Article
Engineering, Environmental
Xiang Li, Xueqian Wang, Li Yuan, Langlang Wang, Yixing Ma, You Wu, Yibing Xie, Rui Cao, Yiran Xiong, Ping Ning
Summary: A Cu/Zr co-doped K@TiO2 bifunctional catalyst was synthesized for simultaneous removal of COS and H2S. The catalyst exhibited high capacity for COS and H2S, reaching 340.5 mg/g at a low temperature, surpassing other reported bifunctional catalysts. The microcrystal structure formed by Cu/Zr codoping increased the specific surface area of the catalyst and promoted the adsorption of COS/H2S. Zr doping increased the content of moderate basic sites and significantly improved the hydrolysis efficiency of COS, while Cu doping induced lattice distortion of TiO2 and promoted H2S oxidation by releasing lattice oxygen.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Song Ding, Wei Gu
Summary: In this study, density functional theory calculations were used to investigate the potential usage of B24N24 fullerene in detecting COS, H2S, CS2, and SO2 gases. The results suggest that B24N24 fullerene can serve as an electronic sensor for recognizing SO2 and CS2, with the ability to selectively operate between the two gases by varying electrical conductivity. Additionally, B24N24 fullerene exhibits a short recovery time for desorbing CS2 and SO2 gases, making it suitable for working in a wet environment.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Aide Wang, Jinde Cui, Linhan Zhang, Lili Liang, Yuncan Cao, Qingrun Liu
Summary: This study investigates the potential uses of Al24P24 fullerene for detecting CS2, H2S, SO2, and COS using density functional theory (DFT). The stability order of these gases is SO2 > H2S > COS > CS2, and there is a correlation between the moment of electric dipole and molecules' adsorption energy. Al24P24 fullerene is considered an electronic sensor for detecting SO2 and CS2, but not for COS and H2S. At room temperature, the Al24P24 fullerene has a quick recovery time in CS2 and SO2 desorption from the surface, indicating its ability to function in moist media.
JOURNAL OF MOLECULAR MODELING
(2023)
Article
Nanoscience & Nanotechnology
Mustafa M. Kadhim, Taleeb Zedan Taban, Mohanad Hatem Shadhar, Hadeer Jasem, Safa K. Hachim, Ahmed Mahdi Rheima, Andeno Masileno
Summary: Density functional theory was used to investigate the potential application of the B-36 borophene as a sensor for H2S, CS2, COS, and SO2 gases. It was found that the B-36 borophene has stable interactions with these gases, and the energy of absorption and the electric dipole moment can be used to identify them.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Energy & Fuels
Yan Guo, Bin Xiang, Bai Zhao, Wei Wang, Yuqiao Xiang, Junjie Liao, Liping Chang, Jinghon Ma, Weiren Bao
Summary: With the promulgation of new regulations, the desulfurization of blast furnace gas (BFG) using zeolite-based sorbents has become significant in the clean production of iron making industry. This research focused on preparing a series of sorbents by ion-exchanging 13X zeolite with different metal elements and evaluating their desulfurization behavior. The results showed that Cu25X-Ex sorbent had the highest breakthrough sulfur capacity in dry simulated BFG and has potential applicability in the desulfurization of blast furnace gas.
Article
Engineering, Environmental
Peng Wu, Yaping Zhang, Yiliang Liu, Hongqiang Yang, Kai Shen, Goubo Li, Sheng Wang, Shipeng Ding, Shule Zhang
Summary: The addition of organic additives and K loading were found to enhance the catalytic performance and selectivity of the catalyst due to modulation of pore structure and alkalinity. The preferred catalyst exhibited improved activity and selectivity for COS hydrolysis.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Melody Yekta, Mohammad Ali Zanjanchi, Hossein Roohi, Nastaran Askari Ardehjani
Summary: The performance of pure and metal-doped GaNNSs in adsorption and sensing of CS2, H2S, and COS gases was studied. CrNGaNNS exhibited the highest adsorption capability for CS2, while FeNGaNNS showed the highest adsorption capability for COS. Based on electronic properties, FeNGaNNS was predicted to be more suitable for sensing CS2 and H2S, while CrNGaNNS was more suitable for detecting COS. This research provides important predictions for the most promising systems for sensing and capturing toxic gases.
Article
Engineering, Chemical
Aykut Argonul, Omer Orcun Er, Ufuk Kayahan, Alper Unlu, Mustafa Ziypak
Summary: The paper disseminates the experience gained from demo plant experiments regarding gasifier performance and syngas cleaning, particularly focusing on the removal of sulfur compounds. Practical recommendations for the design and operation of such demo plants are also provided. The performance of the gas cleaning demo plant was satisfactory for methanol production, with H2S and COS concentrations successfully reduced to less than one ppmv each.
CHEMICAL ENGINEERING COMMUNICATIONS
(2021)
Article
Environmental Sciences
Jianyu Xuan, Chenyang Wang, Lin Zhang, Qun Cui, Haiyan Wang
Summary: This paper investigates the effects and mechanisms of H2O and CO2 on the simultaneous removal of H2S and SO2 by TL-1 activated carbon. The results show that the presence of H2O significantly enhances the removal capacity of TL-1 for H2S and SO2 mixture, while CO2 only physically adsorbs on the surface of TL-1.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Engineering, Environmental
Susanna Nilsson, Alicia Ronda, Alberto Gomez-Barea
Summary: The use of alkaline residue from the acetylene industry as in-bed sorbent to remove H2S from syngas was investigated. The reaction rate was affected by the presence of CO2 and H2O in the gas mixture. The sulfidation rate of calcined CS was influenced by operating parameters and showed promising potential as an alternative to conventional sorbents.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Xiang Li, Xueqian Wang, Langlang Wang, Li Yuan, Yixing Ma, Yibing Xie, Yiran Xiong, Ping Ning
Summary: In this study, Cu-based coconut shell biochar was modified with different types and contents of alkali species to improve its selectivity for H2S removal. The modified biochar exhibited a prolonged S selectivity close to 100% and increased sulfur capacity. These findings provide guidance for designing and applying desulfurization catalysts with high selectivity and activity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Cuong Duong-Viet, Jean-Mario Nhut, Tri Truong-Huu, Giulia Tuci, Lam Nguyen-Dinh, Charlotte Pham, Giuliano Giambastiani, Cuong Pham-Huu
Summary: This study reports the outstanding catalytic performance of N-C/SiC composites obtained from food-grade components. The research highlights the importance of controlling the chemical and morphological properties of the N-C phase to obtain more effective and robust catalysts.
Proceedings Paper
Green & Sustainable Science & Technology
Shihong Huang, XianHao Long, Yan Cui, Ting Lei
Summary: The tail gas produced from titanium slag smelting in a closed electric arc furnace can be purified and used for preheating raw materials, saving electric energy and reducing production costs.
2020 2ND INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING, ENVIRONMENT RESOURCES AND ENERGY MATERIALS
(2021)
Article
Metallurgy & Metallurgical Engineering
K. V. Goloshchapov, O. A. Kobelev, A. E. Titlyanov, P. V. Borisov, P. S. Makarov, O. N. Chicheneva
Summary: This article discusses the main methods of improving blast-furnace air tuyeres operation, including increasing service life by applying protective coatings and changing design for enhanced water cooling, reducing heat losses through thermal insulation, and increasing fuel combustion completeness in the air passage.
Article
Environmental Sciences
Jiayu Feng, Kai Li, Ping Ning, Chi Wang, Xin Sun, Fei Wang, Peng Gao
Summary: This study introduces modified Mg-modified γ-Al2O3 sorbents for the simultaneous removal of HCl and HF in a low-temperature environment. The optimal sorbent, modified with 15 wt% Mg and calcined at 400℃, exhibits the highest adsorption capacity. The role of MgO loaded on γ-Al2O3 is investigated and it is found to significantly enhance the adsorption activity of the sorbents.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Environmental Studies
Kai Liu, Pengjun Zhao, Dan Wan, Xiaodong Hai, Zhangyuan He, Qiyang Liu, Yonghui Qu, Xue Zhang, Kaixi Li, Ling Yu
Summary: This paper examines the spatial patterns of rural migrant workers' return to work in China's three major urban agglomerations using mobile phone big data. The study reveals multidimensional spatiotemporal differentiations in the return to work patterns of rural migrant workers, which are influenced by location, city level, and human attributes.
ENVIRONMENT AND PLANNING B-URBAN ANALYTICS AND CITY SCIENCE
(2023)
Article
Environmental Sciences
Xingguang Hao, Jie Yang, Xin Sun, Ping Ning, Kai Li, Yuan Li, Yuejiao Hao, Xin Song
Summary: Based on experimental and theoretical methods, the NO selective catalytic oxidation process over a-MnO2 (110) surface was proposed. The results showed that lattice oxygen served as the active site for NO oxidation, and the second layer oxygen atoms were the most active and stable sites. NO oxidation over the a-MnO2 (110) surface primarily followed the route of O = N-O-O-N = O formation.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Engineering, Environmental
Jiayu Feng, Lijuan Jia, Fei Wang, Xin Sun, Ping Ning, Chi Wang, Yuan Li, Kai Li
Summary: In this study, a novel urea-modified copper-based material was synthesized and found to be highly efficient for H2S purification. The material exhibited superior adsorption capacity compared to other adsorbents in the literature. The excellent performance was attributed to the alkaline site, active oxygen concentration, and oxygen vacancy in the material, which effectively captured H2S. Additionally, the deactivated adsorbent was composed of high-purity CuS, indicating the potential for simultaneous H2S purification and sulfur recovery.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Hongzhi Li, Yifan Zhang, Wengang Bai, Yu Yang, Kailun Li, Wei Gao, Lei Zhang, Chun Zhang, Shuaishuai Wu, Xuwei Zhang, Yongqiang Qiao, Yujia Zhou, Jiarong Wu
Summary: The development and control strategies of supercritical CO2 (sCO2) power system have been the focus of recent research, especially in terms of wide-range and rapid load regulation for large-scale utilization and commercialization. A pilot multi-megawatts SMART (Supercritical CO2 Modular Advanced Research and Test) fossil-fired power system has been successfully built and operated in China, demonstrating efficient and flexible operation within a wide range of load variations. The control modules implemented in the system effectively regulate key parameters to ensure stable operation and achieve load ramp and reduction rates significantly higher than steam power systems.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Inorganic & Nuclear
Ningning Sun, Yapei Yun, Kaikai Li, Xin Ni, Yao Qin, Xiaofei Yang, Hongting Sheng, Manzhou Zhu
Summary: Regulation of Hybrid Materials of Ministry of Education. Bimetallic nanoclusters with synergistic effect exhibit better stability and activity than monometallic nanoclusters in catalytic applications. The influence of calcination temperature on catalytic performance of AuCu24/AC in homocoupling and heterocoupling of terminal alkynes was investigated by fabricating AuCu24/AC-X (X=0, 200, 300, 500, 800) catalysts. The results showed that the catalytic activity of AuCu24/AC-X exhibited a volcanic trend with the increase of X (heat treatment temperature) and the content of Cu2+ also changed with the increase of X. The AuCu24/AC-200 bimetallic catalyst showed the highest catalytic activity in homocoupling and heterocoupling of terminal alkynes under mild conditions.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Environmental Sciences
Xinyu Yang, Kai Li, Chi Wang, Fei Wang, Xin Sun, Yixing Ma, Yuan Li, Lei Shi, Ping Ning
Summary: Non-thermal plasma (NTP) surface modification technology is a new method for controlling the surface properties of materials. In this study, Cu/ACF adsorbent was modified with NTP to remove H 2 S and PH 3 simultaneously under low temperature and micro-oxygen conditions. The performance test results showed that NH 3 plasma modification had the best removal effect on H 2 S and PH 3 . The NH 3 plasma modification introduced amino functional groups on the surface of the adsorbent and increased the types and number of alkaline sites, thereby improving the adsorption performance. The deactivation of the adsorbent was mainly caused by the consumption of active components and the accumulation of sulfate and phosphate on the surface and inner pores.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Plant Sciences
Ranran Wang, Jiaojiao Bai, Guofu Yan, Zejun Xiao, Kexin Chen, Kaikai Li, Jie Tang, Dongping Lu
Summary: This study found that enzymatic hydrolysate of fucoidan (FEH), derived from Sargassum hemiphyllum, can trigger various immune responses in plants, including ROS production, MAPK activation, gene expression reprogramming, callose deposition, stomatal closure, and plant resistance to Pseudomonas syringae pv. tomato (Pst) DC3000. Therefore, FEH has the potential to be used as a non-microbial elicitor to protect plants from pathogen infection in agricultural practices.
JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Mechanics
Kaikai Li, Yingxi Xie, Min Yu, Jiao Gao, Biao Tang, Longsheng Lu
Summary: The evolution of plasma droplets on the surface of electrosurgical scalpels under different heating temperatures was studied. The results showed that electrolysis dominated the evolution at lower heating temperatures, while coagulation suppressed electrolysis at higher heating temperatures. The laser-patterned surface exhibited excellent anti-adhesive properties compared to the original surface.
Article
Chemistry, Applied
Zihang Cheng, Nannan Li, Zhining Chen, Kaikai Li, Dongling Qiao, Siming Zhao, Binjia Zhang
Summary: A high-fat diet is a risk factor for many chronic diseases, and ingesting retrograded starch can help manage hyperlipidemia symptoms by reducing triglyceride and LDL cholesterol levels. The intervention of retrograded starch was found to increase the relative abundance of Bacteroides, which produce propionic acid and had a positive correlation with butyric acid that has anti-inflammatory functions. Thus, retrograded starch intervention may regulate the body's health by altering intestinal bacteria.
Review
Biochemistry & Molecular Biology
Ruifeng Wang, Xin Shi, Kaikai Li, Alex Bunker, Chunmei Li
Summary: One distinguishing feature of the persimmon is its high proanthocyanidins content, known as persimmon tannin (PT), which has many health benefits. This review aims to summarize the literature on the relationship between PT structure and activity, as well as the potential mechanisms underlying its health benefits. The unique structure of PT and its conversion into oligomeric proanthocyanidins, along with its effects on lipogenic and inflammatory signaling pathways, fatty acid oxidation, gut microbiota, and absorption properties, contribute to its multiple health benefits.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Mechanical
Kaikai Li, Longsheng Lu, Yingxi Xie, Min Yu, Guoxiang Jiang, Jinwei Kou, Jiao Gao
Summary: In order to improve the cutting performance of electrosurgical units, an oil-infused surface (OIS) was fabricated and applied to the work terminal. The OIS showed excellent antifouling and thermal barrier properties, enabling autonomous sliding behavior of plasma droplets and reducing tissue adhesive and thermal damage during cutting.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Longsheng Lu, Guoxiang Jiang, Kaikai Li, Yingxi Xie, Jiao Gao
Summary: Learning from nature, particularly from the purple orchid leaf, is a promising approach to design superhydrophobic surfaces. By analyzing the wettability difference of the leaf as it grows and its relation to surface morphology, it is found that the presence of well-developed micro-scale basic unit bumps with a dense nano-scale waxy layer contributes to the best hydrophobicity of the mature leaf. The study also demonstrates that the nano-waxy layer is more effective in enhancing surface wettability than the micro-bumps.
JOURNAL OF BIONIC ENGINEERING
(2023)
Article
Chemistry, Physical
Kaikai Li, Yingxi Xie, Biao Tang, Huanwen Ding, Xiaokang Mei, Min Yu, Chunbao Li, Longsheng Lu
Summary: By constructing surface microstructures and improving their hydrophobicity, severe adhesion of biological fluids on surgical electrodes can be effectively reduced. Inspired by purple orchid leaves with self-cleaning properties, the dynamic behavior of water and biological droplets on superhydrophobic microstructured surfaces (SMSs) heated over 100°C was studied. The SMSs with Cassie-Baxter state showed a pseudo-Leidenfrost effect for water droplets, and the dynamic evolution mechanism of plasma droplets on heated surfaces was proposed. The findings contribute to understanding the anti-adhesion mechanism of surgical electrodes at the microscopic level.
SURFACES AND INTERFACES
(2023)
Review
Metallurgy & Metallurgical Engineering
Wei Liu, Chen Wanqi, Ma Menghan, Li Kailun
Summary: Tungsten is a promising material for plasma facing in nuclear fusion reactors due to its advantageous properties. However, exposure to plasma can lead to micro/nanoscale damage on its surface, impacting its thermal and mechanical properties. This paper provides an overview of the research on the damage behavior of tungsten exposed to plasma, including the mechanisms of surface blistering and the effects of irradiation defects. The findings can contribute to optimizing the microstructure of tungsten materials and improving their performance and lifespan.
ACTA METALLURGICA SINICA
(2023)
