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Hydroprocessing method of inferior gasoline

A low-quality gasoline and hydrotreating technology, applied in hydrotreating process, treating hydrocarbon oil, petroleum industry, etc., can solve the problem that the device cannot be operated for a long time, avoid fouling and coking, easy to operate, and effectively utilize heat energy. Effect

Active Publication Date: 2014-05-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the deficiencies of the prior art, the present invention provides a method for hydrogenation treatment of low-quality gasoline, especially for the hydrogenation treatment device of low-quality gasoline in oil refineries, to solve the problem that the device cannot operate for a long period due to fouling and coking

Method used

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  • Hydroprocessing method of inferior gasoline

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] use figure 1 The process flow shown. The properties of the raw oil used are listed in Table 2, the properties of the catalyst are listed in Table 3, and the process conditions and test results are listed in Table 4 and Table 12, respectively.

[0038] Table 2 Raw oil properties.

[0039] Oil name FCC gasoline Density, g / cm 3 0.7300 Distillation range / ℃ 36～206 Sulfur content / μg·g -1 575 Nitrogen content / μg·g -1 39 Mercaptan sulfur, μg g -1 35.4 RON 93.5

[0040] Table 3 The main composition and properties of the catalysts.

[0041] catalyst pretreatment catalyst hydrogenation catalyst Catalyst composition MoO 3 +CoO / wt% 5% 20% carrier Aluminum oxide Aluminum oxide The main properties of the catalyst Particle size, mm 0.2 — Specific surface / m 2 g -1 180 226 Pore ​​volume / mL·g -1 0.68 0.51

[0042] Table 4 Example 1 process conditions...

Embodiment 2

[0045] use figure 1 The process flow shown. The properties of the raw oil used are listed in Table 5, the properties of the catalyst are listed in Table 6, and the process conditions and test results are listed in Table 7 and Table 12, respectively.

[0046] Table 5 Raw oil properties.

[0047] Oil name Coking gasoline feedstock Density, g / cm 3 0.7413 Distillation range / ℃ 57～206 Sulfur content, μg / g 5656 Nitrogen content, μg / g 236

[0048] Table 6 Main composition and properties of catalysts.

[0049] catalyst pretreatment catalyst hydrogenation catalyst Catalyst composition MoO 3 +CoO / wt% 0 25% carrier Aluminum oxide Aluminum oxide The main properties of the catalyst Particle size, mm 0.3 — Specific surface / m 2 g -1 180 226 Pore ​​volume / mL·g -1 0.68 0.51

[0050] Table 7 Example 2 process conditions.

[0051] Process conditions data ...

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Abstract

The invention discloses a hydroprocessing method of inferior gasoline. The hydroprocessing method comprises following steps: (1) inferior gasoline raw material is mixed with heating oil and hydrogen so as to obtain a mixture, and the mixture is delivered into a boiling bed reactor for hydrogenation pretreatment; (2) a reaction effluent obtained via hydrogenation pretreatment is subjected to gas-liquid separation; (3) a gas material obtained via pretreatment is delivered into a gasoline hydrodesulfurization reactor for hydrodesulfurization, an obtained hydrogenation reaction effluent is delivered into a separator for gas-liquid separation, an obtained liquid is subjected to gas stripping, and then is taken as a gasoline product or a gasoline blending component; and (4) a liquid material obtained via pretreatment is taken as the heating oil for recycling. The hydroprocessing method is capable of prolonging running period of inferior gasoline equipment greatly.

Description

technical field [0001] The invention relates to a low-quality gasoline hydrogenation treatment method, in particular to a method for meeting the long-period production for the low-quality gasoline hydrogenation treatment device of an oil refinery. technical background [0002] In the past ten years, due to the slow growth of crude oil production and the increasingly heavy quality, the market demand for light oil products has continued to increase. Coupled with the increasingly stringent environmental protection regulations, therefore, the world pays special attention to oil upgrading technology. [0003] In recent years, my country's gasoline and diesel products have been upgraded rapidly, especially the quality requirements for gasoline products are more stringent. At present, the proportion of secondary processing oil in gasoline components in my country is relatively high, such as catalytic cracking gasoline, coking gasoline and pyrolytic gasoline. Among the properties ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/00
Inventor 陈光吴子明陈琳石友良曾榕辉黄新露
Owner CHINA PETROLEUM & CHEM CORP
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