Techno-economic comparison between different technologies for CO2-free power generation from coal

Pettinau, Alberto; Ferrara, Francesca; Tola, Vittorio; Cau, Giorgio

doi:10.1016/j.apenergy.2017.02.056

Cited by 84 publications

(30 citation statements)

References 38 publications

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“…Personnel cost includes annual operating labor, maintenance labor and administrative and support labor. A total of four employees were assumed for plant operation management (1 person/shift), with a yearly cost of 30,000 €/year per person [45].…”

Section: Items Costmentioning

confidence: 99%

Techno-Economic Analysis of a Small-Scale Biomass-to-Energy BFB Gasification-Based System

Porcu¹,

Sollai²,

Marotto³

et al. 2019

Energies

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In order to limit global warming to around 1.5–2.0 °C by the end of the 21st century, there is the need to drastically limit the emissions of CO2. This goal can be pursued by promoting the diffusion of advanced technologies for power generation from renewable energy sources. In this field, biomass can play a very important role since, differently from solar and wind, it can be considered a programmable source. This paper reports a techno-economic analysis on the possible commercial application of gasification technologies for small-scale (2 MWe) power generation from biomass. The analysis is based on the preliminary experimental performance of a 500 kWth pilot-scale air-blown bubbling fluidized-bed (BFB) gasification plant, recently installed at the Sotacarbo Research Centre (Italy) and commissioned in December 2017. The analysis confirms that air-blown BFB biomass gasification can be profitable for the applications with low-cost biomass, such as agricultural waste, with a net present value up to about 6 M€ as long as the biomass is provided for free; on the contrary, the technology is not competitive for high-quality biomass (wood chips, as those used for the preliminary experimental tests). In parallel, an analysis of the financial risk was carried out, in order to estimate the probability of a profitable investment if a variation of the key financial parameters occurs. In particular, the analysis shows a probability of 90% of a NPV at 15 years between 1.4 and 5.1 M€ and an IRR between 11.6% and 23.7%.

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Section: Items Costmentioning

confidence: 99%

Techno-Economic Analysis of a Small-Scale Biomass-to-Energy BFB Gasification-Based System

Porcu¹,

Sollai²,

Marotto³

et al. 2019

Energies

Self Cite

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“…Another group of papers (60 papers, 11%) reviewed the cost of the total CCS chain and its individual processes and compared different power plants with and without CCS, according to typical energy-economic indicators, such as the levelised cost of electricity or CO 2 avoidance costs. Key papers on this topic include a review paper on progress and new developments in CCS from Plasynski et al [78] (d = 291), and cost comparisons between power plants from Tola and Pettinau [79] (d = 258) and Pettinau et al [80] (d = 232).…”

Section: Cluster C3 (Blue 541 Nodes 127%)-techno-economic Assessmementioning

confidence: 99%

Scrutinising the Gap between the Expected and Actual Deployment of Carbon Capture and Storage—A Bibliometric Analysis

Viebahn

Chappin

2018

Energies

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For many years, carbon capture and storage (CCS) has been discussed as a technology that may make a significant contribution to achieving major reductions in greenhouse gas emissions. At present, however, only two large-scale power plants capture a total of 2.4 Mt CO 2 /a. Several reasons are identified for this mismatch between expectations and realised deployment. Applying bibliographic coupling, the research front of CCS, understood to be published peer-reviewed papers, is explored to scrutinise whether the current research is sufficient to meet these problems. The analysis reveals that research is dominated by technical research (69%). Only 31% of papers address non-technical issues, particularly exploring public perception, policy, and regulation, providing a broader view on CCS implementation on the regional or national level, or using assessment frameworks. This shows that the research is advancing and attempting to meet the outlined problems, which are mainly non-technology related. In addition to strengthening this research, the proportion of papers that adopt a holistic approach may be increased in a bid to meet the challenges involved in transforming a complex energy system. It may also be useful to include a broad variety of stakeholders in research so as to provide a more resilient development of CCS deployment strategies.

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“…Reducing the emissions from fossil‐fuel power plants is critical for both protecting the environment and achieving sustainable economic development . One way to reduce the emissions is to improve the energy conversion efficiency of power plants—decreasing the per unit emission of CO 2 . A solution with a greater potential to reduce CO 2 emissions is to capture and utilize or sequester the CO 2 emitted from fossil‐fuel power plants.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6] One way to reduce the emissions is to improve the energy conversion efficiency of power plants-decreasing the per unit emission of CO 2 . 7 A solution with a greater potential to reduce CO 2 emissions is to capture and utilize or sequester the CO 2 emitted from fossil-fuel power plants. Carbon capture and sequestration (CCS) is an emerging technology with extensive research and development efforts globally.…”

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confidence: 99%

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs

et al. 2019

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Summary Supercritical CO2 (sCO2) has been proven to be a promising working fluid for geothermal heat mining, and the produced hot sCO2 can be directly used for power generation. However, the sCO2 produced from a brine‐based reservoir may contain a certain amount of water, preventing direct power‐cycle utilization. In this paper, an axial vane separator was designed to address the separation problem of sCO2 and water produced from geothermal reservoirs. First, the influences of operational and structural parameters on the separation performance were analyzed through numerical simulations. Five factors were selected to develop separation performance regression models by the response‐surface method (RSM). Finally, geometrical parameter optimization was applied to these RSM models. The results show that the guide vane area and the exhaust inlet are the main locations impacting the system pressure drop. The separation performance can be affected by many factors, including the guide blade outlet angle, number of vanes, hub diameter, length of the vortex tube, droplet size, and inlet velocity. The water‐droplet size and the number of vanes are the most critical factors affecting the separation efficiency. The inlet velocity, the number of vanes, and the hub diameter have a larger influence on the pressure drop of the separator. The optimization results indicate that the separation efficiency can reach 100% under certain operating conditions with a pressure drop no greater than 100 kPa.

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Techno-economic comparison between different technologies for CO2-free power generation from coal

Cited by 84 publications

References 38 publications

Techno-Economic Analysis of a Small-Scale Biomass-to-Energy BFB Gasification-Based System

Techno-Economic Analysis of a Small-Scale Biomass-to-Energy BFB Gasification-Based System

Scrutinising the Gap between the Expected and Actual Deployment of Carbon Capture and Storage—A Bibliometric Analysis

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs

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Techno-economic comparison between different technologies for CO2-free power generation from coal

Cited by 84 publications

References 38 publications

Techno-Economic Analysis of a Small-Scale Biomass-to-Energy BFB Gasification-Based System

Techno-Economic Analysis of a Small-Scale Biomass-to-Energy BFB Gasification-Based System

Scrutinising the Gap between the Expected and Actual Deployment of Carbon Capture and Storage—A Bibliometric Analysis

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO2 (sCO2 )-water mixtures from geothermal reservoirs

Contact Info

Product

Resources

About

Performance analysis and optimization design of an axial-flow vane separator for supercritical CO₂ (sCO₂ )-water mixtures from geothermal reservoirs