Regarding the absorption dose in the absorption tower
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What should the oil-to-gas ratio be set at? How to calculate it? The ratio of absorbed dose to the amount of enriched gas.
This post was last edited by Refiner on 2018-6-9 07:25. The adjustment of absorption dose and supplementary absorption dose mainly involves changing the liquid-to-gas ratio; increasing this ratio can enhance the driving force in the absorption tower, while increasing the supplementary absorption dose can improve the absorption efficiency of C3 compounds. However, excessive increases in these values will lead to increased loads on the stripping and stabilization reboilers. The amount of absorbent itself does not change – what is adjusted is the amount of supplementary absorbent used. I’m not sure what the amount of supplementary absorption dose used by the poster is (what is the scale of the plant?) ), and also control the absorption temperature properly.
Oil-to-gas ratio: between 2.2 and 2.5 kg/kg; this is an empirical value. The volume flow rate of the rich gas is generally displayed on the equipment, and in terms of operation, the ratio of absorption dose to the volume flow rate of the rich gas should be no less than 4.5 kg/m3. At the same time, over-absorption must be prevented; generally, the amount of gas released is about 7% of the feed volume. Hope this can help you
15 tons of supplementary absorbent were added, with a processing volume of 140 tons
The analyzed gas volume is 7% of the feed volume, and the feed volume refers to that stream (is it the rich gas?)
So is the amount of your crude gasoline high? A supplementary absorption dose of 15 isn’t much; it should be increased