The modified limestone achieves faster carbonation rates and higher carbonation conversions under the same conditions during cyclic reactions. Kinetics of limestone decomposition in hot metal. By continuing you agree to the use of cookies. Zehua Li, Yin Wang, Zhiwei Li, Guangqian Luo, Shiying Lin, Hong Yao. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. The modified CaO-based sorbents were tested for their cyclic carbonation behavior in a fixed bed reactor. Luning Tian, Hanping Chen, Zhenhui Chen, Xianhua Wang, Shihong Zhang. Find more information on the Altmetric Attention Score and how the score is calculated. This level is 27% from a cement works because of … The performance of limestone‐derived CaO during many (>1000 in some cases) calcination and carbonation cycles is reported. In the present work, the effects of temperature (up to 1293 K) and residence time on the decomposition behaviors of limestone particles (0.25−0.5 mm) in a CO2 atmosphere were investigated using a continuously operating fluidized bed reactor for CO2 capture. Energy analysis of CaCO3 calcination with CO2 capture. Testing of the technology, which uses cheap limestone-derived material to trap carbon dioxide, has been underway at two different megawatt-scale … Get article recommendations from ACS based on references in your Mendeley library. ► This synthesis also restored the CO2 capture activity of spent sorbent. Genjian Xu, Zhaoshun Meng, Xiaojian Guo, Hongwei Zhu, Kaiming Deng, Chuanyun Xiao, Yuzhen Liu. R. C. BARBOSA, C. E. HORI, J. J. R. DAMASCENO. Estudo do aproveitamento de resíduo da mineração rico em calcário para captura de dióxido de carbono. Jianjun Cai, Shuzhong Wang, Ming Luo, Donghai Xu. These results showed that, with periodic hydration–dehydration steps, CaO-based sorbents can be used for extended times in CO2 looping cycles. Chem. In the present work, the effects of temperature (up to 1293 K) and residence time on the decomposition behaviors of limestone particles (0.25−0.5 mm) in a CO2 atmosphere were investigated using a continuously operating fluidized bed reactor for CO2 capture. Low-cost Bayer aluminum hydroxide sourced from the … Capture Capacity. Mingchun Li, Lanting Song, Yusheng Wu. Cong Luo, Ying Zheng, Ning Ding, Chu-guang Zheng, Calcium Looping Technology Using Improved Stability Nanostructured … These metrics are regularly updated to reflect usage leading up to the last few days. Batch experiments under alternating calcination-carbonation conditions were carried out to investigate the effect of Moreover, after the spent sorbents modified with hydration–dehydration technique again, the sorbents recovered their cyclic activity, which was also confirmed by XRD spectrum, nitrogen physisorption analyses and SEM analyses. ► The hydration–dehydration technique was used to improve the durability of limestone. Industrial & Engineering Chemistry Research. 2 2,,,,,,,,,,,,,,,,,,,,,,,,,, The hydration and carbonation reactivities of CaO produced by the limestone decomposition were also tested. Find more information about Crossref citation counts. Effect of Coal Combustion on the Reactivity of a CaO-Based Sorbent for CO2 Capture. Mei Zhong, Yin Wang, Jian Yu, Yajun Tian, Guangwen Xu. Their morphology, pore structure and phase composition before and after carbonation/calcination cycles were determined by scanning electron microscopy, nitrogen adsorption, and X-ray diffraction. Decomposition conversions (CaCO3 → CaO) were 73% at 1193 K and 95% at 1293 K, with a 70 min average residence time of particles in the bed. L. M. Armstrong, S. Gu, and K. H. Luo . Clicking on the donut icon will load a page at with additional details about the score and the social media presence for the given article. Abstract Attrition of a limestone during calcium looping cycles for CO2 capture was studied in a labscale fluidized bed apparatus. Self-Fluidization in an Indirectly Heated Calciner. In this work, the mechanical modification method (dry planetary ball milling) was used to improve the cyclic CO2 capture performance of naturally occurring limestone. Limestone Calcination with CO 2 Capture (II): Decomposition in CO 2/Steam and CO 2/N 2 Atmospheres. International Journal of Greenhouse Gas Control. Dolomite, CaMg(CO 3 ) 2 , another low-cost and abundantly available naturally occurring mineral, can also be used as the precursor for CaO-based sorbents production. Shiyi Chen, Dong Wang, Zhipeng Xue, Xiaoyan Sun, Wenguo Xiang. 2 Review and research needs of Ca-Looping systems modelling for post-combustion CO2 capture applications. The results show that the rate of limestone decomposition was strongly dependent upon the pressure difference between the equilibrium CO2 … Influence of Organic Matters on the Calcium Carbonate Decarbonization Process. Sunho Choi, Jeffrey H. Drese, Christopher W. Jones. An environment-friendly process for limestone calcination with CO2 looping and recovery. Influence of calcination conditions on carrying capacity of CaO-based sorbent in CO2 looping cycles. Sequestration of carbon dioxide by reacting it with calcium to form safe, stable limestone. 5. Experimental study on CO2 capture conditions of a fluidized bed limestone decomposition reactor. Zehua Li, Yin Wang, Zhiwei Li, Meng Li, Kai Xu, Wenqiang Liu, Guangqian Luo, and Hong Yao . Your Mendeley pairing has expired. Mechanism of Particle Breakage during Reactivation of CaO-Based Sorbents for CO2 Capture. Evaluation of process variables on the performance of Sorption Enhanced Methane Reforming. (a) Calcined limestone after 10 cycles, (b) calcined carbide slag after 10 cycles, (c) calcined limestone after 100 cycles and (d) calcined carbide slag after 100 cycles. The Role of Water on the Performance of Calcium Oxide-Based Sorbents for Carbon Dioxide Capture: A Review. Adsorbent Materials for Carbon Dioxide Capture from Large Anthropogenic Point Sources. A model was proposed to describe the distribution of limestone particles in the fluidized bed reactor with residence time. Limestone Calcination with CO2 Capture (III): Characteristics of Coal Combustion during Limestone Decomposition. In this study, a simple and flexible hydration–dehydration technique was used to improve the cyclic performance of calcined natural limestone to make it highly suitable for CO 2 capture. Vasilije Manovic, Jean-Pierre Charland, John Blamey, Paul S. Fennell, Dennis Y. Lu, Edward J. Anthony. Lime is used for environmental purposes, e.g., waste neutralization or flue gas desulphurization, and in industrial processes, e.g., for formation of metallurgical slags or for production of paper pigments. Calcium looping gasification for high-concentration hydrogen production with CO2 capture in a novel compact fluidized bed: Simulation and operation requirements. Investigations at a 10 kW th calcium looping dual fluidized bed facility: Limestone calcination and CO 2 capture under high CO 2 and water vapor atmosphere. Chem. National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan, and Japan Coal Energy Center, 3-14-10 Mita, Minato-ku, Tokyo 108-0073, Japan. Limestone Acidification Using Citric Acid Coupled with Two-Step Calcination for Improving the CO2 Sorbent Activity. You’ve supercharged your research process with ACS and Mendeley! ► This synthesis offered a CaO with less crystallinity and higher surface area.

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