How should production plans be adjusted to reduce diesel output in the current situation of a surplus in the diesel market?
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With the current surplus in the diesel market, how should production plans be adjusted to reduce diesel output?
Solution: 1. Raise the initial distillation temperature of diesel, which can be increased to 210°C； ⒉Diesel is fed back into catalytic reprocessing to produce more gasoline.
The idea for the 2nd floor is great; I agree.
Sigh. This is easy to handle. . . 1. In the operational adjustment of atmospheric and vacuum distillation as well as coking, what needs to be done is to reduce the cut point slightly. . . Just try to return the lighter components to gasoline. . . 2. Catalysis is no longer just a matter of adjusting the operation of the distillation tower. . . It also involves the matter of the operating procedure for the reaction unit; everyone should follow the procedures designated for gasoline or gas use. . . The technicians at each unit will be able to solve this problem. . . . Hahahahaha. . . 3. Other units, such as hydrorefining or hydrocracking, employ methods and principles similar to those in 1 and 2 to produce more gasoline and less diesel. . . No need to elaborate further. . . :lol
Within two months, there were again complaints about a shortage of diesel, which revealed that the management standards of those two companies were rather poor.
Reprocessing diesel is not a good idea. The main issue is that the economic benefits of using catalytic cracking reprocessed diesel are poor. However, the main solution still lies in catalytic cracking. Changing the operating conditions and catalyst is the most feasible solution. Just follow the foreigners’ experience.
Making the cut point in the hydrocracking product distillation tower a bit lower should work, right? Also, more propylene and naphtha should be produced on the catalytic side
Our current sales of diesel are not very good. We could consider lowering the reaction temperature as a way to produce diesel, or else increase the activity of the catalysts. Regarding distillation, it’s possible to reduce the top temperature in order to separate the diesel components into gasoline, but it’s important to ensure the quality of the gasoline! !
There are many ways to reduce diesel production; in atmospheric and vacuum distillation units as well as catalytic cracking units, the cut points between gasoline and diesel can be adjusted – the dry point of gasoline is set at 204°C, the initial boiling point of diesel at 210°C, and the 95% point of diesel at 340°C. To improve catalyst activity in catalytic cracking units, the exit temperature of the riser must be raised to over 520°C. Materials such as reformed aromatics that should be avoided from being mixed into diesel. These methods all involve adjustments to the entire plant process; in other words, they represent adjustments in the opposite direction of the measures taken in the past to increase the ratio of firewood to gas. This post was last edited by bluesea on 2009-2-23 11:26]
Learned*: victory:
1. The catalytic unit increases the degree of reaction. 2. It raises the dry point of gasoline and the initial boiling point of diesel. 3. In the atmospheric and vacuum distillation units, the light fraction in diesel is reduced, and the 95% distillation temperature is kept low. 4. By optimizing the cut points for gasoline and diesel, the heavy fraction in hydrotreated naphtha is increased, while the dry point of gasoline and the initial boiling point of diesel are raised. 5. Some straight-run feed is converted to catalytic feedstock.