Status of pollutant removal technology for coal fired power plants in the Northeastern US

1979 ◽  
Author(s):  
E. Ziegler ◽  
R. Meyers
Keyword(s):  
Power Plants ◽  
Pollutant Removal ◽  
Removal Technology

Multi-Pollutant Removal System Performance: Based on Testing and Plant Operation Experience

2006 ◽  
Author(s):  
H.-J. Hamel ◽  
Walter Jaeger ◽  
Volker Fattinger ◽  
Heinz Termuehlen
Keyword(s):  
Power Plant ◽  
Natural Gas ◽  
Electric Power ◽  
System Performance ◽  
Power Plants ◽  
Fossil Fuel ◽  
Pollutant Removal ◽  
Clean Coal ◽  
The Us ◽  
Removal System

Since roughly 95 % of the fossil fuel reserves in the US are coal and only 5 % natural gas and crude oil, we need clean coal-fired power plants. Today, about 1400 pulverized-coal-fired power plant units are generating roughly 50 % of the US electric power.

scholarly journals Research Progress on Control and Removal Technology of SO3 of Coal-fired Power Plants

2019 ◽  
Vol 118 ◽  
pp. 01036
Author(s):  
Xiuru Liu ◽  
Yiqing Sun ◽  
Fangming Xue ◽  
Jingcheng Su ◽  
jiangjiang Qu ◽  
...  
Keyword(s):  
Flue Gas ◽  
Coal Combustion ◽  
Power Plants ◽  
Catalytic Reduction ◽  
Research Progress ◽  
Combustion Mode ◽  
High Concentration ◽  
Safe Operation ◽  
Removal Technology ◽  
Coal Power Plants

SO3 is one of pollutants in flue gas of coal power plants. It mainly derived from coal combustion in boiler and selective catalytic reduction denitrification system. The content of SO3 in flue gas were influenced by the combustion mode, sulfur content in fuel, composition of denitrification catalyst and fly ash. SO3 and water vapour generated H2SO4 droplets. Sulfate secondary particles in atmosphere could cause haze, acid rain and other disastrous weather. High concentration of SO3 could cause blockage and corrosion and affect the safe operation of the units. The generation mechanism of SO3 was discussed. The latest research progress on control and removal technology of SO3 was summarized. The study in this paper provides a reference for pollutant treatment in coal-fired power plants.

Estudios sobre la fitorremediación basada en alga wakame (undaria pinnatifida) en la rizoextracción para remover metales pesados de la zona ribereña de la cuenca del río grande-palpa

2021 ◽  
Vol 2 (5) ◽  
pp. 6669-6681
Author(s):  
Misael A. Bendezú Bendezú ◽  
Cynthia V. Bendezú Hernández ◽  
William Y. Villanueva Pérez ◽  
Elcy N. Valenzuela Cucho
Keyword(s):  
Surface Waters ◽  
Adsorption Equilibrium ◽  
Undaria Pinnatifida ◽  
Rio Grande ◽  
Pollutant Removal ◽  
Isotherm Models ◽  
Operational Parameters ◽  
Adsorption Capacities ◽  
Removal Technology ◽  
Del Rio

In the present study, the algae Undaria pinnatífida has been investigated as a biological adsorbent for the elimination of pollutants from surface waters, specifically heavy metals. Operational parameters were optimized in batch phytoremediation experiments. Adsorption equilibrium isotherm models were also investigated and adsorption kinetics were evaluated. Maximum adsorption capacities were observed at 0.008 mg / L at 0.064 mg / L of Cd and for the second sample the adsorption capacity was calculated at 0.007 mg / L at 0.055 mg / L of Cd both in a time of 24 hours, together With removal efficiencies, they reached 72% and 92.7% for the remediation of the Rio Grande water, respectively. These results are important in the development of zero-cost, algal-based pollutant removal technology in water treatment.   En el presente estudio, se ha investigado la algas Undaria pinnatífida, como adsorbente biológico para la eliminación de contaminantes de aguas superficiales, específicamente metales pesados. Los parámetros operativos se optimizaron en experimentos de fitorremediación por lotes. También se investigaron los modelos de isoterma de equilibrio de adsorción y se evaluó la cinética de adsorción. Se observaron capacidades máximas de adsorción en 0.008 mg/L a 0.064 mg / L de Cd y para la segunda muestra la capacidad de adsorción se calculó en 0.007 mg/L a 0.055 mg / L de Cd ambas en un tiempo de 24 horas, junto con las eficiencias de remoción se alcanzaron al 72% y 92.7% para la remediación del agua del río grande, respectivamente. Estos resultados son importantes en el desarrollo de tecnología de eliminación de contaminantes de costo cero basada en algas en el tratamiento de aguas.

The Present Situation of Combined SO2/NOX Removal Technology from Flue Gas

2014 ◽  
Vol 955-959 ◽  
pp. 2366-2369
Author(s):  
Yan Zhang ◽  
Hai Wei Xie
Keyword(s):  
Flue Gas ◽  
Power Plants ◽  
Lower Cost ◽  
Present Situation ◽  
Technical Standard ◽  
Lower Efficiency ◽  
Removal Technology ◽  
Cleaning Technology

The mainly pollutant from coal-fired power plants are SO2 and NOX. Equipments of desulphurization and denitrification step by step are expensive and have a lower efficiency. Comparing with them, Combined Removal of SO2 and NOX technology have great advantages, such as, the simplified complication, better operation property, lower cost and less using area. So Combined Removal of SO2 and NOX in one system become the keystone in the research of cleaning technology .On the base of looking up a lot of references, this paper makes a detailed introduction about Combined Removal of SO2 and NOX technology lately in China and other countries, including the removal principle, the mainly advantages and defects, the present situation and the application of technology. The contrast of economic and technical standard is given .Through analysis, synthesis and comparison of two kinds of technology-Combined Removal of SO2/NOX in boiler and in flue gas, the key of research in future is found out. These contents can reference in improvement and exploiture of technology later.

scholarly journals CO2 Removal Technology from Flue Gases Containing SO2 at Thermal Power Plants.

1996 ◽  
Vol 75 (8) ◽  
pp. 732-741 ◽  
Author(s):  
Mutsuo YAMADA ◽  
Kazumi MURAKAMI ◽  
Naoki ODA ◽  
Akira MORI ◽  
Makoto NISHIMURA ◽  
...  
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Flue Gases ◽  
Co2 Removal ◽  
Thermal Power Plants ◽  
Removal Technology

scholarly journals Analysis of CO2 Emissions in the Whole Production Process of Coal-Fired Power Plant

2021 ◽  
Vol 13 (19) ◽  
pp. 11084
Author(s):  
Han Wang ◽  
Zhenghui Fu ◽  
Shulan Wang ◽  
Wenjie Zhang
Keyword(s):  
Power Plant ◽  
Production Process ◽  
Co2 Emissions ◽  
Carbon Capture ◽  
Power Plants ◽  
Desirability Function ◽  
Pollutant Removal ◽  
Energy Structure ◽  
Lp Model ◽  
The Government

The linear programming (LP) model has been used to identify a cost-effective strategy for reducing CO2 emissions in power plants considering coal washing, pollutant removal, and carbon capture processes, thus CO2 emissions in different production processes can be obtained. The direct emissions (combustion emissions and desulfurization emissions) and indirect emissions (pollutant removal, coal washing, and carbon capture) of CO2 were all considered in the LP model. Three planning periods were set with different CO2 emission control desirability to simulate CO2 emissions of the different reduction requirements. The results can reflect the CO2 emissions across the whole production process of a coal-fired power plant overall. The simulation results showed that for a coal-fired power plant containing two 1000 MW ultra super-critical sets, when the desirability was 0.9, the CO2 total emissions were 2.15, 1.84, and 1.59 million tons for the three planning periods. The research results suggest that the methodology of LP combined with fuzzy desirability function is applicable to represent the whole production process of industry sectors such as coal-fired power plants. The government policy makers could predict CO2 emissions by this method and use the results as a reference to conduct effective industrial and energy structure adjustment.

Strategies for Integration of Advanced Gas and Steam Turbines in Power Generation Applications

2007 ◽  
Author(s):  
Justin J. Zachary
Keyword(s):  
Power Generation ◽  
Gas Turbines ◽  
Power Plants ◽  
Electrical Power ◽  
Cost Effective ◽  
Combined Cycle ◽  
Pollutant Removal ◽  
Steam Turbines ◽  
Turbine Cooling ◽  
Removal Technologies

Combined cycle power plants (CCPPs) using fossil fuel generate the cleanest and most efficient form of electrical power. CCPP technologies have evolved significantly in providing better, more cost-effective products: gas turbines (GTs), steam turbines (STs), heat recovery steam generators (HRSGs), heat sinks, pollutant removal technologies, balance of plant (BOP), water treatment and fuel treatment equipment, etc. A major reason for these improvements was the introduction of the G and H technologies for gas turbines, in which an inseparable thermodynamic and physical link was created between the primary and secondary power generation systems by using steam instead of air, in a closed loop to perform most (or all) turbine cooling activities.

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