Hydrofining technology of heavy benzol
A technology for hydrorefining and heavy benzene, applied in hydrotreating process, petroleum industry, organic chemistry, etc., can solve the problems of waste of aromatic hydrocarbon resources, inability to remove, environmental pollution, etc., and achieve good product quality, high added value, The effect of not easy to coke
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Embodiment 1
[0020] A pickled heavy benzene is used as raw material 1, its properties are shown in Table 1, the reaction conditions of the pre-hydrogenation reactor are reaction temperature 180°C, reaction hydrogen partial pressure 2.0MPa, reaction hydrogen-oil ratio 200:1, reaction liquid hourly space velocity 0.5 h -1 ; The reaction conditions of the main hydrogenation reactor are reaction temperature 300°C, reaction hydrogen partial pressure 2.0MPa, reaction hydrogen oil ratio 200:1, reaction liquid hourly space velocity 0.5h -1 , see Table 1 for the properties of hydrogenated oil, Table 2 for the properties of solvent oil products, and Table 3 for the properties of industrial naphthalene products.
[0021] Table 1
[0022] Analysis Project
Heavy benzene raw material 1
Hydrogenated oil
Exterior
dark brown liquid
Colorless and transparent
Density at 20°C, kg / m 3 ,
971
968
Distillation range, ℃
96~266
95~265
...
Embodiment 2
[0029] A hydrogenated heavy benzene is used as raw material 2, its properties are shown in Table 4, the reaction conditions of the pre-hydrogenation reactor are reaction temperature 205°C, reaction hydrogen partial pressure 3.5MPa, reaction hydrogen-oil ratio 350:1, reaction liquid hourly space velocity 2.75 h -1 ; The reaction conditions of the main hydrogenation reactor are reaction temperature 330°C, reaction hydrogen partial pressure 3.5MPa, reaction hydrogen oil ratio 350:1, reaction liquid hourly space velocity 2.75h -1 , see Table 4 for the properties of hydrogenated oil, see Table 5 for the properties of solvent oil products, and see Table 6 for the properties of industrial naphthalene products.
[0030] Table 4
[0031] Analysis Project
Heavy benzene raw material 2
Hydrogenated oil
Exterior
dark brown liquid
Colorless and transparent
[0032] Density at 20°C, kg / m 3 ,
966
963
Distillation range, ...
Embodiment 3
[0038] A mixed heavy benzene prepared by acid-washed heavy benzene and hydrogenated heavy benzene in a weight ratio of 1:1 is used as raw material 3, its properties are shown in Table 7, and the reaction conditions of the pre-hydrogenation reactor are reaction temperature 230 ° C, reaction hydrogen partial pressure 5.0MPa, reaction hydrogen oil ratio 500:1, reaction liquid hourly space velocity 5.0h -1 ;The reaction conditions of the main hydrogenation reactor are reaction temperature 360°C, reaction hydrogen partial pressure 5.0MPa, reaction hydrogen oil ratio 500:1, reaction liquid hourly space velocity 5.0h -1 , see Table 7 for the properties of hydrogenated oil, see Table 8 for the properties of solvent oil products, and see Table 9 for the properties of industrial naphthalene products.
[0039] Table 7
[0040] Analysis Project
Heavy benzene raw material 3
Hydrogenated oil
Exterior
dark brown liquid
Colorless and transparent
Densi...
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