The feed consists of oil and gas, and there are specific requirements for the key components at the top and bottom of the tower; how should it be configured?
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The design I’m using specifies mass purity; n-butane is chosen as the component at the top of the tower. However, the base components consist only of gaseous substances, with no oils present. The purity calculated in this way certainly isn’t what I need, as the denominator becomes smaller. I would appreciate some guidance from those who know more about this.
If base is not specified, it means all.
It is recommended that the poster send over the data on the feed material, the configuration of the distillation tower, and the quality requirements for the product. We’ll give it a try; I think we can offer some assistance
An analysis was conducted on the oil fed in; the following are the mass fractions: methane 0.043588, ethane 0.10311, propane 0.189578, isobutane 0.071314, n-butane 0.090271, n-pentane 0.00214, and oil 0.5. The distillation curve of the oil (likely D86) is as follows: 0%–23℃； 10%--45℃ ； 20%--60℃ ； 30%--75℃ ； 40%--110℃ ； At 100%–130°C, the pressure at the top of the tower is 1.6 Mpa, the total pressure drop across the tower is 30 Kpa, the reflux ratio is 1. The carbon pentane content at the top of the tower must be less than 2%, while the carbon tetraene content at the bottom of the tower must be less than 0.1%. The feed temperature and pressure cannot be determined; using a liquid-phase feed is sufficient, with little impact