DOI: 10.1016/j.jece.2024.112356 Corpus ID: 268224525; Resource utilization of semi-dry flue gas desulfurization ash by thermal treatment on sintering machine @article{Liu2024ResourceUO, title={Resource utilization of semi-dry flue gas desulfurization ash by thermal treatment on sintering machine}, author={Lincheng Liu …
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Flue gas desulfurization gypsum (FGDG) is a coal combustion by-product that can be used in various beneficial ways. This review summarizes the recent …
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The past several years has witnessed great progress in utilization of industrial waste gypsum. Newly developed carbonation technology toward CaCO3 preparation also …
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Over the past few decades, there has been wide interest in developing strategies for the utilization of flue gas desulfurization gypsum (FGDG), a by-product of scrubbing sulfur from combustion ...
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[19] Qi C. B. 2010 Comparison between Magnesium Oxide and Limestone-Gypsum Wet Flue Gas Desulfurization Technology Silicon Valley 9 056. Google Scholar [20] Zhao X., Gao J., Wu S. H. and Qin Y. K. 2003 Development of Dry and Semi-Dry (Calcium Base) Flue Gas Desulfurization Technology Chemical Engineering 31 64-67. …
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Purpose Soil salinization is a major obstacle to the development and utilization of land resources in coastal areas. The purpose of the study is to explore the desalting effect of flue gas desulfurization gypsum (FGDG) on coastal saline-sodic soils by evaluating changes of soil chemical properties (soluble ions, exchangeable cations, …
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The effective and safe use of FGD gypsum in agricultural land is still debated in some countries even though its effectiveness in soil management has been reported in many studies. Thus, the changes in the levels of soil salinity, alkalinity, crop yield, and other physicochemical properties in different soil types and crops after …
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Carbon dioxide utilization with carbonation using industrial waste-desulfurization gypsum and waste concrete Min-Gu Lee1 • Dongwoo Kang1 • Hoyong Jo1 • Jinwon Park1 Received: 2 July 2015/Accepted: 3 November 2015/Published online: 18 January 2016 Springer Japan 2016 Abstract In this study, we propose a process making
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The production of flue gas desulfurization gypsum poses a serious threat to the environment. Thus, utilizing gypsum-based self-leveling mortar (GSLM) stands out as a promising and effective approach to address the issue. β-hemihydrate gypsum, cement, polycarboxylate superplasticizer, hydroxypropyl methyl cellulose ether (HPMC), …
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main desulfurization technology are used by most countries to control emissions of SO2,at the same time generating a huge amount of flue gas desulfurization gypsum。This paper describes the physical and chemical properties of natural gypsum and FGD gypsum,reviews the utilization of experience and research status and progress of …
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In this study, we propose a process making calcium carbonate and calcium sulfate and recovering absorbent using ammonia absorbent, carbon dioxide, and industrial waste. The main objective of this study is to confirm the possibility of carbon capture and utilization based on waste materials. We assumed desulfurization gypsum and …
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A large number of coal-fired flue gas is the culprit that caused by air pollution and acid rain. Based on this reason, lime/limestone-gypsum wet flue gas desulfurization(FGD) process as the main desulfurization technology are used by most countries to control emissions of SO2,at the same time generating a huge amount of flue gas desulfurization gypsum...
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Firstly the basic characteristics of Flue-gas-desulfurization gypsum (FGD gypsum) is described in this paper. Then the research status of FGD gypsum is introduced, especially the comprehensive utilization of FGD gypsum. Finally, some suggestions are put forward to solve the problems existing in the application of FGD …
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Introduction. In the industrial production of China, the processing of phosphate rock, volcanic eruptions, kerosene combustion and aluminum smelting will lead to flue gas emissions containing a large amount of SO 2.SO 2 is a highly irritating gas. Because SO 2 is freely soluble in water and enters the respiratory tract, it can generate …
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Our findings suggest that end-of-pipe abatement technology can diffuse fast and to a great extent provided deep, consistent long-term regulatory commitment.
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"Going forward, importing countries will be increasingly looking to the Sultanate of Oman to meet their gypsum requirements. At the current rate of growth in exports, Oman's share is projected to rise to around 48 - 50 per cent of demand, which equates to over 130 million MT over the 2022- 2031 timeframe."
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The total annual coal production in China is about 4 billion tons, resulting in a huge amount of CSWM generated in the process of coal development and utilization [].These materials include coal gangue (CG), fly ash (FA), desulfurization gypsum (DG), gasification slag, and bottom ash [].The issues associated with the disposal of these …
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Regarding the utilization amount (ratio) of FGD gypsum in each utilization category, a previous report [30] showed that industrial byproduct gypsum (including FGD gypsum, phospho-gypsum, and titanium gypsum) used for wallboard (24.3 Mt, 27.8%) and cement retarder (60 Mt, 68.3%) production accounted for 96% of the total reuse …
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The flow chart of the utilization of FDG gypsum is shown in Fig. 12. After the desulfurization of flue gas from CSA cement industry itself and other industries, the collected FDG gypsum can be applied in later two steps during CSA manufacture. On the one hand, FGD gypsum is able to provide as input materials for the CSA cement.
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This article reviews the properties, production, and applications of flue gas desulfurized gypsum (FGD gypsum) in China, a by-product of coal combustion. It also …
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FGD gypsum is a by-product of flue gas desulfurization (FGD) to remove sulfur dioxide emissions from coal-fired power plants. It has various applications in …
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The semi-dry flue gas desulfurization ash (SFGDA) is an industrial waste generated by the semi-dry desulfurization process, and its resources have been continuously attracted attention. Through the method of heat decomposition, the SFGDA decomposed into CaO and SO2 has emerged as a prominent research topic. This paper …
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The high-active sorbent for SO2 removal was developed by mixing CaO particles with fly ash in water at ambient temperature. The calcium utilization rate in the sorbent was achieved to 60% after the desulfurization reaction at 450 °C for 90 min, while the utilization rate for original pure CaO particles was only 21% under the identical …
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Overview of the Industrial Byproduct Gypsum 2.1. Source Desulfurization gypsum (DG) is the byproduct of the limestone–gypsum flue gas desulfurization process in coal-fired power plants [] . In China, the annual production of DG can reach up to million tons, and the utilization rate has been around % in recent years.
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The search was performed using the Web of Science database with the following keywords: FGD gypsum, sustainable construction, building materials, construction industry, production of FGD gypsum, and utilization of FGD gypsum in various applications. The search yielded 455 publications, which were categorized and …
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Soil salinization has progressed rapidly in northeastern and western China. In addition, air pollution is one of the most serious environmental problems. To alleviate the problems of soil salinization, food shortages, and air pollution, we have studied the amelioration of salt-affected soil using the by-products of flue gas desulfurization …
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PDF | On Oct 1, 2009, Sheng-yu Liu and others published New Limestone-Gypsum Flue Gas Desulfuization Technology | Find, read and cite all the research you need on ResearchGate
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Carbon capture, utilization, and storage (CCUS) technologies are being developed to address the increasing CO2 emissions, mitigating the global warming and climate change. In this context, chemical precipitation has been advanced to enhance the performance, energy-efficiency and profitability of CCUS. In this review, we first present …
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To effectively solve the problem of recovery and utilization of flue gas desulfurized gypsum (FGDG), a new method for preparing SO2 gas by adding a mixture of FGDG and pyrite into a boiling furnace and utilizing its high-temperature waste heat is proposed. Using the FactSage 6.1 Reaction module and the Equilib module, the …
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Here the authors show that the global diffusion of flue gas desulfurization technology was very fast at times, especially for retrofit, and even after materiality, but strongly depended on regulation.
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The industrial byproduct gypsum is a general term for byproducts discharged from industrial production with calcium sulfate as the main ingredient. Due to the high number of impurities and production volume, the industrial byproduct gypsum is underutilized, leading to serious environmental problems. At present, only …
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DOI: 10.1016/j.fuel.2021.122898 Corpus ID: 245313567; Utilization of desulfurization gypsum potentially impairs the efforts for reducing Hg emissions from coal-fired power plants in China
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Like natural gypsum, the application of flue gas desulfurization gypsum (FGDG) with irrigation provides economic and environmental value (Wang and Yang, 2018; Watts and Dick, 2014). FGDG is of low cost, because it is a side product of sulfur removal from fuel combustion in coal-fired power plants and does not require mining and …
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Liu et al. [26], [27] and Zhao et al. [28] revealed that the utilization of C as a substitute for costly and perilous CO reduction gas, along with metallurgical kilns such as rotary kilns, can lead to the formation of calcium ferrite products via the blending and calcination of desulfurization gypsum that contains CaSO 4, C, and Fe 2 O 3. This ...
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As the waste of coal-fired power plant, desulphurization gypsum is mainly composed of CaSO 3 and CaSO 4, which can replace Na+ in saline-alkali soil to improve saline-alkali soil.In order to study the effect of different dosage of desulfurization gypsum on the improvement of saline-alkali land, field experiments were carried out in Duiziliang …
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1.1. Flue gas desulfurization processes. The flue gas desulfurization (FGD) processes can be separated into two main categories: once-through and regenerable processes, depending on how the sorbent is treated after SO 2 adsorption (Srivastava and Jozewicz, 2001).Once-through, or non-regenerable, processes utilize the sorbent as a …
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