Comparison of Hydrotreating Catalyst Deactivation by Coking with Vacuum Gas Oil Vs. Anthracene

Muegge, Brian; Massoth, F.E.

doi:10.1016/s0167-2991(08)62647-6

Cited by 15 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then, the inhibition behavior seems to be related to the strong adsorption of the specific nitrogen compound directly on the catalyst surface [58][59][60]. In order to elucidate that fact, adsorption constants were determined.…”

Section: Kinetic Model For Tetralin Inhibition By Nitrogenmentioning

confidence: 99%

Hydrogenation of Tetralin Over Ir Catalysts Supported on Titania-Modified SBA-16

et al. 2014

View full text Add to dashboard Cite

A series of Ti modified SBA-16 supports and their respective Ir-catalysts were prepared and characterized to study the effect of support preparation method on the dispersion of iridium and on the characteristics of Ir surface species. Two methods of incorporation of titania were tested: the sol-gel method in order to obtain Ti as heteroatom and incipient wetness impregnation to obtain Ti as TiO 2 (anatase phase). The results show that supports with different Ti species and dispersion can be obtained. The final catalyst was characterized at different preparation stages by XRD, elemental analysis and BET. The presence of Ti as Ti 4? in the nanostructure of SBA and as TiO 2 (anatase phase) was analyzed by UV-Vis-DRS and Raman spectroscopy. The iridium oxidation sate upon Ti-containing SBA-16 was studied by XPS, EDX, TEM and XRD, arriving at the good proportion of Ir 0 . H 2 chemisorption and TEM characterization for Ti-SBA-16 indicated that Ir particle size was lower than anatase/SBA-16. The catalyst that we synthesized had good activity measured in tetralin hydrogenation in presence of quinoline at mild conditions. The experimental data were quantitatively represented by a modified Langmuir-Hinshelwood-type rate equation. The preliminary results show these materials as promising catalysts for HDS/HDN reactions.

show abstract

Section: Kinetic Model For Tetralin Inhibition By Nitrogenmentioning

confidence: 99%

Hydrogenation of Tetralin Over Ir Catalysts Supported on Titania-Modified SBA-16

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Thus, the inhibition behavior seems to be related to the strong adsorption of the specific sulfur compound directly on the catalyst surface. − To elucidate this relationship, the adsorption constants were determined. Calculated Langmuir adsorption constants for all of the samples tested are listed in the second column of Table , for the data obtained at 250 °C.…”

Section: Resultsmentioning

confidence: 99%

Hydrogenation of Tetralin over Ir-Containing Mesoporous Catalysts

Vallés

Bottazzi

Martínez

et al. 2012

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

A new series of catalysts based on noble metals have been prepared with the main aim of obtaining thiotolerant catalysts to be used in second-stage processes of mild hydrotreating. We studied the catalytic properties of 1 wt % Ir-containing mesoporous materials in the hydrogenation of tetralin to decalin, in the presence of 100 ppm of dibenzotiophene at 250 °C and 15 atm pressure of hydrogen, using a Parr reactor. Ir/mesoporous materials were prepared by wetness impregnation, using iridium acetylacetonate as the source of Ir. The Ir/SBA-3 catalyst synthesized by us had a high activity in tetralin hydrogenation under mild conditions. The experimental data were quantitatively represented by a modified Langmuir–Hinshelwood-type rate equation. The preliminary results reveal that these materials are promising catalyts for HDS/HDN reactions.

show abstract

Novel Preparation of Titania-Modified CMK-3 Nanostructured Material as Support for Ir Catalyst Applied in Hydrodenitrogenation of Indole

et al. 2017

View full text Add to dashboard Cite

Comparison of Hydrotreating Catalyst Deactivation by Coking with Vacuum Gas Oil Vs. Anthracene

Cited by 15 publications

References 4 publications

Hydrogenation of Tetralin Over Ir Catalysts Supported on Titania-Modified SBA-16

Hydrogenation of Tetralin Over Ir Catalysts Supported on Titania-Modified SBA-16

Hydrogenation of Tetralin over Ir-Containing Mesoporous Catalysts

Novel Preparation of Titania-Modified CMK-3 Nanostructured Material as Support for Ir Catalyst Applied in Hydrodenitrogenation of Indole

Contact Info

Product

Resources

About