Co-combustion of bituminous coal and biomass fuel blends: Thermochemical characterization, potential utilization and environmental advantage

Zhou, Chuncai; Liu, Guijian; Wang, Xiaojia; Qi, Cuicui

doi:10.1016/j.biortech.2016.06.134

Cited by 111 publications

(52 citation statements)

References 35 publications

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“…After hemicellulose and cellulose thermal decomposition, residual lignin decomposition was observed in both types of biomass. Lignin is a reinforcing component of the biomass cell wall, which gradually decomposes between 137 C and 667 C [18]. It has a thermally more stable complex structure than hemicellulose and cellulose, thus its total degradation occurs at higher temperatures [15,57,58].…”

Section: Pure Materialsmentioning

confidence: 99%

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Comparative study on combustion and oxy-fuel combustion environments using mixtures of coal with sugarcane bagasse and biomass sorghum bagasse by the thermogravimetric analysis

Galina¹,

Luna

Arce³

et al. 2019

Journal of the Energy Institute

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Biomass and coal have different physicochemical properties and thermal behavior. During the co-combustion of coal-biomass mixtures, their thermal behavior varies according to the percentage of each fuel in the mixture. Thereby, this research aims to characterize the thermal behavior of mixtures of coal, sugarcane bagasse, and biomass sorghum bagasse as biomass in simulated combustion (O 2 /N 2) and oxy-fuel combustion (O 2 /CO 2) environments. Experiments have been performed in duplicate on a thermogravimetric analyzer at heating rate of 10 C/min. A uniform granulometry was considered for all materials (63 mm) in order to ensure a homogeneous mixture. Four biomass percentages in the mixture (10, 25, 50 and 75%) have been studied. Based on thermogravimetric (TG) and thermogravimetric (DTG) analyses, parameters such as combustion index, synergism, and activation energy have been determined, as well as the combustion environment influence on these parameters. The results indicate that, although sugarcane bagasse has the lowest activation energy, the thermal behavior of both types of biomass is similar. Thus, biomass sorghum bagasse can be used as an alternative biomass to supply the power required during sugarcane off-season. For both mixtures, optimal results were obtained at 25% of biomass. By analyzing the environment influence on combustion behavior, the results indicate that when N 2 is replaced with CO 2 , it is observed an increase in reaction reactivity, a higher oxidation rate of materials and an improvement in evaluated parameters.

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Section: Pure Materialsmentioning

confidence: 99%

“…using mixtures of coal and biomass [17]. If compared to burning pure coal, the presence of biomass reduces CO 2 and other GHG emissions, such as NO x and SO x [18]. It should be noted, however, that even in smaller proportions, GHGs are still released into the environment during the co-combustion of coal and biomass mixtures.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on combustion and oxy-fuel combustion environments using mixtures of coal with sugarcane bagasse and biomass sorghum bagasse by the thermogravimetric analysis

Galina¹,

Luna

Arce³

et al. 2019

Journal of the Energy Institute

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“…The next essential parameter responsible for the reactivity of lignocellulose is the specific surface area of the material. It is known that the fine grinding of dry plant raw material affords an increase in the rate of the initial (heterogeneous) stage, for example, subsequent combustion, extraction, and acid or enzymatic hydrolysis of the polymers incorporated in cell walls (Akhtar, 1994;Brink, 1993;Brink, Merrimam, & Mixxon, 1987;Golyazimova et al, 2009aGolyazimova et al, , 2009bTaherzadeh & Karimi, 2008;Zhao et al, 2006;Zhou, Liu, Wang, & Qi, 2016).…”

Section: Principles Of the Mechanical And Mechanochemical Methods Amentioning

confidence: 99%

“…A direct relationship between the dispersity and process rate is observed in the case of the heterogeneous solid–gas reaction proceeding during the combustion of fine lignocellulose fuel (Lomovsky, Bychkov, Lomovsky, Logvinenko, & Burdukov, ; Luo, Xiao, Hu, Liu, & He, ; Piriou, Vaitilingom, Veyssière, Cuq, & Rouau, ; Zhou et al, ). An increase in transfer processes by a factor of several units is possible due to an increase in the reactive surface area and a decrease in the activation energy of oxidation reactions.…”

Section: Mechanical Pretreatment Of Plant Biomassmentioning

confidence: 99%

Current achievements in the mechanically pretreated conversion of plant biomass

Bychkov

Podgorbunskikh

Bychkova

et al. 2019

Biotech & Bioengineering

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At present, “mechanochemistry” is synonymous with “grinding,” according to the views of a significant number of scientists and technologists. Often, one comes across the opinion that “the less the particle size, the better.” The cases of considering chemical reactions occurring during pretreatment, as well as considering changes in the ultrastructure of cell walls are extremely rare. Also, the wrong choice of the type of mechanical impact and the equipment used in most cases leads to excessive consumption of electrical energy and reduce economic efficiency. The review presents the currently available published data on mechanically activated processes for the pretreatment of plant materials and shows that when using mechanical treatment, it is necessary to look more closely at the phenomena occurring, rather than reducing everything to the production of fine and ultrafine powders. As a result of mechanical action, active surface radicals can form, hydrothermal chemical processes can occur, and mechanocomposites can form. The role of interphase processes, changes in surface chemistry, related dimensional effects, and the disordering of the crystal structure and amorphization should be taken into account. In addition, the physicochemical insights in mechanical pretreatment make it possible to more efficiently use the energy delivered to the material, and, consequently, increase the economic efficiency of the activation process.

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“…Recent works reported that the co-combustion of OS or bituminous coal with biomass have good potential for energy production, with improved environmental impact [9][10][11][12]. The co-combustion of biomass wastes with solid fossil fuels has several advantages with respect to the direct combustion of solid fossil fuel, such as the reduction of the emissions of contaminant gases (e.g.…”

Section: Introductionmentioning

confidence: 99%

Pollutant gas emissions during the co-combustion of Oil Shales from Uruguay with biomass wastes

Torres¹,

Portugau²,

Cuña³

et al. 2019

Proceedings of the 4th World Congress on Momentum, Heat and Mass Transfer

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The composition of pollutant gases (CO2, CO and SO2) during the co-combustion of Oil Shale (OS) and biomass wastes was studied in real time through thermogravimetric analysis (TG) coupled with a Fourier-Transform Infrared Spectrometer (FTIR). OS samples are from Mangrullo Formation (Uruguay). Biomass wastes were mixed with the OS at ratios 25%, 50% and 75% in mass of OS. Results showed that the emissions of pollutants per energy content of the mixture are related with the volatile decomposition and char reacting stages. CO2 emissions are significant during the volatile decomposition and subsequently combustion stage at the temperature between 400 and 500 °C. The profiles of CO2 against temperature exhibits one or two peaks, depending on the OS content of the sample and these emissions purely increased with the carbon content in the blends. The concentrations of SO2 obtained by the TG analysis showed that the amount released increases as the OS content rise. This work showed that the adding of biomass waste to the OS can improve the gas quality as reduces. Generally, the results showed that samples between 0 and 50% of OS-biomass produces lowest total SO2 emissions.

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Co-combustion of bituminous coal and biomass fuel blends: Thermochemical characterization, potential utilization and environmental advantage

Cited by 111 publications

References 35 publications

Comparative study on combustion and oxy-fuel combustion environments using mixtures of coal with sugarcane bagasse and biomass sorghum bagasse by the thermogravimetric analysis

Comparative study on combustion and oxy-fuel combustion environments using mixtures of coal with sugarcane bagasse and biomass sorghum bagasse by the thermogravimetric analysis

Current achievements in the mechanically pretreated conversion of plant biomass

Pollutant gas emissions during the co-combustion of Oil Shales from Uruguay with biomass wastes

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