【Daily Question】1.14 Short-answer question: The impact of heavier crude oil properties on operations
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This post was last edited by Catalyzing a Grain on 2016-1-18 08:39. Brief question: What impact does an increase in the density of crude oil have on operations? The initial boiling pressure decreases, the temperature after cooling drops, the liquid level in the primary distillation tower rises, gasoline production falls, and the dry point increases. Correct +2; In-depth discussion +5. @Guan Gongyu
The top pressure of the tower decreases, the dry point rises, the tower temperature drops, the liquid level at the bottom of the tower increases, the load on the furnace decreases, and the temperature at the furnace outlet rises.
What impact does an increase in the density of crude oil have on operations? As the properties of crude oil become heavier, the initial vapor pressure decreases. When the temperature at the top of the tower remains unchanged, the yield of distillates decreases while the dry point rises, and the liquid level at the bottom of the distillation column increases. As the crude oil becomes heavier, its vaporization rate in the column decreases, and the temperature at the side-stream distillation outlet also drops. At this point, it is necessary to reduce the amount of product taken out; if needed, the reflux from the middle section can be decreased as well, in order to ensure that the product quality remains satisfactory.
The pressure at the top of the primary distillation tower decreases, the temperature after cooling drops, the liquid level at the bottom of the primary distillation tower rises, gasoline production decreases, and the dry point increases. 【A few days ago there was a question about (crude oil becoming lighter); it was the exact opposite】
What impact does an increase in the density of crude oil have on operations? Answer: The pressure at the top of the primary distillation tower decreases, the temperature after cooling drops, the liquid level at the bottom of the primary distillation tower rises, gasoline production decreases, and the dry point increases.
As the properties of the crude oil become heavier, the pressure at the top of the tower decreases. There is less content of light components and more content of heavy components, which can easily be carried away through the side streams. Therefore, it is necessary to lower the top temperature and the temperature at which material is drawn from the side streams, ensuring that this temperature does not become too high. Heavier crude oil increases the load on the vacuum distillation tower, as well as the amount of residue at the bottom of the tower.
The initial vapor pressure decreases, the temperature after cooling drops, the low liquid level in the initial distillation tower rises, gasoline production falls, and the dry point increases
The pressure at the top of the primary distillation tower decreases, the temperature after cooling drops, the liquid level at the bottom of the primary distillation tower rises, gasoline production decreases, and the dry point increases.
With all other conditions unchanged, the extraction rate decreases, the light oil yield drops, the bottom liquid level rises, the top pressure falls, and the dry point of gasoline increases
The pressure at the top of the primary distillation tower decreases, the temperature after cooling drops, the liquid level at the bottom of the primary distillation tower rises, gasoline production decreases, and the dry point increases.
1. The yield of normal paraffin gasoline decreases. 2. The temperature of crude oil entering the plant increases. 3. The desulfurization and alkylation reaction temperature in the first processing line rises. 4. The cost of crude oil processing increases