The catalytic gasification of coal using calcium as the catalyst has several advantages over potassium, such as lower costs and corrosiveness, abundant reserves on earth, and facile accessibility. ... 2015 Reaction kinetics of Powder River Basin coal gasification in carbon dioxide using a modified drop tube reactor. Fuel 140, 616625.
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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 ...
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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.
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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 ...
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Highquality oil and gas from pyrolysis of Powder River Basin coal catalyzed by an environmentallyfriendly, inexpensive composite ironsodium catalysts Article Dec 2017
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DOI: / Corpus ID: ; Characterization of the mechanism of gasification of a powder river basin coal with a composite catalyst for producing desired syngases and liquids
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The coalbased integrated gasification combined cycle (IGCC) offers the advantages of higher efficiency in separating CO 2 and other pollutants compared to conventional coalfired power plants. The CO 2 collected in the IGCC can be injected into oceans or deep underground geological formations [4].
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Rapagnà et al. studied catalytic steam gasification of almond shells in a bubbling fluidizedbed gasifier by using 10 wt % of Fe/olivine catalyst synthesized via the impregnation method. (190) The experiments were performed at temperatures between 800 and 830 °C, and blank (olivine) was used for comparison of the effect of a catalyst on gas ...
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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.
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The catalytic effect of AAEMs on CSC gasification was weakened due to waterleaching treatment. ... Reaction kinetics of Powder River Basin coal gasification were measured in a modified drop tube ...
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Gasification of biomass with CO 2 and H 2 O mixtures in a catalytic fluidised bed. Fuel 2017, 210, 605610. DOI: / Ying Wang, David A. Bell. Competition between H 2 O and CO 2 during the gasification of Powder River Basin coal. Fuel 2017, 187, 94102. DOI: /
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Competition between H2O and CO2 during the gasification of Powder River Basin coal article{Wang2017CompetitionBH, title={Competition between H2O and CO2 during the gasification of Powder River Basin coal}, author={Ying Wang and David A. Bell}, journal={Fuel}, year={2017}, volume={187}, pages={94102} }
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In this study, the influence of Na, Fe and their composite catalysts on the structure and gasification reactivity of chars derived from pyrolysis of Powder River Basin (PRB) coal was investigated.
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As a result, fuels with larger surface area and more catalytic components in ash were preferred for increasing the intrinsic reactivity of CO2 gasification particularly for lowrank coals and biomass, respectively. ... Reaction kinetics of Powder River Basin coal gasification in carbon dioxide using a modified drop tube reactor, Fuel, 140 (2015 ...
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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).
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As the largest coal mining region and the main coal supply in the United States, Powder River Basin (PRB) coal has a tight connection with this country's power industry and requires special attention in coal gasification studies. Very little investigation of PRB gasification rates in the presence of both CO 2 and steam have been done. As a ...
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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 ...
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DOI: / Corpus ID: ; CO2 gasification of Powder River Basin coal catalyzed by a costeffective and environmentally friendly iron catalyst article{Zhang2015CO2GO, title={CO2 gasification of Powder River Basin coal catalyzed by a costeffective and environmentally friendly iron catalyst}, author={Fan Zhang and Deping Xu and Yonggang Wang and Morris D. Argyle ...
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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...
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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.
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A kinetic characterization of the CO 2 gasification of chars from Chinese lowrank lignite coal is performed by isothermal thermogravimetry. The isothermal condition is 1,073 K, and the CO 2 concentration range is 1090%. Alkali and alkali earth catalysts were used to promote the gasification reactivity.
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A material supplier from Belgium would like to produce limestone powder for his custome...
India is rich in various mineral resources and it is an important mineral processing market
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