Article
Engineering, Environmental
Zizhao Chen, Dirui Wu, Liang Chen, Mengxin Ji, Jun Zhang, Yuying Du, Zhengshun Wu
Summary: The addition of wood powder advanced the pyrolysis process of PVC and inhibited the generation of harmful substances. CO2 improves the pyrolysis efficiency of waste and reduces the emission of hazardous substances.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Agricultural Engineering
Parmila Devi, Ajay K. Dalai
Summary: The occurrence, distribution, and toxicity of polycyclic aromatic hydrocarbons (PAHs) were investigated in pyrolysis streams (biochar, biocrude, and biogas) of three agricultural residues at pyrolysis temperatures of 400-800 degrees C. The formation of PAHs increased in a narrow temperature range (500-600 degrees C) due to temperature-induced reactions. Low molecular weight PAHs dominated in all product streams, while high molecular weight PAHs were found in very low concentrations. Leaching studies revealed that biochars produced at lower temperatures were more prone to leaching, while high temperature pyrolyzed biochar prevented the leaching of PAHs due to the presence of a hydrophobic carbonized matrix. The low leaching potential, low toxic equivalency, and permissible total PAHs values in biochar derived from all three feedstocks ensure ecological safety and warrant broader application.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Analytical
David O. Usino, Paivi Ylitervo, Adrian Moreno, Mika Henrikki Sipponen, Tobias Richards
Summary: Fast pyrolysis is an efficient method for producing fuels and chemicals from biomass, but the study found that mixing cellulose with hemicellulose or lignin significantly reduces saccharide production, and inhibits the formation of phenolic compounds from lignin in the presence of cellulose. Interestingly, there were no differences in product yields between the xylan-lignin blend and the individual components.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Energy & Fuels
Jia-Hao Li, Xian-Yong Wei, Hai-Feng Zhao, Wei-Wei Yan, Dao-Guang Teng, Zhi-Hao Ma, Hua-Shuai Gao, Zhi-Min Zong
Summary: An extraction-column chromatography system was designed to enrich and purify condensed arenes (CAs) from high-temperature coal tar (HTCT). The study successfully enriched CAs with high purities and characterized them using gas chromatography/mass spectrometry and nuclear magnetic resonance spectrometry. The research revealed the crucial role of van der Waals forces and X-H⋯π bonds in the extraction process.
Article
Multidisciplinary Sciences
Lele Jiang, Yueqiang Pan, Shaoting Zhu, Jingmin Qiu, Yu Shang, Juntian Xu, Futian Li, Hongbin Wang
Summary: The effects of phenanthrene on two cosmopolitan phytoplankton species, Chlorella vulgaris and Skeletonema costatum, were negative, especially at high concentrations. However, the tolerance levels of the two species to phenanthrene varied, with Skeletonema costatum even showing stimulation at low concentrations.
SCIENTIFIC REPORTS
(2022)
Review
Environmental Sciences
Xianxian Chen, Xinying Cheng, Han Meng, Kumar Krishna Selvaraj, Huiming Li, Huan He, Wenchao Du, Shaogui Yang, Shiyin Li, Limin Zhang
Summary: Bioaccessibility/bioavailability of PAHs is an important criterion in risk assessment, with research development divided into stages focusing on different aspects such as distribution coefficient and degradation methods. The current research trend includes establishing analytical methods for PAH derivatives and optimizing in vitro digestion methods.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Guangming Xu, Shuying Geng, Wei Cao, Rui Zuo, Yanguo Teng, Aizhong Ding, Fuqiang Fan, Junfeng Dou
Summary: Contamination of soil by polycyclic aromatic compounds (PACs) as a result of oil spills is a serious global issue. This study examined the vertical variation of polycyclic aromatic hydrocarbons (PAHs), derivatives of PAHs (dPAHs), and bacterial community structure in deep soil with long-term oil spillage contamination. Results showed that the content of total PACs decreased with depth, with PAHs being the most abundant PACs. Bacterial community structure varied with depth, with higher diversity in shallow soil. The presence of PACs favored the presence of Pseudomonas in the bacterial community.
Article
Environmental Sciences
Manthar Ali Mallah, Li Changxing, Mukhtiar Ali Mallah, Muhammad Naveed, Yang Liu, Sobia Noreen, He Xi, Wei Wang, Feifei Feng, Qiao Zhang
Summary: This study aimed to investigate the association between urinary PAHs and cardiovascular diseases. The results showed a positive correlation between urinary PAHs and the prevalence of coronary heart disease, angina, heart attack, and stroke.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Smita Kumari, Krishna Gautam, Monika Seth, Sadasivam Anbumani, Natesan Manickam
Summary: The study found that the combination of Eisenia fetida and rhamnolipid JBR-425 with a bacterial consortium resulted in increased degradation levels of polycyclic aromatic hydrocarbons (PAH) from oil-contaminated soil. The bacterial consortium degraded 30-89% of selected PAH after 45 days, with chrysene showing the highest degradation (89%) and benzo(a)pyrene the lowest (30%). The earthworm biomass decreased and mortality rates increased with increasing crude oil concentrations, but a 100% survival rate was observed at 1% crude oil exposure, indicating the potential for bioremediation. The combination of E. fetida with the bacterial consortium showed better degradation of PAH, while rhamnolipid JBR-425 coupled with the consortium resulted in significant degradation as well. Overall, the application of the bacterial consortium in conjunction with E. fetida has great potential for the restoration of contaminated soil and ecosystem sustainability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Studies
Evgeny Lodygin, Evgeny Abakumov, Timur Nizamutdinov
Summary: The study examines the levels and sources of polycyclic aromatic hydrocarbons (PAHs) in Antarctic soils, revealing that the contamination of pristine Antarctic soils is relatively low while transported former agrosoils show extremely high levels of PAHs. The data could potentially be used as background levels for setting threshold concentrations in the internationally managed region of Antarctica.
Article
Energy & Fuels
Sureekan Kingputtapong, Narong Chanlek, Yingyot Poo-arporn, Napida Hinchiranan
Summary: This research aims to improve the quality of waste tire pyrolysis oil (WTPO) by hydrogenation to remove toxic polycyclic aromatic hydrocarbons (PAHs). The study consists of two steps, screening suitable catalysts through the hydrogenation of naphthalene and applying the chosen catalysts for the hydrogenation of WTPO. The selection of catalysts and the chemical structure of PAHs have an impact on hydrogenation efficiency and desulfurization ability.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Environmental
Paulina Godlewska, Patryk Oleszczuk
Summary: The study found that biochar derived from a mixture of SL and biomass (SLW) had a better effect on the persistence and bioavailability of PAHs in soil compared to biochar derived solely from sewage sludge (SL).
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
David E. Couch, Ahren W. Jasper, Goutham Kukkadapu, Myrsini M. San Marchi, Angie J. Zhang, Craig A. Taatjes, Nils Hansen
Summary: The study investigates the reaction between phenyl and cyclopentadienyl and the characteristics of their reaction products. It is found that stable radicals can be formed under certain conditions, and multiple possible reaction pathways are revealed through computational calculations.
COMBUSTION AND FLAME
(2023)
Article
Green & Sustainable Science & Technology
Abdulmajid Abdullahi Shagali, Song Hu, Hanjian Li, Limo He, Hengda Han, Huanying Chi, Haoran Qing, Jun Xu, Long Jiang, Yi Wang, Sheng Su, Jun Xiang
Summary: Co-pyrolysis of lignocellulosic biomass (LCB) with plastic has been studied and evaluated using a fast heating concentrating photothermal TGA system. The kinetic behavior, synergistic interactions, and kinetic parameters of the LCB components (cellulose, hemicellulose, and lignin) and two plastics (PET and PVC) were analyzed. The results showed that cellulose exhibited the maximum decrease in mass loss rate with increasing heating rates.
Article
Environmental Sciences
Alicia Martinez-Varela, Gemma Casas, Naiara Berrojalbiz, Daniel Lundin, Benjamin Pina, Jordi Dachs, Maria Vila-Costa
Summary: This study compared the differences in PAH degradation between coastal Mediterranean and Antarctic waters and found that microbial degradation of PAHs is much more efficient in the Mediterranean than in the Antarctic. Metatranscriptomic analysis showed significant enrichment of PAH degradation genes in the Mediterranean microbiome, while minimal responses were observed in the Antarctic. These findings suggest that factors such as geographic region, microbial community composition, and pre-exposure history play important roles in predicting PAH biodegradation in seawater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Osarieme Uyi Osazuwa, Sumaiya Zainal Abidin, Nurul Asmawati Roslan, Xiaolei Fan, Herma Dina Setiabudi, Dai-Viet N. Vo, Jude A. Onwudili
Summary: This study investigates the effects of different catalyst preparation methods on the performance of methane dry reforming reaction. It is found that the catalyst synthesized by Pechini sol-gel method shows higher carbon gasification rate and better stability compared to catalysts from other synthesis methods.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Engineering, Electrical & Electronic
Qiao Zheng, Peng-Sen Chen, Jin-Gang Huang, Shun-Li Du, Hui Zhou, Hui Deng, Cai-Xia Zhang, Jiong-Hua Wu, Shu-Ying Cheng
Summary: The organic solar cells achieve a higher power conversion efficiency by introducing a slight amount of IEICO-4 F molecule into the PTB7-Th:PC71BM blend. The doping amount of IEICO-4 F is 0-10 wt%. The champion PCE of the device with 7 wt% IEICO-4 F doped can reach 9.8%, which is 15% higher than that of the device without doping. The doping of IEICO-4 F significantly improves the short-circuit current density of the device by effectively suppressing carrier recombination and enhancing charge extraction capability.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Ocean
Ning Fan, Kangping Liao, Qian Wang, Zheng Fang, Hui Zhou
Summary: The study investigates the wake interactions between a yaw wind turbine and a downstream wind turbine using a numerical technique. The improvement in actuator line method includes the Gaussian anisotropic body force projection method and the integral velocity sampling method. The results provide predictions about the power coefficients and wake characteristics of two tandem-arranged wind turbines at various yaw angles.
JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME
(2023)
Article
Construction & Building Technology
Hongtao Xu, Hao Wang, Qiannan Huo, Yue Qin, Hui Zhou
Summary: This paper provides a list of representative standards for ETICS in Chinese, European, and ISO technical assessment documents, and presents a comparative study on standardization, technology, and engineering. The standards are found to be related to project organization mode, with Chinese and ISO standards being more normative compared to European standards. Leakage and degradation issues are observed in ETICS in China, and it is suggested to learn from successful experiences in waterproofing, drainage, and other measures. China has made technical breakthroughs in wind load resistance design and quality acceptance, giving them an advantage in engineering practice. The development of diverse types of external insulation systems and learning from the European certification system are also recommended. This research serves as a reference for ETICS technology, engineering, and standardization, and facilitates international trade.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Energy & Fuels
Paul T. Williams, Yukun Li, Mohamad A. Nahil
Summary: Single plastics and mixed waste plastics were processed using pyrolysis-catalytic steam reforming with a carbonaceous char catalyst from waste tires. The gas yield was high, with total gas yields from single plastics ranging from 36.84% to 39.08%. The product gas was mainly composed of syngas (80 vol %) and the hydrogen yield increased with the temperature of the char catalyst.
Article
Acoustics
Yujiang Wang, Haiyan Yang, Weizhi Song, Chihua Lu, Zhien Liu, Hui Zhou
Summary: This paper studies the dynamics and vibration reduction performance of the bistable nonlinear energy sink (BNES). The negative stiffness of BNES is realized by geometric nonlinearity, and the system's dynamics model is established. The slow flow equation of the system under 1:1 main resonance is analyzed using the complexification-averaging (CX-A) method, and the boundary conditions of saddle node bifurcation and Hopf bifurcation are analyzed. The slow invariant manifold (SIM) of the BNES is studied based on multiscale analysis, and the excitation threshold of strongly modulated response (SMR) is analyzed; the numerical results verify the analysis results. The influence of structural parameters on the vibration reduction performance is analyzed and optimized. The comparison between BNES and CNES shows that BNES has better vibration reduction performance in the full frequency band.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Engineering, Marine
Kaiye Hu, Hui Zhou, Lijun Mao
Summary: This paper studied the motion response and green water characteristics of tumblehome vessels under different bow configurations in regular waves using the Cartesian Grid Finite Difference Method. The results showed that the bow configuration had little effect on the motion response of the vessel, but greatly influenced the green water height and slamming pressure characteristics under high wave conditions. Compared to other bow configuration schemes, the vessel with a stem angle of 45 degrees had better comprehensive load performance when green water occurred.
Article
Engineering, Marine
Hui Zhou, Kaiye Hu, Lijun Mao, Mingliang Sun, Jiarong Cao
Summary: This paper investigates the effect of different wave elements and planing speeds on the motion response and vertical overload of amphibious aircraft using the Cartesian Grid Finite Difference Method (CGFDM). The numerical simulation results show good agreement with experimental values. The study reveals that the heave and pitch motion responses of amphibious aircraft exhibit certain regularity with changing wave conditions, and higher speeds and larger wave steepness can induce jumping motions and reduce aircraft stability.
Article
Forestry
Guangda Xia, Tianyu Yang, Yu Liu, Xiaodong Zhu, Hui Zhou, Ruiying Wu
Summary: Biomorphic TiO2 with hierarchical porous structures is synthesized using wood residues as biological templates. These biomorphic TiO2 showed improved adsorption capacity and photocatalytic performance compared to template-free TiO2 when decomposing methylene blue and phenol. The multiscale structures of the wood templates enhanced light absorption and mass transfer efficiency, leading to high degradation rates under visible light conditions. This research provides a convenient synthesis method to obtain biomorphic TiO2 and enhances the visible light response and charge transfer in the system.
WOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Civil
Jing Zhang, Suchao Xie, Hui Zhou, Tao Li, Yaxin Li
Summary: A new evolutionary scheme for the concave polygonal tube is proposed to improve the energy absorption characteristics compared to the traditional convex polygonal tube and existing concave polygonal tube. The energy absorption characteristics of different concave tubes evolved from two schemes are studied through experiments and simulations, and the results show that the concave polygonal tube evolved by the new scheme has better energy absorption characteristics. Furthermore, the deformation mode and stable size range of concave tubes are investigated, and the specific energy absorption and the number of structural sides show a trend of first increasing and then decreasing.
Article
Chemistry, Multidisciplinary
Hui Zhou, Scott R. Docherty, Nat Phongprueksathat, Zixuan Chen, Andrey V. Bukhtiyarov, Igor P. Prosvirin, Olga V. Safonova, Atsushi Urakawa, Christophe Coperet, Christoph R. Muller, Alexey Fedorov
Summary: A Cu-Zn/SiO2 catalyst was developed for the efficient and selective hydrogenation of CO2 to methanol. The optimized catalyst exhibited an intrinsic methanol formation rate of 4.3 g h(-1) g(Cu) (-1) and a selectivity to methanol of 83% at 230 degrees C and 25 bar.
Article
Chemistry, Physical
Shijie Yu, Xiaoxiao Yang, Qinghai Li, Yanguo Zhang, Hui Zhou
Summary: Hydrothermal carbonization (HTC) is a promising technology for producing carbon materials from lignocellulosic biomass with negative carbon emissions. However, high temperature and energy consumption have hindered its development. This study developed a decoupled temperature and pressure hydrothermal (DTPH) reaction system to lower the temperature of the HTC reaction. The properties of hydrochars were analyzed to propose the reaction mechanism.
GREEN ENERGY & ENVIRONMENT
(2023)
Review
Chemistry, Physical
Carine T. Alves, Jude A. Onwudili, Payam Ghorbannezhad, Shogo Kumagai
Summary: Conventional biomass gasification involves complex chemical reactions to produce gas, with gasifying agents and gasification temperature as key factors. Air as the gasifying agent produces highly diluted producer gas, while nitrogen-free gasifying agents produce syngas suitable for various downstream uses. Kinetic and thermodynamic studies have contributed to understanding biomass gasification. Strategies to reduce tar formation and the historical perspective and current trends of biomass gasification are also discussed.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Energy & Fuels
Shiyu Zhang, Mengna Wu, Zheng Qian, Qinghai Li, Yanguo Zhang, Hui Zhou
Summary: The advancement of biomass utilization technology is crucial for addressing global climate change and the depletion of fossil resources. This study investigates the production of CO-rich syngas from the CO2 gasification-reforming of biomass components. The results show that using nanorod CeO2 supported Ni catalysts can enhance volatile CO2 reforming reactions and significantly increase gas yield. The structure and stability of the catalysts were characterized for further understanding.
Review
Green & Sustainable Science & Technology
Yongqing Xu, Mengna Wu, Xiaoxiao Yang, Shuzhuang Sun, Qinghai Li, Yanguo Zhang, Chunfei Wu, Robert E. Przekop, Eliza Romanczuk-Ruszuk, Daria Paku, Hui Zhou
Summary: This review provides a comprehensive overview of the recent advances and prospects in sorption-enhanced steam reforming of bio-ethanol (SESRE) and bio-glycerol (SESRG). These processes offer promising solutions for efficient hydrogen production and carbon dioxide capture. The importance of catalysts, particularly dual-functional materials (DFMs), is highlighted. However, there is currently a lack of criteria for engineering DFMs in SESRE and SESRG processes.
CARBON CAPTURE SCIENCE & TECHNOLOGY
(2023)
