Effect of re-carbonation on CO 2 capture by carbide slag and energy consumption in the calciner

He, Zirui; Li, Yingjie; Zhang, Wan; Ma, Xiaotong; Duan, Lunbo; Song, Haiping

doi:10.1016/j.enconman.2017.07.006

Cited by 29 publications

(10 citation statements)

References 51 publications

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“…It is well-established that the presence of steam enhances the extent of the carbonation reaction within a given time, for natural, synthetic, and chemically modified sorbents. ,,− ,,− ,− Similar to He, steam was found to accelerate the calcination reaction and to lower the thermodynamic driving force for its initiation. ,− Unlike He, steam does affect the physical (i.e., structural and morphological) properties of the CaO formed. ,, Champagne et al . , observed that the CO 2 uptake was improved when the subsequent carbonation was performed under dry conditions.…”

Section: Fundamentals Of the Carbonation And Calcination Reactionsmentioning

confidence: 99%

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

et al. 2021

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Carbon dioxide capture and mitigation form a key part of the technological response to combat climate change and reduce CO2 emissions. Solid materials capable of reversibly absorbing CO2 have been the focus of intense research for the past two decades, with promising stability and low energy costs to implement and operate compared to the more widely used liquid amines. In this review, we explore the fundamental aspects underpinning solid CO2 sorbents based on alkali and alkaline earth metal oxides operating at medium to high temperature: how their structure, chemical composition, and morphology impact their performance and long-term use. Various optimization strategies are outlined to improve upon the most promising materials, and we combine recent advances across disparate scientific disciplines, including materials discovery, synthesis, and in situ characterization, to present a coherent understanding of the mechanisms of CO2 absorption both at surfaces and within solid materials.

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Section: Fundamentals Of the Carbonation And Calcination Reactionsmentioning

confidence: 99%

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

et al. 2021

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“…Other meanso fm aintaining the capturep erformance of CCR are provided by recarbonation. [143] The sample is transferred from ac alciner to ac arbonator and then to ar ecarbonator ( Figure 29). The effect of recarbonation is based on the recruitmento fp reviouslyu nreacted CaO.…”

Section: Calcium Carbide For the Capture Of Waste Comentioning

confidence: 99%

“…The CCR looping system with recarbonation. Reproduced from Ref [143]. with permission from Elsevier.…”

mentioning

confidence: 99%

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Calcium‐Based Sustainable Chemical Technologies for Total Carbon Recycling

2019

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Calcium carbide, a stable solid compound composed of two atoms of carbon and one of calcium, has proven its effectiveness in chemical synthesis, due to the safety and convenience of handling the C≡C acetylenic units. The areas of CaC2 application are very diverse, and the development of calcium‐mediated approaches resolves several important challenges. This Review aims to discuss the laboratory chemistry of calcium carbide, and to go beyond its frontiers to organic synthesis, life sciences, materials and construction, carbon dioxide capturing, alloy manufacturing, and agriculture. The recyclability of calcium carbide and the availability of large‐scale industrial production facilities, as well as the future possibility of fossil‐resource‐independent manufacturing, position this compound as a key chemical platform for sustainable development. Easy regeneration and reuse of the carbide highlight calcium‐based sustainable chemical technologies as promising instruments for total carbon recycling.

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“…However, the above literature survey shows that at present, most of them focused on the analysis of system energy or carbon emissions, lacking the research on overall process design improvement and the overall evaluation and analysis of the system to reduce carbon consumption and emissions and to recycle solid waste carbide slag. 31,32 Additionally, most of the evaluation and analysis of the calcium carbide system are carried out from a single aspect such as an energy or environmental impact. If the evaluation and analysis of the system achieve the best coordination in terms of multiobjective and multiperformance as far as possible, they will have more prominent guiding significance for the actual industrial process.…”

Section: Introduction 1efficient and Clean Production Of Calciummentioning

confidence: 99%

A Novel Coal-Based Calcium Carbide-Acetylene System Process Based on Multistage Carbon Capture and Waste Slag Recycling Design: A Multiobjective Optimization Evaluation Perspective

Wang

Zhu

Dai

et al. 2022

Ind. Eng. Chem. Res.

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Large amounts of raw material consumption, high energy consumption, and severe pollution have always been the key factors restricting the stable development of the coal-to-calcium carbide industry. Therefore, this paper presents a novel combined carbon capture and utilization and solid waste recycling system of the coal-based calcium carbide-acetylene production (CCAP) process to improve these deficiencies. This improved CCAP system consists of a gasifier, carbide furnace, acetylene furnace, the newly designed coupling module of a recarbonization furnace and calciner, and mineralization units. The thermodynamic model of the CCAP system is developed to calculate the effective atomic yield, carbon consumption, CO 2 emission, etc. to evaluate the performance. The improved system performed better with the effective atomic yield (98.50%), CO 2 capture rate (69.57%), CO 2 emission (1.1064 t CO 2 •(t −1 C 2 H 2 )), CO 2 e emission (7.2092 t CO 2 e•(t −1 C 2 H 2 )), and carbon consumption (3.2101 t Coal•(t −1 C 2 H 2 )) than the referenced system with 64.57%, 0, 2.25 t CO 2 •(t −1 C 2 H 2 ), 20.4122 t CO 2 e• (t −1 C 2 H 2 ), and 5.43 t Coal•(t −1 C 2 H 2 ), respectively. The exergy analysis shows that the improved system performed better for efficient energy utilization with an exergy efficiency of 48.97% for a large-scale chemical process. Besides, the trade-off between the maximum effective atomic yield, minimum carbon consumption, CO 2 equivalent emission, and total annual cost (TAC) is conducted through multiobjective optimization. By three-objective optimization, the improved system could achieve a lower TAC of 8.51 × 10 6 $/year, CO 2 e emission of 4.1573 t CO 2 e•(t −1 C 2 H 2 ), and carbon consumption of 1.9874 t Coal•(t −1 C 2 H 2 ) simultaneously, which decreased by 38.78%, 79.63%, and 63.40%, respectively, than that of the referenced system. The all-around performance of the improved CCAP system after multiobjective optimization has been dramatically improved, making it more competitive in energy conservation, emission reduction, and resource recovery.

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Effect of re-carbonation on CO 2 capture by carbide slag and energy consumption in the calciner

Cited by 29 publications

References 51 publications

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

Calcium‐Based Sustainable Chemical Technologies for Total Carbon Recycling

A Novel Coal-Based Calcium Carbide-Acetylene System Process Based on Multistage Carbon Capture and Waste Slag Recycling Design: A Multiobjective Optimization Evaluation Perspective

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Effect of re-carbonation on CO 2 capture by carbide slag and energy consumption in the calciner

Cited by 29 publications

References 51 publications

CO2 Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

CO2 Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

Calcium‐Based Sustainable Chemical Technologies for Total Carbon Recycling

A Novel Coal-Based Calcium Carbide-Acetylene System Process Based on Multistage Carbon Capture and Waste Slag Recycling Design: A Multiobjective Optimization Evaluation Perspective

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Product

Resources

About

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances

CO₂ Capture at Medium to High Temperature Using Solid Oxide-Based Sorbents: Fundamental Aspects, Mechanistic Insights, and Recent Advances