Sulfur Recovery Daily Question 2018.11.2
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Question: What types of stability are required for catalysts? Answer: (1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
Answer: (1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
1. Mechanical strength； 2. Good temperature resistance ； 3. High activity ； 4. Good resistance to toxins.
(1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
(1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
Answer: (1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
Answer: (1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
(1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
Answer: (1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
(1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.
Answer: (1) Chemical stability -- maintaining a stable chemical composition and state of combination. (2) Thermal stability -- the ability to maintain its physico-chemical state without being damaged by heat under reaction conditions, while also retaining good stability within a certain temperature range. (3) Mechanical stability -- possess sufficient mechanical strength to ensure that the reaction bed is under appropriate hydrodynamic conditions. (4) It has sufficient resistance to poisons.