Hydrogenation coke method by adding coking distillate oil in residual oil
A technology of coking distillate oil and residual oil, which is applied in the field of adding coking distillate oil to residual oil for hydrogen coking, which can solve the problems of low quality petroleum coke, short furnace tube coking cycle, and low yield of liquid products, etc.
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[0012] Example 1:
[0013] See Table 1 for the properties of a typical hydrogen donor fraction.
[0014] Table 1 Structural parameters of hydrogen donor coking wax oil
[0015]
[0016] It can be seen that the naphthenic carbon fraction of this part of the coking distillate oil is higher, so the higher the concentration of active hydrogen atoms that can be transferred to other large aromatic radicals that are easy to condense and produce coke when heated, so The use of this fraction in the delayed coking process to circulate, is bound to inhibit the coking of the furnace tube and the formation of shot coke, reduce the coke yield, and increase the yield of liquid distillate products. The lower alkyl carbon fraction of the hydrogen-donating wax oil component indicates that the amount of free radicals generated from this part of the alkyl carbon is the smallest when heated, and therefore the probability of consuming its own potential hydrogen supply capacity is the lowest. The relativ...
Example Embodiment
[0019] Example 2:
[0020] See Table 1 for the properties of a typical hydrogen donor fraction.
[0021] Table 3 Structural parameters of hydrogen donor coking wax oil
[0022]
[0023] Table 4 Changes in liquid harvest and coke production
[0024]
[0025] It can be seen that the naphthenic carbon fraction of this part of the coking distillate oil is low, and the alkyl carbon fraction of the hydrogen-donating wax oil component is higher, so the effect after addition is not as good as that of distillate D. The coke production and liquid harvest are not good.
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