The nitrogen used for vinyl chloride monomer has a high oxygen content.
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The nitrogen used for vinyl chloride monomer has a high oxygen content. The dispatch team ordered the shutdown of the monomer production process; the furnace used for ethylene synthesis was modified to function as an acid producer, while the current supplied to the electric cells at the front end was not reduced. The flow of hydrogen chloride and liquid chlorine was increased to its maximum level. Is such a decision by the dispatch team appropriate? Are there any other better approaches? When the plant is shut down, should ethylene synthesis proceed by first producing acid or by reducing the production volume, or should both processes be carried out simultaneously? During the acid production process, it is necessary to be aware of the risk of explosions due to mixed gases in the hydrochloric acid tank. There is no issue with the nitrogen production units; however, after shutdown during night shifts, the oxygen level becomes too high. How should one proceed to investigate this issue in order to eliminate potential hazards?
The question isn’t clear enough! “What does “modification of the ethylene synthesis furnace for acid production” mean? Is it the ethylene method?
Why is it so easy for nitrogen production systems to contain oxygen? The reason should be found
After the night shift shutdown, the oxygen level increased; there must be a leak somewhere, allowing oxygen to get in
Is the nitrogen used for vinyl chloride monomer high in oxygen content? It is necessary to check whether the oxygen content in the nitrogen is high. If it is not high, it is a problem with the process system; if it is high, then the nitrogen production system should be inspected. For safety reasons, it is best to reduce the production flow rate.
Nitrogen has an oxygen content of less than 3%; high levels can affect production safety. Special attention should be paid to the nitrogen generation system.