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S. Arvelakis F. J. Frandsen E. G. Koukios 《Journal of Thermal Analysis and Calorimetry》2007,88(3):769-774
The ash material generated from the MSW incineration contains large amounts of alkali metals, heavy metals, chlorine and sulfur
mainly deposited as inorganic salts and/or oxides on the surface of the Si-rich ash particles. In this work, the composition
and gas-phase release characteristics of salt material extracted from MSW ash particles using a six-stage leaching process
is studied using simultaneous thermal analysis (STA). The produced results provide useful information regarding the composition
of the salt material and its melting behavior that is considered to play an important role to deposition and corrosion problems
at MSW incinerators. The results may be used to model the deposition process and to the better understanding of the corrosion
process during MSW incineration. 相似文献
2.
Arvelakis S. Gehrmann H. Beckmann M. Koukios E. G. 《Journal of Thermal Analysis and Calorimetry》2003,72(3):1019-1030
In this paper, the ash behaviour of some typical Mediterranean agricultural residues, such as peach stones, cotton gin wastes
and grape residues is studied via simultaneous, (DTA/TG), thermal analysis methods. Furthermore, the effect of various pre-treatment
techniques, such as fractionation and leaching, on the ash behaviour of the specific residues is also studied. Fractionation
improves some of the main biomass properties such as calorific value, volatiles and ash content but deteriorates significantly
the ash chemical composition of the remaining ash fraction. Leaching improves both the main properties of the treated biomass
samples and the chemical composition of the remaining ash fraction, while the combination of the two pre-treatment methods
results in a merge of their main advantages leading to an even larger improvement of the ash thermal behaviour.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
3.
Arvelakis S. Sotiriou C. Moutsatsou A. Koukios E. G. 《Journal of Thermal Analysis and Calorimetry》1999,56(3):1271-1278
Two types of agricultural residues (wheat straw and olive residue) in untreated and pretreated (fractionation, leaching) form
were tested as concerns their ash melting behaviour during fluidized bed combustion and gasification by means of thermal analysis
techniques. The techniques applied included DSC, simultaneous DSC/TG and TG-MS for the determination of low-temperature ash
melts and losses caused by the volatilization of alkali material. In combination with ash elemental analyses on the materials,
the applied techniques proved to offer valuable information for prediction of the ash behaviour in fluidized bed reactors.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
4.
Determining the melting behaviour of ashes from incineration plants via thermal analysis 总被引:2,自引:0,他引:2
Arvelakis S. Frandsen F. J. Dam-Johansen K. 《Journal of Thermal Analysis and Calorimetry》2003,72(3):1005-1017
The ash behaviour comprises one major obstacle towards the efficient utilization of municipal solid wastes, (MSW), in incineration
plants. The presence of large amounts of inorganic constituents such as alkali and alkali earth metals, chlorine, sulfur and
zinc increase significantly the ash reactivity and lead to severe ash-related problems such as fouling, slagging, corrosion
and erosion during their thermal treatment. In this paper, the melting behaviour of various ash fractions originating from
the incineration of MSW is studied using simultaneous, (DSC/TG), thermal analysis methods. The produced results provide the
basis for improved modelling of the ash behaviour during the incineration of MSW.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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