Article
Energy & Fuels
Jingchun Yan, Tianxu Shen, Peng Wang, Xianglei Yin, Xiao Zhu, Shouxi Jiang, Laihong Shen
Summary: An innovative fluidized bed thermogravimetric analyzer was designed to study the performance of oxygen carriers in chemical looping combustion processes, revealing that high-grade manganese ore with less silicon content is more suitable for industrial CLC pilots.
Article
Energy & Fuels
Ratnakumar V. Kappagantula, Gordon D. Ingram, Hari B. Vuthaluru
Summary: Chemical Looping Combustion technologies have the ability to capture carbon dioxide and are modeled using a specialized Fluidized Bed Reactor block in Aspen Plus. Sensitivity studies showed that solid volume fraction decreases with bed height and superficial velocity, while the height to diameter ratio of the fluidized bed is an important variable in reactor design.
Article
Thermodynamics
Junjie Lin, Liyan Sun, Kun Luo, Dali Kong, Jianren Fan
Summary: In this study, three-dimensional simulations were used to investigate the flow behavior and reaction characteristics of a chemical looping combustion system. The numerical models developed in this work can be utilized for system design and scale-up, and the operating temperature and solid inventory have significant effects on system performance.
Article
Energy & Fuels
Joseba Moreno, Sally L. Homsy, Max Schmid, Gunter Scheffknecht
Summary: This study investigated the multicyclic behavior of limestone in a 20 kWth CaL facility and analyzed the performance of the carbonator under various process variables. The carbonator design achieved high CO2 capture efficiencies and apparent carbonation rates within the investigated operating conditions. The proposed design could potentially be integrated into existing load-following power plants for more flexible usage of CaL systems.
Article
Engineering, Environmental
Zhenwu Miao, Laihong Shen, Zhenshan Li, Tianxu Shen
Summary: The development of oxygen carrier particles with good cycling stability on an industrial scale remains a challenge in the field of chemical looping. In this study, a perovskite oxygen carrier was prepared using an industrial-scale spray drying granulation method and tested for long-term chemical looping combustion. The results showed that attrition and sintering of the particles increased with the number of redox cycles, and the perovskite structure was destroyed over time. Agglomeration mainly occurred in the reduction stage, leading to defluidization of the bed. Particle activation was found to increase the active area of the particles during the cycle, whether they were fluidized or not. Agglomeration started at the contact surface between the air distribution plate and the particles, resulting in blocked oxidation and deepening agglomeration.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jing Yang, Yujie Ren, Jinsuo Lu, Hongpan Liu, Zhiqiang Zhang, Heliang Pang, Keomounlath Bounkhong
Summary: The study investigated a new PG-CuFe2O4 oxygen carrier for reducing lignite in Chemical Looping Gasification (CLG) process, successfully capturing H2S and producing syngas with high proportions of CO and H2. Experimental results showed that PG-CuFe2O4 had excellent H2S capture ability, with Fe3O4, Cu, and FeS playing important roles in the H2S capture during the reduction process.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Gary Reineccius, Shardul Patil, Vaidhyanathan Anantharamkrishnan
Summary: This research compares granulation to spray drying/agglomeration for producing flavoring particles. The study finds that granulation produces better properties, such as improved oxidation resistance, higher density, without the need for a two-step process.
Article
Chemistry, Applied
Qi Hong, Peng Wang, Ziying Chen, Zhen Huang, Laihong Shen, Tao Song
Summary: Red mud shows low reactivity with methane and better reactivity with biomass char. It exhibits stable reactivity during oxygen carrier cycles, but tends to agglomerate during methane fluidized bed experiments.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Birgitta Narindri Rara Winayu, Chun-Ta Li, Hsin Chu
Summary: Calcined ilmenite was used as an oxygen carrier in chemical looping combustion (CLC) and achieved high conversion rates. Increasing syngas concentration, operating temperature, and superficial velocity improved the reaction rate and oxygen carrier utilization, but the application of CO and CH4 caused carbon deposition and surface blocking. High redox cycles had a negative effect on the performance of the oxygen carrier.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Edoardo De Lena, Borja Arias, Matteo C. Romano, J. Carlos Abanades
Summary: This study investigates a Calcium Looping (CaL) configuration for cement plants using two interconnected circulating fluidized bed (CFB) reactors. The proposed system combines calcination and fragmentation of limestone in a single unit, taking advantage of the limestone's tendency to attrition. The economic analysis shows that this configuration is competitive.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Green & Sustainable Science & Technology
Fangjun Wang, Wei Zhou, Shiyi Chen, Lunbo Duan, Wenguo Xiang
Summary: This study investigates the performance of the calcium looping process for biomass hydrogen-rich gasification and carbon dioxide capture. It shows that dolomite as bed material has a more significant improvement in hydrogen production compared to quartz sand. Furthermore, a higher temperature in the riser benefits tar conversion, and an increase in solid circulating flux improves hydrogen concentration and yield while reducing tar content.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Zhenwu Miao, Laihong Shen, Haibo Zhao
Summary: A study found that a single natural ore oxygen carrier (OC) is limited in its industrial application due to its weak reactivity and cyclic stability. Chemical looping combustion (CLC) cycle tests were conducted on a composite hematite and copper ore OC prepared by spray drying granulation using a fluidized bed thermogravimetric analyzer (FB-TGA). The results revealed a high attrition rate of OC in the early stage of fluidization, which stabilized after 6 minutes at 0.28%/h. The redox cycle reaction subjected the OC to chemical and thermal stresses, leading to decreased mechanical strength, increased particle attrition and sintering. This hindered the oxidation stage and resulted in deep reduction of OC, causing particle agglomeration and loss of fluidization. Therefore, reducing the oxygen transfer capacity and residence time in the fuel reactor is beneficial for the safe operation of OC in industry.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Birgitta Narindri Rara Winayu, Bing -Hong Li, Hsin Chu
Summary: This study investigates the application of 40% Fe2O3/TiO2 as an oxygen carrier in chemical looping combustion (CLC) technology and examines the factors influencing its reaction rate. The experimental results demonstrate that higher reaction rates and utilization values can be achieved by increasing superficial velocity, operating temperature, and the concentration of CO or H-2 under different operating conditions.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Energy & Fuels
Lei Liu, Zhenshan Li, Ningsheng Cai
Summary: This study reports tonnage-scale preparation of manganese oxygen carrier particles using industrial spray drying granulation with original manganese ore and kaolin fines. It found that reaction temperature and gas concentrations of O-2, H-2, and CH4 have an impact on redox kinetics, with H-2 reduction being approximately 6 times faster than CH4 reduction.
Article
Chemistry, Physical
Viktor Stenberg, Vincenzo Spallina, Tobias Mattisson, Magnus Ryden
Summary: This study conducts a techno-economic assessment for processes with inherent CO2 separation, presenting two process configurations integrating steam reforming with chemical-looping combustion system, and comparing their key performance parameters and economic benefits.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Xiaoyun Li, Anders Lyngfelt, David Pallares, Carl Linderholm, Tobias Mattisson
Summary: This study investigates the effect of volatile distributor on the lateral distribution of volatiles in a fluidized bed under different operational conditions. The results show that a volatile distributor with uneven hole arrangements can provide a more uniform horizontal distribution of volatiles, suitable for different fluidization regimes.
Article
Engineering, Environmental
Daofeng Mei, Amir H. Soleimanisalim, Anders Lyngfelt, Henrik Leion, Carl Linderholm, Tobias Mattisson
Summary: Manganese ore EB exhibits higher reactivity with syngas but lower reaction rate with CH4 compared to other manganese ores. Improving the contact between volatiles and bed material is crucial for enhancing combustion performance in the CLC process.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Nasrin Nemati, Yukari Tsuji, Tobias Mattisson, Magnus Ryden
Summary: This study investigated the conversion of gaseous fuels during chemical looping combustion (CLC) in a packed fluidized reactor. The use of packings was found to improve the fuel conversion by enhancing gas-solid mass transfer, mainly due to the reduced bubble size. The results were consistent for different fuels, packings, and bed heights.
Article
Energy & Fuels
Daofeng Mei, Anders Lyngfelt, Henrik Leion, Carl Linderholm, Tobias Mattisson
Summary: Alkali is a problematic component in biomass combustion and chemical looping combustion using biomass fuels. This study investigated the interaction between alkali and an oxygen carrier by adding alkali salts to impregnated charcoal particles. The experiments showed that using alkali-impregnated charcoal led to partial agglomeration and defluidization, with the use of K-charcoal resulting in faster agglomeration/defluidization compared to Na-charcoal. Partial agglomeration could be due to surface melting of the braunite particles, while the formation of a low-melting-point Na-Si-Ca system could be responsible for agglomeration in Na-charcoal experiments. The concentration of alkali in the braunite bed increased with the use of alkali charcoals, but the reactivity of the used braunite was hardly affected.
Article
Energy & Fuels
Ivana Stanicic, Rainer Backman, Yu Cao, Magnus Ryden, Jesper Aronsson, Tobias Mattisson
Summary: Oxygen Carrier Aided Combustion (OCAC) is a novel approach for burning waste in a fluidized bed. This study analyzed solid samples from an industrial OCAC application using municipal solid waste and ilmenite as the oxygen carrier. The presence of oxygen carriers was found to influence the ash chemistry and the distribution of elements throughout the particle cross-section. The results provide valuable insights into the solid-state chemistry and fate of important elements.
Article
Energy & Fuels
Tharun Roshan Kumar, Tobias Mattisson, Magnus Ryden
Summary: This study presents a techno-economic analysis of biofuel production using Fischer-Tropsch synthesis (FTS) as the primary gasification process. The results show that off-gas recirculation significantly reduces the production costs of FT crude, and the hot-gas cleanup process configuration has higher energy efficiency and lower production costs compared to the cold-gas cleanup process configuration.
Article
Energy & Fuels
Ivana Stanicic, Joakim Brorsson, Anders Hellman, Tobias Mattisson, Rainer Backman
Summary: Chemical looping combustion (CLC) enables efficient combustion of hydrocarbon fuels while producing a gas stream with high CO2 concentrations. This paper investigates the fate of ash elements in a system using iron-based oxygen carriers and provides a comprehensive comparison with previous experimental data. The study finds that the choice of oxygen carriers significantly influences the behavior of ash elements.
Article
Engineering, Chemical
Xiaoyun Li, Anders Lyngfelt, Carl Linderholm, Bo Leckner, Tobias Mattisson
Summary: By introducing internal baffles, the volatiles distributor (VD) has been improved to achieve a more uniform distribution of gas and reduce volatiles slip, thereby improving gas-solid contact. The results show that the internal baffles significantly enhance the uniformity of the horizontal distribution, particularly in the single and multiple bubble regimes.
Article
Green & Sustainable Science & Technology
Pietro Bartocci, Alberto Abad, Tobias Mattisson, Arturo Cabello, Margarita de las Obras Loscertales, Teresa Mendiara Negredo, Mauro Zampilli, Andrea Taiana, Angela Serra, Inmaculada Arauzo, Cristobal Cortes, Liang Wang, Oyvind Skreiberg, Haiping Yang, Qing Yang, Wang Lu, Yingquan Chen, Francesco Fantozzi
Summary: Carbon Capture and Storage (CCS) is essential for achieving Sustainable Development Goals 7 and 5. Chemical Looping Combustion (CLC) is a cost-effective method for capturing CO2. This review aims to summarize key highlights in the field and propose an optimization procedure for designing pressurized chemical looping reactors coupled with turbo expanders for power production with carbon negative emissions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Energy & Fuels
Fredrik Hildor, Amir H. Soleimanisalim, Martin Seemann, Tobias Mattisson, Henrik Leion
Summary: This study investigates the effect of using steel converter slag as an oxygen-carrying bed material on tar species generated in a dual fluidized bed biomass gasifier. The findings suggest that steel converter slag possesses catalytic properties, resulting in a decreased ratio of heavy tar components compared to ilmenite and sand. Temperature and fuel load have a significant effect on tar generation compared to the circulation and steam ratio.
Article
Energy & Fuels
Inaki Adanez-Rubio, Tobias Mattisson, Marijke Jacobs, Juan Adanez
Summary: Chemical Looping with Oxygen Uncoupling (CLOU) is a technology that separates the oxygen for fuel combustion using an oxygen carrier in a fuel reactor. This study investigates the behavior of Mn/Mg/Si system as oxygen carriers for CLOU. The most reactive oxygen carriers without Si in the structure were found to be M24Mg76 and M48Mg51. These carriers showed good reactivity and mechanical stability in a batch fluidized bed reactor.
Article
Energy & Fuels
Victor Purnomo, Ivana Stanicic, Daofeng Mei, Amir H. Soleimanisalim, Tobias Mattisson, Magnus Ryden, Henrik Leion
Summary: Iron sand, a by-product of the industry, has a reasonable iron content and low cost. It has been found that iron sand can be used as an oxygen carrier in chemical looping gasification (CLG), with an oxygen transfer capacity lower than ilmenite. Utilizing iron sand leads to higher conversion rates of pine forest residue char to CO and H2 compared to ilmenite. The study also presents novel findings on the crystalline phase transformation of iron sand at different oxidation levels.
Article
Chemistry, Applied
Muhammad Nauman Saeed, Mohammad Shahrivar, Gajanan Dattarao Surywanshi, Tharun Roshan Kumar, Tobias Mattisson, Amir H. Soleimanisalim
Summary: The second-generation bio aviation fuel production via Chemical Looping Gasification (CLG) combined with downstream Fischer-Tropsch (FT) synthesis is a possible way to decarbonize aviation sector. This study models the full chain process of biomass to liquid fuel (BtL) with LD-slag and Ilmenite as oxygen carriers using Aspen Plus software, validates the results with experiments, and conducts a techno-economic analysis of the process.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Energy & Fuels
Fredrik Hildor, Tobias Mattisson, Carl Linderholm, Henrik Leion
Summary: This study investigates the effect of adding small amounts of more reactive elements into steel converter slag, which improves its reactivity towards CO and CH4, and increases the conversion rate of benzene.
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Daofeng Mei, Anders Lyngfelt, Henrik Leion, Tobias Mattisson
Summary: Chemical looping combustion (CLC) is a technology that can generate heat and power while capturing CO2. Using biomass in CLC (bio-CLC) allows for negative CO2 emissions. This study investigates the interaction between alkalis in biomass and the process, focusing on charcoal impregnated with alkali chlorides. The results show that impregnation with alkalis improves the gasification rate, with carbonates resulting in earlier and more permanent defluidization compared to chlorides. Partial agglomeration and retention of alkalis in the oxygen carrier are observed, with similar reactivity noticed with CH4 and H2.