A5012085756- Zeolite Catalysis and Synthesis
- Catalysis and Hydrodesulfurization Studies
- Advanced Photocatalysis Techniques
- Energetic Materials and Combustion
- Rocket and propulsion systems research
- Adsorption and biosorption for pollutant removal
- Metal-Organic Frameworks: Synthesis and Applications
- Process Optimization and Integration
- Catalysis and Oxidation Reactions
- Heat transfer and supercritical fluids
- Membrane Separation and Gas Transport
- Superconducting Materials and Applications
- Petroleum Processing and Analysis
- Chemical Thermodynamics and Molecular Structure
- biodegradable polymer synthesis and properties
- Diamond and Carbon-based Materials Research
- Thermal and Kinetic Analysis
- Membrane Separation Technologies
- Advanced Sensor and Energy Harvesting Materials
- Advanced Data Processing Techniques
- Atomic and Subatomic Physics Research
- Advanced NMR Techniques and Applications
- Nanomaterials for catalytic reactions
- Covalent Organic Framework Applications
- Organometallic Complex Synthesis and Catalysis
State Key Laboratory of Chemical Engineering
2010-2023
Zhejiang University
2023
East China University of Science and Technology
2009-2021
Tianjin University
2021
Guangdong Medical College
2020
Institute of Electrical Engineering
2016
Chinese Academy of Sciences
2014-2016
Institute of Modern Physics
2014
Tsinghua University
2014
Abstract A kinetic model was proposed to describe fluid catalytic cracking of vacuum gas oil on a molecular level by the structure-oriented lumping method. The method applied construct feedstock matrix and reaction networks. All totaled, 391 kinds molecules were selected represent composition, non-linear least squares used calculate content each kind molecule. Sixty-six rules established produce networks for reactions oil. Product distribution properties can be predicted model, which are in...
Ferrocene‐based compounds are promising burning rate catalysts due to their attractive catalytic activity, flammability, and non‐toxic performance. Unfortunately, the high‐migration issue of ferrocene‐based makes it challenging store composite solid propellants for a long time. Therefore, dendrimer containing ferrocene units with anti‐migration ability was designed herein. The introduction polar groups provides large number interaction sites anti‐migration, no migration in propellant...
To enhance the combustion performance of composite solid propellants (CSPs), a series ferrocene‐based pyrazole energetic compounds were prepared and characterized systemically by spectroscopic techniques in this study. Moreover, their catalytic mechanism as burning rate catalysts (BRCs) investigated, related kinetic parameters obtained via Flynn–Wall–Ozawa (FWO) Kissinger–Akahira–Sunose (KAS) methods, respectively. Besides, anti‐migration studied simulating aging experiments propellant...
AbstractCoke formation on 5A molecular sieves from hydrocarbons during liquid adsorption and subsequent oxidation regeneration were investigated. Among linear olefin, cycloolefin, paraffin, the coke olefin was proved to be most severe, sequence > cycloolefin reason of which discussed. Influence temperature then investigated by taking as adsorbate; found increasing with almost deactivated at 533 K. The infrared spectrum analysis indicated that its composition saturated high polymer generated...
A kinetic model of straight-run gasoline catalytic cracking was developed according to the structure oriented lumping method. Seventy-six kinds molecules were selected describe feedstock, and 72 reaction rules established construct networks in this model. After rate constant termination condition network involved, product distribution, group composition, octane number could be predicted. In work laboratory test data by a fixed fluid bed unit used verify The results showed that predicted...
Alpha olefins were prepared from the steam cracking process of coal liquefaction wax and α-olefins products used for synthesis poly alpha olefins. Under optimal conditions, result shows that yields liquid gas are 43.1 19.5%, respectively. The single-pass conversion is 62.6% α-olefin yield 28.4%. Furthermore, total content in product reaches 65.9%. oligomer formed lower yield, higher freezing point, kinematic viscosity, viscosity index as compared to 1-decene monomer. oligomers have similar...
Abstract A product molecular weight distribution calculating model of residue solvent deasphalting has been built based on continuous thermodynamics and combined with simplified perturbed hard chain theory equation state (SPHCT EOS). Deasphalted oil (DAO) deoiling asphalt (DOA) as well DAO yield (w) butane have obtained the under different temperature, pressure, ratios for a specific vacuum residue. Results indicated that was feasible could be used basis to predict properties optimize...
Magnetic resonance imaging (MRI) has become one of the most powerful tools in modern medical diagnosis and interventional therapy. It can achieve very fast scanning due to synchronization time space under high field with homogeneity. High stability improve ratio signal noise resolution. an important diagnostic tool early stages cancer, evaluation efficacy treatment high-risk surgery, neuroscience, molecular imaging. On other hand, recent years, development openness magnets combine MRI...
Abstract A composition based model, constructed from the Monte Carlo method, for predicting ethylene, propylene, and butadiene yields in naphtha steam cracking process was developed. Seven structure vectors 68 reaction rules have been designed to describe molecular reactions. The method applied simulate process. kinds of model compounds, one kind their mixtures, straight-run used, respectively, as feedstock simulation at industry operating conditions verify validity proposed model. results...
Abstract The adsorption kinetics of n-hexane from liquid-phase on 5A zeolite crystals, binderless pellets, powder with binder, and pellets binder are investigated in order to develop the diffusion control mechanism. n-C5–n-C8 studied containing binder. Adsorption rate n-paraffins is controlled by micropore while it macropore For same adsorbate, apparent diffusional time constants about 6–11 times larger than those others.
Abstract The binderless 5A zeolite has higher economy when used in adsorption process to improve utilization efficiency of naphtha. Adsorption isotherms n-pentane, n-hexane, n-heptane and n-octane on pellets were determined gravimetrically analyzed the temperature ranging from 423 573 K. thermodynamic parameters extracted multisite Langmuir (MSL) model. Heats for n-paraffins show an increasing trend with carbon number. At small degree sites filling, heats increase 53.19 kJ mol−1 n-pentane...
A series of nanoporous carbons (NPC) Fe-C/N-900 and C/N-900 have been synthesized from one-step carbonization 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin-Fe (Fe-TCPP) TCPP, respectively employed as photocatalyst for the degradation organic dye methyl violet (MV) under UV irradiation. The optimized (carbonized at 900 oC 2 h) exhibited an optimal performance in MV degradation. photodegradation capacity has observed to be higher than that C/N-900. ability a function initial concentration,...
Sheet-like Cu-ZnS heterostructured composites were prepared by the combination of microwave hydrothermal and cation exchange methods, according to interfacial charge transfer theory. The fabrication heterojunctions broadened range light response ZnS. heterostructure can be tested HRTEM image. Through transmission electron microscopy, we find that size is about 800 nm. photoexcited electrons ZnS migrated redox potential CuS-Cu2S under visible-light irradiation, which facilitate effective...