Diesel hydrogenation feedstock
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Some units use coker diesel; instead of letting it settle in the tank area, it goes directly from the coking unit to the hydrogenation unit. What are the disadvantages of this approach? Is coker diesel cleaner?
Production can still proceed without using a tank farm, but this leads to more unstable properties of the oil product, frequent fluctuations in operations, as well as higher levels of impurities and water in the raw material
This thing is, oh, a dangerous item! !
One needs to be quite skilled at this internal operation, hehe. If the properties of the raw materials are unstable and subject to large fluctuations, then the person in charge of this internal operation will have a lot to do!
Supplying char directly to downstream units often leads to difficulties in daily operation due to changes in composition and flow rates; it is better to have a large raw material buffer tank； Another advantage of direct supply is that it saves tank farm resources, and considering heat direct supply, it helps to conserve energy. So, direct supply of firewood doesn’t bring any direct benefits to the equipment, but it certainly is beneficial for the entire factory... hehe
Direct supply of coker diesel to diesel hydrogenation units: advantages include reduced equipment costs and increased corporate profitability； Disadvantages: Changes in reaction temperature rise and light components of the device affect operation
Most coker diesel goes straight into the hydrogenation process, but dehydration needs to be enhanced; moreover, coker diesel contains some coke dust, so closer coordination is necessary