Practical Exercise on Purification Technology Version [014]
Thread Content
List the stages of catalyst heating for sulfidation Answer: Heating stage, constant-temperature removal of adsorbed water stage, heating stage, constant-temperature leveling of bed temperature, sulfidation stage, intensification stage, cooling stage.
(1) Heating phase. (2) Constant temperature and drainage stage. (3) Secondary heating stage. (4) Hydrogenation stage. (5) Early stage of vulcanization. (6) Main sulfidation period. (7) Strengthening phase. (8) Cooling and displacement.
Heating stage, constant-temperature removal of adsorbed water stage, heating stage, constant-temperature leveling of bed temperature, sulfidation stage.
Heating stage, constant-temperature removal of adsorbed water stage, heating stage, constant-temperature leveling of bed temperature, sulfidation stage, intensification stage, cooling stage.
Heating stage, constant-temperature removal of adsorbed water stage, heating stage, constant-temperature leveling of bed temperature, sulfidation stage, intensification stage, cooling stage.
1. Heating stage 2. Initial vulcanization stage 3. Main vulcanization stage 4. Strengthening stage 5. Cooling and displacement
The catalyst heating sulfidation process is divided into: heating period, sulfidation period, strengthening period, and displacement.
Heating stage, constant-temperature removal of adsorbed water stage, heating stage, constant-temperature leveling of bed temperature, sulfidation stage.
Heating stage, constant-temperature removal of adsorbed water stage, heating stage, constant-temperature leveling of bed temperature, sulfidation stage, intensification stage, cooling stage.
Heating stage, constant-temperature removal of adsorbed water stage, heating stage, constant-temperature leveling of bed temperature, sulfidation stage, intensification stage, cooling stage.
: (1) Heating phase. (2) Constant temperature and drainage stage. (3) Secondary heating stage. (4) Hydrogenation stage. (5) Early stage of vulcanization. (6) Main sulfidation period. (7) Strengthening phase. (8) Cooling and displacement.