Techno-economic evaluation of gas separation processes for long-term operation of CO2 injected enhanced coalbed methane (ECBM)

Kim, Sung Hoon; Ko, Daeho; Mun, Junyoung; Kim, Tae Hyun; Kim, Jiyong

doi:10.1007/s11814-017-0261-4

Cited by 20 publications

(6 citation statements)

References 37 publications

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“…The authors identified key factors that have the most significant impact on the economic efficiency of such projects. An approach to assessing the technical and economic efficiency of CCUS-ECBM projects is proposed by Kim et al [20]. The results showed that coalbed methane can become a serious competitor to a natural gas.…”

Section: Analysis Of Co 2 Sequestration Optionsmentioning

confidence: 99%

The Changing Role of CO2 in the Transition to a Circular Economy: Review of Carbon Sequestration Projects

2019

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Despite the diversity of studies on global warming and climate change mitigation technologies, research on the changing role of CO2 in the industrial processes, which is connected with the introduction of circular economy principles, is still out of scope. The purpose of this review is to answer the following question: Is technogenic CO2 still an industrial waste or has it become a valuable resource? For this purpose, statistical information from the National Energy Technology Library and the Global CCS Institute databases were reviewed. All sequestration projects (199) were divided into three groups: carbon capture and storage (65); carbon capture, utilization, and storage (100); and carbon capture and utilization (34). It was found that: (1) total annual CO2 consumption of such projects was 50.1 Mtpa in 2018, with a possible increase to 326.7 Mtpa in the coming decade; (2) total amount of CO2 sequestered in such projects could be 2209 Mt in 2028; (3) the risk of such projects being cancelled or postponed is around 31.8%; (4) CO2 is a valuable and sought-after resource for various industries. It was concluded that further development of carbon capture and utilization technologies will invariably lead to a change in attitudes towards CO2, as well as the appearance of new CO2-based markets and industries.

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Section: Analysis Of Co 2 Sequestration Optionsmentioning

confidence: 99%

The Changing Role of CO2 in the Transition to a Circular Economy: Review of Carbon Sequestration Projects

2019

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“…The CBM-gas two-phase flow in the fractures follows the Darcy's law. To simulate the CBM productivity, the motion of the flow can be extended as [12,13]:…”

Section: Motion Equationsmentioning

confidence: 99%

Numerical Simulation of Coalbed Methane-Water Two-Phase Flow and Prediction of Coalbed Methane Productivity Based on Finite Volume Method

Wang¹,

Man²

2019

IJHT

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The finite volume method (FVM) can adapt to complex boundaries, achieve conservation of integrals, and generate flexible integral grids. Compared with the finite difference method (FDM), the FVM is immune to numerical oscillations and numerical dispersions. This paper aims to simulate the coalbed methane (CBM)-water two-phase flow in complex coal rock, and predict the CBM and water outputs in an accurate manner. Therefore, the FVM was introduced to create a simulation model of coalbed methane (CBM) productivity in 3D dual-porosity coal reservoir under non-equilibrium adsorption and pseudo-steady state conditions. The established model was applied to an actual project in Qinshui Basin, Shanxi Province, China. The historical gas and water outputs of a single CBM well were fitted with our model, and the simulated curves agree with the overall trend of the historical drainage and production curves. Next, the change trends of gas and water outputs in the CBM well were predicted, and the sensitivities of gas well productivity to three main reservoir parameters were analyzed. The results correctly reflect the productivity trend of the CBM well, indicating the correctness and feasibility of our model. Our research effectively simulates the migration of the CBM in coal rock with complex boundaries, providing a valuable reference for the development of the CBM.

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“…In the regenerator, the stripped CO 2 is discharged from the top stage through a reverse-absorption reaction. The captured CO 2 is then pressurized to 25 bar through a multi-Table 1 Flue gas of the coal fired power plant adopted in this study (Yakub et al, 2014) Temperature (Kim et al, 2011) 1.21 Temperature of CO 2 lean stream [°C] (Kim et al, 2011) 40 Produced CO 2 purity [%] (Kim et al, 2018) 99 Produced CO 2 pressure [bar] (Dai et al, 2014) 25 Produced CO 2 temperature [°C] (Kim et al, 2018) 40…”

Section: Description Of Process and Design Speci Cationmentioning

confidence: 99%

Techno-Economic Evaluation and Comparative Analysis of the CO<sub>2</sub> Separation Processes Using Different Piperazine-Mixed Amine Absorbents

Kim

2019

J. Chem. Eng. Japan / JCEJ

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CO 2 separation using an amine, in particular monoethanolaimne (MEA), is widely used in the carbon capture and storage (CCS) applications. Despite its technical and economic merits, new amines and improved systems, such as small-size processes that consume less utilities, must be developed to reduce capital and operating costs. Therefore, we aim to i) investigate the technical feasibility of new CO 2 separation processes using di erent amines, focusing on piperazine-mixed amines, and ii) comparatively analyze its economic competitiveness against conventional systems. In achieving this goal, we rst perform process modeling and simulation for CO 2 separation processes using nine di erent amines: three single amines (MEA, diethanolamine and methyldiethanolamine) and six mixed amines by mixing the single amines with different amounts of piperazine. Using process models, we then estimate capital and operating costs of the processes, and comparatively analyze the economics of the processes based on the CO 2 processing cost. We also discuss the sensitivity of major parameters to the process economics with various technical and market scenarios.

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Techno-economic evaluation of gas separation processes for long-term operation of CO2 injected enhanced coalbed methane (ECBM)

Cited by 20 publications

References 37 publications

The Changing Role of CO2 in the Transition to a Circular Economy: Review of Carbon Sequestration Projects

The Changing Role of CO2 in the Transition to a Circular Economy: Review of Carbon Sequestration Projects

Numerical Simulation of Coalbed Methane-Water Two-Phase Flow and Prediction of Coalbed Methane Productivity Based on Finite Volume Method

Techno-Economic Evaluation and Comparative Analysis of the CO<sub>2</sub> Separation Processes Using Different Piperazine-Mixed Amine Absorbents

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