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Air separation FAQ

How do I suspend the expander of a DEAR Cryogenic air separation unit?
How do I suspend the expander of a DEAR Cryogenic air separation unit?
Sep 06, 2021
How are T1, T2 and T3 temperatures controlled after the conversion of a piston expander to a turbine expander in a DEAR Biogas purification unit?
How are T1, T2 and T3 temperatures controlled after the conversion of a piston expander to a turbine expander in a DEAR Biogas purification unit?
Sep 03, 2021
How can I estimate the amount of oxygen that can be stored and supplied in the oxygen storage tank of a DEAR Biogas purification unit?
How can I estimate the amount of oxygen that can be stored and supplied in the oxygen storage tank of a DEAR Biogas purification unit?
Sep 03, 2021
What causes high bearing temperatures in the expander of the DEAR Biogas purification unit and how can they be solved?
What causes high bearing temperatures in the expander of the DEAR Biogas purification unit and how can they be solved?
Sep 02, 2021
Why do the oxygen cylinders of the DEAR Biogas purification unit have to be left at a certain pressure during use?
Why do the oxygen cylinders of the DEAR Biogas purification unit have to be left at a certain pressure during use?
Sep 02, 2021
Why are the low temperature heat exchangers in DEAR Biogas purification units mostly made of aluminium or copper?
Why are the low temperature heat exchangers in DEAR Biogas purification units mostly made of aluminium or copper?
Sep 01, 2021
If the molecular sieve adsorber purification process in the DEAR Biogas purification unit does not use a chiller pre-cooling system, what measures are required and what are the advantages and disadvan
If the molecular sieve adsorber purification process in the DEAR Biogas purification unit does not use a chiller pre-cooling system, what measures are required and what are the advantages and disadvantages of these measures?
Sep 01, 2021
What are the requirements for cooling water quality in the DEAR Biogas purification unit?
What are the requirements for cooling water quality in the DEAR Biogas purification unit?
Aug 31, 2021
What are the advantages and disadvantages of the DEAR Biogas purification unit for turbomachinery, generator braking and booster operation?
What are the advantages and disadvantages of the DEAR Biogas purification unit for turbomachinery, generator braking and booster operation?
Aug 31, 2021
What safety precautions should be taken when servicing the DEAR Biogas purification unit nitrogen water pre-cooling system?
What safety precautions should be taken when servicing the DEAR Biogas purification unit nitrogen water pre-cooling system?
Aug 30, 2021
Why does the liquid oxygen surface of the DEAR Biogas purification unit plate fin condensing evaporator have to be fully immersed in the plate unit?
Why does the liquid oxygen surface of the DEAR Biogas purification unit plate fin condensing evaporator have to be fully immersed in the plate unit?
Aug 30, 2021
How does the DEAR Liquid air separation unit liquefy oxygen and nitrogen and what role does it play in an oxygen plant?
How does the DEAR Liquid air separation unit liquefy oxygen and nitrogen and what role does it play in an oxygen plant?
Aug 27, 2021
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DEAR News
Learn more DEAR news
DEAR Air Separation Industrial Park has been rated as a high-tech intelligent equipment industrialization base in Henan Province
2025.01.15
Haixia Dialogue with Haixia Deep conversation between Chairman Hai Xia, founder of DEAR Air Separation, and Ms. Hai Xia, a well-known CCTV host
2025.01.09
DEAR Air Separation Blue Coast Intelligent Operation and Maintenance System achieves full space inspection coverage. Allows customers to realize efficient unmanned inspections on land and in the air.
2025.01.08
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)
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