The effect of coal rank and carbonization temperature on SO2 adsorption properties of coal chars

Martyniuk, H.; Więckowska, Jadwiga

doi:10.1016/s0016-2361(97)00076-8

Cited by 14 publications

(10 citation statements)

References 8 publications

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“…Figure 13 shows the relationship between Oxygen content and vitrinite reflectance (R o;max ). Figure 13 shows the relationship between oxygen content and vitrinite reflectance: Qin et al 2007;Chang et al 2008;Lin et al 2013)-152, English(Allardice andEvans 1971;Bhattacharyya 1972;Gan et al 1972;Joubert et al 1973Joubert et al , 1974Nandi and Walker 1975;Reucroft and Patel 1986;Banerjee 1988;Giuliani et al 1991;DeGance et al 1993;Chaback et al 1996;Martyniuk and Wiȩckowska 1997;Fitzgerald et al 2005;Dai et al 2006;Siemons et al 2007;Majewska and Ziętek 2007;Day et al 2008;Pone et al 2009;Radliński et al 2009;Majewska et al 2009;Kędzior 2009;Majewska et al 2010;Battistutta et al 2010;Gensterblum et al 2010;Kim et al 2011;Taraba 2011;Sakurovs 2012;Hao et al 2013)-220) Effects of coal rank on physicochemical properties of coal and on methane adsorption 141 …”

Section: Oxygen Content Effect On Adsorption Capacitymentioning

confidence: 99%

Effects of coal rank on physicochemical properties of coal and on methane adsorption

Cheng

Jiang

Zhang

et al. 2017

Int J Coal Sci Technol

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For the thorough research on coal metamorphism impact on gas adsorption capacity, this paper collected and summarized parameters of experimental adsorption isotherms, coal maceral, proximate analysis and ultimate analysis obtained from National Engineering Research Center of Coal Gas Control and related literatures at home and abroad, systematically discussed the coal rank effect on its physicochemical properties and methane adsorption capacity, in which the coal rank was shown in Vitrinite reflectance, furthermore, obtained the Semi-quantitative relationship between physicochemical properties of coal and methane adsorption capacity.

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Section: Oxygen Content Effect On Adsorption Capacitymentioning

confidence: 99%

Effects of coal rank on physicochemical properties of coal and on methane adsorption

Cheng

Jiang

Zhang

et al. 2017

Int J Coal Sci Technol

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“…Several works on the adsorption of heavy metals using activated carbon prepared from various low-cost precursors have been reported (Kumar, 2006 ). In addition, the potential of coal and coal fly ash as adsorbents has been investigated (Gangoli et al, 1975 ; Grover and Narayanaswamy, 1982 ; Yadera et al, 1987 ; Moreno-Castilla et al, 1994 ; Martyniuk and Wieckowska, 1997 ; Menkiti and Onukwuli, 2011 ). Various research works have similarly been conducted on the use of blended adsorbents for wastewater effluent treatment (Panday et al, 1984 ; Nordiana and Siti, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Evaluation of Adsorbents from Coal and Irvingia gabonensis Seed Shell for the Removal of Cd(II) and Pb(II) Ions from Aqueous Solutions

2018

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Cd(II) and Pb(II) ions removal using adsorbents prepared from sub-bituminous coal, lignite, and a blend of coal and Irvingia gabonensis seed shells was investigated. Fourier transform infrared, scanning electron microscope and X-ray fluorescence analyses implicated hydroxyl, carbonyl, Al2O3, and SiO2 as being responsible for attaching the metal ions on the porous adsorbents. The optimum adsorption of carbonized lignite for the uptake of Cd(II) and Pb(II) ions from aqueous media were 80.93 and 87.85%, respectively. Batch adsorption was done by effect of adsorbent dosage, pH, contact time, temperature, particle size, and initial concentration. Equilibrium for the removal of Pb(II) and Cd(II) was established within 100 and 120 min respectively. Blending the lignite-derived adsorbent with I. gabonensis seed shell improved the performance significantly. More improvement was observed on modification of the blend using NaOH and H3PO4. Pb(II) was preferentially adsorbed than Cd(II) in all cases. Adsorption of Cd(II) and Pb(II) ions followed Langmuir isotherm. The adsorption kinetics was best described by pseudo-second order model. The potential for using a blend of coal and agricultural byproduct (I. gabonensis seed shell) was found a viable alternative for removal of toxic heavy metals from aqueous solutions.

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“…As seen in Figure 5b, the highest adsorption capacities were at the lowest temperature for all samples and they decreased as the temperature increased. It is well established that lower temperatures are more conducive to adsorption [13,30,[32][33][34]. After this initial fast adsorption period, the maximum amount of SO 2 adsorbed was achieved after about 15 min for all samples (at which point, the mass remained constant for all samples for the next~40 min).…”

Section: Ability Of Semi-coke Sorbents To Adsorb Somentioning

confidence: 85%

“…Kisiela et al compared the adsorption abilities of activated lignite fly ash and industrially available sorbents at 100 • C with a maximum of 4.5 mg SO 2 per g of sample on activated coke [35], which is used industrially in hazardous waste plants [36]. Martyniuk et al note an adsorption capacity of up to 30 mg/g of SO 2 at 20 • C and 20 mg/g of SO 2 at 100 • C onto a char produced from ortho-coking coal at 600 • C [32]. As such, the semi-coke sorbents produced here at low temperature demonstrate higher adsorption capacities than many previously demonstrated waste-to-sorbent converted materials.…”

Section: Ability Of Semi-coke Sorbents To Adsorb Somentioning

confidence: 99%

Experimental and Computational Demonstration of a Low-Temperature Waste to By-Product Conversion of U.S. Oil Shale Semi-Coke to a Flue Gas Sorbent

et al. 2018

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The volatility of crude oil prices incentivizes the use of domestic alternative fossil fuel sources such as oil shale. For ex situ oil shale retorting to be economically and environmentally viable, we must convert the copious amounts of semi-coke waste to an environmentally benign, useable by-product. Using acid and acid + base treatments, we increased the surface area of the semi-coke samples from 15 m2/g (pyrolyzed semi-coke) to upwards of 150 m2/g for hydrochloric acid washed semi-coke. This enhancement in porosity and surface area is accomplished without high temperature treatment, which lowers the overall energy required for such a conversion. XRD analysis confirms that chemical treatments removed the majority of dolomite while retaining other carbonate minerals and maintaining carbon contents of approximately 10%, which is greater than many fly ashes that are commonly used as sorbent materials. SO2 gas adsorption isotherm analysis determined that a double HCl treatment of semi-coke produces sorbents for flue gas treatment with higher SO2 capacities than commonly used fly ash adsorbents. Computational fluid dynamics modeling indicates that the sorbent material could be used in a fixed bed reactor to efficiently remove SO2 from the gas stream.

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The effect of coal rank and carbonization temperature on SO2 adsorption properties of coal chars

Cited by 14 publications

References 8 publications

Effects of coal rank on physicochemical properties of coal and on methane adsorption

Effects of coal rank on physicochemical properties of coal and on methane adsorption

Preparation and Evaluation of Adsorbents from Coal and Irvingia gabonensis Seed Shell for the Removal of Cd(II) and Pb(II) Ions from Aqueous Solutions

Experimental and Computational Demonstration of a Low-Temperature Waste to By-Product Conversion of U.S. Oil Shale Semi-Coke to a Flue Gas Sorbent

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