Article
Chemistry, Multidisciplinary
Lilivet Ubiera, Isabelle Polaert, Michel Delmotte, Lokmane Abdelouahed, Bechara Taouk
Summary: Microwave pyrolysis is an efficient and high-quality option for treating biomass residue, with bio-oil production significantly influenced by operating conditions and absorbed energy. High heating rates and appropriate energy absorption are crucial for achieving optimal bio-oil yields.
REACTION CHEMISTRY & ENGINEERING
(2021)
Article
Energy & Fuels
Funda Ates, Birsen Yasar
Summary: This study investigated the effects of flash and fast pyrolysis on the product yields and compositions of date palm stone. It was found that flash and fast pyrolysis can yield more bio-oil at moderate temperatures. The chars produced from these processes showed high adsorption capacities for dyes. The bio-oil products were found to contain higher levels of oxygen and can be used as fuel or for chemical production, while the solid products can be used as fuel or adsorbents.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Agricultural Engineering
Zijun Yi, Chao Li, Haisheng Lin, Shu Zhang, Yong Huang, Bin Li, Shuang Wang, Xun Hu
Summary: In this study, the pyrolysis of poplar sawdust impregnated with different bio-oil fractions was conducted. It was found that the organics in the bio-oil could react with biochar, increasing biochar production. Additionally, impregnation of bio-oil lowered the activation energy and ignition temperatures for combustion, enhanced deoxygenation, and facilitated the formation of mesopores.
BIOMASS & BIOENERGY
(2023)
Article
Green & Sustainable Science & Technology
Shasha Liu, Gang Wu, Yi Gao, Bin Li, Yu Feng, Jianbin Zhou, Xun Hu, Yong Huang, Shu Zhang, Hong Zhang
Summary: The study showed that catalytic reaction with activated char could increase the relative content of phenolic substances in bio-oil and create more active sites. At higher temperatures, the content of aromatic hydrocarbons in bio-oil increased while oxygen-containing compounds (such as ketones, acids, aldehydes) decreased.
Article
Thermodynamics
Haodong Zhu, Baojun Yi, Hongyun Hu, Qizhou Fan, Hao Wang, Hong Yao
Summary: During the solar pyrolysis of biomass, the heat transfer is restricted, leading to the exploration of co-pyrolysis reaction behaviors of biomass and char, and secondary pyrolysis reactions of biomass. The effects of char and potassium on fast pyrolysis products distribution are discussed, showing that high temperature favors volatile release and higher heating rate promotes decomposition of bio-oils into gaseous products. Char enhances secondary pyrolysis reactions while potassium increases reactivity of biomass pyrolysis.
Article
Chemistry, Multidisciplinary
Hoang Vu Ly, Quoc Khanh Tran, Byung Hee Chun, Changho Oh, Jinsoo Kim, Seung-Soo Kim
Summary: The pyrolysis of furniture processing residue (FPR) can be analyzed under nitrogen atmosphere through thermogravimetric analysis (TGA), converting into bio-oil and bio-char. The characteristics and distribution of bio-oil are affected by operating conditions, with the highest bio-oil yield occurring at 450 degrees C. The gas product includes CO, CO2, H2, and hydrocarbons, with CO2 showing the highest selectivity. Bio-char has high heating value and carbon content, suitable for use as a solid fuel.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Agricultural Engineering
A. Dimitriadis, D. Liakos, U. Pfisterer, M. Moustaka-Gouni, D. Karonis, S. Bezergianni
Summary: This study found that hydrotreated pyrolysis oil can be miscible with different petroleum streams, and in some cases can even improve fuel characteristics, potentially allowing for its integration in oil refineries.
BIOMASS & BIOENERGY
(2021)
Article
Green & Sustainable Science & Technology
Athanasios Dimitriadis, Loukia P. Chrysikou, George Meletidis, George Terzis, Milos Auersvald, David Kubicka, Stella Bezergianni
Summary: This study investigated the upgrading of pyrolysis bio-oil through mild hydrotreatment, finding that the longest catalyst life was achieved under specific operating conditions. Furthermore, several properties of the initial bio-oil were improved during the upgrading process.
Article
Energy & Fuels
Shuqi Fang, Yuqian Wang, Pan Li, Chun Chang, Xianhua Wang, Jiande Song, Shusheng Pang
Summary: A carbon-based catalyst was prepared by Ni/Co modification of acid pickling biochar from peanut shell. The modified catalyst showed abundant pore structure and oxygen-containing functional groups, providing more active sites for metal particles loading. It exhibited high catalytic activity for steam reforming of acetic acid and could be a potential catalyst for the production of H-2.
Article
Energy & Fuels
Shasha Liu, Gang Wu, Syed Shatir A. Syed-Hassan, Bin Li, Xun Hu, Jianbin Zhou, Yong Huang, Shu Zhang, Hong Zhang
Summary: This study found that char-supported Fe catalyst can completely convert typical components in bio-oil to aromatic hydrocarbons, and can be regenerated by CO2 or steam gasification. The CO2 regenerated catalyst is rich in C=O groups and alpha-Fe2O3, while the H2O regenerated one mainly contains O=C-O groups and Fe/FeO.
Review
Energy & Fuels
Anja Oasmaa, Jani Lehto, Yrjo Solantausta, Sirpa Kallio
Summary: The review summarizes VTT's development efforts in fast pyrolysis over the past 40 years, showcasing a wide range of feedstocks and products tested. Plastic wastes are currently seen as the most promising industrial opportunity in this field.
Article
Energy & Fuels
Guojun Yin, Fengzhou Zhang, Yuan Gao, Wenjing He, Qing Zhang, Shubin Yang
Summary: Adding potassium salts can increase the yield of bio-char, especially at temperatures between 400 and 600 degrees Celsius. This is mainly due to the deposition of volatiles on the potassium salts, which leads to an increase in both the yield and free radical concentration of bio-char.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Agricultural Engineering
Rahmad Mohd Taib, Nurhayati Abdullah, Nur Syairah Mohamad Aziz
Summary: This study investigated the fast pyrolysis of banana pseudo-stem (BPS) to determine the optimal conditions for maximum liquid yield, finding that a pyrolysis temperature of 500°C and a residence time of 1.02 s were ideal. Under these conditions, a total liquid yield of 39.4% was achieved, with a high heating value of approximately 5.35 MJ/kg for the BPS liquid obtained. The BPS bio-oil was found to contain common functional groups and chemical compounds related to phenols.
BIOMASS & BIOENERGY
(2021)
Article
Agricultural Engineering
S. P. Iglesias, M. R. Miyazaki, A. P. Mariano, T. T. Franco
Summary: Techno-economic analysis was conducted on the production of bio-oil from Eucalyptus grandis residues in Sao Paulo, Brazil, showing potential for economically viable centralized biorefineries. The study found that plant capacity has the most significant impact on the minimum selling price (MSP) of bio-oil, with the production able to achieve high net present value (NPV) and internal rate of return (IRR) indicators.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Engineering, Environmental
Song Qiu, Chunxiang Chen, Shouqiang Wan, Hongjian Ling, Yixue Wei, Shiyuan He, Haosen Shi, Xiankai Mo
Summary: Bio-char is a cheap and environmentally friendly material widely used as a pyrolysis catalyst. This study prepared modified catalysts using bio-char produced by co-pyrolysis of sugarcane bagasse and Chlorella vulgaris. The results showed that the modified catalysts had higher surface area and pore volume compared to bio-char. The addition of these catalysts effectively increased the weight loss rate and reduced the reaction time of co-pyrolysis. Moreover, the catalysts improved the bio-oil yield and facilitated the formation of hydrocarbons while suppressing the generation of amines/nitriles and acids/esters.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
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)