Combined process for producing high-end graphite material
A graphite material and high-end technology, which is applied in the combined process field of producing high-end graphite materials, can solve the problems of unstable needle coke streamlined texture and high thermal expansion system, and achieve narrow temperature range, stable feed amount, and variable temperature range. Effect
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Embodiment 1
[0031] Catalytic oil slurry from a refinery was used as raw material, and the specific properties of the oil slurry are shown in Table 1. The temperature of the 10% distillation point of the light distillate oil on the 2nd tower of the vacuum deep drawing device is 300°C, the temperature of the 90% distillation point is 350°C, the temperature of the 10% distillation point of the middle distillate oil is 360°C, and the temperature of the 90% distillation point is 470°C, the temperature of 10% distillation point of the heavy distillate at the bottom of the tower is 480°C, part of the middle distillate enters the hydrotreating unit 5, and the catalyst bed of the hydrotreating unit is filled as follows: There are four reactors in the unit, each of which is filled with a protective agent , demetallization agent, desulfurization agent and denitrification agent, the loading volume ratio is 5:40:30:25, and the hydrotreating process conditions are shown in Table 2; the liquid phase stre...
Embodiment 2
[0033] Using the same catalytic oil slurry as in Example 1 as raw material, the temperature of the 10% distillation point of the light distillate on the 2nd tower of the vacuum deep drawing device is 340°C, the temperature of the 90% distillation point is 380°C, and 10% of the middle distillate is distilled The point temperature is 380°C, the 90% distillation point is 500°C, and the 10% distillation point temperature of the heavy distillate at the bottom of the tower is 510°C. Part of the middle distillate oil enters the hydrotreating unit 5, and the catalyst bed of the hydrotreating unit is filled as follows : There are four reactors in the device, which are respectively filled with protective agent, demetallization agent, desulfurizer and denitrification agent, and the filling volume ratio is 5:40:30:25. The hydrogen treatment process conditions are shown in Table 2; The liquid phase stream 6 is mixed with the unhydrogenated middle distillate oil 4 and then heated by the heat...
Embodiment 3
[0035] Using the same catalytic oil slurry as in Example 1 as raw material, the 10% distillation point temperature of the light distillate oil on the 2nd tower of the vacuum deep drawing device is 330 ° C, the 90% distillation point temperature is 350 ° C, and 10% of the middle distillate oil is distilled The point temperature is 370°C, the 90% distillation point is 480°C, and the 10% distillation point temperature of the heavy distillate at the bottom of the tower is 500°C. Part of the middle distillate oil enters the hydrotreating unit 5, and the catalyst bed of the hydrotreating unit is filled as follows : There are four reactors in the device, which are filled with protective agent, demetallizer, desulfurizer and denitrification agent respectively, and the filling volume ratio is 5:40:30:25. The hydrotreating process conditions are shown in Table 2; after hydrotreating, the The liquid phase stream 6 mixed with the unhydrogenated middle distillate oil 4 enters the coking tow...
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