The impact of coking feedstock properties on operations
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In our company’s coking process, the residual carbon content of the raw materials is kept between 17 and 19. What impacts will occur on the operation if the properties of these raw materials change? 1. The residual carbon decreases to 15.5–17.5 ； 2. The volume of the distillate at 540°C increased from 11% to 20% ； 3. Alkaline nitrogen increased from 2100 to 2400 ； 4. The specific gravity decreased from 0.98 to 0.96 ； I appreciate your advice, thank you!
In our company’s coking process, the residual carbon content of the raw materials is kept between 17 and 19. What impacts will occur on the operation if the properties of these raw materials change? 1. The residual carbon decreases to 15.5–17.5 ； Coke yield increases, while light oil yield decreases. 2. The volume of the distillate at 540°C increased from 11% to 20% ； There is a decrease in light oil components, while there are more heavy oil components. 3. Alkaline nitrogen increased from 2100 to 2400 ； If it enters the catalyst, it will have a significant impact on the catalyst. 4. The specific gravity decreased from 0.98 to 0.96 ； This is related to the density of the finished oil.
There is a relationship between the yield of coke and the residue value, right? Then why does the yield of coke increase when the residue value decreases? I don’t understand
The boiling range has become lighter; the yield of heavy oil has increased while the yield of light oil has decreased. Why is that?
I misread it; it should be a decrease in the coke yield.
The lighter raw materials result in a higher split load, and a high nitrogen content has a significant impact on the subsequent hydrogenation catalysts