Biogasification and combustion reactions of Turkish lignites: adsorption behavior and biogasification of Soma lignite and co-combustion of Beypazari lignite with biomass
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Baysal, Mustafa and Kocabaş, Özlem Züleyha and Okyay, Firuze and Yürüm, Alp and Duygun, Fırat and İnan, Sedat and Yürüm, Yuda (2012) Biogasification and combustion reactions of Turkish lignites: adsorption behavior and biogasification of Soma lignite and co-combustion of Beypazari lignite with biomass. In: 11th International Biorelated Polymer Symposium / 243rd National Spring Meeting of the American-Chemical-Society (ACS), San Diego, USA
In this study, our primary objective is to understand CBM capacity of the Soma coal basin. For this reason, porosity of the coal samples must be determined. Usually, surface area and the porosity of the materials can be calculated through the N2 physical sorption experiment, in this method entire relative pressure range (10-8 to 1) can be analyzed without using high pressure equipments. However, for microporous materials like carbon materials and zeolites physical sorption occurs at very low relative pressure ranges (10-8 to 10-3) and experiments that are conducted with N2 are less reliable due to the low diffusion rate and adsorption equilibrium in the pores between 0,5 to 1 nm at 77 K. It is also known that specifically for carbon materials experiments that are conducted at low temperatures such as N2 sorption causes pore shrinkage that leads to the low sorption equilibrium.
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