A5045946164- Granular flow and fluidized beds
- Cyclone Separators and Fluid Dynamics
- Mineral Processing and Grinding
- Iron and Steelmaking Processes
- Particle Dynamics in Fluid Flows
- Fluid Dynamics and Mixing
- Petroleum Processing and Analysis
- Thermochemical Biomass Conversion Processes
- Metallurgical Processes and Thermodynamics
- Industrial Gas Emission Control
- Aerosol Filtration and Electrostatic Precipitation
- Oil and Gas Production Techniques
- Membrane Separation and Gas Transport
- Advancements in Battery Materials
- Synthesis and Properties of Aromatic Compounds
- Semiconductor materials and devices
- Lattice Boltzmann Simulation Studies
- Heat transfer and supercritical fluids
- Catalytic Processes in Materials Science
- Axial and Atropisomeric Chirality Synthesis
- Lignin and Wood Chemistry
- Minerals Flotation and Separation Techniques
- Advanced Battery Technologies Research
- Catalysis and Hydrodesulfurization Studies
- Crystallization and Solubility Studies
China University of Petroleum, Beijing
2015-2025
Hebei University
2024
State Key Laboratory of Heavy Oil
2020-2023
Western University
2014-2016
China University of Petroleum, East China
2012-2015
Shale oil has attracted more attention, as a very important substitutable fuel resource. In the present research, classes and structures of nitrogen species in hydrotreated untreated Fushun shale (FSO) are characterized by electrospray ionization (ESI) Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Experimental results have demonstrated that most compounds FSO removed effectively during hydrotreatment. N1 N2 dominant FSO, their deduced terms double bond equivalent...
Catalyst loss is a typical fault that impacts the long-term operation of fluidized catalytic cracking (FCC) in oil refining process. The FCC disengager critical place for separating catalyst from gas. A fast and precise fault-cause judgment vital avoiding failures. In this study, novel method failures with quantitative criteria was established via tree analysis (FTA) method, based on relationship model between flow field signals faults investigated by computational fluid dynamics (CFD). FTA...
Comparison of flow development in high density downer and riser reactors is experimentally investigated using fluid catalytic cracking particles with very solids circulation rate up to 700 kg/m 2 s for the first time. Results show that both axial radial structures are more uniform downers compared even at conditions, although distribution becomes less downer. Solids acceleration much faster reactor indicating a shorter length residence time, which beneficial chemical reactions requiring...
The characteristics and kinetics of coal oil shale pyrolysis were comparatively studied by using a micro fluidized bed reaction analyzer (MFBRA). isothermal differential model was first applied to calculate the kinetic parameters activation energy frequency factor according major gas components during pyrolysis. results showed that released from under condition had different initiating ending time points, difference more significant programmed heating conditions. shrinking core allowed...
Reactor performance of a high density circulating fluidized bed (CFB) riser is studied using ozone decomposition with extremely solids circulation rates up to 800 kg/m2s and superficial gas velocities ranging from 5 9 m/s. Results show that the axial radial distributions concentration are consistent those holdup. Higher flux and/or lower velocity lead higher reaction conversion in riser. Solids holdup dominant factor affecting conversion. Effects on overall more significant under low rate....
Computational particle fluid dynamics (CPFD) simulation was performed to study coal pyrolysis in a circulating fluidized bed downer containing binary particles (coal and heat carrier particles). A suitable drag model, which considers the cluster effect by assuming dynamic equilibrium for out of cluster, incorporated into CPFD shows acceptable accuracy describing hydrodynamics downer. The predicted mixing index temperature also good agreement with experiment, indicating that model can be used...
Particle clusters for FCC particles in a gas–solid circulating fluidized bed with 12.4 m high riser and 5 downer were identified from the images of flow by k-means machine learning algorithm-assisted processing method. An optimal k value 3 was determined justified several evaluation criteria algorithm. The solid holdup obtained processed agrees well that optical fiber particle cluster characteristics between downer, such as holdup, equivalent diameter, velocity, frequency, extracted then...
Reactor performance of a high flux circulating fluidized bed (CFB) downer is studied under superficial gas velocities 3–7 m/s with solids circulation rate up to 300 kg/m 2 s using ozone decomposition reaction. Results show that the reactant conversion in closely related hydrodynamics, holdup being most influential parameter on decomposition. High degree achieved at entrance region due strong gas‐solids interaction as well higher and concentration. Ozone increases increase and/or decrease...