Pyrolysis characteristics of coal and RDF blends in non-isothermal and isothermal conditions

Effect of mesophilic and thermophilic conditions on changes of physicochemical characteristics of smooth cordgrass via dry digestion process

“…It could be concluded that the values of activate energy and frequency factor ranged from 68.32 to 69.54 kJ/mol, from 3.30 × 10 3 to 31.15 × 10 3 s −1 , respectively; which belonged to the same range as the pyrolysis of mustard straw and stalk [19], and willow [20]. The values of activate energy in this study were slightly lower than the results obtained in pyrolysis of refuse derived fuel (RDF) [21] and marine microalgae [37], because the pyrolysis of biomass was directly impacted by the composition of raw material [37], RDF mainly consists of cellulosic and plastic components, and marine microalgae contains 61.32% crude protein, while in smooth cordgrass the cellulosic fraction is predominant.…”

“…The first-order kinetic model has been widely applied to the biomass pyrolysis in order to assess thermal behavior of various biomasses in different conditions [19][20][21]. In this study, the pyrolysis of smooth cordgrass was assumed to follow the first-order rate of decay.…”

Pyrolysis characteristics of glass fiber-reinforced plastic (GFRP) under isothermal conditions

“…In Table 1. While the GFRP heating value is similar to that of biomass and RDF, the coal and heavy oil heating values are higher than those of our sample [4]. The ash composition of GFRP is shown in Table 3, the values reported for a variety of low grade and hydrocarbon fuels in isothermal pyrolysis processes in a thermo-balance reactor (TBR) or a fluidized bed (FB) are described.…”

“…The activation energies for coal and oil shale are higher than those of biomass, reused-derive fuel (RDF), and sewage sludge. The former hydrocarbon-type compounds exhibit stronger bonding energy; the biomass and other low-grade fuels have relatively weak bond energies, including those due to ethers energy, 380-420 (kJ mol −1 ), and methyl group, 440 (kJ mol −1 ), than the bond energy for the aromatic compounds in a coal 1000 (kJ mol −1 ) [4][5][6]. Tar conversion from oil shale and coal required more heat energy [7,8].…”

Interaction between coal and distillation residues of coal tar during co-pyrolysis

“…However, the relatively dispersed distribution and poor quality of pyrolysis products due to the higher O/C atomic ratio have severely hampered the large scale harness of the biomass resources in China. Moreover, the interests in co-pyrolysis have also been focused on coal and various industrial wastes, such as waste plastic [18][19][20][21][22][23], petroleum residue [24,25], lube oil wastes [23,26,27], refuse [28,29], waste tire rubber [30], ferment residue [31], and printed circuit board [32]. Among these research works, most of them are concerned on not the yield and quality of pyrolysis oil/gas but the waste disposal and environmental protection.…”