Article
Chemistry, Applied
Hagos Birhane Asfha, Ashenafi Hailu Berta, Nayoung Kang, Danim Yun, Jaedeuk Park, Yong-Ki Park, Kiwoong Kim
Summary: In this study, a reaction mechanism of light straight run naphtha cracking over micro-spherical catalyst containing HZSM-5 was systematically investigated. The results showed that light paraffins and olefins were the primary products, and oligomerization and β-scission cracking dominated the secondary reactions. Experiments on single hydrocarbon feeds indicated that BTX formation proceeded via the formation of cycloalkanes and cyclo-olefinic intermediates. Temperature and space time influenced the product selectivity, with propylene selectivity increasing at lower temperatures and ethylene selectivity increasing at higher temperatures.
Article
Energy & Fuels
David Chaos-Hernandez, Hilda Elizabeth Reynel-Avila, Didilia Ileana Mendoza-Castillo, Adrian Bonilla-Petriciolet, Ismael Alejandro Aguayo-Villarreal
Summary: This study optimized the pyrolysis, functionalization, and activation of coconut endocarp-based catalysts for transesterification to produce FAME. Results showed that thermal activation improved catalyst properties, leading to high FAME formation. Physicochemical characterization explained the performance of these catalysts, suggesting their potential as a low-cost alternative for biodiesel production.
Article
Environmental Sciences
Peng Liu, Zhuo Chen, Xueqin Li, Wenxuan Chen, Yanling Li, Tanglei Sun, Yantao Yang, Tingzhou Lei
Summary: In this study, Ni/HZSM-5 and Ni-Ca-Co/HZSM-5 catalysts were prepared by different auxiliary methods, Ni loadings, and pyrolysis temperatures to improve the removal rate of VOCs. The results showed that the Ni/HZSM-C-Co5 catalyst with Ni loading of 8 wt%, Ca loading of 4 wt%, Co loading of 0.1 wt% had strong catalytic activity for VOCs degradation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Kosuke Watanabe, Takuma Higo, Hideaki Tsuneki, Shun Maeda, Kunihide Hashimoto, Yasushi Sekine
Summary: This study found that the perovskite oxide YCrO3 exhibits higher catalytic activity and C2H4 selectivity in the presence of steam, which is significant for improving the efficient production of ethylene. Steam plays an important role in stabilizing the catalyst's high activity and inhibiting coke accumulation.
Article
Chemistry, Applied
Andreas Eschenbacher, Jakob Afzali Andersen, Anker Degn Jensen
Summary: The study investigated the catalytic vapor phase upgrading of acetol over different microporous and mesoporous HZSM-5 catalysts. Increasing temperature led to higher gas yield, lower coke yield, increased acetol conversion, and higher selectivities to oxygen-free hydrocarbons. The catalyst characteristics played a role in the reaction outcomes.
Article
Agricultural Engineering
R. Jennita Jacqueline, V. Shenbaga Muthuraman, C. Karthick, Abed Alaswad, G. Velvizhi, K. Nanthagopal
Summary: In this study, microwave pre-treatment and catalytic aided co-pyrolysis techniques were used to produce sustainable biofuels from three different biowastes. The biofuels showed high yield rates and energy densities, making them suitable for automotive applications.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Guangxuan Liu, Xiaowei Bai, Yalkunjan Tursun, Zhenghua Dai, Yunpeng Zhao, Xian Li, Jian Li
Summary: This study investigates the dehydration of biomass-derived C1-C6 mixed alcohols to olefins over three acidic catalysts (HZSM-5, SAPO-34, gamma-Al2O3). The composition and proportion of mixed alcohols have significant effects on the catalytic performance and product distribution. Removing methanol and C5-C6 mixed alcohols improves the olefin selectivity over SAPO-34. A proposed dehydration conversion method involves separating methanol and C5-C6 mixed alcohols for recycling and catalyzing the remaining mixed alcohols over gamma-Al2O3 (olefin selectivity 97.0%).
Article
Chemistry, Multidisciplinary
Jianyu Sun, Yuhang Tian, Jifeng Cao, Qilun Huang, Zilin Fang, Zhenzhou Ma, Xu Hou, Enxian Yuan, Tingting Cui
Summary: This study explores the effects of ethanol on n-heptane catalytic cracking over HZSM-5 zeolites. Ethanol addition promotes alkene selectivity but accelerates HZSM-5 deactivation.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Applied
Elise Farah, Ludmilla Demianenko, Klas Engvall, Efthymios Kantarelis
Summary: The conversion and deactivation characteristics of three different model oxygenates found in biomass bio-oil (acetol, furfural, and guaiacol) over ZSM-5 zeolites were evaluated. The optimal temperature for these conversions was found to be around 600°C, allowing for complete conversion and high resistance to coking. Crystal size and mesoporosity were found to enhance mass transfer and yield higher amounts of primary and intermediate products, such as olefins.
TOPICS IN CATALYSIS
(2023)
Review
Chemistry, Physical
Jacek Grams, Agnieszka M. Ruppert
Summary: Pyrolysis of lignocellulosic biomass for alternative fuel production requires catalysts to improve bio-oil quality, but catalyst deactivation and instability remain major challenges, hindering efficiency. Therefore, addressing catalyst stability is crucial for enhancing the pyrolysis process.
Article
Engineering, Chemical
Xing Zhang, Jingfeng Wu, Junhao Chen, Liang Lu, Lingjun Zhu, Shurong Wang
Summary: The preparation method and acid strength of Ga2O3/HZSM-5 were studied for catalytic cracking of bio-oil distilled fraction. The impregnation method showed the highest activity and oil phase selectivity, but excessive acidity may lead to decreased product quality.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Xiaohua Li, Jiayuan Sun, Shanshan Shao, Jinlong Yan, Yixi Cai
Summary: In this study, HZSM-5 was modified using green templates (cellulose, starch, and glucose) to introduce a mesoporous structure for the catalytic pyrolysis of biomass. The size of the template molecule played a crucial role in determining the size of the introduced mesopores. Larger polysaccharide templates (starch and cellulose) facilitated the formation of mesopores with larger pore sizes on the catalyst. Cellulose and starch templates promoted an increase in pore size, while the glucose template promoted an increase in the number of mesopores. The mesoporous structure with larger pore size enhanced the selectivity of BTX with larger carbon numbers and showed excellent catalytic performance.
Article
Energy & Fuels
Jun Zhang, Zhen Wu, Yafei Wu, Xiaoling Liu, Xun Li, Yu Zhang, Haian Xia, Fei Wang
Summary: The introduction of Zn species on the HZSM-5 catalyst can significantly improve the performance of catalytic cracking, leading to an increase in the production of aromatics, particularly monocyclic aromatics. Zn species alter the acidity of the catalyst and play a crucial role in the reaction.
Article
Engineering, Chemical
Xue-Yu Ren, Jing-Pei Cao, Yang Li, Zi-Meng He, Xiao-Yan Zhao, Tian-Long Liu, Xiao-Bo Feng, Yun-Peng Zhao, Hong-Cun Bai, Ji Zhang, Shi-Xuan Zhao
Summary: This study rigorously investigates the mechanism of light aromatics formation and coke growth during catalytic reforming of thermally derived volatiles over HZSM-5 under a H-2 atmosphere. It reveals the key mechanistic steps for the production of BTEXN products and the undesired coke. Competing adsorption between aromatics formation and catalytic coke reactions is observed.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Energy & Fuels
Jiaxing Wang, Shuping Zhang, Dan Xu, Huiyan Zhang
Summary: Developing an efficient and inexpensive catalyst for the removal of tar is crucial in biomass gasification technology. In this study, a red mud/carbonaceous catalyst was prepared through in-situ carbothermal reduction and showed improved catalytic activity and stability. The catalyst achieved a tar conversion efficiency of 88.70% at a temperature of 700 degrees C and maintained 80.15% conversion after nine cycles.
Article
Chemistry, Multidisciplinary
Congmei Lin, Jiahui Liu, Guansong He, Luoliang Chen, Zhong Huang, Feiyan Gong, Yonggang Liu, Shijun Liu
Article
Chemistry, Multidisciplinary
Congmei Lin, Jiahui Liu, Feiyan Gong, Guiyu Zeng, Zhong Huang, Liping Pan, Jianhu Zhang, Shijun Liu
Article
Chemistry, Multidisciplinary
Congmei Lin, Shijun Liu, Zhong Huang, Guansong He, Feiyan Gong, Yonggang Liu, Jiahui Liu
Article
Materials Science, Composites
Guansong He, Feiyan Gong, Jiahui Liu, Liping Pan, Jianhu Zhang, Shijun Liu
POLYMER COMPOSITES
(2018)
Article
Chemistry, Applied
Feiyan Gong, Hu Guo, Jianhu Zhang, Chunying Shen, Congmei Lin, Chengcheng Zeng, Shijun Liu
PROPELLANTS EXPLOSIVES PYROTECHNICS
(2017)
Article
Chemistry, Applied
Zhijian Yang, Feiyan Gong, Ling Ding, Yubin Li, Guangcheng Yang, Fude Nie
PROPELLANTS EXPLOSIVES PYROTECHNICS
(2017)
Article
Engineering, Manufacturing
Guansong He, Jiahui Liu, Feiyan Gong, Congmei Lin, Zhijian Yang
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2018)
Article
Chemistry, Multidisciplinary
Zhijian Yang, Feiyan Gong, Guansong He, Yubin Li, Ling Ding, Fude Nie, Fenglei Huang
CRYSTAL GROWTH & DESIGN
(2018)
Article
Materials Science, Characterization & Testing
Congmei Lin, Feiyan Gong, Zhijian Yang, Liping Pan, Shijun Liu, Jiang Li, Shaoyun Guo
Article
Physics, Atomic, Molecular & Chemical
Li-xia Yuan, Fang Ding, Jian-ming Yao, Xiang-song Chen, Wei-wei Liu, Jin-yong Wu, Fei-yan Gong, Quan-xin Li
CHINESE JOURNAL OF CHEMICAL PHYSICS
(2013)
Article
Chemistry, Applied
Congmei Lin, Jiahui Liu, Zhong Huang, Feiyan Gong, Yubin Li, Liping Pan, Jianhu Zhang, Shijun Liu
PROPELLANTS EXPLOSIVES PYROTECHNICS
(2015)
Article
Engineering, Multidisciplinary
Yu-bin Li, Li-ping Pan, Zhi-jian Yang, Fei-yan Gong, Xue Zheng, Guan-song He
DEFENCE TECHNOLOGY
(2017)
Article
Materials Science, Composites
Yubin Li, Zhijian Yang, Jianhu Zhang, Liping Pan, Ling Ding, Xin Tian, Xue Zheng, Feiyan Gong
COMPOSITES SCIENCE AND TECHNOLOGY
(2017)
Article
Engineering, Environmental
Feiyan Gong, Jianhu Zhang, Ling Ding, Zhijian Yang, Xiaobing Liu
CHEMICAL ENGINEERING JOURNAL
(2017)
Proceedings Paper
Engineering, Mechanical
Xiaobing Liu, Feiyan Gong
APPLIED MECHANICS, MATERIALS AND MANUFACTURING IV
(2014)
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)
