The Contribution of Carbon Capture and Storage to the Decarbonization of Coal-Fired Power Plants in Selected Asian Countries

Lau, Hon Chung

doi:10.1021/acs.energyfuels.3c02648

Cited by 9 publications

(4 citation statements)

References 52 publications

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“…This will require compressing the captured CO 2 and transporting it to nearby oil or gas reservoirs, or using saline aquifers for permanent storage. A recent study by Lau showed a potentially large contribution of retrofitting CCS in existing coal-fired power plants in several Asian countries [66]. Which method is preferred will depend on the availability of gas to replace coal and the availability of suitable subsurface storage sites for CO 2 storage.…”

Section: Decarbonization For Coal-dominated Economiesmentioning

confidence: 99%

Global Decarbonization: Current Status and What It Will Take to Achieve Net Zero by 2050

Lau,

Tsai

2023

Energies

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A review of global CO2 emissions over the last century shows that emissions from 80 economies contributed to 95% of global emissions. Among them, 55 economies were decarbonizers, where CO2 emissions had either plateaued or were declining, while 25 economies were polluters, where CO2 emissions were still increasing. In 2021, the global CO2 emissions were 37.1 Gtpa, with 56% coming from polluters and 39% from decarbonizers. If current trends continue, global CO2 emissions will reach 49.6 Gtpa by 2050, with 81% coming from polluters and 14% from decarbonizers. Only 14 economies will reach net zero. The decarbonization target, over and above current efforts, to achieve net zero is calculated for each economy. Decarbonizers need to mitigate 230 Mtpa CO2 and polluters 1365 Mtpa CO2 beginning in 2021 to reach the net-zero target by 2050. This target will increase each year decarbonization is delayed. Analyses show that renewable energies’ share in the total final energy consumption in most economies increased by an average of only 4 percentage points in the last decade, which is inadequate for achieving net zero by 2050. Other means of decarbonization, including low-carbon fossil solutions through carbon capture and storage, will be needed. Pathways to accelerate decarbonization are proposed and their policy implications are discussed.

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Section: Decarbonization For Coal-dominated Economiesmentioning

confidence: 99%

Global Decarbonization: Current Status and What It Will Take to Achieve Net Zero by 2050

Lau,

Tsai

2023

Energies

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“…1,2 The International Energy Agency (IEA) describes 78 pathways to achieve net-zero emissions globally by 2050, which would require the world to capture and store 79 billion tons of carbon dioxide annually. 3,4 As an intermediate link in the CCUS technologies chain, the choice of transportation method plays a crucial role in the deployment of CCUS infrastructure. 5,6 Common transportation methods include tanker truck, tanker train, pipeline and tanker ship.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, Carbon Capture, Utilization and Storage (CCUS) technologies offer a promising pathway for reducing carbon dioxide emissions and combating climate change (Figure ). By capturing, utilizing and storing carbon dioxide emissions, CCUS technologies prevent their release into the atmosphere and minimizes their impact on climate change. , The International Energy Agency (IEA) describes 78 pathways to achieve net-zero emissions globally by 2050, which would require the world to capture and store 79 billion tons of carbon dioxide annually. , As an intermediate link in the CCUS technologies chain, the choice of transportation method plays a crucial role in the deployment of CCUS infrastructure. , Common transportation methods include tanker truck, tanker train, pipeline and tanker ship . Among those methods, pipeline transportation is the primary option for CCUS projects, as depicted in Table .…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Review on Leakage Characteristics and Diffusion Laws of Carbon Dioxide Pipelines

Shang,

Chen,

Yang

et al. 2024

Energy Fuels

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The leakage of carbon dioxide pipelines may result in significant incidents, such as fracture expansion, harm to humans and animals, and the loss of transported substances. Therefore, it is essential for us to accurately explain the processes of leakage and diffusion in carbon dioxide pipelines. Initially, this paper introduces the hazards of carbon dioxide leakage and the physical processes involved in such incidents. Subsequently, it systematically reviews recent research involving experiments and numerical simulations of carbon dioxide pipeline leakage at the entire process, including the in-pipe depressurization process, the near-field jetting process, and the far-field diffusion process. Moreover, it specifically discusses the differences in leakage processes between buried and overhead pipelines, highlighting the distinctive appearance resulting from leaks in buried pipelines. The Span-Wagner (SW) equation of state was found to accurately predict the thermodynamic behaviors of carbon dioxide during the entire process of pure carbon dioxide leakage and diffusion. Conversely, the GERG-2008 equation of state is better suited for carbon dioxide with impurities. Additionally, Homogenous Relaxation Model (HRM) and Delay Homogeneous Equilibrium Model (DHEM) have provided more precise predictions of carbon dioxide leakage and diffusion processes compared to the Homogeneous Equilibrium Model (HEM). The Computational Fluid Dynamics (CFD) model, in comparison to simplified models like Process Hazard Analysis Software Tool (PHAST), can better account for complex terrains, specific environmental conditions, and the impact of nearby structures or other obstacles on the carbon dioxide diffusion process. Its prediction aligns more closely with the actual results. However, research on buried carbon dioxide pipelines is still in its infancy, with only preliminary insights available at this time. Finally, this paper summarizes the research deficiencies on the leakage characteristics and diffusion laws of carbon dioxide pipelines, while providing a perspective on future research possibilities.

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“…They include clean coal technologies, 9 carbon capture, utilization and storage (CCUS), 10 renewable energies, 11 nuclear energy, 12 hydrogen, 13−16 and reduced energy demand through adoption of a circular economy. 17 There is also research focused on the decarbonization of various energy consumption sectors such as power, 18−20 transport, 21,22 and industry 23,24 as well as research on the decarbonization of specific countries 20,25−30 and regions. 19,31−33 Besides technologies, economics play an important role in financing the energy transition.…”

Section: Introductionmentioning

confidence: 99%

A Longitudinal Study on the History of Energy Transition and Its Implications on Global Decarbonization

Lau,

Tsai

2024

Energy Fuels

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A longitudinal study on per capita CO 2 emissions of 164 economies over four decades shows that there is an inverted U-shape relationship between per capita CO 2 emissions and per capita gross domestic product (GDP), as proposed by the environmental Kuznets curve. In general, an economy goes through three stages of energy transition based on its per capita GDP. When an economy's per capita GDP is less than $7000, change in per capita CO 2 emission exceeds or tracks the change in per capita GDP. When an economy's per capita GDP is between $7000 and $24,000, per capita CO 2 emission either tracks or lags behind per capita GDP. When an economy's per capita GDP exceeds $25,000, its per capita CO 2 emission is decoupled from per capita GDP and even decrease. Furthermore, the evolution of energy mix of an economy can be displayed in a ternary diagram, with coal, oil-andgas, and renewable and nuclear energies (REN) at the apexes. Results show that an economy's energy mix generally follows the trend going from coal-dominated to oiland-gas-dominated and then REN-dominated. However, the rate of change in energy mix is slow and is less than one percent point per year for many economies, and therefore, relying solely on REN to replace fossil fuels to achieve net zero by 2050 is impractical. Other options including carbon capture and storage will be needed. An energy mix index is introduced, which can be used to track an economy's progress toward replacing fossil fuels by REN for primary energy consumption.

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The Contribution of Carbon Capture and Storage to the Decarbonization of Coal-Fired Power Plants in Selected Asian Countries

Cited by 9 publications

References 52 publications

Global Decarbonization: Current Status and What It Will Take to Achieve Net Zero by 2050

Global Decarbonization: Current Status and What It Will Take to Achieve Net Zero by 2050

Comprehensive Review on Leakage Characteristics and Diffusion Laws of Carbon Dioxide Pipelines

A Longitudinal Study on the History of Energy Transition and Its Implications on Global Decarbonization

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