Steaming of Hydrodesulfurization Catalysts
Journal of The Japan Petroleum Institute, 1970 Effects of steam-aging on the activity and physical properties of commercial hydrodesulfurization catalysts were studied under such conditions that the catalysts would be subjected to coke-burning regeneration in the commercial units. The steam-aging experiments were carried out using a 200cc autoclave under the conditions of 1-21kg/cm2-absolute and ...
Hideo Takaoka +3 more
openaire +2 more sources
ChemCatChem, Volume 17, Issue 21, November 10, 2025.Desulfurization in the FCC riser is achieved by modifying zeolite catalysts with La3+ ions, promoting H2S formation from thiophenic compounds while suppressing secondary reactions. This approach enhances gasoline quality by increasing selectivity for H2S and enabling efficient condensation and alkylation, supporting cleaner fuel production and ...
Ronaldo C. Santos +8 more
wiley +1 more source
The Effect of Coking on Kinetics of HDS Reaction under Steady and Transient States [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2004 A study was made of the coking of a commercial fresh sulfide Ni-Mo/Al2O3 catalyst in a fixed-bed reactor. The catalyst was coked using different coke precursors in the gas oil under accelerated conditions at temperatures of 400 to 450°C to yield ...
Shohreh Fatemi +3 more
doaj
Crude-specific Optimal Operation of Hydrodesulfurization
Chemical Engineering Transactions, 2021 Crude oil has different characteristics according to its origin, and this difference causes suboptimal operation if not considered. Similar to other refinery operations, hydrodesulfurization suffers from lacking this knowledge.
Esin Iplik +2 more
doaj +1 more source
Hydrodesulfurization of chlorinized coal [PDF]
, 1983 A method of desulfurization is described in which high sulfur coals are desulfurized by low temperature chlorinolysis of coal in liquid media, preferably water, followed by hydrodesulfurization at a temperature above 500 C.
Kalvinskas, J. J., Rohatgi, N. K.
core +1 more source
Hydrocracking of long paraffins over Pt-Pd/WO3-ZrO2 in the presence of sulfur and aromatic impurities [PDF]
, 2013 The hydrocracking of long paraffins in the presence of sulfur and aromatic impurities using Pt–Pd/WO3–ZrO2 was assessed. The catalysts were tested for n-hexadecane hydrocraking in the presence and absence of several poisons, benzothiophene, quinolein ...
Busto, Mariana +4 more
core +1 more source
Determining the Optimum Temperature Path Versus the Catalyst Working Time in a Trickle Bed Diesel Hydrodesulfurization Reactor [PDF]
Chemical and Biochemical Engineering QuarterlyThis study consists of four main parts. First, a heterogeneous reactor model was developed to simulate a diesel hydrodesulfurization (HDS) reactor with catalyst deactivation. Second, operating conditions were investigated.
H. R. Homayonfar +2 more
doaj +1 more source
Investigation of Massive Catalyst based on Molybdenum Disulphide by Simultaneous Thermal Analysis and Mass Spectrometry Methods [PDF]
, 2015 The paper presents the results of experimental studies of massive sulfide catalysts by simultaneous thermal analysis and mass spectrometry. It is found that the STA/MS methods are quite informative for testing the catalyst systems based on MoS2 and are ...
Akimov, A. S. +6 more
core +1 more source
Nanocrystalline Sulfided NiMoW Catalyst Supported on Mesoporous Aluminas for the Hydrodesulfurization of 4,6-Dimethyldibenzothiophene [PDF]
, 2023 R. Palcheva +6 more
openalex +1 more source
Hydrogen from Biogas: Dynamic Modeling of an Integrated Shift Reactor
Chemie Ingenieur Technik, Volume 97, Issue 11-12, Page 1041-1051, November 2025.A dynamic, two‐dimensional shift reactor model for the production of hydrogen from biogas is presented. This shift reactor enables the preheating of the biogas feed and, in parallel, reduces fixed‐bed temperatures, resulting in increased hydrogen yields. The model is validated with measurement data from a pilot biogas steam reforming plant.
Edwin Hirtreiter +5 more
wiley +1 more source