The benzene content in the gas behind the tower increased sharply
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The process parameters related to gas temperature remained unchanged; the oil washing circulation rate, absorption capacity, benzene content in the lean oil, absorption temperature, and absorption area also stayed the same. However, the benzene content in the gas exiting the tower increased sharply. The only change is that the amount of gas produced has increased, and the equipment is operating normally? Could it be due to that reason as well? Thank you to all my fellow sailors. Additionally, how is the oil-washing capacity determined? (Are there any other methods to improve the oil-washing capacity besides increasing the amount of oil used for washing and improving the quality of that oil?)
The obvious reason for the increase in pressure behind the tower is that the filtering elements installed in your equipment are not functioning properly, and they are carried away again by the inertia of the equipment. Unqualified filtering products are equivalent to being useless
What are filter elements generally made of?
In one case, an increase in gas flow rate leads to a deterioration in the mist capture efficiency of the gas exiting the tower; the gas after the tower contains washing oil, which affects the test results. It is possible to check whether the sampling point for the gas after the tower is wet and contains such substances, and make a comprehensive judgment by taking into account indicators such as the benzene content in the gas before the tower and the yield of crude benzene； Another possibility is that the quality of the cleaning oil has deteriorated; it is necessary to carefully examine the process involved in producing this cleaning oil and compare it with the conditions before the change, including any changes in the quality parameters of the newly purchased cleaning oil. Some people now mix different substances to create cleaning oil, and although such oil meets the national standards in terms of quality parameters, it becomes ineffective as soon as it is used.
Has the gas temperature, the lean fuel temperature, and the lean fuel flow rate all remained unchanged? Has the amount of gas entering the tower not changed either? Our absorption temperature levels are not up to standard; yesterday the benzene content behind the tower was slightly high, but it has dropped today. I can’t do it either.