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Measurement of Vacuum Residue and Asphaltene Fluid Properties at Process Conditions
Fluid property Surface tension Viscosity Contact angle
2009/7/24
The fluid properties of interfacial tension and viscosity, and the fluid-solid interactions embodied in the contact angle, are important in a wide range of phenomena that affect the processing of the...
Effects of Asphaltene Content in Atmospheric Residue and Mean Pore Size of Catalyst on Initial Deactivation of Hydrodesulfurization Catalyst
Hydrotreating Atmospheric residue Catalyst deactivation rate
2009/7/24
(HDS) of atmospheric residue (AR) over Ni-Co-Mo catalysts supported on γ-alumina was carried out to examine the effect of alumina pore size on HDS activity, hydrodemetallization (HDM) activity and ini...
Promotion of Catalytic Activities and Suppression of Deactivation by Water in the Hydrotreatment of Atmospheric Residue
Atmospheric residue Hydrotreating Water addition Hydrodesulfurization
2009/7/24
Water was added to extend the continuous run of the atmospheric residue hydrotreatment process in bench plant and autoclave tests for improvement of catalyst life. Addition of water increased the ca...
Effects of Loading Order of Catalyst with Different Pore Structures in Residue Hydrotreating Process
Atmospheric residue Hydrotreating Catalyst loading order Sludge
2009/7/24
The activities of two combinations of three catalysts with different mean pore sizes were examined in the residue hydrotreating process. Packing of catalysts in the order of large to small pores enha...
Involvement of Asphaltene Decomposition in the Rapid Deactivation of Hydrodesulfurization Catalysts under Conditions for Deep Desulfurization of Atmospheric Residue
Hydrodesulfurization catalyst Atmospheric residue hydrotreating
2009/7/24
The effect of asphaltene (ASP) decomposition on catalyst deactivation under deep desulfurization conditions was investigated by reduction of sulfur from 0.3 to 0.1 mass% in a treated atmospheric resi...
Pretreatment of Vacuum Residue Using HDS Unit for Production of RFCC Feedstock
Vacuum residue conversion Swing reactor system FCC Pretreatment
2009/7/24
The reactivity of hydrocracking and performance of vacuum residue (VR) pretreatment was studied before residue hydrodesulfurization (HDS) for successive RFCC to convert VR to gasoline. Large NiMo por...
Promotion of Catalytic Activity and Suppression of Deactivation by Solvent Addition in the Hydrotreating of Atmospheric Residue
Atmospheric residue Hydrotreating Water addition Hydrodesulfurization
2009/7/24
The effect of addition of several solvents on atmospheric residue (AR) hydrotreating was examined in the autoclave test. Higher hydrodesulfurization (HDS) activity was obtained by adding solvents in t...
Upgrading of heavy residue in oil refining
refinery heavy residue upgrading desulfurization high severity fluid catalyst cracking
2009/4/27
Upgrading technology for heavy residue in which sulfur and metals are concentrated is getting more important since crude oils tend to be heavier. In this paper, first characteristics of heavy crude o...