A5091281362- Superconducting Materials and Applications
- Spacecraft and Cryogenic Technologies
- Lignin and Wood Chemistry
- Advanced Thermodynamic Systems and Engines
- Catalysis for Biomass Conversion
- Hydraulic and Pneumatic Systems
- Ionic liquids properties and applications
- Tribology and Lubrication Engineering
- Advanced Cellulose Research Studies
- Catalysis and Hydrodesulfurization Studies
- Gear and Bearing Dynamics Analysis
- Thermochemical Biomass Conversion Processes
- Particle accelerators and beam dynamics
- Biochemical and biochemical processes
- Refrigeration and Air Conditioning Technologies
- Acoustic Wave Phenomena Research
- Oxidative Organic Chemistry Reactions
- Aerosol Filtration and Electrostatic Precipitation
- Magnetic confinement fusion research
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Nanocomposite Films for Food Packaging
- Lubricants and Their Additives
- Insect Utilization and Effects
- Catalysts for Methane Reforming
- Vibration Control and Rheological Fluids
Chinese Academy of Sciences
2012-2025
Technical Institute of Physics and Chemistry
2012-2025
Ministry of Agriculture and Rural Affairs
2022-2024
Henan Agricultural University
2022-2024
Guangzhou Institute of Energy Conversion
2020-2024
Institute of Process Engineering
2018-2022
University of Chinese Academy of Sciences
2017-2020
Green Chemistry
2019
State Key Laboratory of Multiphase Complex Systems
2019
Thomas Jefferson National Accelerator Facility
2015-2017
Fischer–Tropsch to olefins (FTO) reaction is an important non-petrochemical route produce light olefins. Iron the most widely used and easily obtainable metal catalyst with great potential in FTO. Combine micro relatively macro perspectives, this review briefly summarizes recent research progress related synthesis of via Fe-based FTO catalysts by focusing on addition various supports promoters, while elucidating effects novel configurations preparation methods catalytic performance. Finally,...
Selective catalytic hydrotreatment of lignin-derived phenols and dimeric ethers into alkanes is crucial for utilization lignin its fragments.
The degradation of lignin into aromatic products is very important, but harsh conditions and metal-based catalysts are commonly needed to cleave the inert bonds. Herein, an efficient self-initiated radical photochemical for lignin-derived aryl ethers through ionic liquids (ILs) induction demonstrated. C-C/C-O bonds can be cleaved efficiently free-radical-mediated reaction in binary-ILs system 1-propenyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl] imide [PMim][NTf2 ] Brønsted acid...
Abstract Based on the thermodynamic modified Zwart cavitation model a two-dimensional theoretical flow of labyrinth seal between piston and cylinder in liquid hydrogen pump is established verified. The influencing pressure distribution along clearance analyzed, which would reduce leakage rate seal. input degree subcooling discussed. larger inlet can diminish sealing effect liquid-phase flows. Furthermore, rates under seals with 20-60μm gap are compared, respectively. When no less than 30 μm,...
Reciprocating liquid hydrogen pumps are essential equipment for refueling stations with stored. The valves play a crucial role in facilitating unidirectional flow and the pressurization of within pump. This paper establishes comprehensive numerical model to simulate whole working cycle reciprocating influence valve parameters pump operating conditions on motion characteristics valves, including lift, closing lag angle, impact velocity, is investigated. results indicate that maximum lift...
Four renewable HBS were chosen as co-solvents to promote the selective removal of lignin by increasing total number hydrogen bonds.
Abstract Exploring more efficient solvent systems is important for biomass fractionation that can significantly boost the efficiency of catalytic conversion. Ionic liquids (ILs) and deep eutectic solvents (DESs) as novel hydrogen bond based have attracted attention. Research shows between main factor their excellent performance in fractionation. The cation or anion ILs form strong bonding with components during pretreatment processes, which weakens interactions components, further promotes...
In order to obtain the regularities of physicochemical properties hydroxy protic ionic liquids (PILs) and broaden their potential application, a series 2-hydroxyethylammonium sulfonate-based PILs were synthesized through proton transfer reaction characterized by NMR FT-IR elemental analysis. Their phase behavior (Tm) initial decomposition point (Td) differential scanning calorimetry (DSC) thermogravimetric analysis (TGA), respectively. Meanwhile, density (ρ), viscosity (η) electrical...
The gentle and simple preparation of chitin/metal composites from shrimp shells is meaningful due to their various applications other environmentally unfriendly traditional approaches. Here, we propose a two-step method prepare chitin/Zn composite using phosphate ionic liquid (IL) Zn(OAc)2•2H2O aqueous solution (aq.). ILs aq. contributed deproteinization decalcification/Zn-loading, respectively. effect anion/cations the temperature on protein removal greater than IL/shrimp mass ratio time....
Hydrodeoxygenation (HDO) of lignin-derived phenols and dimeric ethers to biofuels has great significance for advanced utilization renewable lignocelluloses the future biobased economy. Herein, we find that deoxygenation process during model compound HDO could efficiently be catalyzed by low-cost protic ionic liquids under mild conditions. 2-Hydroxy-N-(2-hydroxyethyl)-N-methylethanaminium trifluoromethanesulfonate ([BHEM]CF3SO3) shows highest catalytic activity reaction with Rh/C as...
This paper presents the effects of surface waviness on nonlinear dynamic performance a gas bearing‐rotor system. The coupled vibration with elastomer is taken into consideration to fit actual engineering application. directions, amplitudes, and numbers waves are investigated. results show that existence in circumferential direction can improve stability system obviously. But axial damage insensitive number waviness. increase amplitude
The MSU-FRIB cryogenic distribution system supports the 2 K primary, 4 and 35 - 55 shield operation of more than 70 loads in accelerator experimental areas. It is based on JLab SNS experience with bayonet-type disconnects between for phased commissioning maintenance. linac transfer line, which features three separate line segments additional independence during at K, connects folded arrangement 49 cryomodules superconducting dipole magnets a fourth separator area cryo loads. pressure reliefs...
The heat leakage of cryogenic transfer lines directly influences the performance large-scale helium refrigerator. In this paper, a thermal model line considering numerical simulation support coupled with MLI was established. To validate model, test platform merits disassembly outer pipe and changeable easily multi-layer insulation has been built. experimental results through overall length lines, were obtained. leakages insulation, are 1.02 W/m, 0.44 W 1.46 W/m from data, respectively....
A full Localization 250W@4.5K helium cryogenic refrigerator, composed of a screw compressor and its oil-removal subsystem, six plate-fin heat exchangers, two high speed turbine expanders, eight pneumatic valves vessel with load, was developed at TIPC. The low pressure can be maintained stable by adjusting the PI parameters valves. Commissioning localization refrigerator system is discussed. 300~4.5K cool-down processes exchangers are present. optimized cooling capacity this up to 317W liquid...
Abstract Research shows that there is an asynchronous evolution process between the internal transport barriers formed in three channels (ion temperature, electron temperature and density). Under condition of low toroidal magnetic field (B_t ~ 1.6 T), density ITB easiest to implement by fueling effect first NBI with least heating power. However, n_e-ITB appear be independent on The ion can without reaching threshold power under strong E×B shear flow while maintaining ITBs simultaneously...