Carbon dioxide content at the outlet of the air purification unit for air separation, as well as the acetylene and hydrocarbon contents in the main condensation evaporator.
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This post was last edited by wfzhang on 2021-2-23 at 13:48. Dear teachers: The quality requirements for the raw air used in air separation units are specified in Article 4.2.2 of the \"Safety Technical Regulations for the Production of Oxygen and Related Gases by Deep Freezing Method\" (GB 16912-2008). However, the following two parameters are also important: 1. The carbon dioxide content at the outlet of the purification unit for raw air used in air separation. 2. Acetylene and hydrocarbon content in the main condensation evaporator. Articles 8.0.10 and 8.0.12 of the \"Code for Design of Oxygen Stations\" (GB 50030-2013) stipulate the need for online monitoring, but no specific parameters are provided. I would appreciate it if the teachers could advise me on the indicators and their sources.
It can be found in the instructions provided by the equipment manufacturer.
It should at least be in the design documents, right?
Yes, if not, relevant explanations can be provided to the device manufacturer. This is related to the regulations in the security industry.
1. After passing through the molecular sieve adsorber, the carbon dioxide content in the air (by volume) should be less than 1 PPm, the moisture content should be less than 2.6 PPm, and nitrous oxide levels should not exceed 0.07 PPm； 2. The acetylene level in the main condensation evaporator is less than 0.1 PPm, and the hydrocarbon content is less than 70 PPm.
Thank you. Does this apply to the data of a specific set of equipment, or is it valid for air separation units as well? Are there any relevant standards that set specific requirements?
\"Safety Technical Specifications for Cryogenic Air Separation Units\"