Zeolite honeycomb molecular sieve -Selection of adsorbent

When the hot air flow purging method is used for regeneration, the coal particles Activated carbon The performance of shall meet the requirements of GB/T 7701.5, which can be referred to when non coal activated carbon is used as adsorbent. BET specific surface area of granular molecular sieve shall not be less than 350 ㎡/g.

Honeycomb activated carbon The horizontal strength of honeycomb molecular sieve shall not be less than 0.3MPa, the longitudinal strength shall not be less than 0.8MPa, the BET specific surface area of honeycomb activated carbon shall not be less than 750m2/g, and the BET specific surface area of honeycomb molecular sieve shall not be less than 350m2/g.

The breaking strength of activated carbon fiber felt shall not be less than 5N, and the BET specific surface area shall not be less than 1100 ㎡/g.

When granular adsorbent is used, the gas flow rate should be lower than 0.60m/s; When fibrous adsorbent is used, the gas flow rate should be lower than 0.15m/s; When honeycomb adsorbent is used, the gas flow rate should be lower than 1.2m/s.

For mobile adsorption device with honeycomb adsorbent, the gas flow rate should be lower than 1.2m/s.

When fibrous adsorbent is used, the pressure loss of adsorption unit should be lower than 4kPa; When adsorbent of other shapes is used, the pressure loss of adsorption unit should be lower than 2.5kPa.