Operation of coking units
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This post was last edited by Shuichangshou on 2009-10-2 at 00:52. How can coking units be operated to improve product quality, especially the quality of the stable-absorbed product dry gas and liquefied gas? How should the C3 content in the dry gas be controlled?
Control the amount of supplementary absorbent to prevent excessive desorption in the desorption tower. This should be described in detail in the operating procedures; it’s best to check them.
It seems that it’s quite difficult to control the C3 content in coking dry gas; the same is true for us – it’s better in winter, and this is related to the characteristics of coking. I think the first thing is to control the liquid-to-gas ratio, lower the absorption temperature, and also prevent excessive desorption.
Due to the periodic fluctuations in coking units, it is difficult to ensure quality control for the backside absorption stabilization system. But nothing is impossible for those who are determined. With careful adjustment, it is still possible to control the quality of the dry gas. However, due to differences in gas composition and varying product structures (the yield of coker gasoline is much lower than that of catalytic gasoline), there is still a way to go before stable catalytic absorption can be achieved. Simulation software can also be used for calculations, which is helpful for adjustment as well.