Article
Energy & Fuels
Yuting Wu, Yunji Pang, Yisheng Chen, Maosen Zhai, Mingjie Zheng
Summary: The addition of additives to biomass can affect the gasification reaction rate of biomass char particles; CaO can accelerate the reaction rate while Fe2O3 can delay it. Additionally, a combination of different catalysts can reduce the total activation energy and promote the steam gasification reaction of char.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Wang Liang, Xiaojun Ning, Guangwei Wang, Jianliang Zhang, Rongpeng Li, Weiwei Chang, Chuan Wang
Summary: The study found that the gasification reactivity of semi-coke is lower than bamboo reed char, but the addition of bamboo reed char can significantly enhance the gasification reaction performance. Experimental and theoretical results demonstrate the synergistic effect between bamboo reed char and semi-coke, and significant kinetic compensation effect was observed in the co-gasification reaction through kinetic fitting.
Article
Energy & Fuels
Bo Wang, Fanfan Xu, Xin Wang, Jun Li, Yongyi Song, Yingyun Qiao, Yuanyu Tian
Summary: This study provides a comprehensive comparative investigation on feedstock pyrolysis and char gasification performance of typical forestry biomass from Northeast Asia. The results showed that different forestry biomass has close thermal decomposition characteristics, and Salicaceae char has better gasification performance than Pinaceae char due to its high AAEMs content.
Article
Energy & Fuels
Bo Wang, Fanfan Xu, Xin Wang, Jun Li, Yongyi Song, Yingyun Qiao, Yuanyu Tian
Summary: The present study provides a comprehensive comparative investigation on the feedstock pyrolysis and char gasification performance of typical forestry biomass from Northeast Asia. The results show that different forestry biomass has similar thermal decomposition characteristics, and the performance of Salicaceae is better than that of Pinaceae in terms of pyrolysis and char gasification.
Article
Energy & Fuels
Jianfeng Cai, Zhimin Lu, Jinzheng Chen, Jing Chen, Zhengyan Bao, Shengyuan Guo, Shunchun Yao
Summary: Kinetic analysis is crucial in the gasification process. This study investigates the kinetic behavior of CO2 gasification of various wood chars using a non-isothermal method. The performance of different models is compared, and it is found that the two-step model shows the best performance. The results provide valuable experimental data for understanding the gasification process.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Energy & Fuels
Kenji Koido, Takayuki Hoshi, Michio Sato
Summary: This study investigated the fuel characteristics of fruit-tree branches and proposed a reaction model for the CO2 gasification process. The results showed that the porous structure of the branches affected the gasification process, and the eMRPM model accurately described the peak gasification rate at the end of gasification. These findings have important implications for energy production using fruit-tree branches.
Article
Thermodynamics
Juntao Wei, Qinghua Guo, Xudong Song, Lu Ding, Alexander Mosqueda, Yurong Liu, Kunio Yoshikawa, Guangsuo Yu
Summary: This study investigated the co-gasification of blended char of bituminous coal and rice straw at different temperatures and found that the interaction between the binary particles influenced the reactivity and kinetics during co-gasification. The synergistic effect was weaker at higher HTC and gasification temperatures, affecting the transformation of mineral matter and the chemical structure evolution. The results suggest that the presence of synergistic effect can enhance blended char reactivity and improve co-gasification kinetics.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Lirui Mao, Hanxu Li, Baoliang Xia, Tao Liu, Yuanchun Zhang, Mingdong Zheng
Summary: This paper studied the gasification characteristics of demineralized anthracite char using Ca/Fe-based auxiliaries. The results showed that both Ca/Fe-based auxiliaries had a catalytic effect on the gasification reactivity of anthracite char, with the catalytic product becoming more evident with the increase in the additional amount. The synergistic effect of the Ca-Fe composite auxiliaries was better than that of a single Ca and Fe catalyst, especially in the middle of the reaction. The addition of Fe-based auxiliaries only reduced the activation energy of the CO2 gasification reaction, while the addition of Ca-based auxiliaries caused some stimulating changes in the reaction process.
THERMOCHIMICA ACTA
(2022)
Article
Energy & Fuels
Shengguo Zhao, Liang Ding, Yun Ruan, Bin Bai, Zegang Qiu, Zhiqin Li
Summary: The study investigated the gasification characteristics of corn stalk char and the impact of alkali and alkali earth metals on gasification rate, with various models used to describe the gasification behavior. Results showed that the gasification rate of CSC was significantly influenced by steam partial pressure.
Article
Energy & Fuels
Christoph Schneider, Stella Walker, Aekjuthon Phounglamcheik, Kentaro Umeki, Thomas Kolb
Summary: This study investigates the thermal deactivation of beech wood chars during secondary pyrolysis, showing that the initial conversion rate Ro decreases linearly from 1000 degrees C to 1400 degrees C, but increases significantly at 1600 degrees C. Graphitization of the carbon matrix and CaO dispersion were also analyzed, indicating the formation of thin CaO layers at 1600 degrees C, which greatly affect the char reactivity.
Article
Thermodynamics
Ruochen Wu, Jacob Beutler, Larry L. Baxter
Summary: This investigation examines the trends in biomass char diameter during gasification using continuous particle size data and a theoretical model to describe the variations. The model captures the qualitative and most of the quantitative variation in the data.
Article
Thermodynamics
Yukai Li, Shaozeng Sun, Dongdong Feng, Wenda Zhang, Yijun Zhao, Yukun Qin
Summary: Syngas tempering technology is a method to consume excess O2 in flue gas and increase the reactivity of reburning coal to reduce NO emissions. Experimental results showed that syngas tempering increased the specific surface area and pore volume of char, while decreasing the content of oxygen-containing groups and increasing the content of alkyl groups. CH4 exhibited a better tempering effect than H2, while the effect of CO was not significant. The study provides insights for improving the removal efficiency of existing pulverized coal reburning for NOx emissions reduction.
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Article
Energy & Fuels
Wei Yi, Xianhua Wang, Kuo Zeng, Haiping Yang, Jingai Shao, Shihong Zhang, A. Paul Watkinson, Hanping Chen
Summary: In this study, the effect of medium temperature devolatilization (MTD) on biomass gasification kinetics was investigated. Isothermal steam gasification experiments were performed on corn stalk and its MTD-chars. It was found that the influences of alkali and alkaline earth metal (AAEM) on the gasification process varied under different conversion rates, which resulted in fitting errors for the random pore model. Therefore, a semi-empirical kinetic model called RPM+ was developed to accurately describe the catalytic effects of AAEMs on biomass gasification. This study is significant for the simulation and design of biomass staged gasification processes, as well as the high-value utilization of biomass with high AAEMs content through gasification.
Article
Thermodynamics
Siqi Liu, Liping Wen, Yanqing Niu, Bokang Yan, Yu Lei, Denghui Wang, Shi'en Hui
Summary: The impact of CO2 on coal char combustion is complex due to its thermal and chemical effects. Experimental results show that carbon conversion ratios exhibit a V-type distribution with increasing CO2 concentrations, with minimum conversion points at 5-10%. The endothermicity effect of gasification reaction becomes more influential at higher CO2 concentrations.
COMBUSTION AND FLAME
(2022)
Article
Chemistry, Physical
Xiaodong Huo, Zhiqing Wang, Jiejie Huang, Rong Zhang, Yitian Fang
CATALYSIS COMMUNICATIONS
(2016)
Article
Thermodynamics
Qian Zhang, Qingfeng Li, Linxian Zhang, Zhongliang Yu, Xuliang Jing, Zhiqing Wang, Yitian Fang, Wei Huang
Article
Energy & Fuels
Li Li, Zhiqing Wang, Jiejie Huang, Shaohua Ji, Yangang Mei, Yongwei Wang, Yitian Fang
Article
Energy & Fuels
Yangang Mei, Zhiqing Wang, Huibin Fang, Yongwei Wang, Jiejie Huang, Yitian Fang
Article
Chemistry, Physical
Tao Liu, Shunxuan Hu, Zhongliang Yu, Jiejie Huang, JiaZhou Li, Zhiqing Wang, Yitian Fang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Thermodynamics
Yongwei Wang, Zhiqing Wang, Jiejie Huang, Yitian Fang
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2018)
Article
Thermodynamics
Guang Li, Zheyu Liu, Junguo Li, Yitian Fang, Jie Shan, Shuai Guo, Zhiqing Wang
APPLIED THERMAL ENGINEERING
(2018)
Article
Engineering, Environmental
Qian Zhang, Qingfeng Li, Hongliang Wang, Zhiqing Wang, Zhongliang Yu, Linxian Zhang, Wei Huang, Yitian Fang
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Energy & Fuels
Songping Gao, Lingrui Zhai, Yuhong Qin, Zhiqing Wang, Jiantao Zhao, Yitian Fang
Article
Thermodynamics
Guang Li, Zheyu Liu, Tao Liu, Jie Shan, Yitian Fang, Zhiqing Wang
ENERGY CONVERSION AND MANAGEMENT
(2018)
Article
Energy & Fuels
Meijie Du, Jiejie Huang, Zheyu Liu, Xing Zhou, Shuai Guo, Zhiqing Wang, Yitian Fang
Article
Chemistry, Applied
Zhi-Rong Yang, Qing-Yan Meng, Jie-Jie Huang, Zhi-Qing Wang, Chun-Yu Li, Yi-Tian Fang
FUEL PROCESSING TECHNOLOGY
(2018)
Article
Chemistry, Physical
Guang Li, Zheyu Liu, Rongtao Feng, Weihong Jiao, Yitian Fang, Zhiqing Wang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Physical
Guang Li, Zheyu Liu, Junguo Li, Yitian Fang, Tao Liu, Yangang Mei, Zhiqing Wang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Energy & Fuels
Shengguo Zhao, Liang Ding, Yun Ruan, Bin Bai, Zegang Qiu, Zhiqin Li
Summary: The study investigated the gasification characteristics of corn stalk char and the impact of alkali and alkali earth metals on gasification rate, with various models used to describe the gasification behavior. Results showed that the gasification rate of CSC was significantly influenced by steam partial pressure.
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
