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Air separation FAQ

Principles of air precooling
Principles of air precooling
Nov 18, 2021
What is the cryogenic distillation？
There are three kinds of deep cold air separation processes in the textbook of deep cold air separation, two of which are single tower process and one with double tower. Only one pure component of oxygen nitrogen can be produced in single tower process, and two pure components can be produced simultaneously in double tower process. When the deep cold air separation is industrialized, the theory of thermodynamics has been fully mature, while distillatio...
Nov 17, 2021
Principles of air filtration
Principles of air filtration
Nov 17, 2021
How does the DEAR Biogas purification unit pressure relay work?
How does the DEAR Biogas purification unit pressure relay work?
Oct 29, 2021
How does the DEAR Biogas purification unit plate and fin heat exchanger achieve heat transfer between several fluids?
How does the DEAR Biogas purification unit plate and fin heat exchanger achieve heat transfer between several fluids?
Oct 29, 2021
What are the requirements for the safe use of DEAR Biogas purification unit piston liquid oxygen pumps?
What are the requirements for the safe use of DEAR Biogas purification unit piston liquid oxygen pumps?
Oct 28, 2021
Why is it necessary to control the high-pressure air pressure when heating the DEAR Biogas purification unit and what is the appropriate control level?
Why is it necessary to control the high-pressure air pressure when heating the DEAR Biogas purification unit and what is the appropriate control level?
Oct 28, 2021
What types of air cooling towers are available for DEAR Biogas purification units?
What types of air cooling towers are available for DEAR Biogas purification units?
Oct 27, 2021
How do I install an automatic valve in a DEAR Biogas purification unit?
How do I install an automatic valve in a DEAR Biogas purification unit?
Oct 25, 2021
What is the role of the liquefier in the DEAR Liquid air separation unit and why is it possible to self-balance the temperature of the return flow outlet?
What is the role of the liquefier in the DEAR Liquid air separation unit and why is it possible to self-balance the temperature of the return flow outlet?
Oct 22, 2021
What is the principle of action of the DEAR Liquid air separation unit (section-2 or section-3 valve) and how does it work?
What is the principle of action of the DEAR Liquid air separation unit (section-2 or section-3 valve) and how does it work?
Oct 22, 2021
What factors affect the discharge volume of a DEAR Liquid air separation unit centrifugal compressor?
What factors affect the discharge volume of a DEAR Liquid air separation unit centrifugal compressor?
Oct 21, 2021
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DEAR News
Learn more DEAR news
Kaifeng DEAR Air Separation's "Gas Investment Service" has received unanimous praise from customers.The professional skills and dedication of its operation and maintenance team have been highly prai
2024.12.19
8 Iranian Companies Invite “DEAR Air Separation” for Business Talks
2024.12.16
(Mr. He Baotang, Founder of DEAR Air Separation) Air Separation Industry Research Institute of Kaifeng City Academy of Sciences (Fourth Work Promotion Meeting)
2024.12.06
DEAR air separation was selected for the "Credit China" program on CCTV channel Rated as a 'Key Credit Certification Enterprise'
2024.11.28
DEAR Air Separation Signed 40000 Level Smart Air Separation Project
2024.11.26
DEAR Air Separation 20th Anniversary Celebration grandly held
2024.11.16
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