Enriched gas and crude gasoline
Thread Content
Please discuss why the gasoline components are present in high amounts in the catalyzed enriched gas, while the light components are present in low amounts in crude gasoline
The gasoline content in the rich gas isn’t high, right? Our test results show low levels
I’ve really never worked with the rich gas component. The low content of light components in gasoline is due to the low pressure in the oil-gas separator for crude gas; as a result, the light components do not meet the conditions necessary for liquefaction and end up in the rich gas system. If the rich gas contains a large amount of crude gasoline, it may be because the liquid level in the separator is high, which causes those components to enter the rich gas system.
The components we analyze in the compressed rich gas are samples taken before it enters the absorption tower; this is done to compare the components of the rich gas and the dry gas, in order to assess the efficiency of the absorption process
The gasoline component in the rich gas should not be high; if it is too high, liquid can accumulate at the compressor inlet, posing a risk to operational safety. Even when present, it is only the components that have not been fully liquefied at a pressure of 0.2 MPa.
Before entering the compressor, the gasoline component content in the rich gas is 10%, while the liquefied gas component in gasoline is only 1%. Why?
The reason is that crude gasoline is formed by the condensation of the vapor at the top of the distillation tower, while the gas that does not condense is rich gas; as a result, a clear separation cannot be achieved. If the temperature of the rich gas is high, the gasoline component content can reach up to 20%.
Then why is the liquefied gas component in crude gasoline only 1%?