The reason for this enhanced gasification is the fact that CaO, the main form of calcium mineral during coal catalytic gasification, ... Competition between H 2 O and CO 2 during the gasification of Powder River Basin coal. Fuel, Volume 187, 2017, pp. 94102. Ying Wang, David A. Bell.
Variation of Char Reactivity during Catalytic Gasification with Steam: Comparison among Catalytic Gasification by IonExchangeable Na, Ca, and Na/Ca Mixture. ... Characterization of Powder River Basin coal pyrolysis with costeffective and environmentallyfriendly composite Na Fe catalysts in a thermogravimetric analyzer and a fixedbed reactor.
The objective of this work was to study the catalytic gasification of a subbituminous coal from the Powder River Basin (PRB) using a CO2 and H 2O mixture as the gasifying agent. Sodium and iron, in the form of inexpensive compounds, were chosen to catalyze the coal gasification.
In this study, DFT is used to search for possible CO2 gasification paths at the two char edges (armchair edge and zigzag edge) catalyzed by Fe. The optimal reaction path is determined by path ...
A study on the effect of the CO2/steam mixtures and the addition of natural minerals on the reactivity of Adaro coal gasification. International ... Gasification of biomass with CO2 and H2O mixtures in a catalytic fluidised bed. ... Competition between H 2 O and CO 2 during the gasification of Powder River Basin coal. Fuel 2017, 187, 94102 ...
CO2 gasification of Powder River Basin coal catalyzed by a costeffective and environmentally friendly iron catalyst. Full Record; Other Related Research; Authors: Zhang, Fan; Xu, Deping; Wang, Yonggang; Argyle, Morris D.; Fan, Maohong Publication Date: Fri May 01 00:00:00 EDT 2015 Sponsoring Org.: USDOE
CO 2 gasification of Wyodak lowsulfur subbituminous coal from the Powder River Basin (PRB) of Wyoming was conducted in a fixedbed 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 thermogravimetric ...
In this work, the influence of KCl concentration on the gasification characteristics of lignite coal char between °C is studied through the experiments of temperature programmed gasification and isothermal gasification using a thermogravimetric analyzer. The gasification kinetics, characteristic parameters, and the reaction mechanism of catalytic gasification is explored using the ...
Catalytic gasification of a Wyodak lowsulfur subbituminous coal from the Powder River Basin of Wyoming was investigated using an inexpensive catalyst, Na2CO3, widely available in Wyoming.
A study was carried out in both inert and CO 2 atmosphere to investigate the interaction mechanism of K 2 CO 3 with graphite and coal char during the catalytic gasification of coal char. The formation of K 2 CO 3 catalytic precursors was identified by using series of different techniques. The results obtained in an inert atmosphere show that the interaction between K 2 CO 3 and carbon readily ...
CO2 capture and utilization caused more and more public attention because of its environmental impact. The objective of this work was to study the catalytic gasification of a subbituminous coal from the Powder River Basin (PRB) using a CO2 and H2O mixture as the gasifying agent. Sodium and iron, in the form of inexpensive compounds, were chosen to catalyze the ...
The total yield of the liquid tars increased from wt% for noncatalytic stepwise degradation to wt% for CaO catalyzed stepwise degradation, with an increase of wt%. ... Characterization of the mechanism of gasification of a powder river basin coal with a composite catalyst for producing desired syngases and liquids. Appl Catal, A ...
DOI: / Corpus ID: ; Catalytic CO 2 gasification of a Powder River Basin coal article{Zhang2015CatalyticC2, title={Catalytic CO 2 gasification of a Powder River Basin coal}, author={Fan Zhang and Deping Xu and Yonggang Wang and Yan Wang and Gao Ying and T. Popa and Maohong Fan}, journal={Fuel Processing Technology}, year={2015}, volume={130}, pages={107116} }
Introduction. Nowadays, coal gasification technology is being widely developed to keep up with the soaring energy demand [1], [2]. Partial replacement of H 2 O by CO 2 to realize the gasification of coal with H 2 O/CO 2 mixtures (cogasification) is an important approach that can allow for green, lowcarbon, and sustainable development [3]. Moreover, low temperature gasification should also be ...
Competition between H 2 O and CO 2 during the gasification of Powder River Basin coal. Fuel (2017) R. Zhang et al. The effects of specific surface area and ash on char gasification mechanisms in the mixture of H 2 O ... Hydrogen production from high temperature steam catalytic gasification of biochar. Journal of the Energy Institute, Volume 89 ...
DOE PAGES ® Journal Article: Catalytic gasification of a Powder River Basin coal with CO2 and H2O mixtures. Catalytic gasification of a Powder River Basin coal with CO2 and H2O mixtures. Full Record; Other Related Research; Authors: Zhang, Fan; Fan, Maohong; Huang, Xin; Argyle, Morris D.; Zhang, Bo; Towler, Brian; Zhang, Yulong
Catalytic gasification of a Wyodak lowsulfur subbituminous coal from the Powder River Basin of Wyoming was investigated using an inexpensive catalyst, Na2CO3, widely available in Wyoming.
Introduction. Catalytic coal gasification has been studied worldwide for nearly 20 years due to its advantages, such accelerating process rate, improving carbon conversion degree, reducing process temperature, and thus decreasing energy consumption and limiting mechanical problems due to moderate conditions in a gasifier, as well as achieving a desired gas composition (Huang et al., 2015).
The objective of this work was to study the catalytic gasification of a subbituminous coal from the Powder River Basin (PRB) using a CO 2 and H 2 O mixture as the gasifying agent. Sodium and iron, in the form of inexpensive compounds, were chosen to catalyze the coal gasification.
The suitable temperature for catalytic coal gasification to produce methane was K. ... CO 2 gasification of powder river basin coal catalyzed by a costeffective and environmentally friendly iron catalyst. Appl. Energy, 145 (2015), pp. 295305. View PDF View article View in Scopus Google Scholar
CO capture and utilization caused more and more public attention because of its environmental impact. The objective of this work was to study the catalytic gasification of a subbituminous coal from the Powder River Basin (PRB) using a CO and HO mixture as the gasifying agent. Sodium and iron, in the form of inexpensive compounds, were chosen to catalyze the coal gasification. The experiments ...
Electrochemical catalytic coal gasification experiments with Fuxin (FX) coal under a CO2 atmosphere were conducted to evaluate the effects of power and temperature on coal gasification and char structure evolution during electrochemical catalytic gasification (ECG). When the power was 400 W, with temperature increasing from 800 to 1000 °C, the CO content in the gas products increased by % ...
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The catalytic mechanism is generally described as the added metal element contacting with gasifying agent (H 2 O and/or CO 2 ) produces hydrogen and/or carbon monoxide and a layer of...
1. Introduction. Gasification technology offers one of the cleanest ways for different carbonaceous feedstocks. Since the 21st century, the C1 chemical industry based on syngas has developed rapidly under the promotion of largescale coal gasification technology, especially in a country rich in coal resources. 1 With the development of gasification technology, the feedstock of gasifiers ...
CO2 gasification of a subbituminous Wyodak coal from the Powder River Basin (PRB) was conducted in a fixedbed laboratory gasifier at atmospheric pressure with FeCO3 as a catalyst precursor.
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