Generalized desorption equilibrium equation of lignite in a wide temperature and moisture content range

Pakowski, Z.; Adamski, Robert; Kokocińska, M.; Kwapisz, Stanisław

doi:10.1016/j.fuel.2011.06.044

Cited by 34 publications

(28 citation statements)

References 19 publications

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“…Apart from the food product the model is also used for different kind of adsorbents e.g. bentonite (Mihoubi and Bellagi 2006), nanoparticles (Ribeyre et al 2014) and lignite (Pakowski et al 2011) etc. The GAB model is an improvement of the BET theory and shares two of its constants (i) 'M m ' the monolayer capacity, and (ii) 'C' the analogous formulation of the BET constant C BET .…”

Section: Modelling Of Sorption Isothermsmentioning

confidence: 99%

Insights of water vapor sorption onto polymer based sorbents

et al. 2015

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Two polymer based sorbents PS-I and PS-II are analyzed for water sorption applications. Adsorption/desorption isotherms of water vapor onto PS-I and PS-II have been experimentally measured using a magnetic suspension adsorption measurement unit for adsorber temperature ranges 20-80°C and evaporator temperature ranges 2-73°C. The equilibrium adsorption uptake of water vapors corresponding to saturation condition at 30°C by PS-I and PS-II was found nearly 2 and 2.5 times higher than the conventional silica-gel, respectively. Adsorption data has been analyzed for various adsorption models which include Brunauer-Emmett-Teller (BET); Freundlich; DubininAstakhov (D-A); Oswin; and Guggenheim-Anderson-de Boer (GAB) model. The GAB and BET model give the good fit for relative pressure range of 0.10-0.90 and 0.05-0.35, respectively. At all adsorption temperatures of both sorbents, the monolayer uptake by the GAB model is found higher than the BET model. Effect of adsorption potential on adsorption uptake is highlighted in relation with water vapor adsorption mechanism. The isosteric heat of water vapor adsorption is determined for both sorbents using Clausius-Clapeyron equation.

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Section: Modelling Of Sorption Isothermsmentioning

confidence: 99%

Insights of water vapor sorption onto polymer based sorbents

et al. 2015

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“…Moisture in the coal causes problems in handling, storage, transportation, milling and burning [4,6]. In coal burning, an important part of energy is consumed to evaporate moisture inside the coal [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…In coal burning, an important part of energy is consumed to evaporate moisture inside the coal [5][6][7][8]. The burning of coal with high moisture content creates some problems such as insufficient combustion and additional exhaust discharge [8].…”

Section: Introductionmentioning

confidence: 99%

Drying kinetics of coarse lignite particles in a fixed bed

Pusat

Akkoyunlu

Erdem

et al. 2015

Fuel Processing Technology

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“…Due to the complicated lignitewater interactions, various aspects involving the forms of water present in low rank coals [16,17], physical-chemical structure of coal [18], migration of water during drying [19], coal structure changes during moisture loss [20], moisture re-adsorption [21], and effects of water removal on subsequent applications [22,23], were widely examined. Several characteristic techniques such as NMR [24], DSC [25] and FTIR [26] in determination and quantification of types of water and coal structures were also conducted.…”

Section: Introductionmentioning

confidence: 99%