Emissions From Waste-to-Energy: A Comparison With Coal-Fired Plants

2003 ◽  
Author(s):  
Dionel O. Albina ◽  
Nickolas J. Themelis
Keyword(s):  
Particulate Matter ◽  
Sulfur Dioxide ◽  
Nitrogen Oxides ◽  
Hydrogen Chloride ◽  
Power Plants ◽  
Electrical Energy ◽  
Flue Gases ◽  
Waste To Energy ◽  
Energy Output ◽  
Cadmium Lead

Nationwide data of the emissions from waste-to-energy and coal-fired power plants arecompared. The emissions of sulfur dioxide and hydrogen chloride, particulate matter, nitrogen oxides and trace elements, such as cadmium, lead and mercury are compared, both in terms of thermal energy input and electrical energy output. The results of the study have shown that emissions of sulfur dioxide, particulate matter and nitrogen oxides were lower from waste-to-energy (WTE) facilities than from coal-fired plants. Hydrogen chloride emissions are higher in WTE flue gases. Emissions of cadmium, lead and mercury from WTE and coal-fired plants are nearly the same.

scholarly journals Impact of Control Measures on Nitrogen Oxides, Sulfur Dioxide and Particulate Matter Emissions from Coal-Fired Power Plants in Anhui Province, China

Atmosphere ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 35 ◽  
Author(s):  
Haitao Dai ◽  
Dawei Ma ◽  
Renbin Zhu ◽  
Bowen Sun ◽  
Jun He
Keyword(s):  
Particulate Matter ◽  
Sulfur Dioxide ◽  
Nitrogen Oxides ◽  
River Basin ◽  
Power Plants ◽  
Air Pollutant ◽  
Control Measures ◽  
Pollutant Emissions ◽  
Huai River ◽  
The Impact

Anhui is one of the highest provincial emitters of air pollutants in China due to its large coal consumption in coal-fired plants. In this study, the total emissions of nitrogen oxides (NOx), sulfur dioxide (SO2) and particulate matter (PM) from coal-fired power plants in Anhui were investigated to assess the impact of control measures on the atmospheric emissions based upon continuous emission monitoring systems (CEMS). The total NOx, SO2 and PM emissions significantly decreased from 2013 to 2017 and they were estimated at 24.5 kt, 14.8 kt and 3.0 kt in 2017, respectively. The emission reductions of approximately 79.0%, 70.1% and 81.2% were achieved in 2017 compared with a 2013 baseline, respectively, due to the application of high-efficiency emission control measures, including the desulfurization, denitration and dust-removing devices and selective catalytic reduction (SCR). The NOx, SO2 and PM emission intensities were 0.125 g kWh−1, 0.076 g kWh−1 and 0.015 g kWh−1 in 2017, respectively, which were lower than the average of national coal-fired units. The coal-fired units with ≥600 MW generated 80.6% of the total electricity amount while they were estimated to account for 70.5% of total NOx, 70.1% of total SO2 and 71.9% of total PM. Their seasonal emissions showed a significant correlation to the power generation with the maximum correlation found in summer (July and August) and winter (January and December). The major regional contributors are the cities along the Huai River Basin and Yangtze River Basin, such as Huainan, Huaibei, Tongling, Maanshan and Wuhu, and the highest emission occurred in Huainan, accounting for approximately 26–40% of total emission from all the power plants. Our results indicated that the application of desulfurization, denitration and dust-removing devices has played an important role in controlling air pollutant emissions from coal-fired power plants.

scholarly journals REVIEW OF TECHNOLOGIES FOR REDUCING OF NITROGEN OXIDES EMISSIONS ON COAL-FIRED POWER PLANTS

2019 ◽  
pp. 50-59
Author(s):  
O.M. Kolomiets
Keyword(s):  
Nitrogen Oxides ◽  
Power Plants ◽  
Gas Flow ◽  
Treatment Plant ◽  
Electrical Energy ◽  
Water Soluble ◽  
Flue Gases ◽  
Oxidation Reactions ◽  
Metal Compounds ◽  
Gas Cleaning

The paper discusses the technologies of reducing the concentration of nitrogen oxides in the exhaust flue gases during the combustion of coal in the boiler units of power plants that produce heat and electrical energy. According to the results of the analysis, the influence of the method of oxidizing gaseous nitrogen oxides on the efficiency of the treatment plant was revealed. It has been established that during the reconstruction of the gas cleaning system, the advantage is in the technology in which, at the first stage, a gaseous oxidizer is added to the gas flow to convert nitric oxide into heavier water-soluble compounds. At the second stage, an aqueous solution of alkali metal compounds or ammonia is injected into the gas mixture for chemical bonding of the products of oxidation reactions. Thus, this technology allows reducing the concentration of nitrogen oxides in flue gases by 90–95% and meeting the requirements of regulatory documents on emissions of pollutants into the environment. Bibl. 11, Fig. 4, Tab. 5.

scholarly journals Technical and Economic Analysis of Municipal Solid Waste Potential for Waste to Energy Plant (Case Study: Jatibarang Landfill Semarang, Central Java, Indonesia)

2020 ◽  
Vol 190 ◽  
pp. 00027
Author(s):  
Mohammad Soleh ◽  
Hadiyanto Hadiyanto ◽  
Jaka Windarta ◽  
Olga Anne ◽  
Roy Hendroko Setyobudi ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Power Plants ◽  
Net Present Value ◽  
Landfill Gas ◽  
Electrical Energy ◽  
Economic Feasibility ◽  
Waste To Energy ◽  
Intergovernmental Panel ◽  
Waste Dumps

Municipal solid waste (MSW) is still a serious problem in Indonesia. As well as following up on the Indonesian Government’s commitment to reduce carbon emissions, a Presidential decree Perpres Number 18 of 2016 concerning the Acceleration of the Development of Waste-Based Power Plants was made. It is expected that the construction of Waste-Based Power Plants from landfills can reduce the budget deficit in handling municipal waste while maintaining environmental preservation. This research calculates the potential of landfill gas that can be produced from the landfill waste dumps of Jatibarang, as well as the capacity of electrical energy that can be produced. Furthermore, with several types of plant scenarios used, it can be seen the economic feasibility of the construction of a Waste Based Power Plant in Jatibarang landfill. The landfill gas potential and economic feasibility for this study are calculated using the Intergovernmental Panel on Climate Change (IPCC) Inventory Software and LFG-CostWeb from LandGEM. The results showed that only from the electricity sale Standard Reciprocating Engine-Generator Set project may generate a break even in the 6 yr after the operation begins and value of the net present value is USD 755 664 for 15 yr project lifetime.

The Use of Technogenic Waste to Clean the Flue Gases of Thermal Devices from Harmful Substances

2019 ◽  
Vol 23 (6) ◽  
pp. 4-7
Author(s):  
A.M. Pogodaev ◽  
A.F. Shimansky ◽  
Yu.I. Storozhev ◽  
Ya.V. Kazantsev ◽  
V.S. Zlobin
Keyword(s):  
Sulfur Dioxide ◽  
Flue Gas ◽  
Power Plants ◽  
Thermal Power ◽  
Fixed Bed ◽  
Flue Gases ◽  
Alumina Production ◽  
Laboratory Installation ◽  
Gas Cleaning ◽  
Industrial Experiments

The thermodynamics of the process of calcium sulfate decomposition is considered. An adsorbent for cleaning flue gases from sulfur dioxide in the form of sludge from alumina production is proposed. Conducted semi-industrial experiments on cleaning the flue gases of small thermal power plants and boiler houses from sulfur dioxide using a laboratory installation. Established high (more than 90%) the effectiveness of the proposed adsorbent. The unique possibility of flue gas cleaning from nitrogen oxides of thermal devices using lignite fuel is revealed. A scheme of sequential flue gas cleaning in a suspended and fixed bed of the adsorbent is proposed.

Selective absorption of hydrogen chloride from flue gases in the presence of sulfur dioxide

1984 ◽  
Vol 3 (3) ◽  
pp. 183-187 ◽  
Author(s):  
W. S. Kyte ◽  
J. Bettelheim ◽  
N. E. Nicholson ◽  
J. Scarlett
Keyword(s):  
Sulfur Dioxide ◽  
Hydrogen Chloride ◽  
Flue Gases ◽  
Selective Absorption ◽  
Absorption Of Hydrogen

scholarly journals Investigation of the Sorption Properties of Ore Materials for the Removal of Sulfur Dioxide from Exhaust Flue Gases of Power Plants

2015 ◽  
Vol 17 (2) ◽  
pp. 137 ◽  
Author(s):  
N.V. Shikina ◽  
S.R. Khairulin ◽  
N.A. Rudina ◽  
T.N. Teryaeva ◽  
E.S. Mikhaylova ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Physicochemical Parameters ◽  
Power Plants ◽  
Flue Gases ◽  
Gulf Of Finland ◽  
Strength Analysis ◽  
Natural Material ◽  
Sorptive Capacity ◽  
X Ray ◽  
The Gulf Of Finland

The prospects of using a natural material – ferromanganese nodules (FMN) from<br />the Gulf of Finland – as the SO2 adsorbent are discussed. The starting material was<br />studied as pellets and powder using X-ray fluorescence spectroscopy, XRD, BET,<br />and mechanical strength analysis; dependences of physicochemical parameters of<br />the material on heat treatment at 100-1000 ºC were found. FMN samples were tested in the process of SO2 sorption. The sorptive capacity of FMN samples for SO2 was found to increase with humidity of adsorbents; FMN samples with a humidity above 40% were shown to be promising for the removal of sulfur dioxide from gases.

scholarly journals Methods for reducing nitrogen oxide emissions in steam generators of thermal power plants

2021 ◽  
Vol 81 (1) ◽  
pp. 111-116
Author(s):  
A. Plevako ◽  
Keyword(s):  
Nitrogen Oxides ◽  
Nitrogen Oxide ◽  
Steam Generator ◽  
Power Plants ◽  
Thermal Power ◽  
Environmental Safety ◽  
Flue Gases ◽  
Thermal Power Plants ◽  
Steam Generators ◽  
Nitrogen Oxide Emissions

Main problem: Ensuring environmental safety of thermal power plants by reducing emissions of harmful substances, in particular nitrogen oxides. When all types of fossil fuel, including solid fuel, are burned, nitrogen oxides are formed in the boilers of TPPs. The sources of their formation are air nitrogen and nitrogen- containing components of the organic matter of the fuel. As you know, they adversely affect the health of humans, plants and animals. Therefore, it became necessary to consider and analyze methods to reduce these emissions. Purpose: To review and analyze various ways to reduce nitrogen oxide emissions and propose a new scheme for reducing these emissions by recirculating flue gases. Methods: This is achieved due to the fact that in the known method for purifying the flue gases of steam generators from nitrogen oxides by lowering the temperature in the furnace of the steam generator by supplying flue gases with a temperature below the temperature in the furnace of the steam generator, it is proposed that the flue gases be fed into the furnace of the steam generator after ash cleaning. At the same time, as a result of the supply of recirculated gas cooled after filtering and passing through the main smoke exhauster into the combustion chamber, having a temperature of 110-170 °C, in comparison with the initial version, a greater decrease in temperature in the furnace of the steam generator occurs, which in turn leads to a decrease in the flue gases of oxides nitrogen, since the chemical reaction of their formation goes with the absorption of heat. Results and their importance: The technical result at the proposed method of cleaning from nitrogen oxides is to reduce the consumption of electricity by eliminating the collateral wear of the recirculation gas duct, due to the cleaning of time gases from ash (a requirement of the rules of technical operation of PTE).

Effect of nitrogen oxides on the sulfur dioxide removal from flue gases under the action of pulsed electron beams

2001 ◽  
Vol 27 (6) ◽  
pp. 484-486
Author(s):  
G. V. Denisov ◽  
D. L. Kuznetsov ◽  
Yu. N. Novoselov ◽  
R. M. Tkachenko
Keyword(s):  
Sulfur Dioxide ◽  
Nitrogen Oxides ◽  
Electron Beams ◽  
Flue Gases ◽  
Sulfur Dioxide Removal
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