institute, Hyderabad 500 007, India and Academy of Scientific and Innovative Research, Ghaziabad 201 002, IN
Source
Current Science, Vol 122, No 5 (2022), Pagination: 513-514Abstract
No Abstract.Keywords
No keywordsFull Text
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