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
Engineering, Environmental
Qingqi Zheng, Dequan Zhang, Peng Fu, Aixia Wang, Yongmei Sun, Zhiyu Li, Qingwen Fan
Summary: Understanding the role of volatile evolving, char structural evolution, and pyrolysis reaction pathway is crucial for effective utilization of lignin through a pyrolysis-based biorefinery approach. Fast pyrolysis of lignin at different temperatures revealed the release characteristics of volatile compounds and their connection with char structure evolution. The results showed that the release of simple substituted aryl compounds was promoted by the cleavage of beta-O-4 and alpha-O-4. The study also found that high temperatures contributed to the formation of aromatic monomers, and the aromaticity can be evaluated based on the atom ratio of H/C and the degree of ring condensation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Bin Li, Huimin Huang, Xing Xie, Juntao Wei, Shu Zhang, Xun Hu, Shihong Zhang, Dongjing Liu
Summary: The effects of AAEMs removal and KOH addition in char on formation and distribution of wheat straw pyrolysis products were studied. The removal of AAEMs increased the interaction between volatiles and char, while the addition of KOH significantly reduced bio-oil yield and increased non-condensable gas yield. It also promoted specific reactions and enhanced the cracking/decomposition of certain compounds.
Article
Energy & Fuels
Yao Wang, Bin Li, Anjiang Gao, Kuan Ding, Xie Xing, Juntao Wei, Yong Huang, Jason Chun -Ho Lam, K. A. Subramanian, Shu Zhang
Summary: The aim of this study was to investigate the impact of acid-washing pretreatment on the pyrolysis of poplar wood under different volatile-char interactions. The experiment was performed using a self-designed fixed-bed pyrolysis reactor. It was observed that acid-washing pretreatment altered the surface morphology of the poplar wood, increasing cellulose crystallinity and reducing inorganic ash components. These components, mainly Alkali and Alkaline Earth Metal species, acted as catalysts for sugar ring fragmentation and charring reactions during both primary pyrolysis and secondary volatile-char interactions. The removal of these components resulted in an increase in bio-oil yield and a decrease in biochar and non-condensable gas yields, while also promoting the generation of pore structures in the biochar and enhancing anhydrosugars content in the bio-oil.
Article
Energy & Fuels
Shuo Zhang, Yunfei Wu, Yiming Wang, Mei Zhong, Guijin Wang, Yanpeng Ban, Shun Zhao, Haoquan Hu, Lijun Jin
Summary: This study applied a CO2-enhanced water leaching method to remove alkali/alkaline earth metallic species from biochar and used the demineralized biochar as a catalyst for upgrading pyrolysis biooil. The results showed that the pore structure of the catalyst played a dominant role in increasing phenols contents, while alkali/alkaline earth metallic species enhanced the polymerization of aromatic hydrocarbons and the decarbonylation of oxygenated compounds.
Article
Chemistry, Applied
Zhe Xiong, Junhao Guo, Hengda Han, Jun Xu, Long Jiang, Sheng Su, Song Hu, Yi Wang, Jun Xiang
Summary: The alkali/alkaline earth metal species (AAEMs) in biomass significantly affect the formation of heavy components in bio-oil during pyrolysis, promoting the breakage of active oxygen-containing functional groups. The catalytic effects of K and Ca differ, with K showing a stronger decomposition effect on large molecular weight compounds in heavy components compared to Ca.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Anjiang Gao, Yao Wang, Guiying Lin, Bin Li, Xun Hu, Yong Huang, Shu Zhang, Hong Zhang
Summary: This study proposes a novel reactor for investigating the pyrolysis of poplar wood and the corresponding products by controllable adjustment of volatile-char interactions. The results show that reducing the volatile-char interactions leads to the disappearance of oxygen content in biochar and improvement of its pore structure. The biooil yield increases while the outputs of acetic acid and phenols decrease. In addition, the average molecular weight of bio-oil decreases with the intensification of volatile-char interactions.
Article
Thermodynamics
Bin Li, Lijun Zhao, Xing Xie, Dan Lin, Huibin Xu, Shuang Wang, Zhixiang Xu, Junfeng Wang, Yong Huang, Shu Zhang, Xun Hu, Dongjing Liu
Summary: This study experimentally investigated the effect of char preparation temperature on the interactions between cellulose volatiles and acid-washed sawdust char, revealing that changes in biochar chemical structure caused by different preparation temperatures significantly impacted the final products of cellulose pyrolysis. Lower temperature chars exhibited higher reactivities, and volatile-char interactions altered the product distribution.
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
Green & Sustainable Science & Technology
Xiye Chen, Li Liu, Linyao Zhang, Yan Zhao, Chang Xing, Zixin Jiao, Chunhui Yang, Penghua Qiu
Summary: The study found that active AKEMs influence the co-pyrolysis process of coal and biomass, affecting the physicochemical properties and gasification reactivity of co-pyrolysis char. The interaction between the blends promotes the reactivity of co-pyrolysis char.
Article
Energy & Fuels
Zengtong Deng, Syed Shatir A. Syed-Hassan, Yuanjing Chen, Long Jiang, Jun Xu, Song Hu, Sheng Su, Yi Wang, Jun Xiang
Summary: In this study, it was found that adding Ni/Al2O3 to bio-oil can inhibit the formation of coke during pyrolysis, especially at high temperatures. The catalytic cracking of small molecules enhances the formation of hydrogen radicals, promoting thermal decomposition and preventing coke formation.
Article
Chemistry, Applied
Zhiguo Dong, Anthony Dufour, Richard Laine, Sebastien Leclerc, Liangyuan Jia, Yingquan Chen, Xianhua Wang, Hanping Chen, Haiping Yang
Summary: In this study, the mechanism of borate crosslinking on lignin softening and pyrolysis process was investigated. It was found that the shielding of hydroxyl groups by borate inhibits the decomposition of lignin but improves the selectivity to phenols, and more oxygenated groups remain in the char.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Agricultural Engineering
Silawan Sangthong, Worasak Phetwarotai, Muhammad Saifullah Abu Bakar, Benjamas Cheirsilp, Neeranuch Phusunti
Summary: This study comparatively analyzed the potential of palm kernel shell and its isolated lignin for the production of phenol and phenolic compounds via the pyrolysis process. The experimental results showed that the isolated lignin had a higher bio-oil yield and total fraction of phenol and phenolic compounds.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Green & Sustainable Science & Technology
Liu Yang, Mengyao Guo, Yiwen Qian, Deliang Xu, Mortaza Gholizadeh, Karnowo, Hong Zhang, Xun Hu, Shu Zhang
Summary: This study investigates the capability of glucose-derived char to absorb and solidify N-containing gas species, revealing different transformation patterns of N compounds in chars from different sources and exploring the reactions between amino groups and aldehyde groups.
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
Materials Science, Textiles
Yanlai Wang, Xiuyun Xiao, Shu Wang, Kang Li, Ying Jiang, Yifa Ma, Tonghua Zhang, Ruilong Ran
Summary: The experiment revealed that the alkali lignin extracted from palm fiber has superior UV absorption properties compared to bamboo fiber. The UV absorbing functional groups in palm fibers include phenol OH, aliphatic OH, aromatic ring, and triple bond structure, which contribute to its high UV absorbance. Furthermore, the high protein content and concentrated aromatic structures in palm fibers also contribute to its UV blocking mechanism.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Energy & Fuels
Mingyan Yang, Meng Lan, Xiaofeng Gao, Yan Dou, Xiao Zhang
Summary: The two-step pretreatment using dilute acid/alkali significantly improved the hydrolysis efficiency of corncobs, resulting in a high glucan content in the pretreated biomass. The enzymatic digestibility was greatly enhanced after the pretreatment process, leading to a higher ethanol yield during simultaneous saccharification and fermentation.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Materials Science, Textiles
Mylsamy Bhuvaneshwaran, Sampath Pavayee Subramani, Sathish Kumar Palaniappan, Samir Kumar Pal, Sethuraman Balu
Summary: The study confirmed the high cellulose content and lower amounts of lignin, hemicellulose, ash, and wax content in Coccinia Indica fibers. The fibers exhibit a multi-cellular structure and good mechanical properties, suitable for use as reinforcement in composite materials.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Materials Science, Textiles
M. Umashankaran, S. Gopalakrishnan
Summary: The suitability of Pongamia pinnata L. bark fiber (PPF) as a polymer reinforcement was identified for the first time in this article. The chemical analysis and characterization revealed its characteristics, including high cellulose content, crystallinity, and low hemicellulose content, indicating its suitability for fabricating eco-friendly bio-composites.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Chemistry, Multidisciplinary
Paulo Torres, Merce Balcells, Ramon Canela-Garayoa
Summary: The Diels-Alder reaction generates products with different stereochemical configurations, which can often be predicted by the endo rule when the dienophile has a single electron-withdrawing substituent. The use of chiral eutectic solvents has become a novel tool in asymmetric synthesis to improve reaction yields and selectivity, maintaining sustainability in organic synthesis.
Article
Chemistry, Multidisciplinary
Alberto Millan Acosta, Clara Cuesta Turull, Diana Cosovanu, Nuria Sala Marti, Ramon Canela-Garayoa
Summary: The study describes for the first time the whole-cell oxidation of HMF to DFF by Fusarium culmorum EAN 51, with the biocatalytic transformation considered more cost-effective compared to chemocatalytic methods. By optimizing the nutrient concentrations, high yields and selectivity in the transformation process were achieved, opening up new possibilities for sustainable production of DFF from renewable biobased resources.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Physics, Mathematical
Xuanjiang Liu, Fuyi Xu, Peng Fu
Summary: This article considers the Cauchy problem for the three-dimensional incompressible flows of liquid crystals in scaling invariant spaces. Three results are presented: firstly, the global well-posedness of mild solution without the supercritical nonlinearity is proven when the norms of the initial data are bounded exactly by the minimal value of the viscosity coefficients; secondly, the global existence of mild solution in time dependent spaces is proved for small initial data, including the term |& nabla;d|(2)d; finally, the analyticity of the solution is also obtained.
ADVANCES IN MATHEMATICAL PHYSICS
(2022)
Article
Chemistry, Physical
Diana Cosovanu, Alberto Millan Acosta, Pau Cabaneros Lopez, Krist Gernaey, Qian Li, Rene Lametsch, Ramon Canela-Garayoa, Jordi Eras, Gemma Villorbina
Summary: This study focused on the biotransformation of HMF into DHMF using low-cost protein hydrolysates obtained from meat industry waste residues. The hydrolysis of protein was optimized using two commercial proteases, leading to higher DHMF yield compared to using commercial peptones. The use of these hydrolysates as a nitrogen source improved sporulation of the fungus, resulting in a higher conversion yield.
Article
Chemistry, Multidisciplinary
Liang Zheng, Zhiyu Li, Peng Fu, Fazhe Sun, Mingyang Liu, Tianyang Guo, Qingwen Fan
Summary: In this study, Mo-modified pseudoboehmite supported Ni catalysts were developed for efficient hydrogen production from formic acid. The oxygen vacancies caused by Mo enhanced Ni anchoring and inhibited Ni sintering. The modified catalyst showed smaller Ni particles and higher catalytic performance compared to conventional catalysts.
Article
Chemistry, Physical
Lei Dai, Peng Fu, Jieming Chen, Fazhe Sun
Summary: By regulating the N element, the band gap width of TiO2 can be changed, and an impurity band gap can be induced below the TiO2 conduction band. The 300-N-T catalyst exhibited the best photocatalytic hydrogen production performance under visible light, which was 307.65 mmol/(g$h) and was 61.53 times higher than that of anatase. The concentration of Ti3+ defects and oxygen vacancy in TiO2 decreased with decreasing N content.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Dequan Zhang, Xinghua Zhang, Han Yin, Qingqi Zheng, Longlong Ma, Song Li, Yuchun Zhang, Peng Fu
Summary: Catalytic cracking of phenolic compounds to aromatic hydrocarbons using silica-alumina catalysts was investigated in this study. The catalysts were characterized and evaluated using guaiacol as a model compound. The optimal conditions for achieving a high yield of aromatic hydrocarbons were determined. The deactivating species in the transformation of guaiacol into aromatic hydrocarbons were also studied.
Article
Chemistry, Physical
Qingwen Fan, Peng Fu, Elliot L. Bennett, Chaoyun Song, Yuchun Zhang
Summary: The coordination of energy density and power density is achieved by using metal oxide (MnO2) in 3D porous carbon to provide pseudocapacitance. A composite material (JSPCC-MnO2) with a specific capacitance of 310.6 F/g, an energy density of 42.4 Wh/kg, and a power density of 1425 W/kg has been synthesized. The pseudo-capacitance process of JSPCC-MnO2 involves reversible charge transfer from Mn (II) to Mn (IV) to achieve high specific capacitance and energy density through multiple charge transfer dynamics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Qingwen Fan, Chaoyun Song, Yuchun Zhang, Gangxin Ren, Yongmei Sun, Peng Fu
Summary: By combining MXenes with jujube shell porous carbon, the stacking issue of MXenes can be addressed and the electromagnetic shielding capabilities of porous carbon can be enhanced. The composite material exhibits outstanding electromagnetic shielding properties and electrochemical energy storage performance, absorbing 99.9% of incident electromagnetic waves and providing abundant channels for electrolyte ion storage and transport.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hetong Li, Yuchun Zhang, Peng Fu, Ranran Wei, Zhiyu Li, Lei Dai, Andong Zhang
Summary: A type of nano NiO-Fe2O3/Al2O3 Fe-based OC was developed for glycerol CLSR, which can be easily reduced and re-oxidized. The study established optimal conditions and demonstrated improved cycle stability with the addition of Ni.
Article
Chemistry, Multidisciplinary
Lei Dai, Fazhe Sun, Peng Fu, Hetong Li
Summary: In this study, a novel g-C3N4/TiO2/CuO double-heterojunction photocatalyst was developed to improve the photocatalytic activity and gas sensing properties. The double heterostructure effectively inhibited electron-hole recombination and enhanced the migration of photogenerated electrons.
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)
