Characterization of the mechanism of gasification of a powder river basin coal with a composite catalyst for producing desired syngases and liquids

Monterroso, Rodolfo; Fan, Maohong; Argyle, Morris D.; Varga, Krisztina; Dyar, Darby; Tang, Jinke; Sun, Qiming; Towler, Brian F.; Elliot, Korth Wade; Kammen, Daniel M.

doi:10.1016/j.apcata.2014.01.007

Cited by 24 publications

(12 citation statements)

References 37 publications

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“…In addition to alkaline and alkaline-earth metal compounds, oxides and salts of transition metals, like Fe, also have catalytic action, which was shown in the studies of Domazetis et al [30], Popa et al [31], and Zhang et al [32]. Yeboah et al [27], Fan et al [33], and Monterroso et al [34] discovered that the composite catalyst combined with these three kinds of catalysts has a higher catalytic efficiency. Thus, the sludge contains a large amount of catalyst for coal gasification.…”

Section: Comparison Between Actual and Fitted Dtg Curves For Coal-slumentioning

confidence: 93%

Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis

2017

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Sewage sludge in China has the characteristics of low organic content and low heating value compared with other developed countries. Self-sustaining combustion of Chinese sludge cannot be achieved when the moisture content is high. Co-combusting a small amount of sludge in the existing coal-fired boilers is a usual sludge disposal method in China. Thermogravimetric (TG) and differential scanning calorimetry (DSC) analysis of a bituminous coal, three different sewage sludges, and their blends have been carried out. Fitted curves by linear calculation and actual curves of blends were compared to study the interaction between sludge and coal in their co-combustion process. The results indicate that the interaction between the two fuels takes place during the devolatilization and combustion period. Sludge acts as a catalyst for coal during the co-combustion process because of the large amount of inorganic salts contained in the sludge. Co-combustion of coal and sludge is more efficient than single burning of the two fuels.

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Section: Comparison Between Actual and Fitted Dtg Curves For Coal-slumentioning

confidence: 93%

Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis

2017

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“…Control of CO 2 is a major concern for the future use of coal. As the Environmental Protection Agency (EPA) enacts increasingly stringent CO 2 emission regulations, traditional methods of coal combustion are no longer viable as these emit CO 2 above expected regulatory levels [3]. The coal-based integrated gasification combined cycle (IGCC) offers the advantages of higher efficiency in separating CO 2 and other pollutants compared to conventional coal-fired power plants.…”

Section: Introductionmentioning

confidence: 99%

CO2 gasification of Powder River Basin coal catalyzed by a cost-effective and environmentally friendly iron catalyst

Zhang

Wang

et al. 2015

Applied Energy

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CO 2 gasification of a sub-bituminous Wyodak coal from the Powder River Basin (PRB) was conducted in a fixed-bed laboratory gasifier at atmospheric pressure with FeCO 3 as a catalyst precursor. The effect of iron on the coal pyrolysis was evaluated by thermo-gravimetric analysis (TGA). Scanning electron microscopy (SEM) was employed to characterize the iron performance in the char gasification. The iron species and oxidation states during the coal gasification, characterized by X-ray diffraction (XRD) and Mössbauer spectroscopy, indicate a complex interaction between the reaction atmosphere and temperature, but generally proceed through reduction to FeO

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“…Thus people are highly interested in using Wyoming coal as a potential feedstock for producing liquid fuels. CTL can be realized through both direct and indirect processes, and coal gasification is the first and most important step in the all the indirect CLT processes [1][2][3][4]. CO 2 can be produced from several processes in the indirect CTL plant, such as coal combustion and water gas shift (WGS), in which CO 2 streams are at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Catalytic CO2 gasification of a Powder River Basin coal

Zhang

Wang

et al. 2015

Fuel Processing Technology

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CO 2 gasification of Wyodak low-sulfur sub-bituminous coal from the Powder River Basin (PRB) of Wyoming was conducted in a fixed-bed laboratory gasifier at atmospheric pressure with Na 2 CO 3 , an inexpensive catalyst widely available in Wyoming. The sodium effect on the coal pyrolysis and the sodium forms existing during the char gasification were investigated using thermo-gravimetric analyses (TGA) and X-ray diffraction (XRD) analyses, respectively. Sodium was found to decrease the tar production and promote the char condensation during the pyrolysis. The interaction between added sodium and the minerals in Wyodak coal were observed during the char gasification. Grain, integrated, and random pore models were employed to fit the kinetic data obtained under both non-catalytic and catalytic

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Characterization of the mechanism of gasification of a powder river basin coal with a composite catalyst for producing desired syngases and liquids

Cited by 24 publications

References 37 publications

Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis

Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis

CO2 gasification of Powder River Basin coal catalyzed by a cost-effective and environmentally friendly iron catalyst

Catalytic CO2 gasification of a Powder River Basin coal

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