A method for co-refining of inferior heavy oil and coal to produce oil and chemical products
A technology for low-quality heavy oil and chemical products, which is applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc. It can solve the problems of easy coking of equipment and low oil product yield, so as to prolong the operation cycle, slow down coking, reduce The effect of production costs
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experiment example 1
[0106] In the experimental process of the present invention, the inventors found that the relationship between the Kang's residual carbon value and the content of toluene insolubles in the inferior heavy oil had a great influence on the operation of the ebullated bed and the hydrogenation effect, not only affecting Oil yield, and greatly affect the operation cycle of the device, especially after a long operation time, the impact on the final oil yield.
[0107] The specific experimental process is as follows:
[0108] Table 1 Property parameters of pulverized coal
[0109] Ash %, Ad 6.51 Elemental analysis,% C daf
75.18 H daf
5.22 N daf
0.98 S daf
0.47 O daf
18.15
[0110] The low-quality heavy oils with different Kangshi residual carbon values and toluene insoluble content are taken and grouped, and the method for co-refining medium-oil coal of the present invention is adopted, wherein the pulverized coal is bit...
Embodiment 1
[0136] S1. Mix hydrogen-donating solvent oil, coal powder below 100 mesh, and Ni-Co-Mo-based oil-soluble catalyst to prepare oil-coal slurry. Mix hydrogen-donating solvent oil and coal powder at a ratio of 1:1, and add the catalyst The amount is 7.5% of the pulverized coal quality; the properties of pulverized coal are as shown in Table 1;
[0137] S2. Mix the oil-coal slurry in step S1 with hydrogen. After being preheated by the preheater, enter the suspension bed reactor. -1 , The hydrogenation reaction is carried out under the condition of hydrogen oil volume ratio of 1500:1;
[0138] S3. The reaction product in step S2 is separated into hot high-separation gas G1 and hot high-separation oil O1 through a hot high-pressure separator; wherein, the temperature of the hot high-pressure separator is 390° C.;
[0139] S4, hot high-fraction oil O1 enters the vacuum distillation tower after decompression and carries out fractionation, separates light oil, middle oil and the solid ...
Embodiment 2
[0151] S1. Mix hydrogen-donating solvent oil, coal powder below 100 mesh, and Ni-Co-Mo-based oil-soluble catalyst to prepare oil-coal slurry. Mix hydrogen-donating solvent oil and coal powder at a ratio of 1:1, and add the catalyst The amount is 7.5% of the pulverized coal quality; the properties of pulverized coal are as shown in Table 1;
[0152] S2. Mix the oil-coal slurry in step S1 with hydrogen. After being preheated by the preheater, enter the suspension bed reactor. -1 , The hydrogenation reaction is carried out under the condition of hydrogen oil volume ratio of 1500:1;
[0153] S3. The reaction product in step S2 is separated into hot high-separation gas G1 and hot high-separation oil O1 through a hot high-pressure separator; wherein, the temperature of the hot high-pressure separator is 390° C.;
[0154] S4, hot high-fraction oil O1 enters the vacuum distillation tower after decompression and carries out fractionation, separates light oil, middle oil and the solid ...
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