当前位置: Home / Faq / Biogas purification FAQ /

Air separation equipment molecular sieve purification in which aspects should be noted?

Air separation equipment molecular sieve purification in which aspects should be noted?
Jun 03, 2024
Author: DEAR AST

Air separation equipment molecular sieve purification, one is the cooling equipment stage, the second is the accumulation of liquid stage, the third room to adjust the working condition stage. In the start-up process mainly focuses on giving full play to the refrigeration capacity of the expander, reasonably distributing the cooling capacity, and comprehensively cooling the equipment.
Attention should be paid to the following aspects: the molecular sieve used for the first time should be activated and regenerated once, with the purpose of removing the water and carbon dioxide adsorbed in the process of transport and filling. Activation temperature is generally higher than 200 ℃, lower than 250 ℃, when the outlet temperature reaches 80 ℃ can be cold blowing, activation time of not less than two cycles;
When the molecular sieve start-up process to send gas slowly, the venting valve should be closed cautiously to prevent damage to the molecular sieve in the bed due to pressure fluctuations; need to start the two expanders should be fully open booster reflux valve, the pressure of the first operating expander down, and then the two expander at the same time to load, to prevent the start of the booster after the occurrence of wheezing; pay attention to the control of the middle temperature of the heat exchanger; pay attention to the air-cooled tower to ensure that the work of the pre-cooled air to meet the design requirements. Pay attention to the work of air cooling tower to ensure that the pre-cooled air meets the design requirements.
DEAR Air Separation has rich technology and experience in design, manufacture and development of air separation equipment.
There are standardised design requirements and technical documents in all aspects of the equipment to ensure high quality and safe operation.

DEAR Air Separation Solve YourAir separation equipment molecular sieve purification in which aspects should be noted?You can also learn about otherBiogas purification FAQ about DEAR Air Separation, and solve the problem for you.
Didn’t find the problem encountered?
Please contact live chat or email for quick help.
Related FAQ
More Related FAQ
Centrifugal compressor, sometimes suddenly produce strong vibration in the production process, gas medium flow and pressure also appear substantial pulsation, and accompanied by periodic dull "call" sound, as well as airflow fluctuations in the network caused by "huffing" "huffing" strong noise, this phenomenon is known as the centrifugal compressor wheezing conditions in small air separation unit. According to the prod...
2025.09.04
In the air separation unit, low-temperature liquid is transported by centrifugal cryogenic pump. In order to ensure the reliable operation of the equipment, two sets of low-temperature pumps are generally equipped, one for use and one for standby. During normal operation, the main pump runs at full load, and the standby pump is in standby state under low load operation. Since the working medium temperature of cryogenic liquid pump is about -180°C, the working pressure is very high, and the pump body is installed in the cold box. When the pump fails, it is extremely difficult to maintain. Therefore, how to maintain the stable and reliable operation of cryogenic liquid pump is of great significance.
2025.09.03
Need more information?
Contact us for more details about our air separation equipment, solutions and services.
Products
  • Large air separation
  • Small air separation
  • High purity nitrogen air separation
  • Liquefaction air separation
  • Complete air separation
  • Biogas purification
  • Air separation parts
Need more information?
Tel:+86-19837850537
© Kaifeng DEAR Air Separation Industry Co., Ltd.. All rights reserved.
Online
Inquiry
Email
Top