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Showing 1 to 15 of 15 for “"Hydrodenitrogenation"”.
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New chelating ligands: Applications to hydrodenitrogenation catalysis
… were not isolable. In an effort to model the hydrodenitrogenation of pyrrole a novel tantalum-bis(η¹-pyrrolyl) compound was synthesized. The reaction of (DIPP)₃TaCl₂(Et₂O) (39) with two equivalents of lithium pyrrolide resulted in the formation of (η⁵-C₄Me₄N)TaMe₃(η¹(N)-C₄H₄N) (50) in low …
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Reaction network and kinetics of vapor-phase catalytic hydrodenitrogenation of quinoline
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1980.
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Catalytic hydrodenitrogenation and hydrodeoxygenation of model compounds in a trickle bed reactor
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1983.
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Kinetics and interactions of the simultaneous catalytic hydrodenitrogenation of pyridine and hydrodesulfurization of thiophene
Thesis. 1977. Ph.D.--Massachusetts Institute of Technology. Dept. of Chemical Engineering.
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Spectroscopic and Kinetic Studies of Hydrodenitrogenation and Hydrodesulfurization over Supported Nickel Phosphide (Ni₂P)
… application in hydrodesulfurization (HDS) and hydrodenitrogenation (HDN). The work carried out includes synthesis of Ni₂P on different siliceous supports, SiO2 and MCM-41. It also includes characterization of these catalytic materials using X-ray diffraction (XRD), temperature-programmed …
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Effect of hydrogen sulfide on the kinetics of hydrodenitrogenation of quinoline and its reaction intermediates in vapor phase
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 1980
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New Catalysts for Hydroprocessing: Molybdenum and Tungsten Phosphide
… and supported on silica. The mechanism of hydrodenitrogenation on MoP/SiO2 and WP/SiO2 catalysts was investigated by comparison of hydrodenitrogenation reactions of pyridine, piperidine, n-pentylamine, tert-pentylamine, and neo-pentylamine.
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Synthesis, characterization and reactivity of tungsten oxynitride
… showed reasonable hydro deoxygenation (HDO) and hydrodenitrogenation (HDN) activities, but little hydrogenation (HYD) or hydrodesulfurization (HDS) activities.
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Novel, High Activity Hydroprocessing Catalysts: Iron Group Phosphides
… trickle bed reactor for the simultaneous hydrodenitrogenation (HDN) of quinoline and hydrodesulfurization (HDS) of dibenzothiophene using a model liquid feed at realistic conditions (30 atm, 370 °C). The reactivity studies showed that the nickel phosphide (Ni₂P/SiO₂) was the most active of …
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Reactivity and Structure of Supported Nickel Phosphides (Ni₂P) in Deep Hydrodesulfurization Catalysis
… Investigation of the reaction mechanism in the hydrodenitrogenation (HDN) of 2-methylpiperidine together with in situ FT-IR measurements were conducted to understand how catalyst properties affect activity and selectivity.
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Preparation and Reactivity of Niobium-Containing Hydrotreating Catalysts
… trickle-bed reactor for the simultaneous hydrodenitrogenation (HDN) of quinoline and hydrodesulfurization (HDS) of dibenzothiophene. The niobium oxynitride presented low HDS activity and moderate HDN activity, whereas the supported bimetallic oxycarbide was found to be highly active for …
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Characterisation of minerals using evolved gas analysis and infrared spectroscopy.
… that were cation dependent. Over Al[3+]-SWy-2 hydrodenitrogenation via the Hofmann degradation was the predominant route whereas ring dehydrogenation to aniline either directly from CHA or possibly via cyclohexylimine was significant over Ni[2+]-SWy-2. Very little unmodified cyclohexylamine was …
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Chemistry of highly reactive group 5 and 6 transition metal compounds
… N-heterocycles, in order to model aspects of hydrodenitrogenation. Several new coordination modes of phenazine to molybdenum were observed. Studies also indicate that oxidative addition of H₂ is promoted by (i) incorporation of nitrogen substituents into the central ring and (ii) ring fusion. …
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Kinetic Modelling Simulation and Optimal Operation of Trickle Bed Reactor for Hydrotreating of Crude Oil. Kinetic Parameters Estimation of Hydrotreating Reactions in Trickle Bed Reactor (TBR) via Pilot Plant Experiments; Optimal Design and Operation of an Industrial TBR with Heat Integration and Economic Evaluation.
… reactions were hydrodesulfurization (HDS), hydrodenitrogenation (HDN), hydrodeasphaltenization (HDAs) and hydrodemetallization (HDM) that includes hydrodevanadization (HDV) and hydrodenickelation (HDNi). An optimization technique is used to evaluate the best kinetic models of a trickle-bed …