Reductive calcination of calcium carbonate in hydrogen and methane: A thermodynamic analysis on different reaction routes and evaluation of carbon dioxide mitigation potential

Jiang, Peng; Li, Lin; Zhao, Guanhan; Zhang, Hao; Ji, Tuo; Mu, Liwen; Lü, Xiaohua; Zhu, Jiahua

doi:10.1016/j.ces.2023.118823

Cited by 13 publications

(4 citation statements)

References 55 publications

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“…However, a change of about 10 °C does not have much effect on the mineralization, so we chose 25 °C as the optimal reaction temperature for subsequent experiments. 27 Additionally, the solid−liquid ratio has a direct impact on Ca 2+ extraction and offers an environment for future mineralization. Among the five solid conditions, the best CO 2 capture rate of 23.8% was obtained at a solid−liquid ratio of 30 g/L.…”

Section: Resultsmentioning

confidence: 99%

“…Since the mineralization reaction itself is exothermic, the lower temperature is not conducive to the chemical reaction, but too high a temperature will lead to a decrease in the solubility of CO 2 in the slurry. However, a change of about 10 °C does not have much effect on the mineralization, so we chose 25 °C as the optimal reaction temperature for subsequent experiments . Additionally, the solid–liquid ratio has a direct impact on Ca 2+ extraction and offers an environment for future mineralization.…”

Section: Resultsmentioning

confidence: 99%

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Accelerated Direct Mineralization of CO₂ by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions

Lu,

Wang,

Zhang

et al. 2024

Energy Fuels

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With the proposal of double carbon targets in several countries, Carbon Capture and Storage (CCS) technology for large-scale CO 2 sequestration is receiving increasing attention. Alkaline solid waste carbide slag is a cheap and adequate raw material for CCS. Based on the control steps of the mineralization reaction for CO 2 fixation by carbide slag, a stepwise enhanced strategy for wet mineralization sealing under normal reaction conditions was devised to efficiently improve CO 2 mineralization and byproduct CaCO 3 content. Specifically, we introduced calcination to change the surface morphology of the carbide slag and then utilized agitation to improve the solid−liquid consistency and enhance the dissolution of the carbide slag and the leaching of Ca 2+ . Ultrasound and magnetic stirring cause the carbide slurry to vibrate, shock, and disperse violently so that the calciumcontaining phase releases more Ca 2+ into the reaction system and promotes CO 2 mineralization. However, it is possible that ultrasonic waves to some extent destroyed the CaCO 3 released from the carbide slag to form an encapsulating layer on the surface, allowing more Ca 2+ reactions and better performance of CO 2 capture and CO 2 mineralization efficiency under ultrasonic conditions. The addition of NaOH solution affected the generation of carbonate and the mineralization reaction, which resulted in a CO 2 mineralization efficiency of 86.7% (637 kg CO 2 /tonne of slag), a calcium mineralization product with a purity of 94.1%, and a particle size of about 100 μm under the conditions of 300 W, 25 °C, and 1 M concentration. This technology progressively enhances the process of fixing CO 2 by wetting the carbide slag with the byproduct of CaCO 3 .

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Accelerated Direct Mineralization of CO₂ by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions

Lu,

Wang,

Zhang

et al. 2024

Energy Fuels

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“…This study focused on conducting an LCA to establish indicators for FED and GWP to identify a low-carbon pathway for methanol production. The FED and GWP indicators were calculated using a hybrid LCA approach, as previously developed in our research. ,,, The foreground data for the LCA was obtained from the results generated by Aspen Plus, while the background data were sourced from the Chinese Life Cycle Database (CLCD) and relevant references. , The functional unit was defined as 1.0 kg of produced methanol. The LCA was performed using IPCC 2007 GWP 100a on the basis of product carbon element conservation analysis .…”

Section: Methodsmentioning

confidence: 99%

“…The FED and GWP indicators were calculated using a hybrid LCA approach, as previously developed in our research. 27,32,33,47 The foreground data for the LCA was obtained from the results generated by Aspen Plus, while the background data were sourced from the Chinese Life Cycle Database (CLCD) and relevant references. 27,48 The functional unit was defined as 1.0 kg of produced methanol.…”

Section: Process Assessmentmentioning

confidence: 99%

Seeking the Low-Carbon Route of Methanol Production with Sustainable Resources by Tracking Energy and Environment Indicators

Jiang,

Li,

Zhao

et al. 2024

Ind. Eng. Chem. Res.

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Methanol production is a CO 2 -intensive process as its raw materials are mainly from fossil resources. Despite numerous proposed measures for CO 2 mitigation, selecting low-carbon options for methanol production still poses significant challenges. Here, we present an assessment approach based on their fossil energy demand (FED) and global warming potential (GWP). Specifically, four methanol production routes were first established based on the calcium looping sorption enhancement process, namely, coal to methanol, natural gas to methanol, biomass to methanol, and biomass to methanol with biochar (BTMC). Results show that appealing performances for FED and GWP of −17.085 MJ/kg-methanol and −2.457 kg-CO 2 -eq/kg-methanol were achieved in the BTMC process. Additionally, by tracking FED and GWP indicators, the lowest carbon footprint route (−5.793 kg-CO 2 -eq/kg-methanol) can be quickly identified when considering CO 2 capture, renewable energy, and feedstock substitution for existing processes. Overall, this work provides a new pathway for sustainable methanol production by evaluating low-carbon options from both energy and environmental perspective.

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Mapping out the regional low-carbon and economic biomass supply chain by aligning geographic information systems and life cycle assessment models

Zhao,

Jiang,

Zhang

et al. 2024

Applied Energy

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Reductive calcination of calcium carbonate in hydrogen and methane: A thermodynamic analysis on different reaction routes and evaluation of carbon dioxide mitigation potential

Cited by 13 publications

References 55 publications

Accelerated Direct Mineralization of CO₂ by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions

Accelerated Direct Mineralization of CO₂ by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions

Seeking the Low-Carbon Route of Methanol Production with Sustainable Resources by Tracking Energy and Environment Indicators

Mapping out the regional low-carbon and economic biomass supply chain by aligning geographic information systems and life cycle assessment models

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Reductive calcination of calcium carbonate in hydrogen and methane: A thermodynamic analysis on different reaction routes and evaluation of carbon dioxide mitigation potential

Cited by 13 publications

References 55 publications

Accelerated Direct Mineralization of CO2 by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions

Accelerated Direct Mineralization of CO2 by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions

Seeking the Low-Carbon Route of Methanol Production with Sustainable Resources by Tracking Energy and Environment Indicators

Mapping out the regional low-carbon and economic biomass supply chain by aligning geographic information systems and life cycle assessment models

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Product

Resources

About

Accelerated Direct Mineralization of CO₂ by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions

Accelerated Direct Mineralization of CO₂ by Carbide Slag under Ambient Temperature and Pressure Reaction Conditions