Linzhou Zhang
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View article: Selective Adsorption of Vanadyl Porphyrin on Solid Adsorbent in the Presence of Polycyclic Aromatic Hydrocarbon: Kinetics, Equilibrium, and Thermodynamic Studies
Selective Adsorption of Vanadyl Porphyrin on Solid Adsorbent in the Presence of Polycyclic Aromatic Hydrocarbon: Kinetics, Equilibrium, and Thermodynamic Studies Open
The presence of vanadium compounds in heavy oils poses a significant challenge by poisoning and deactivating refining catalysts, making their removal an essential processing step. However, this process is challenged by the competitive adso…
View article: Scale-up of complex molecular reaction system by hybrid mechanistic modeling and deep transfer learning
Scale-up of complex molecular reaction system by hybrid mechanistic modeling and deep transfer learning Open
The scale-up of chemical processes involves substantial changes in reactor size, operational modes, and data characteristics, leading to significant challenges in predicting product distribution across scales. This study presents a unified…
View article: Molecular Characterization of Oxygen-Containing Compounds in Aged Lubricant Base Oils
Molecular Characterization of Oxygen-Containing Compounds in Aged Lubricant Base Oils Open
Characterization of oxidation products at the molecular level enables a better understanding of the lubricant oil oxidation mechanisms. A base oil was subjected to thermal aging for 168 h at 100, 140, and 175 °C. The aged oils were charact…
View article: Molecular conversion of polypropylene pyrolysis revealed by Ag+ complexation ESI Orbitrap MS
Molecular conversion of polypropylene pyrolysis revealed by Ag+ complexation ESI Orbitrap MS Open
View article: Programmed death-ligand 1 regulates ameloblastoma growth and recurrence
Programmed death-ligand 1 regulates ameloblastoma growth and recurrence Open
Tumor cell-intrinsic programmed death-ligand 1 (PD-L1) signals mediate tumor initiation, progression and metastasis, but their effects in ameloblastoma (AM) have not been reported. In this comprehensive study, we observed marked upregulati…
View article: Molecular-Level Kinetic Model for Light Hydrocarbon Steam Cracking Based on the SU-BEM Framework
Molecular-Level Kinetic Model for Light Hydrocarbon Steam Cracking Based on the SU-BEM Framework Open
In this work, a molecular-level kinetic model of ethane/propane steam cracking was developed by using a hybrid structural unit-bond electron matrix framework. The molecular-level simulation was conducted, creating a detailed feedstock comp…
View article: Axial Interaction of Vanadyl Porphyrins with Different Basic Ligands: A High Resolution Ms, Uv-Vis and Dft Study
Axial Interaction of Vanadyl Porphyrins with Different Basic Ligands: A High Resolution Ms, Uv-Vis and Dft Study Open
View article: Experiment and Catalyst Acid Property-Included Molecular Level Kinetic Model for Catalytic Pyrolysis Process
Experiment and Catalyst Acid Property-Included Molecular Level Kinetic Model for Catalytic Pyrolysis Process Open
View article: Analysis of the Contribution of Petroleum Acid Components to the Viscosity of Heavy Oils with High TAN
Analysis of the Contribution of Petroleum Acid Components to the Viscosity of Heavy Oils with High TAN Open
The viscosity of heavy oil hinders its cold production, posing a major challenge to its exploitation. The high viscosity of heavy oil can be attributed to the content of asphaltene. However, during the collection of heavy oil samples from …
View article: Cracking Behavior of Heavy Petroleum Polar Species in Collision-Induced Dissociation and Thermal Visbreaking
Cracking Behavior of Heavy Petroleum Polar Species in Collision-Induced Dissociation and Thermal Visbreaking Open
In thermal cracking and collision-induced dissociation (CID) processes, molecules/ions mainly undergo cleavage reactions. In theory, the cleavage reaction is preferred for weak bonds in both processes. The present study investigates the th…
View article: Molecular Reconstruction Method Based on NIR Spectroscopy for Reformates
Molecular Reconstruction Method Based on NIR Spectroscopy for Reformates Open
With the increasing attention to environmental protection and strict national standards, the production of high-quality clean gasoline is more and more required in modern refineries. At present, the molecular-level online modeling of the g…
View article: Molecular-Level Transformation of Heavy Oil During Slurry Phase Hydrocracking: A Comparison between Thermal Cracking and Hydrocracking
Molecular-Level Transformation of Heavy Oil During Slurry Phase Hydrocracking: A Comparison between Thermal Cracking and Hydrocracking Open
View article: A Molecular Kinetic Model incorporating Catalyst Acidity for Hydrocarbon Catalytic Cracking
A Molecular Kinetic Model incorporating Catalyst Acidity for Hydrocarbon Catalytic Cracking Open
We built a molecular-level kinetic model for hydrocarbon catalytic cracking, incorporating the catalyst acidity as the parameter to estimate the reaction rates. The n-decane and 1-hexene co-conversion catalytic cracking process was chosen …
View article: Impact of N, O Heteroatoms in Asphaltene on Adsorption of Vanadyl/Nickel Etioporphyrin
Impact of N, O Heteroatoms in Asphaltene on Adsorption of Vanadyl/Nickel Etioporphyrin Open
The interaction between functionalized graphene and metal porphyrins was studied for a better understanding of the influence of the N and O heteroatoms in asphaltene on demetallization efficiency during the solvent deasphalting process. Th…
View article: Optimization of Molecular Composition Distribution of Slurry Oil by Supercritical Fluid Extraction to Improve the Structure and Performance of Mesophase Pitch
Optimization of Molecular Composition Distribution of Slurry Oil by Supercritical Fluid Extraction to Improve the Structure and Performance of Mesophase Pitch Open
The composition distribution of slurry oil has a significant impact on the structure and performance of the mesophase. In this study, supercritical fluid extraction oil (SFEO) and extraction components were extracted from two slurry oils (…
View article: Prediction of Molecular Distribution and Temperature Profile of FCC Process through Molecular-Level Kinetic Modeling
Prediction of Molecular Distribution and Temperature Profile of FCC Process through Molecular-Level Kinetic Modeling Open
This work aims to develop a molecular-level process model framework for simulating the FCC process. The process model consists of the riser, regenerator, and separation models. A complex molecular-level kinetic model, containing 3,652 mole…
View article: Transformation Rule-Based Molecular Evolution for Automatic Gasoline Molecule Design
Transformation Rule-Based Molecular Evolution for Automatic Gasoline Molecule Design Open
Automatic molecular design on computers is an emerging technology for the determination of optimal fuel molecules. We developed a computer-aided molecular design framework through a transformation rule-based molecular evolution method. The…
View article: Ultra-selective molecular-sieving gas separation membranes enabled by multi-covalent-crosslinking of microporous polymer blends
Ultra-selective molecular-sieving gas separation membranes enabled by multi-covalent-crosslinking of microporous polymer blends Open
View article: A Mass-Temperature Decoupled Discretization Strategy for Large-Scale Molecular-Level Kinetic Model
A Mass-Temperature Decoupled Discretization Strategy for Large-Scale Molecular-Level Kinetic Model Open
The molecular conversion of complex mixture involves a large number of species and reactions. The corresponding kinetic model is consist of a series of ordinary differential equations (ODEs) with severe stiffness, leading to an exponential…
View article: Molecular-Sieving Energy-Efficient Gas Separation Membranes Enabled by Multi-covalent-crosslinking of Microporous Polymer Blends
Molecular-Sieving Energy-Efficient Gas Separation Membranes Enabled by Multi-covalent-crosslinking of Microporous Polymer Blends Open
Highly permeable and selective membranes that exceed the conventional permeability-selectivity upper bound are attractive for energy-efficient gas separations. In the context microporous polymers have gained increasing attention owing to t…
View article: Selective Molecular Characterization of Olefins in Hydrocarbon Mixtures by Ag <sup>+</sup> Complexation ESI High-Resolution Mass Spectrometry
Selective Molecular Characterization of Olefins in Hydrocarbon Mixtures by Ag <sup>+</sup> Complexation ESI High-Resolution Mass Spectrometry Open
View article: Molecular characterization and modeling of petroleum refining process: frontiers and challenges
Molecular characterization and modeling of petroleum refining process: frontiers and challenges Open
The green, high efficient and high value-added utilization of petroleum resource requires the molecular management of refining process.As the basis of precisely controlling and optimization of refinery, the molecular-level characterization…
View article: Development of petroleum refining molecular management modeling platform
Development of petroleum refining molecular management modeling platform Open
In order to maximize the petroleum resource utilization in modern refineries, the molecular management of refining process becomes more and more popular.Molecular management model is built based on the molecular-level characterization, com…
View article: The chemical fundamentals for heavy oil supercritical fluid extraction and multi-stage separation technology
The chemical fundamentals for heavy oil supercritical fluid extraction and multi-stage separation technology Open
The supercritical fluid extraction and fractionation method (SFEF) can realize deep cut and separation for heavy oils, which have provided a powerful tool for heavy oil chemistry research.This work summarizes recent research progress on as…