Postcombustion Measures for Cleaner Solid Fuels Combustion:  Activated Carbons for Toxic Pollutants Removal from Flue Gases

2005 ◽  
Vol 19 (6) ◽  
pp. 2317-2327 ◽  
Author(s):  
G. Skodras ◽  
Ir. Diamantopoulou ◽  
P. Natas ◽  
A. Palladas ◽  
G. P. Sakellaropoulos
Keyword(s):  
Activated Carbons ◽  
Flue Gases ◽  
Solid Fuels ◽  
Toxic Pollutants ◽  
Pollutants Removal

scholarly journals Lab-scale evaluation of possible mercury speciation in flue gas and mercury emission from combustion of pulverised solid fuels

2019 ◽  
Vol 201 ◽  
pp. 06001
Author(s):  
Maciej Cholewiński ◽  
Wiesław Rybak
Keyword(s):  
Flue Gas ◽  
Combustion Process ◽  
Flue Gases ◽  
Solid Fuels ◽  
Hard Coal ◽  
Scale Evaluation ◽  
Gaseous Products ◽  
Scale Method ◽  
Early Validation ◽  
Solid Biomass

In this work a new lab-scale method dedicated to the evaluation of both concentration and oxidation level of mercury in flue gases from pulverised fuel fired boiler was proposed. To detect the abovementioned parameters, 2 main steps need to be evaluated. Firstly, a calorimeter bomb is utilised - by a proper implementation of mass balance of mercury within substrates and products, the quantity of oxidised mercury in gaseous products can be evaluated. Then, to simulate solid fuel fired power unit and to calculate mercury concentrations in flue gases, one of the stoichiometric mathematical models of combustion process must be applied. Early validation of the method showed considerable differences between solid fuels in mercury oxidation efficiencies and concentrations in flue gasses. Four examined fuels (lignite, hard coal and 2 types of solid biomass) was investigated. Calculated mercury concentrations in raw flue gas (>700°C) varied between 4 and 75 µg/m3ref. The lowest quantity of oxidised forms ofHg in flue gases were identified in the case of investigated lignite (27% of total Hg), while significantly higher – for selected hard coal (72%) and one type of biomass (with high chlorine concentration; up to 98%).

Effective water/wastewater treatment methodologies for toxic pollutants removal: Processes and applications towards sustainable development

Chemosphere ◽  
2021 ◽  
Vol 280 ◽  
pp. 130595
Author(s):  
A. Saravanan ◽  
P. Senthil Kumar ◽  
S. Jeevanantham ◽  
S. Karishma ◽  
B. Tajsabreen ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Wastewater Treatment ◽  
Toxic Pollutants ◽  
Removal Processes ◽  
Pollutants Removal ◽  
Effective Water

Preparation and Evaluation of Coal-Derived Activated Carbons for Removal of Mercury Vapor from Simulated Coal Combustion Flue Gases

1998 ◽  
Vol 12 (6) ◽  
pp. 1061-1070 ◽  
Author(s):  
Hsing-Cheng Hsi ◽  
Shiaoguo Chen ◽  
Massoud Rostam-Abadi ◽  
Mark J. Rood ◽  
Carl F. Richardson ◽  
...  
Keyword(s):  
Coal Combustion ◽  
Activated Carbons ◽  
Mercury Vapor ◽  
Flue Gases ◽  
Preparation And Evaluation

scholarly journals Universal Installation for the integrated utilization of flue gases and wastewater from thermal power plants

2020 ◽  
Vol 178 ◽  
pp. 01062
Author(s):  
Sergey A. Glazyrin ◽  
Mikhail G. Zhumagulov ◽  
Zhanar A. Aydimbaeva ◽  
Abay M. Dostiyarov
Keyword(s):  
Carbon Dioxide ◽  
Power Plants ◽  
Thermal Power ◽  
Flue Gases ◽  
Solid Fuels ◽  
Sulfur Oxides ◽  
Thermal Power Plants ◽  
Cation Exchangers ◽  
Industrial Boilers ◽  
Integrated Utilization

For 30 years research has been carried out on the use of wastewater from thermal power plants and industrial boilers, as well as on the use and extraction of various components from flue gases such as carbon dioxide, sulfur and nitrogen. Technological solutions were developed and implemented in various productions at various times: use of acid-forming components of flue gases for the regeneration of cation exchangers; carbon dioxide from flue gases of 99.9% purity with “food” quality; technical nitrogen of 95-99 purity from flue gases; wastewater usage to increase the degree of sulfur oxides from flue gases. The article presents a technological solution for the integrated utilization of flue gases and wastewater from a thermal power plant with high-pressure boilers burning solid fuels.

scholarly journals Comparison of CO2 Separation Efficiency from Flue Gases Based on Commonly Used Methods and Materials

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 460
Author(s):  
Zenon Ziobrowski ◽  
Adam Rotkegel
Keyword(s):  
Membrane Separation ◽  
Separation Efficiency ◽  
Activated Carbons ◽  
Packed Column ◽  
Ceramic Membranes ◽  
Flue Gases ◽  
Co2 Removal ◽  
Experimental Conditions ◽  
Column Adsorption ◽  
Supported Ionic Liquid Membranes

The comparison study of CO2 removal efficiency from flue gases at low pressures and temperatures is presented, based on commonly used methods and materials. Our own experimental results were compared and analyzed for different methods of CO2 removal from flue gases: absorption in a packed column, adsorption in a packed column and membrane separation on polymeric and ceramic membranes, as well as on the developed supported ionic liquid membranes (SILMs). The efficiency and competitiveness comparison of the investigated methods showed that SILMs obtained by coating of the polydimethylsiloxane (PDMS) membrane with 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]) exhibit a high ideal CO2/N2 selectivity of 152, permeability of 2400 barrer and long term stability. Inexpensive and selective SILMs were prepared applying commercial membranes. Under similar experimental conditions, the absorption in aqueous Monoethanolamine (MEA) solutions is much faster than in ionic liquids (ILs), but gas and liquid flow rates in packed column sprayed with IL are limited due to the much higher viscosity and lower diffusion coefficient of IL. For CO2 adsorption on activated carbons impregnated with amine or IL, only a small improvement in the adsorption properties was achieved. The experimental research was compared with the literature data to find a feasible solution based on commercially available methods and materials.

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