Petrochemical catalysts #2

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