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Special Graduate Schools
Graduate School of International Studies
Department of Energy Studies
3. Theses(Master)
Prospect of Underground Coal Gasification (UCG) with CCS technology for Jamalganj Coalfield
- Subtitle
- An alternative solution for Sustainable Energy Development of Bangladesh
- Author(s)
- ALAM MD JAHANGIR
- Advisor
- Hyung Taek Kim
- Department
- 국제대학원 융합에너지학과
- Publisher
- Graduate School of International Studies Ajou University
- Publication Year
- 2021-02
- Language
- eng
- Keyword
- ASPEN+; CCS; Underground Coal Gasification
- Alternative Abstract
- Underground coal gasification (UCG) is a method of gasifying Coal in-situ, considered as a cleaner and alternative mining method of capturing energy from underground coal specially which coalfields cannot be exploited by other methods. Due to some socio-political reasons, we are not able to mine the coal reserve of Bangladesh but only a little amount by underground coal mining. The Jamalganj coalfield has a reserve 1,053 million tons at the depth of 640-1,150 m. So, Conventional underground or opencut methods are not possible here. In this study, the mechanism and probability of UCG be explored by observing physical condition, mine condition, coal seam position, coal quality and the possibility of underground combustion, related viability etc. The second part provides an approach in determining how this mechanism and technology by ASPEN+ simulation is discussed. Four parts of this process are (i) Air separation unit for separating O2 for gasification, (ii) Gasification, where gasification happens in the underground coal formation, (iii) Gas Cleaning to separate syngas, required other gases for usages and CO2 for sequestration from the complex gases mixtures and (iv) IGCC powerplant facility that uses the cleaned syngas as fuel for power generation. After ignition, with steam and oxygen coal reacts and produces a synthesis gas (syn-gas). We can utilize the syngas for generating power using IGCC method. It could be also used for producing liquid fuels, producing fertilizers, or other chemical industry purposes. Most of the solid and liquid pollutants remain underground and will not affect the environment too much. This carbon capture storage system will be used in situ in the void ‘goaf’ area above the crystalline basement rock of this deep geological formation strata. Here, a successful 550 MW powerplant is designed by coal feeding 55.2845 kg/sec amount and produced syngas from this unexploited coal resource. This integrated underground coal gasification - CCS - IGCC System could offer many advantages here over the conventional mining and gasification process. This is how this technology could help Bangladesh to mitigate the increased demand for safe energy by securing energy security as in a sustainable approach.
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