Comparative analysis of agricultural materials influenced by anaerobic fermentation for biogas production in terms of ash melting behavior

Biomass analysis for combustion applications – case study scenarios

“…For comparison reasons there will be added two other different materials previously used for analysis purposes in order to observe a basic comparison relative to chemical properties [32] but having in mind the fact that the main focus is made on the first two materials used for laboratory determinations (positions 1 and 2 in the next tables). It can be observed from table 2 that the ash content of the two studied materials is relatively low, which represents a good indicator of combustion use due to the fact that there are low quantities of residual materials after the process.…”

Characterization of ashes from greenhouse crops plant biomass residues using X‐ray fluorescence analysis and X‐ray diffraction

“…The identification of MgO, only present in this leached sample, can be associated with a previous decomposition process of the complex apatite precursor and dolomite. Arvelakis et al suggested that the treatment of agricultural residues with tap water produces a partial removal of the inorganic constituents included in the biomass, such as K, Na, Cl, and S, partly or mainly as water‐soluble salts, and thought to be responsible for the formation of ash problems during the thermal treatment of biomass, as reported in the literature . Carrillo et al, studying sorghum biomass, found that washing the biomass with tap water improved its quality for combustion, with significant reduction of K and Cl in the ashes.…”

“…Arvelakis et al [15] suggested that the treatment of agricultural residues with tap water produces a partial removal of the inorganic constituents included in the biomass, such as K, Na, Cl, and S, partly or mainly as water-soluble salts, and thought to be responsible for the formation of ash problems during the thermal treatment of biomass, as reported in the literature. [10][11][12][21][22][23][24] Carrillo et al, [31] studying sorghum biomass, found that washing the biomass with tap water improved its quality for combustion, with significant reduction of K and Cl in the ashes. Several papers studied the biomass ashes using XRD for mineral identification of the thermal-treated products.…”

“…It should be noted that biomass conversion technologies can consist of pyrolysis and gasification of the renewable energy in order to produce higher value fuels, that is, oil liquids, hydrocarbon‐rich gases, and/or hydrogen, with a sustainable waste management practice. Previous studies have focused on physical, chemical, and thermal characteristics of ashes produced by coal combustion or gasification . However, investigations on greenhouse crops plant biomass residues and their ashes have been not performed until now.…”

“…Previous studies have focused on physical, chemical, and thermal characteristics of ashes produced by coal combustion or gasification. [6,[9][10][11][12][13][14][15][16][17][18][20][21][22][23][24][25] However, investigations on greenhouse crops plant biomass residues and their ashes have been not performed until now. This subject is a novelty, being essential to evaluate the thermal behavior as biomass resource and to know the formation and kind of ashes produced by thermal treatments, in particular for their potential applications.…”