Seven Questions and Answers on Activated Alumina-Ⅰ

1. What is the regeneration temperature of molecular sieve, activated alumina, aluminum silicate glue and water resistant aluminum silicate glue? (Dryer)

Answer:

Activated alumina: 160 ℃ - 190 ℃

Molecular sieve: 200 ℃ - 250 ℃

Water resistant silicone aluminum adhesive: 120 ℃ - 150 ℃

Under normal working conditions, the pressure dew point of - 60 ℃ can be reached by only filling water resistant silicone aluminum adhesive

2. In addition to product quality, what are the reasons for broken balls in the dryer?

Answer:

① The compressive strength of adsorbent decreases due to water inflow, and the filling is not tight

② There is no pressure equalizing system or the pressure equalizing system is blocked, resulting in excessive impact force

③ The compressive strength of the product is affected by the use of a stirring rod for filling

3. What is the dew point of all activated alumina used in the dryer?

Answer:

Dew point - 30 ℃ to - 40 ℃ (atmospheric dew point)

Dew point - 20 ℃ to - 30 ℃ (pressure dew point)