Defining the Mathematical Dependencies of NO&lt;sub&gt;x&lt;/sub&gt; and CO Emission Generation after Biomass Combustion in Low-Power Boiler

Lukáč, Ladislav; Kizek, Ján; Jablonský, Gustáv; Karakash, Yevgeniy

doi:10.2478/ceer-2019-0031

Cited by 14 publications

(12 citation statements)

References 12 publications

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“…No clear trend can generally be drawn in CO emissions, being often more dependent on air excess and distribution than on the co-combustion ratio, as stated by Skodras et al (2002) and [44,188]. Sami et al (2001) [8], on the other hand, summed up the results of several industrial co-combustion trials and concluded lower CO emissions of most of them than in sole fossil fuel combustion, along with SO x and NO x emission decrease.…”

Section: Emissions Of Greenhouse Gases and Other Pollutantsmentioning

confidence: 99%

Advances in Biomass Co-Combustion with Fossil Fuels in the European Context: A Review

et al. 2021

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Co-combustion of biomass-based fuels and fossil fuels in power plant boilers, utility boilers, and process furnaces is a widely acknowledged means of efficient heat and power production, offering higher power production than comparable systems with sole biomass combustion. This, in combination with CO2 and other greenhouse gases abatement and low specific cost of system retrofit to co-combustion, counts among the tangible advantages of co-combustion application. Technical and operational issues regarding the accelerated fouling, slagging, and corrosion risk, as well as optimal combustion air distribution impact on produced greenhouse gases emissions and ash properties, belong to intensely researched topics nowadays in parallel with the combustion aggregates design optimization, the advanced feed pretreatment techniques, and the co-combustion life cycle assessment. This review addresses the said topics in a systematic manner, starting with feed availability, its pretreatment, fuel properties and combustor types, followed by operational issues, greenhouse gases, and other harmful emissions trends, as well as ash properties and utilization. The body of relevant literature sources is table-wise classified according to numerous criteria pertaining to individual paper sections, providing a concise and complex insight into the research methods, analyzed systems, and obtained results. Recent advances achieved in individual studies and the discovered synergies between co-combusted fuels types and their shares in blended fuel are summed up and discussed. Actual research challenges and prospects are briefly touched on as well.

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Section: Emissions Of Greenhouse Gases and Other Pollutantsmentioning

confidence: 99%

Advances in Biomass Co-Combustion with Fossil Fuels in the European Context: A Review

et al. 2021

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“…Так в роботі [2] доведено, що питомі на одиницю теплової енергії викиди енергетичних установок залежать не тільки від виду палива, а і від потужності установки. В багатьох роботах проаналізовані викиди парових і водяних котлів при використанні різних типів енергетичних ресурсів -вугілля [3,4], пелети [5], біопаливо [6]. Але у цих роботах розглядаються деякі стаціонарні умови роботи парових і водяних котлів без урахування можливих змін як умов експлуатації так і параметрів котельних установок, що можуть настроюватися.…”

Section: аналіз останніх досліджень і публікаційunclassified

Integrated Assessment of Environmental and Economic Efficiency of Gas Boiler Operating Modes

Ponomarenko

Katkov

Semenenko

2020

MEC

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A thermal energy is one of the most significant sources of environmental impact.This is a consequence of both the use of mostly non-renewable natural resources and environmental pollution from thermal power plants. The intensity of this impact depends on many factors, namely the purpose, power, type of fuel used and operating mode. Existing studies have established links between emissions and characteristics such as power and fuel type for stationary operating conditions. At the same time, changes in operating conditions have a significant impact on environmental and economic characteristics. This article is devoted to establishing the relationship between the operational characteristics of gas boilers and their environmental and economic efficiency. The analysis was based on the field data obtained from steam and water boilers that are in commercial operation and uses the natural gas. It was found that for steam and water boilers, there is a well-conditioned non-linear relationship between the technological parameters of boiler operation, in particular gas consumption, the percentage of boiler load, the amount and temperature of flue gases with indicators of pollutants entering the atmosphere. The most significant factor affecting the environmental and economic characteristics of boilers is the percentage of load of boilers. The nature of the dependency is determined by the type of boiler and the setting mode. These dependences with a high degree of conditionality have a parabolic character, which makes it possible to assume the existence of adjustment modes that minimize environmental and economic costs. For steam and water boilers, the dependence of environmental impact on the percentage of load is direct. But for steam boilers in the range of data that were studied, it has a monotonous character, that is, it does not have an extremum point. For water boilers, it is possible to find the optimal loading level that minimizes environmental costs, but to confirm this assumption, additional research is needed at low boiler loading levels. The proposed method can be used to determine the operating modes of boilers and their settings, taking into account environmental and economic criteria. Keywords: water gas boilers, steam gas boilers, operating modes, environmental and economic characteristics.

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“…The noticeable climate changes force intensive efforts to reduce the effect of global warming, which in the first place translates into the development of modern, energy-saving technologies and stimulating the implementation of renewable energy sources and reduction of fossil fuel consumption (Raybould et al 2020). Intensive development is observed in the field of renewable energies including solar, wind, tidal energy, fuel cells, biomass energy and waste heat (Lukáč et al 2019). The development of these energy sources provides more efficient methods of both generating energy and reducing production costs as well as reduces or even completely eliminates the need for fossil fuels, which contribute to global warming (Rinaldi et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Integration of waste biomass thermal processing technology with a metallurgical furnace to improve its efficiency and economic benefit

Szwaja

Zajemska

Szwaja

et al. 2021

Clean Techn Environ Policy

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The article presents innovative technology which integrates a metallurgical pusher-type furnace with a waste heat recovery system that consisted of a reactor for torrefaction and pyrolysis of waste biomass. The technology is designed for utilizing both liquefied and gaseous by-products (torgas, pyrolysis gas and condensate denoted as TPC) obtained from torrefaction and pyrolysis of waste biomass. TPC is considered to be applied as an additional fuel for a metallurgical furnace as an example of effective energy management in metallurgical industry. In detail, the technology contains waste heat recovery unit installed on the furnace smoke stack as the heat source for the pyrolysis/torrefaction reactor. The analysis was carried out for a pusher furnace, fed optionally with either natural gas or coke gas. Share of this gaseous/liquid TPC fuel from waste in the total fuel mixture fed to the furnace was varied from 5 to 15% by volume. Practical usefulness of TPC fuel was tested on a specially constructed test stand. Financial analysis in energy consumption and economy of using the obtained TPC fuel for co-combustion with coke gas in the metallurgical pusher furnace was carried out on the basis of data from a steel sheet roller combined with the pusher furnace located in one of large steel works. It was shown that the use of this TPC fuel derived from thermal treatment of waste biomass and other organic substances can be considered an effective method of reducing production costs in the analyzed steel company and can lead to increase in the attractiveness of their products and thus strengthen their competitiveness on the global market. Graphic abstract

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Defining the Mathematical Dependencies of NO<sub>x</sub> and CO Emission Generation after Biomass Combustion in Low-Power Boiler

Cited by 14 publications

References 12 publications

Advances in Biomass Co-Combustion with Fossil Fuels in the European Context: A Review

Advances in Biomass Co-Combustion with Fossil Fuels in the European Context: A Review

Integrated Assessment of Environmental and Economic Efficiency of Gas Boiler Operating Modes

Integration of waste biomass thermal processing technology with a metallurgical furnace to improve its efficiency and economic benefit

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