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
Chemistry, Applied
Viktor Andersson, Amir H. Soleimanisalim, Xiangrui Kong, Henrik Leion, Tobias Mattisson, Jan B. C. Pettersson
Summary: The study investigates the interactions between alkali and an oxygen carrier in Chemical-Looping Combustion (CLC) to better understand the fate of alkali in the process. Results show that alkali uptake is limited under oxidizing conditions but significant during stable reducing conditions.
FUEL PROCESSING TECHNOLOGY
(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
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
Engineering, Environmental
Lei Liu, Zhenshan Li, Zuoan Li, Yngve Larring, Ningsheng Cai
Summary: The MFB-TGA method is effective in measuring fast heterogeneous kinetics of oxygen carriers, overcoming limitations observed in TGA. The study investigated oxygen uncoupling and redox reaction kinetics of CaMn0.5Ti0.375Fe0.125O3-delta, revealing oxidation reactions are chemically controlled, while reduction reactions have both fast and slow stages. Analyzing the MFB-TGA data provided kinetic parameters for both oxygen uncoupling and redox reactions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Environmental Sciences
Hayder A. Alalwan, Alaa H. Alminshid
Summary: This report discusses recent advancements in CO2 capturing methods, with a focus on chemical looping combustion (CLC) as a promising technology. CLC is highlighted for its ability to reduce the cost of CO2 separation and concentrate the captured CO2, making it a feasible option for carbon capture.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Lei Liu, Zhenshan Li, Yang Wang, Zuoan Li, Yngve Larring, Ningsheng Cai
Summary: A spray drying granulation protocol was developed to produce an industrial-scale perovskite oxygen carrier. Micro-fluidized bed thermogravimetric experiments were performed to measure the reaction kinetics, and the obtained data was fitted by a semi-empirical kinetic model. The upscaled granulates showed similar physical and chemical properties to the laboratory-scale particles, with high reaction rates, low attrition rates, and low energy consumption.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Siqi Liu, Fang He, Kun Zhao, Haibo Zhao, Zhen Huang, Guoqiang Wei, Wen Yang
Summary: Coal chemical looping gasification (CCLG) is a promising technology with high resource utilization rate and environmental protection properties, requiring suitable oxygen carriers and optimized operating conditions for coal conversion and H2&CO production. This study tested a Cu-Fe bi-ore oxygen carrier and found that the optimal gasification conditions were at 950 degrees C with a oxygen carrier-to-coal mass ratio of 3:1 and steam rate of 0.08 ml/min, achieving a syngas yield of 58 mmol/g, 75.2% syngas selectivity, and 85.3% carbon conversion.
Article
Energy & Fuels
Eleni F. Iliopoulou, Charitini Matsouka, Eleni Pachatouridou, Flora Papadopoulou, Antonios Psarras, Antigoni Evdou, Vassilios Zaspalis, Lori Nalbandian
Summary: Novel customized lanthanum calcium manganese perovskite structures with varying calcium content were studied for their oxygen transfer capacity, methane oxidation ability, selectivity to CO2 and CO, and stability in multiple reduction-oxidation cycles. The results showed that increasing calcium content enhanced the reducibility and oxygen adsorption capacity of the materials. Among the studied perovskites, CaMnO3 demonstrated the best redox properties.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Environmental
Lei Liu, Zhenshan Li, Zuoan Li, Yngve Larring, Ningsheng Cai
Summary: This study investigates the effect of SO2 on the redox kinetics of a CaMn0.375Ti0.5Fe0.125O3-delta perovskite oxygen carrier, revealing that SO2 has minimal impact on reduction reactivity at high temperatures but decreases oxidation reactivity. The sulfur mainly exists in the form of sulfates/sulfides on the particle surface, leading to sulfur poisoning effect during oxidation and reduction processes.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Richard A. Newby, Dale L. Keairns, Robert W. Stevens
Summary: The objective of this study was to estimate the cost of commercial production of oxygen carriers (OCs) for large-scale application in the chemical looping combustion (CLC) power generation industry. Two production facility scenarios were considered, and two OC production techniques were addressed. The estimated OC product costs can be used to guide development and determine the maximum OC makeup rate for achieving a designated cost-of-electricity (COE) reduction goal.
Article
Energy & Fuels
Pietro Bartocci, Alberto Abad, Arturo Cabello Flores, Margarita de las Obras Loscertales
Summary: To address the scale-up challenges of Chemical Looping Processes, the development of efficient and affordable oxygen carriers is crucial. Ilmenite, an ore-derived oxygen carrier, has been identified as an abundant and low-cost option. This paper provides insights into its preparation, reactivity, and performance compared to other carriers, along with its thermodynamic properties and kinetics. The paper also explores its compatibility with various fuels (solid, liquid, gaseous, including biofuels) and discusses important considerations such as cost, environmental sustainability, oxygen transport capacity, as well as issues related to fluidized bed reactors, such as agglomeration and attrition behavior. Furthermore, the paper investigates the interaction between ilmenite and fuels, including the impact of impurities and coke deposition on the gasification rate of solid fuels.
Review
Energy & Fuels
Dunyu Liu, Chaoran Wang, Yunpei Fan, Qiuqi Liu, Xudong Wang, Kailong Xu, Jing Jin, Jingjing Ma, Jinchen Ma
Summary: Chemical looping combustion (CLC) of coal for carbon capture utilization and storage is an effective technology to reduce carbon emission. However, there is uncertainty in mercury emission from both air and fuel reactor. This paper aims to reveal the mechanisms for the transformation of mercury-related species.
Article
Engineering, Environmental
Jinchen Ma, Daofeng Mei, Chaoquan Wang, Xin Tian, Zhaohui Liu, Haibo Zhao
Summary: This study investigated the fate of sulfur during in-situ gasification chemical looping combustion of coal, highlighting the resistance of Fe2O3/Al2O3 to sulfur and the positive effects of temperature and oxygen/fuel ratio on the conversion of sulfur compounds. Additionally, the research demonstrated the desulfurization function of coal ash and the effective conversion of sulfur-containing gases into SO2 using oxygen carrier materials.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Applied
Dingshan Cao, Cong Luo, Wenting Xing, Guoqiu Cai, Tong Luo, Fan Wu, Xiaoshan Li, Liqi Zhang
Summary: Coal-direct chemical looping hydrogen generation (CDCLHG) is a novel process that directly produces H-2 from coal and captures CO2. In this study, perovskite oxygen carriers were synthesized and BaMnO3 was found to be the optimal oxygen carrier for CDCLHG, achieving high H-2 gas production with a high H-2 gas production rate. The BaMnO3-delta obtained during the reaction process showed the conversion of lattice oxygen to carbonate oxygen and can recover its initial structure.
FUEL PROCESSING TECHNOLOGY
(2022)
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.
