Synthesis of Carbon Monoxide from Hydrogen and Magnesite/Dolomite

Baldauf-Sommerbauer, Georg; Lux, Susanne; Aniser, Wolfgang; Siebenhofer, Matthäus

doi:10.1002/cite.201600078

Cited by 13 publications

(8 citation statements)

References 38 publications

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“…For tubular reactor experiments, the setup delineated in Figure was used. It was also used in previous studies described in refs.,, , in which comparable sketches can be found. A detailed written description of the setup is given in ref .…”

Section: Methodssupporting

confidence: 59%

Iron Carbonate Beneficiation Through Reductive Calcination – Parameter Optimization to Maximize Methane Formation

et al. 2019

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Direct iron carbonate reduction through reductive calcination in a hydrogen atmosphere is a high‐potential candidate for environmentally benign pig iron production. In addition to the direct formation of elemental iron in one reaction step, carbon dioxide is only partially released from the carbonate. Instead, carbon monoxide, methane, and higher hydrocarbons form as gaseous reaction products. The experimental study described here is based on Mg‐Mn substituted iron carbonate ore. First, the chemical thermodynamics of the reductive calcination of iron, magnesium, and manganese carbonate are discussed. The influence of temperature and pressure on equilibrium conversion is reviewed together with the accessible products. Results for the reductive calcination of mineral iron carbonate in a tubular reactor setup are presented. The methane yield was optimized via statistically planned design of experiments. The gauge pressure and temperature showed a statistically significant effect on the total iron carbonate conversion, as well as on carbon monoxide, and methane yield.

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Section: Methodssupporting

confidence: 59%

Iron Carbonate Beneficiation Through Reductive Calcination – Parameter Optimization to Maximize Methane Formation

et al. 2019

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“…Baldauf-Sommerbauer et al studied the hydrogenation reaction of FeCO 3 , MgCO 3 , and CaMg(CO 3 ) 2 at high temperatures (500–1000 K). It was reported that MgCO 3 conversion rate was 20%, CH 4 yield was 38.6%, and the products were CH 4 , CO 2 , and CO . The reported literature suggests that the hydrogenation reaction of inorganic metal carbonate in the presence of catalysts (Fe, Ni, Co, Ru, Rh, Pd, Ir) was usually carried out at high temperatures (523–1243 K). − Compared with the previous works, the merit of this study is that the selective hydrogenation of the produced carbonate to CH 4 was efficiently induced by the alkaline earth metals at room temperature.…”

Section: Results and Discussionmentioning

confidence: 85%

“…After three cycles, the CH 4 yield can still reach about 50%, and the CH 4 selectivity is still 100% (Figure 3), indicating that the alkaline earth metal-induced methanation of the CaO-captured CO 2 has good cyclic stability. CO 2 , and CO. 36 The reported literature suggests that the hydrogenation reaction of inorganic metal carbonate in the presence of catalysts (Fe, Ni, Co, Ru, Rh, Pd, Ir) was usually carried out at high temperatures (523−1243 K). 35−39 Compared with the previous works, the merit of this study is that the selective hydrogenation of the produced carbonate to CH 4 was efficiently induced by the alkaline earth metals at room temperature.…”

Section: Alkaline Earth Metal-induced Methanationmentioning

confidence: 98%

Alkaline Earth Metal-Induced Hydrogenation of the CaO-Captured CO₂ to Methane at Room Temperature

Mao

Kan

Xiao

et al. 2022

Ind. Eng. Chem. Res.

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CaO is promising to be widely used to capture CO2. The produced CaCO3 can be considered as solid CO2, which is also a plentiful, convenient, and useful carbon resource. Here, for the first time, we report that an alkaline earth metal can selectively induce the hydrogenation of the CaO-captured CO2 (namely, the produced CaCO3) to CH4 under room-temperature ball-milling conditions. The effects of ball-milling conditions and different catalysts on the methanation performance were studied. The results show that the CH4 yield can reach 56.1%, and the CH4 selectivity is 100%. When adding metal Ni, the CH4 yield can be further increased. The experimental and density functional theory calculation results indicate that the in situ formed metal hydride plays a key role in the process of methanation. This work provides a novel and energy-saving method to convert the metal oxide-captured CO2/carbonate to CH4 at room temperature.

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“…This type of hydrogenation process is also applicable to other metal carbonates. Applicability to magnesite [41] and magnesite/dolomite [42] has already been demonstrated.…”

Section: Reductive Calcination For Alternative Mineral Metal Carbonat...mentioning

confidence: 99%

Application of the TRIZ Contradictory Matrix to Foster Innovation for Sustainable Chemical Engineering

Lux

2022

Chemie Ingenieur Technik

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This work demonstrates how to apply the Theory of Inventive Problem Solving (Russian acronym TRIZ) on two industrial-scale case studies. The first case study addresses processing of mineral metal carbonates, which is characterized by high CO 2 emissions and high energy demand. As solver strategy a novel reductive pathway is suggested. The second case study refers to biobased industrial processes, which discharge aqueous effluents with unexploited carboxylic acid loads. Reactive separations are proposed to isolate the carboxylic acids. In both solver strategies, chemical reactions adopt a central role.

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Synthesis of Carbon Monoxide from Hydrogen and Magnesite/Dolomite

Cited by 13 publications

References 38 publications

Iron Carbonate Beneficiation Through Reductive Calcination – Parameter Optimization to Maximize Methane Formation

Iron Carbonate Beneficiation Through Reductive Calcination – Parameter Optimization to Maximize Methane Formation

Alkaline Earth Metal-Induced Hydrogenation of the CaO-Captured CO₂ to Methane at Room Temperature

Application of the TRIZ Contradictory Matrix to Foster Innovation for Sustainable Chemical Engineering

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Synthesis of Carbon Monoxide from Hydrogen and Magnesite/Dolomite

Cited by 13 publications

References 38 publications

Iron Carbonate Beneficiation Through Reductive Calcination – Parameter Optimization to Maximize Methane Formation

Iron Carbonate Beneficiation Through Reductive Calcination – Parameter Optimization to Maximize Methane Formation

Alkaline Earth Metal-Induced Hydrogenation of the CaO-Captured CO2 to Methane at Room Temperature

Application of the TRIZ Contradictory Matrix to Foster Innovation for Sustainable Chemical Engineering

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Alkaline Earth Metal-Induced Hydrogenation of the CaO-Captured CO₂ to Methane at Room Temperature