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A detailed explanation of how to increase jet fuel yield through the following three methods. First, appropriately reduce the heat extraction ratio from Constant-1 and Constant-2 units to move the heat upward, while increasing the circulation flow rate at the constant top section to ensure an adequate amount of jet fuel distillate is extracted ; Second is the marginal operation of jet fuel quality ; Third, appropriately lower the dry point of normal top naphtha to widen the range of aviation kerosene.
Firstly, this has not been done with aviation fuel. If you want to know how these methods can be implemented, I can share my views for reference only. One approach is to appropriately reduce the heat extraction ratio from Constant-1 and Constant-2 so that the heat moves upward, while increasing the circulation volume of the constant-top stream to ensure an adequate amount of aviation fuel distillate is extracted; It should be easy to understand that by appropriately reducing the heat exchange amounts in Constant 1 and Constant 2, the temperature of the fluid returning to the tower in Constant 1 and Constant 2 increases ; At the same time, increase the constant parietal reflow. Second is the marginal operation of jet fuel quality ; There are requirements regarding the product quality of aviation fuel; it is advisable to produce as much aviation fuel as possible, so that less naphtha and diesel need to be produced. The principle is the same as in point three. Thirdly, the dry point of atmospheric naphtha should be appropriately reduced to widen the boiling range of aviation fuel. The principle is the same as in the second case: when more jet fuel is extracted, some of the light components end up in the jet fuel rather than in naphtha, and this achieves the desired result. I’m not very knowledgeable, so I’m not sure if you can understand what I mean