Sumários

Mini Test of Heterogeneous Catalysis Module

14 abril 2023, 09:30 • José Manuel Félix Madeira Lopes

Mini Test of Heterogeneous Catalysis Module.

Revisions

13 abril 2023, 10:30 • José Manuel Félix Madeira Lopes

Revisions.

Clarification of students questions.

Bifunctional catalysis: the hydrocracking process

13 abril 2023, 08:30 • Carlos Manuel Faria de Barros Henriques

Concept of catalytic function: the mono and bi-functional catalysis.

Bifunctional catalysis in oil refining: the hydroisomerisation and hydrocracking.
New achievements in bifunctional catalysis
The hydrocracking process in an advanced oil refinery: the metal-acid bifunctional catalysts. The industrial catalysts.
The catalyst cycle life. The metal/acid balance.
Mechanism of hydrocracking of n-paraffins: main products
The configuration of hydrocracking processes: the fix-bed reactors.




Zeolites Applications in Industrial Catalytic Processes

12 abril 2023, 11:00 • José Manuel Félix Madeira Lopes

5 - Zeolites Applications in Industrial Catalytic Processes

Zeolites: general features, properties.

Fluid Catalytic Cracking Process (FCC): objectives; reactor/regeneration units; catalysts; reactions; mechanisms of cracking reactions.

Characterization of Catalysts

31 março 2023, 09:30 • José Manuel Félix Madeira Lopes

4 - Characterization of Catalysts.

d) Quality of the Active Surface: example of acidity; solid acid catalysts; properties of acid sites, concentration, nature, strength, density, accessiility; TPD of amonia for characterization of global acidity, total concentration of acid sites, acid strength; IR spectroscopy of OH groups for chacterization of Bronsted acidity; IR spectroscopy of adsorbed bases (pyridine) for separate chracterization of Bronsted and Lewis acid sites, concentration of sites and acid strength; model reactions for acidity assessment in reaction conditions.