Article
Chemistry, Physical
Shaoqing Wang, Yan Jiao, Zhihe Li, Zhen Wan, Yu Han, Weiming Yi
Summary: A surface encapsulation method was developed to synthesize HZSM-5 @Al-KIT-6 hierarchical zeolites in order to address the issues of poor mono-aromatic hydrocarbons (MAHs) selectivity and rapid coke deactivation during the catalytic upgrading of lignin pyrolysis vapors. By changing the TEOS/HZSM-5 mass ratio during catalyst synthesis, the acidity and accessibility of the HZSM-5 @Al-KIT-6 hierarchical zeolite can be modulated. The three-dimensional (3-D) cubic mesoporous shell can capture bulky phenolic oligomers and precrack them for further reforming, resulting in improved yield of xylenes and reduced formation of coke deposition.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Environmental Sciences
Shubhi Gupta, Rahul Lanjewar, Prasenjit Mondal
Summary: The study investigated the catalytic pyrolysis of pine needle biomass using metal loaded spent adsorbent as a catalyst. Results showed that the catalysts had significant deoxygenation potential, leading to higher quality bio-oil with increased carbon content and heating value, as well as enhanced hydrocarbons and phenolic compounds. The presence of CO and CO2 indicated deoxygenation reactions during catalytic breakdown, suggesting the potential application of the produced bio-oil as a replacement for petroleum fuel or industrial-grade chemical.
Article
Chemistry, Analytical
Yanhui Bin, Zhaosheng Yu, Meirong Li, Zigan Huang, Jinbo Zhan, Yanfen Liao, Anqing Zheng, Xiaoqian Ma
Summary: In this study, H-type multilamellar MFI nanosheets (HMMN) were used for catalytic reforming of municipal solid waste (MSW) and sawdust co-pyrolysis to produce high-value bio-oil. The results showed that HMMN exhibited high selectivity for monocyclic aromatic hydrocarbons (MAHs) and significantly reduced the content of oxygen-containing compounds (OCCs). The addition of MSW improved the pyrolysis behaviors of sawdust, promoting the formation of MAHs and reducing the relative yield of OCCs. HMMN had a catalytic effect on deoxygenation and aromatization reactions.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Agricultural Engineering
Nichaboon Chaihad, Aisikaer Anniwaer, Aghietyas Choirun Az Zahra, Yutaka Kasai, Prasert Reubroycharoen, Katsuki Kusakabe, Abuliti Abudula, Guoqing Guan
Summary: The issue of narrow micropores in traditional protonic type Zeolite Socony Mobil-5 (HZSM-5) catalysts, which restrict the diffusion of large-molecular reactants/products, was tackled by preparing hollow HZSM-5 with a mesoporous shell. The efficient catalyst of Hollow(30)-TP showed significantly higher aromatic hydrocarbon yields for cellulose and hemicellulose compared to traditional HZSM-5, and exhibited excellent reusability and regeneration due to increased accessibility to acid sites.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Nuttapan Promsampao, Nuwong Chollacoop, Adisak Pattiya
Summary: This study investigates the characteristics and activities of HZSM-5 catalyst after undergoing low-temperature hydrothermal treatment, and finds that the treatment can improve the performance of the catalyst and increase the yield of non-aqueous catalytic bio-oil. The deoxygenation ability of the treated bio-oil is still acceptable, even with increased deactivation of the catalyst under higher biomass conditions.
Article
Energy & Fuels
Zheng Cui, Feng Cheng, Jacqueline M. Jarvis, Umakanta Jena, Catherine E. Brewer
Summary: Co-hydrothermal liquefaction of wastewater algae and crude glycerol can produce more biocrude oil at lower costs, but the oil has high oxygen content and low energy content. Solvent extraction and catalyst selection can help upgrade the biocrude oil to higher quality and higher energy content.
Article
Agricultural Engineering
Shaoqing Wang, Zhihe Li, Weiming Yi, Peng Fu, Xueyuan Bai
Summary: This study demonstrates the successful use of a tailored hierarchical zeolite catalyst for the catalytic pyrolysis of corn cob lignin, resulting in the production of value-added aromatic hydrocarbons. The hierarchical zeolite allows for the regulation of aromatic hydrocarbon components, improves catalytic stability, and reduces coke formation. This research is of great importance for practical applications.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Analytical
Nichaboon Chaihad, Aisikaer Anniwaer, Surachai Karnjanakom, Yutaka Kasai, Suwadee Kongparakul, Chanatip Samart, Prasert Reubroycharoen, Abuliti Abudula, Guoqing Guan
Summary: Cu-modified HZSM-5 catalyst showed improved catalytic performance in upgrading bio-oil, with higher aromatic hydrocarbons yield attributed to suitable acidity and optimal Cu loading amount. Moreover, the catalyst exhibited excellent reusability and regeneration property.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Chemistry, Analytical
Zhibing Chang, Yang Qu, Zhiyuan Gu, Lingmei Zhou, Rong Li, Zhen Sun, Min Xu, Mo Chu
Summary: In this study, ZSM-5 zeolites with different silicon/aluminum ratios were used for the catalytic pyrolysis of Huadian oil shale to explore their potential for producing aromatic hydrocarbons. The results showed that ZSM-5 catalysis decreased the shale oil yield and increased the AHs content, with Z5-25 and Z5-38 appearing to be suitable catalysts for catalytic pyrolysis, producing high AHs contents. Additionally, a proposed reaction scheme suggested the main pathway for the formation of AHs from the catalytic pyrolysis of oil shale.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Energy & Fuels
Chengwang Zhao, Chen Hong, Jiashuo Hu, Yi Xing, Wei Ling, Bo Zhang, Yijie Wang, Lihui Feng
Summary: This paper reviews the research progress of heteroatomic compound treatment technology in bio-oil. Various techniques such as biomass washing treatments, catalytic cracking, catalytic hydrotreating, and other techniques like adsorption denitrification and adsorption dichlorination and co-pyrolysis are used to remove the heteroatomic compounds in bio-oil. The removal effects of different catalysts and methods are compared and discussed in this study.
Article
Green & Sustainable Science & Technology
Xiaojie Tian, Zihong Zeng, Zhihao Liu, Leilei Dai, Jiamin Xu, Xiuhua Yang, Linqing Yue, Yuhuan Liu, Roger Ruan, Yunpu Wang
Summary: This study investigated the catalytic properties of different materials on the pyrolysis of plastics and found that HZSM-5 is the most suitable catalyst for producing monocyclic aromatic hydrocarbons. The cracking process occurring in its pores plays a crucial role in the product distribution of plastic waste.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Nichaboon Chaihad, Yohanes Andre Situmorang, Aisikaer Anniwaer, Irwan Kurnia, Surachai Karnjanakom, Yutaka Kasai, Abuliti Abudula, Prasert Reubroycharoen, Guoqing Guan
Summary: Hierarchical HZSM-5 zeolites prepared by desilication with TPAOH-assisted NaOH exhibited enhanced catalytic performance in the upgrading of bio-oil derived from fast pyrolysis of sunflower stalk, with the best performance achieved through metal modification. Specifically, 0.25 wt% Cu loaded hierarchical HZSM-5 showed increased aromatic hydrocarbons yield with reduced coke formation.
Article
Chemistry, Analytical
Virdi Chaerusani, Aghietyas Choirun Az Zahra, Aisikaer Anniwaer, Pan Zhang, Nichaboon Chaihad, Jenny Rizkiana, Katsuki Kusakabe, Yutaka Kasai, Abuliti Abudula, Guoqing Guan
Summary: This study investigated the effects of biomass type and zeolite catalyst type on bio-oil upgrading. It found that using eelgrass as the biomass feedstock and H-ZSM-5-40 zeolite as the catalyst achieved the highest yield of aromatic hydrocarbons. Additionally, the spent catalysts can be regenerated through a simple calcination process.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Multidisciplinary
Panya Maneechakr, Surachai Karnjanakom
Summary: Utilizing waste palm kernel cake as a biomass feedstock for catalyst production leads to higher yield and quality of bio-oil, with the best performance observed in 15%Ni-loaded carbon catalysts. The 15%Ni-carbon catalyst showed better stability and reusability compared to commercial catalysts, making it an eco-friendly strategy for low-cost production of high-quality bio-oil from waste biomass pyrolysis.
Article
Engineering, Chemical
Jundong Wang, Michael Jabbour, Lokmane Abdelouahed, Soumaya Mezghich, Lionel Estel, Karine Thomas, Bechara Taouk
Summary: This study investigated the hydrodeoxygenation of acetone using different catalysts, with the results showing that the 5% Ni2P/HZSM-5 catalyst favored the formation of acetaldehyde and methyl isobutyl ketone at lower temperatures, while higher temperatures increased the proportion of aromatic hydrocarbons. Optimal conditions using this catalyst gave a selectivity of 49% for aromatics (benzene, toluene, and xylene).
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Review
Engineering, Chemical
Jing Wang, Peifen Wang, Zhijun Wu, Tao Yu, Abuliti Abudula, Ming Sun, Xiaoxun Ma, Guoqing Guan
Summary: This review mainly introduces the preparation methods, reaction mechanisms, catalyst deactivation/regeneration, and applications in VOCs removal of noble-metal-based and transition-metal-oxide-based mesoporous catalysts. It provides guidance for the design and preparation of mesoporous catalysts with superior performance and low cost.
REVIEWS IN CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Le Kim Hoang Pham, Suwadee Kongparakul, Prasert Reubroycharoen, Mingyue Ding, Guoqing Guan, Dai-Viet N Vo, Narong Chanlek, Cuong Nguyen Van, Chanatip Samart
Summary: Nickel-based catalysts are widely studied for deoxygenation reactions due to their low cost and high catalytic activity. Nitrogen-doped carbon has attracted significant interest as a catalyst support due to its impact on electronic properties. This study demonstrates the synthesis of a Ni2P catalyst on melamine-doped carbon, which exhibits high deoxygenation activity and facilitates the catalytic upgrading and pyrolysis of palm kernel shells.
TOPICS IN CATALYSIS
(2023)
Article
Engineering, Chemical
Ronghua Zhang, Jingxuan Yang, Shaoxing Han, Xiaogang Hao, Guoqing Guan
Summary: Research shows that introducing an apex cone at the dust outlet can prevent a drop in separation efficiency and reduce pressure drop in cyclones with increased height. The apex cone can weaken particle back-mixing and enhance secondary separation to protect efficiency.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Xiaowei An, Shasha Li, Ziyuan Yang, Xuli Ma, Xiaogang Hao, Abuliti Abudula, Guoqing Guan
Summary: In this study, a one-step hydrothermal reaction method was used to grow a Fluorine (F)-doped In(OH)3 electrocatalyst on a conductive carbon paper (F-In(OH)3/CP), which was then utilized for the electrochemical reduction of CO2 to formate. The F doping-induced lattice shrinkage and generation of positive valence states of indium resulted in a superior formate faradaic efficiency (FE) of 92.5% and a formate partial current density (jformate) of 5.5 mA cm-2 at -1.2 V versus reversible hydrogen electrode (RHE). FTacV study revealed that F doping reduced the overpotential required for CO2 electroreduction. DFT calculations showed that F doping enhanced the conductivity of In(OH)3 and improved the selectivity of formate by reducing the overpotential for formate formation and inhibiting the hydrogen evolution reaction (HER).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Meng Chen, Qing Su, Nutthaphak Kitiphatpiboon, Juan Zhang, Changrui Feng, Shasha Li, Qiang Zhao, Abuliti Abudula, Yufei Ma, Guoqing Guan
Summary: This study investigates the use of solid-state phase transformation to construct a Ni3S(2)/NiS heterojunction electrocatalyst, which enhances the valence state and hydrogen adsorption of nickel, leading to improved HER activity. The obtained electrocatalyst exhibits robust catalytic performance and superior durability in alkaline media.
Article
Chemistry, Physical
Tan Khanh Trinh Le, Suwadee Kongparakul, Haibo Zhang, Jinggang Zhao, Guoqing Guan, Narong Chanlek, Thi Tuoung Vi Tran, Chanatip Samart
Summary: Selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) using a Co-Cu/AC catalyst was investigated. The presence of Cu promoted dispersion of Co3O4 particles, leading to increased catalytic activity. The highest selectivity for FDCA (92%) was achieved using the 4Co-Cu/AC catalyst, and the proposed reaction mechanism involved redox reactions between Cu2+/Cu+ and Co3+/Co4+.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Meng Chen, Lihua Hu, Li Xu, Junling Wei, Ping Wu, Guoqing Guan, Tiejun Wang, Yufei Ma
Summary: Catalytic performance can be greatly enhanced by rational modulation of the surface state. In this study, the synergistic tuning of Pt and N on the surface states of MoC was performed to promote hydrogen evolution reaction (HER) performance, resulting in a positively linear correlation between the density of surface states near the Fermi level (E-F) and the HER activity. Moreover, the catalytic performance was further enhanced by fabricating a hierarchical Pt-N-MoC catalyst with a unique structure, exhibiting superb HER activity and stability.
Article
Nanoscience & Nanotechnology
Yang He, Changlin Liu, Zhengkun Xie, Pairuzha Xiaokaiti, Gang Chen, Zhongbao Feng, Yutaka Kasai, Abuliti Abudula, Guoqing Guan
Summary: In this work, a cobalt sulfide/molybdenum disulfide-based anode material with a heterostructure for sodium-ion batteries (SIBs) was fabricated by combining a one-pot hydrothermal route with a solid-state sulfidation step. Compared with pure cobalt sulfide and pure molybdenum disulfide materials, the cobalt sulfide/molybdenum disulfide-based one showed superior cycling stability and extraordinary rate performance. The material characterizations showed abundant mesopores and the kinetics analysis confirmed the decreasing of charge transfer resistance and the increasing of sodium ions diffusion coefficient with cycling.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Energy & Fuels
Longqing Gao, Xiumin Li, Chao Tang, Tianshuo Xie, Zhengkun Xie, Haimei Li, Guoqing Guan, Jie Liu, Keyong Tang
Summary: Soybean was used as a carbon and nitrogen source, and NH3 was used as an additional nitrogen source to fabricate efficient composite electrocatalysts with iron-doped cobalt nitride/phosphide nanosheets and conductive nitrogen-doped carbon material.
CARBON RESOURCES CONVERSION
(2023)
Article
Energy & Fuels
Aisikaer Anniwaer, Nichaboon Chaihad, Aghietyas Choirun Az Zahra, Irwan Kurnia, Yutaka Kasai, Suwadee Kongparakul, Chanatip Samart, Katsuki Kusakabe, Abuliti Abudula, Guoqing Guan
Summary: In this study, steam co-gasification of banana peel and brown coal was conducted to efficiently use waste fruit and low-rank coal for hydrogen-rich syngas production. The results showed that the gasification rate of brown coal was significantly enhanced after mixing with banana peel, resulting in a higher carbon conversion and hydrogen-rich gas production yield. The extent of the synergistic effect was influenced by reaction temperature, mixing ratio, and steam amount. It was found that the high potassium content in banana peel provided catalytic effects on water-gas shift reaction and tar reforming/cracking, thus enhancing the gasification of brown coal. Additionally, steam was confirmed to be an important factor in promoting the synergistic effect and hydrogen-rich gas production.
CARBON RESOURCES CONVERSION
(2023)
Article
Engineering, Chemical
Xueer Pan, Wenhao Lian, Nan Zhang, Jingxuan Yang, Zhonglin Zhang, Xiaogang Hao, Guoqing Guan
Summary: A mass transfer model based on spatial superposition assumption is proposed to reflect the effect of heterogeneous structure on downer mass transfer behavior. This model requires fewer concentration parameters compared to the multi-scale method and is in good agreement with experimental data. The presence of clusters significantly affects gas-solid mass transfer effectiveness, deteriorating the reaction rate. The simulation shows that mass transfer near the inlet region plays a dominant role, while along the flow direction, the influence of the reaction process gradually becomes stronger.
Review
Green & Sustainable Science & Technology
Xiyan Yue, Bozheng Qiao, Jiajia Wang, Zhengkun Xie, Zhao Liu, Zhengpeng Yang, Abuliti Abudula, Guoqing Guan
Summary: Layered metal chalcogenides, as promising anode materials for sodium ion batteries, suffer from low conductivity, large volume expansion, and slow electrochemical kinetics. This review introduces various strategies, including nanostructure designing and electrolyte selecting, to enhance their electrochemical performance. However, most of these strategies are too complicated to be practically applied, posing challenges for the fabrication of suitable anode materials with outstanding electrochemical performance in sodium ion batteries.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Tan Khanh Trinh Le, Hong Thuc Duyen Nguyen, Suwadee Kongparakul, Haibo Zhang, Guoqing Guan, Narong Chanlek, Tran Nguyen Minh An, Thi Tuong Vi Tran, Chanatip Samart
Summary: In this study, a carbon catalyst embedded with Co and Cu oxides on melamine sponge was developed for the oxidation of HMF. The catalyst showed good distribution and small crystal size, resulting in enhanced catalytic activity for HMF conversion and improved FDCA yield.
Article
Engineering, Chemical
Nan Zhang, Xueer Pan, Jingxuan Yang, Qian Liu, Wenhao Lian, Xiao Du, Zhonglin Zhang, Xiaogang Hao, Guoqing Guan
Summary: Fast heat transfer in the cyclone pyrolyzer enhances the production of pyrolysis gas and tar, improving the quality of tar produced. Compared to the downer pyrolyzer, the cyclone pyrolyzer achieves high solids holdup, violent turbulence, and faster heat transfer. The study reveals that gas-solids heat convection is the main contributor to the heat transfer process, while heat radiation and conduction are relatively small and negligible. The heating rate in the cyclone pyrolyzer is significantly increased compared to the downer pyrolyzer under the same operating conditions.
Article
Chemistry, Analytical
Zeying Yang, Boyong Cao, Xiaowei An, Zhongliang Yu, Wuduo Zhao, Fangcheng Su, Guoqing Guan, Yanhao Zhang, Zhengkun Xie, Baoxian Ye
Summary: A reliable electrochemical sensor based on a N-C mediated gamma-Mo2N nanocomposite modified carbon paste electrode was developed for selective and sensitive determination of 6-PPD. The sensor showed good stability and superior sensitivity, and has the potential to be applied for real-time evaluation and monitoring of environmental pollutants.
Correction
Chemistry, Applied
Jia Liu, Juntong Dong, Xiaodan Li, Teng Xu, Zhenguo Li, Jeffrey Dankwa Ampah, Mubasher Ikram, Shihai Zhang, Chao Jin, Zhenlong Geng, Tianyun Sun, Haifeng Liu
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Seba Alareeqi, Daniel Bahamon, Kyriaki Polychronopoulou, Lourdes F. Vega
Summary: This study explores the potential application of single-atom-alloy (SAA) catalysts in bio-oils hydrodeoxygenation refining using density functional theory (DFT) and microkinetic modeling. It establishes the relationships between stability, adsorptive properties, and activity structures for bio-oil derivatives, providing guidance for the synthesis of cost-effective SAA combinations.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Bin Hu, Wen -Ming Zhang, Xue-Wen Guo, Ji Liu, Xiao Yang, Qiang Lu
Summary: This study explored the pyrolysis behaviors and mechanisms of different monosaccharides, including arabinose, galactose, galacturonic acid, and glucuronic acid. The roles of structural differences in these monosaccharides were analyzed, and it was found that glucuronic acid undergoes a special C-C bond breaking reaction during pyrolysis. The findings provide a deep understanding of the pyrolysis chemistry of hemicellulose and the role of different branches.
FUEL PROCESSING TECHNOLOGY
(2024)
Review
Chemistry, Applied
Youwei Zhi, Donghai Xu, Guanyu Jiang, Wanpeng Yang, Zhilin Chen, Peigao Duan, Jie Zhang
Summary: Hydrothermal carbonization (HTC) is an effective method for the harmless disposal of municipal sludge (MS) and offers potential applications for the obtained products. Optimizing reaction conditions, coupling with other waste materials, and combining different processes can improve the performance of HTC. Furthermore, HTC contributes to energy recovery and enhances the quality of life cycle assessment.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Jia Wang, Jianchun Jiang, Dongxian Li, Xianzhi Meng, Arthur J. Ragauskas
Summary: This study presents a scalable process for converting holocellulose and cellulosic wastes into advanced oxygen-containing biofuels with high furan, cyclic ketone, and ethanol content. By combining hydropyrolysis and vapor-phase hydrodeoxygenation using Pd/Al2O3 as a catalyst, the researchers achieved high yields and conversions. The integrated process holds great promise for biomass waste conversion into advanced biofuels.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Florian Held, Jannis Reusch, Steffen Salenbauch, Christian Hasse
Summary: The accurate prediction and assessment of soot emissions in internal combustion engines are crucial for the development of sustainable powertrains. This study presents a detailed quadrature-based method of moments (QMOM) soot model coupled with a state-of-the-art flow solver for the simulation of gasoline engines. The model accurately describes the entire cause-and-effect chain of soot formation, growth and oxidation. Experimental validation and engine cycle simulations are used to identify the root cause of observed soot formation hotspots.
FUEL PROCESSING TECHNOLOGY
(2024)
