scholarly journals CO2 CONTENT OF GREEK LIGNITE: THE CASE OF PROASTIO LIGNITE DEPOSIT IN PTOLEMAIS BASIN, NORTHERN GREECE

2017 ◽  
Vol 43 (5) ◽  
pp. 2274
Author(s):  
Α. Metaxas ◽  
Α.Ν. Georgakopoulos ◽  
D.Μ.Μ. Karageorgiou ◽  
G. Papanikolaou ◽  
E.D. Karageorgiou
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Electricity Generation ◽  
Power Plants ◽  
Fossil Fuels ◽  
Depositional Environment ◽  
Fossil Fuel ◽  
Thermal Power ◽  
Geological Storage ◽  
Northern Greece

Lignite is an important energy source for Greece, which severely relies on this fossil fuel for electricity generation over the years. The lignite combustion, however, releases a significant amount of carbon dioxide to the atmosphere per unit of energy generated, more than does the combustion of other fossil fuels. On the other hand, there is a growing concern over the possible consequences of global warming due to the increase of carbon dioxide in the atmosphere (a major greenhouse gas). Additionally, there is also a need for accurate estimates of carbon dioxide emissions. There are many factors resulting in the increase of CO2 content in lignite such as their formation and depositional environment, the possible presence of fossils, and their rank. In the present paper the CO2 content of the Proastio lignite deposit, Ptolemais Basin, is studied, in relation to the depositional palaeo-environment. An interpretation of CO2 variation with depth, age and surrounding rocks is also attempted. CO2 content of Proastio deposit is compared with this of other lignite deposits in the Ptolemais Basin, of various types and ages. Finally, the effect of CO2 content in the combustion of lignite is studied, while the possibility of the geological storage of the emitted carbon dioxide is explored after its capture from the Thermal Power Plants (CCS technology).

The Health Impacts of Coal-Fired Power Plants in India and the Co-benefits of Greenhouse Gas Reductions

2021 ◽  
Vol 111 ◽  
pp. 386-390
Author(s):  
Maureen Cropper ◽  
Ryna Cui ◽  
Sarath Guttikunda ◽  
Nate Hultman ◽  
Puja Jawahar ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Electricity Generation ◽  
Power Plants ◽  
Fossil Fuel ◽  
Paris Agreement ◽  
Health Impacts ◽  
Generating Capacity

Under the Paris Agreement, India has pledged that 40 percent of its electricity generating capacity will come from non-fossil-fuel sources by the year 2030; however, this pledge does not limit total coal-fired generating capacity. As of 2019, planned increases in coal-fired capacity totaled 95 gigawatts--46 percent of installed coal-fired capacity in 2018. In this paper, we estimate the carbon dioxide benefits and health co-benefits of not building these plants. We also estimate the mortality impacts of the 2018 stock of coal-fired power plants and use it to calculate the tax on electricity generation from coal that would internalize these damages.

scholarly journals Power Window

2007 ◽  
Vol 129 (04) ◽  
pp. 38-39
Author(s):  
Jeffrey Winters
Keyword(s):  
Carbon Dioxide ◽  
Environmental Protection Agency ◽  
Carbon Dioxide Emissions ◽  
Power Plants ◽  
Thermal Power ◽  
Western Society ◽  
Draft Report ◽  
Oil Companies ◽  
Us Economy ◽  
The Usa

Over the time, oil companies, utilities, and the Bush administration have come around to the idea that global warming is real and a consortium of USA. Companies including PG&E, Duke Energy, and Alcoa- has reportedly asked for congressional action to control carbon emissions. The chart presented in the article shows in detail the carbon dioxide emitted across the entire US economy, as determined by a draft report of the USA. Environmental Protection Agency released in February. Each square represents 10 million tons of carbon dioxide emissions and there are 726 of them. A quick glance shows that massive amounts of carbon dioxide are produced from the burning of coal in thermal power plants and the burning of gasoline and diesel fuel in the engines of cars and trucks. Switzerland, Sweden, Japan, and France are considered as models of Western society. They owe their position to a few factors, some of which may be emulated, and some of which are geographical accidents.

scholarly journals CORRELATION ANALYSIS OF SATELLITE DATA ON CARBON DIOXIDE EMISSIONS AND VEGETATION INDEXES IN THE TERRITORY OF DONBASS

2020 ◽  
Vol 2 (5) ◽  
pp. 104-110
Author(s):  
F.V. Nedopekin ◽  
◽  
N.S. Shestavin ◽  
V.V. Yurchenko ◽  
◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Satellite Data ◽  
Carbon Dioxide Emissions ◽  
Power Plants ◽  
Near Infrared ◽  
Thermal Power ◽  
Anthropogenic Sources ◽  
The Black Sea ◽  
Control Points ◽  
Vegetation Indexes

Using the Emissions Database for Global Atmospheric Research satellite data on the annual global carbon dioxide emissions, their distributions in the Donbass were obtained for the period from 2013 to 2018, indicating their main anthropogenic sources: large cities, thermal power plants and metallurgical plants. Control points were selected near and far from the largest sources of carbon dioxide emissions and, with the help of the resources of the Shared Use Center, systems for archiving, processing and analysis of satellite data of the Institute of Space Research of the Russian Academy of Sciences, the average annual vegetation indexes in the territory of Donbass and at control points for the same period of time were determined. A comparison was made of the reflection intensities in the near infrared and red regions of the spectrum, as well as the normalized relative vegetation indexes at these control points. It is indicated that there is no direct correlation between the values of vegetation indexes and the concentration of carbon dioxide in a given period of time. A sharp decrease in the volume of biomass was noted in a number of control points due to the appearance of signs of drought in the Black Sea region, as well as a significant increase in wild vegetation in the conflict zone in the eastern regions of Donbass.

Pre-Combustion Removal of Carbon Dioxide From Natural Gas Power Plants and the Transition to Hydrogen Energy Systems

1992 ◽  
Vol 114 (3) ◽  
pp. 221-226 ◽  
Author(s):  
Y. Mori ◽  
S. M. Masutani ◽  
G. C. Nihous ◽  
L. A. Vega ◽  
C. M. Kinoshita
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Power Plants ◽  
Fossil Fuels ◽  
Energy Systems ◽  
Deep Ocean ◽  
Hydrocarbon Fuel ◽  
Hydrogen Energy ◽  
Power Cost ◽  
Gas Treatment

A system to reduce carbon dioxide emissions from combustion power plants is described. Unlike earlier proposals based on flue gas treatment, the problem is addressed prior to combustion by reforming the hydrocarbon fuel into H2 and CO2. Following separation, H2 is burned in place of the original fuel and the captured CO2 is liquefied and injected into the deep ocean at a depth sufficient to ensure effective containment, and to minimize damage to the marine environment. Calculations indicate moderate plant thermal efficiency and power cost penalties. In addition, the H2 production potential of this system may be exploited as a means to facilitate the transition from fossil fuels to future hydrogen energy systems.

scholarly journals CO2 Mitigation in the Power Sector of Thailand: Analyses of Cleaner Supply-side Options Beyond the Paris Agreement

2019 ◽  
Vol 12 (1) ◽  
pp. 15-25 ◽  
Author(s):  
Lyheang Chhay ◽  
Bundit Limmeechokchai
Keyword(s):  
Carbon Dioxide ◽  
Renewable Energy ◽  
Carbon Dioxide Emissions ◽  
Electricity Generation ◽  
Carbon Capture ◽  
Fossil Fuels ◽  
Carbon Tax ◽  
Supply Side ◽  
Power Sector ◽  
Power Development

Background: The drastically increasing share of fossil fuel supply to meet the rapidly growing electricity demand resulting in increasing Carbon dioxide (CO2) emissions, is the major concern in Thailand. In 2015, fossil fuels used in electricity generation in Thailand accounted for around 85.3% of the total electricity generation. Aim: The aim of the study is to analyze carbon dioxide mitigation options under the cleaner supply-side option beyond the Intended Nationally Determined Contribution (INDC) of Thailand. Methods: In this study, the Long-range Energy Planning (LEAP) model is used to analyze the share of electricity generation and CO2 mitigation from four main different scenarios, namely Business-as-Usual (BAU), Renewable Energy (RE), Carbon Capture Storage (CCS), and Carbon Tax (CT) scenarios during 2015 to 2050. The BAU scenario is constructed following the power development targets of the Power Development Plan in 2015. Results: The results illustrate that in the BAU scenario, electricity generation and carbon dioxide emissions from the power sector will increase by 57.7% and 37.3%, respectively in 2050 as compared to 2015. The imposition of carbon tax of $20/tCO2 from 2020 and an increase to $500/t CO2 by 2050 will have a high potential to reduce CO2 emissions from the power sector as compared with other scenarios. Conclusion: Results show that except for the RE scenarios considering the lower share of solar and biomass, all scenarios would help Thailand in achieving the target of INDC by 2030. Results provide that the share of imported electricity is higher with the imposition of carbon tax as compared to the scenarios with the promotion of renewable energy, CCS and EV technology.

scholarly journals Coal deposits of Turkey: properties and importance on energy demand

2013 ◽  
Vol 47 (4) ◽  
pp. 2111 ◽  
Author(s):  
R. G. Oskay ◽  
H. Inaner ◽  
A. I. Karayigit ◽  
K. Christanis
Keyword(s):  
Energy Supply ◽  
Energy Demand ◽  
Electricity Generation ◽  
Power Plants ◽  
Fossil Fuels ◽  
Thermal Power ◽  
Low Rank ◽  
Coal Deposits ◽  
Coal Reserves ◽  
Low Rank Coals

In the last two decades electricity generation and consumption in Turkey was increasing steadily. Around 80% of the electricity generated is derived from fossil fuels such as imported natural gas and oil, and domestic coal. As the energy policy now is focusing on reducing the dependency on imported fuels, coal, particularly this of low-rank, is becoming important for the country. Latest explorations showed that total coal reserves of Turkey reach to 13 Gt with low-rank coals (i.e. lignite and sub-bituminous) being dominant. Coal deposits, formed under various conditions and in various geological times, are widely spread over the territory. The most significant deposits are of Tertiary, especially Neogene age. Neogene coals are most appropriate for combustion in the thermal power plants due to the high total reserves despite the high ash yields and the low calorific values. We imply that applying reasonable exploitation planning and appropriate washing techniques, coal will play a key role in future energy supply of the country.

scholarly journals A synthesis of carbon dioxide emissions from fossil-fuel combustion

2012 ◽  
Vol 9 (1) ◽  
pp. 1299-1376 ◽  
Author(s):  
R. J. Andres ◽  
T. A. Boden ◽  
F.-M. Bréon ◽  
P. Ciais ◽  
S. Davis ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
Fuel Combustion ◽  
Interval Uncertainty ◽  
Fossil Fuel Combustion ◽  
Cement Production ◽  
Spatial And Temporal Scales ◽  
Reduce Emissions

Abstract. This synthesis discusses the emissions of carbon dioxide from fossil-fuel combustion and cement production. While much is known about these emissions, there is still much that is unknown about the details surrounding these emissions. This synthesis explores our knowledge of these emissions in terms of why there is concern about them; how they are calculated; the major global efforts on inventorying them; their global, regional, and national totals at different spatial and temporal scales; how they are distributed on global grids (i.e. maps); how they are transported in models; and the uncertainties associated with these different aspects of the emissions. The magnitude of emissions from the combustion of fossil fuels has been almost continuously increasing with time since fossil fuels were first used by humans. Despite events in some nations specifically designed to reduce emissions, or which have had emissions reduction as a byproduct of other events, global total emissions continue their general increase with time. Global total fossil-fuel carbon dioxide emissions are known to within 10% uncertainty (95% confidence interval). Uncertainty on individual national total fossil-fuel carbon dioxide emissions range from a few percent to more than 50%. The information discussed in this manuscript synthesizes global, regional and national fossil-fuel carbon dioxide emissions, their distributions, their transport, and the associated uncertainties.

Analysis of Carbon Saving by the Adoption of Electric Vehicles in a Region Where Electricity Generation is Dominated by Thermal Power Plants

2021 ◽  
Author(s):  
Parakram Pyakurel ◽  
Filipe Quintal ◽  
James Auger ◽  
Julian Hanna
Keyword(s):  
Co2 Emissions ◽  
Electric Vehicles ◽  
Power Plants ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
Thermal Power ◽  
Primary Source ◽  
Electricity Production ◽  
Thermal Power Plants ◽  
Electrical Demand

One method of reducing atmospheric CO2 emissions in the transportation sector is the replacement of conventional fossil fuel-based vehicles with Electric Vehicles (EVs). However, fossil fuels are still the primary source of electricity production in many regions and the utilization of EVs in such regions increases the electricity demand because of battery charging. This results in increased burning of fossil fuels by thermal power plants and therefore can offset savings in CO2 emissions resulting from the adoption of EVs. In this paper, we consider a scenario where all fossil fuel-based conventional vehicles are replaced by EVs and then estimate the net CO2 emission savings resulting from the adoption of EVs in a region where electricity is primarily supplied by thermal plants. Only emissions generated during the operational phase of vehicle use are considered; emissions during the production phase are not considered. The region under consideration is Madeira, Portugal where thermal plants account for 80% of the total electricity produced. Our findings suggest that although EVs have huge potential to save CO2 emissions, a substantial amount of the savings can be offset due to the increased burning of fossil fuels by thermal plants to meet the electrical demand of charging batteries.

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