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WorksheetsPetrochemical catalysts #2
Total questions: 10
Worksheet time: 20mins
Which of these are solid catalysts? Choose ALL of the correct answers.
Mixed agglomerates
Homogeneous catalyst
Supported catalyst
Bulk catalyst
How many components do heterogeneous catalysts have?
1
2
3
4
Which of these components are found in solid catalyst?
Active catalytic material, promoter, sol gel
Active catalytic material, promoter, support
Active catalytic material, support, surface area
Active catalytic material, support, bulk catalyst
How are bulk catalysts prepared?
Impregnation process
Dry mixing
Adsorption and ion exchange
Bulk preparation
Which of these processes are mainly used to prepare bulk catalysts? Choose ALL of the correct answers.
Impregnation process
Precipitation process
Filtration process
Sol gel process
Which of these cubes has the lowest surface area to volume ratio?
The small cube
The big cube
Multiple small cubes stacked into a big cube
They all have the same SA:V ratio
What is an impregnation process?
Support material is inserted with catalytically-active material
Support material is deposited into the catalyst
Pore of support material is filled with sol gel
Pore of support material is loaded with ions
What is the purpose of catalyst characterisation?
To determine how much a catalyst will cost
To modify the reaction to be less efficient
To understand the relationship between physical, chemical and catalytic properties
To measure basic strength of a catalyst
What kind of properties can be measured during catalyst characterisation? Choose all the correct ones
Physical state of a catalyst
Substances that a catalyst is made up of
Type of catalyst
Catalyst surface chemical properties
What does agglomerated mean in mixed agglomerated catalyst?
Mixture is clumped together using chemicals and activated
Mixture is separated into catalyst and active substances
Mixture is clumped together using adsorption and ion-exchange
Mixture is separated into catalyst and powdered support
