Method for preparing fuel oil with coal oil hydrogenation
A technology for coal tar and fuel oil, which is used in hydrotreating process, petroleum industry, processing of hydrocarbon oil, etc., can solve the problems that cannot be directly used as a product, affects the activity and stability of hydrocracking catalyst, and has high content of aromatics in diesel oil. The effect of cost-effective reforming reactions
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Embodiment 1~5
[0031] The examples 1-5 show the effect of using the first method to upgrade diesel oil.
[0032] The raw material oil used in the embodiment is heavy tar, and its properties are shown in Table 1. (wherein wt% is weight percent)
[0033] Table 1 Raw Oil Properties
[0034] Raw oil
1#
2#
Density, g / cm 3
1.10
1.16
Distillation range / ℃
190~420
250~600
Carbon residue, wt%
0.2
2.8
Sulfur content, wt%
0.49
0.52
Nitrogen content, wt%
0.99
1.11
Metal content, μg g -1
33.0
20.0
Oxygen content, wt%
1.3
2.0
Aromatic content, wt%
100.0
100.0
[0035] exist figure 1 On the basis of the process flow, the hydro-upgrading reaction part is added, and the details are as follows: a set of separation system is used for hydro-refining and hydro-refining / cracking, and the diesel fraction 11 separated from the fracti...
Embodiment 6~8
[0047] This example shows the effect of using the second method to upgrade diesel oil.
[0048] exist figure 1 On the basis of the flow process, a hydro-upgrading reactor is added, as follows: hydro-refining and hydro-refining / cracking adopt a set of separation system, which includes a gas-liquid separator 5 and a fractionation tower 8, and the liquid separated by the separator 5 The phase-generated oil enters the hydro-upgrading reactor, and the hydro-upgrading product enters the fractionation tower 8, and is fractionated to obtain naphtha 10, diesel oil 11, and heavy fraction 16, and the heavy fraction 16 enters the hydrotreating / cracking reactor. The resulting light fractions of different distillation ranges, process conditions and product properties are shown in Table 3. Wherein embodiment 6, embodiment 7 and the catalyst that the raw material that embodiment 6, embodiment 7 and embodiment 8 adopt, hydrorefining reactor and hydrorefining / cracking reactor are used and oper...
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