Cyclic ratio of delayed coking unit
Thread Content
As a raw material for the production of lithium-ion battery anode materials, low-sulfur coke is in growing demand, resulting in a supply shortage in the market. In the past, the main target product of delayed coking units was oil products, with efforts to minimize coke production by operating at low pressure and a low recycle ratio. Currently, producing more coke (low-sulfur coke) offers significant economic benefits; it is important to determine what appropriate ranges are for the pressure in the coke ovens and the circulation ratio in various coking plants.
To produce low-sulfur coke, the most important thing is to purchase low-sulfur raw materials. Compared to coke, coke with a higher circulation ratio has a slightly higher quality, but it also produces more gas phase, resulting in a lower yield of the liquid phase. The economic benefits also need to be considered as a whole.
Actually, we’ve always been around 0.6...... and the fluctuation is quite large because of the low processing volume=. =