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Solid Looping Process for Low Carbon Energy
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Solid Looping Process for Low Carbon Energy

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "B: Energy and Environment".

Deadline for manuscript submissions: closed (25 July 2023) | Viewed by 6003

Special Issue Editors

Prof. Dr. Yingjie Li

E-Mail Website
Guest Editor
School of Energy and Power Engineering, Shandong University, Jinan 250061, China
Interests: CO2 capture; calcium looping; H2 production from biomass; thermochemical energy storage using CaCO3/CaO and Ca(OH)2/CaO cycles
Prof. Dr. Chuanwen Zhao

E-Mail Website
Guest Editor
School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210023, China
Interests: CO2 capture using solid sorbents; H2 production; thermochemical energy storage
Dr. Wenqiang Liu

E-Mail Website
Guest Editor
School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: CaO/Li4SiO4-based sorbents for CO2 capture; ReSER for hydrogen production, thermochemical energy storage
Dr. Cong Luo

E-Mail Website
Guest Editor
State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: solid sorbents for CO2 capture; chemical looping for hydrogen production; oxyfuel combustion
Dr. Xiaotong Ma

E-Mail Website
Guest Editor
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Interests: pollutant treatment from fuel combustion; calcium looping for thermochemical energy storage; industrial solid waste utilization; high-temperature synthesizing technology of nanomaterials; microscale reaction simulation

Special Issue Information

Dear Colleagues,

The solid looping process has been extensively researched in areas concerned with low-carbon energy, such as CO2 capture, H2 production, thermochemical energy storage and environmental protection at different temperatures. A comprehensive understanding of gas–solid reaction kinetics, cyclic stability and sintering resistance, agglomeration resistance and fragmentation resistance of solid materials is key to various solid looping processes’ industrial application. In addition, the design of reactors for solid looping processes is crucial to realize efficient CO2 capture, H2 production, energy storage, etc. Dual reactors (such as fixed-bed reactor, fluidized bed reactor, etc.) are usually implemented to achieve the cyclic reaction/regeneration of solid materials. This Special Issue intends to elaborate upon the latest research and stimulate the further development of solid looping technologies for the realization of low-carbon energy, with an emphasis on advanced solid materials and reactors. For this purpose, I am inviting the submission of high-quality research and review papers for this Special Issue. Topics of interest include, but are not limited to:

  • Chemical looping/calcium looping for CO2 capture and H2 production;
  • Alkali carbonates/Li-based materials/solid amines looping for CO2 capture;
  • CaCO3/CaO, Ca(OH)2/CaO, Mg(OH)2/MgO, metallic oxide redox (e.g. Cu2O/CuO, Co3O4/CoO) cycles for energy storage;
  • Reaction–regeneration cycles for environmental protection;
  • Design of reactors for solid looping process.

Prof. Dr. Yingjie Li
Prof. Dr. Chuanwen Zhao
Dr. Wenqiang Liu
Dr. Cong Luo
Dr. Xiaotong Ma
Guest Editors

Manuscript Submission Information

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Keywords

  • solid looping
  • chemical looping
  • calcium looping
  • thermochemical energy storage
  • reaction/regeneration cycles
  • metallic oxide redox
  • CO2 capture
  • H2 production
  • environmental protection
  • design of reactors
  • cyclic stability
  • low-carbon energy

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Published Papers (3 papers)

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Research

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13 pages, 3349 KiB  
Article
Experimental Study on the Preparation of Hydrogen-Rich Gas by Gasifying of Traditional Chinese Medicine Residue in a DFB Based on Calcium Looping
by Xiaoquan Zhou, Liguo Yang, Xiaoxu Fan and Xuanyou Li
Energies 2023, 16(11), 4434; https://doi.org/10.3390/en16114434 - 31 May 2023
Cited by 1 | Viewed by 1626
Abstract
Using traditional Chinese medicine residue biomass as the raw material and industrial limestone as a carbon absorbent, this paper investigates the production of hydrogen-rich synthesis gas in a pilot-scale calcium looping dual fluidized bed (DFB) system. The study focuses on analyzing the distribution [...] Read more.
Using traditional Chinese medicine residue biomass as the raw material and industrial limestone as a carbon absorbent, this paper investigates the production of hydrogen-rich synthesis gas in a pilot-scale calcium looping dual fluidized bed (DFB) system. The study focuses on analyzing the distribution characteristics of temperature and pressure, as well as the operation and control methods of the DFB system. The effects of reaction temperature, material layer height (residence time), water vapor/biomass ratio (S/B), and calcium/carbon molar ratio (Ca/C) on gasification products are examined. The experimental results demonstrate that as the temperature (600–700 °C), S/B ratio (0.5–1.5), Ca/C ratio (0–0.6), and other parameters increase, the gas composition shows a gradual increase in the volume content of H2, a gradual decrease in the volume content of CO, and an initial increase and subsequent decrease in the volume content of CH4. Within the range of operating conditions in this study, the optimal conditions for producing hydrogen-rich gas are 700 °C, an S/B ratio of 1.5, and a Ca/C ratio of 0.6. Furthermore, increasing the height of the material layer in the gasification furnace (residence time) enhances the absorption of CO2 by the calcium absorbents, thus promoting an increase in the volume content of H2 and the carbon conversion rate in the gas. Full article
(This article belongs to the Special Issue Solid Looping Process for Low Carbon Energy)
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17 pages, 46745 KiB  
Article
Study on Slagging Characteristics of Co-Combustion of Meager Coal and Spent Cathode Carbon Block
by Jigang Zhang, Zijun Liu, Xian Li, Bin Wang, Zhaocai Teng and Kuihua Han
Energies 2023, 16(2), 736; https://doi.org/10.3390/en16020736 - 8 Jan 2023
Cited by 15 | Viewed by 1564
Abstract
The harmless disposal of spent cathode carbon blocks (SCCBs) has become an urgent issue in the primary aluminum industry, and the disposal of SCCBs by co-combustion in pulverized coal boilers is expected to be the most effective treatment method. A muffle furnace at [...] Read more.
The harmless disposal of spent cathode carbon blocks (SCCBs) has become an urgent issue in the primary aluminum industry, and the disposal of SCCBs by co-combustion in pulverized coal boilers is expected to be the most effective treatment method. A muffle furnace at 815 °C was used in this study to perform a co-combustion experiment of meager coal and SCCBs. The ash fusion characteristics (AFTs), microscopic morphology, and minerals composition of co-combustion ash were characterized. The interaction mechanism of different mineral components and the change in AFTs and viscosity-temperature characteristics were investigated using FactSage software. Results show that the change in the ash deformation temperature (DT) is correlated linearly with the SCCB addition ratio, whereas other characteristic temperatures exhibit a nonlinear relationship. The contents of SiO2, Al2O3, and Na2O collectively determine the DT in the ash, and the influence degree from high to low is in the order of SiO2, Na2O, and Al2O3. The phase diagram of Na2O–Al2O3–SiO2 is used to accurately predict the changing trend of the melting point of co-combustion ash. The ratio changes between refractory and fusible minerals in the ash, as well as the degree of low-temperature eutectic reaction between sodium- and calcium-containing minerals, are the main factors affecting the melting point of ash. When the blending amount of SCCBs is 5%, mostly complete combustion is achieved, and slagging does not occur easily. The optimal blending ratio of SCCBs is obtained using the co-combustion method from the aspect of AFTs and viscosity-temperature characteristics. This work lays a theoretical foundation for industrial application. Full article
(This article belongs to the Special Issue Solid Looping Process for Low Carbon Energy)
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Review

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17 pages, 2022 KiB  
Review
Review of Selected Determinants Affecting Use of Municipal Waste for Energy Purposes
by Przemysław Rajca, Andrzej Skibiński, Anna Biniek-Poskart and Monika Zajemska
Energies 2022, 15(23), 9057; https://doi.org/10.3390/en15239057 - 30 Nov 2022
Cited by 3 | Viewed by 2107
Abstract
The aim of the article is to analyse the impact of selected conditions on the use of municipal solid waste in energy production processes. The authors in this publication indicated that the factors determining the effective use of solid municipal waste may be, [...] Read more.
The aim of the article is to analyse the impact of selected conditions on the use of municipal solid waste in energy production processes. The authors in this publication indicated that the factors determining the effective use of solid municipal waste may be, in particular, formal and legal conditions, methods used in the processes of thermal waste transformation, recovery logistics or emergency situations such as pandemics or armed conflicts. Their knowledge can be very useful in the processes of the effective use of municipal waste for the production of thermal energy, especially in the current period of the energy crisis faced by most EU countries. This paper also emphasizes the importance of RDF (refuse-derived fuel) for the thermal energy sector, which can be used both in large combustion plants and in less powerful facilities, including local heating and combined heat and power plants as an alternative to traditional fossil fuels. The article was prepared by means of the systematic literature review (SLR) method, utilising the Scopus database and secondary sources. Full article
(This article belongs to the Special Issue Solid Looping Process for Low Carbon Energy)
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