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Hydro-conversion integration method for high-nitrogen high-arene oil

A technology of hydroconversion and high aromatics, which is applied in the treatment of hydrocarbon oil, hydroprocessing technology, petroleum industry, etc., and can solve problems such as unreported technical solutions

Inactive Publication Date: 2011-08-17
何巨堂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] Technical scheme of the present invention has no report

Method used

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  • Hydro-conversion integration method for high-nitrogen high-arene oil
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  • Hydro-conversion integration method for high-nitrogen high-arene oil

Examples

Experimental program
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Effect test

Embodiment 1

[0151] The annual start-up of the device is calculated as 8000 hours / year.

[0152] In the second hydrogenation reaction process, the hydrocarbon feedstock F2 is medium-temperature coal tar distillate oil with a boiling range of 165-505°C, the sulfur content of F2 is 0.65% by weight, the nitrogen content is 0.87% by weight, and the flow rate of F2 is 62.5t / h. Hydrogen process raw material hydrocarbon unit hydrogen consumption (including dissolved hydrogen) is 6.25% (43430Nm 3 / h). The F2 hydrocracking process adopts a two-stage processing process. The first stage is a hydro-upgrading process, and the second stage is a "heavy diesel oil + wax oil" (hydro-upgraded wax oil with a conventional boiling point between 350-505°C). Hydrogen cracking process. The hydrogenation reaction conditions of the first-stage hydrogenation upgrading process are: high-pressure conditions with a temperature of 320-400°C and a pressure of 16.0-18.0MPa, and the hydrogen volume at the inlet of the fi...

Embodiment 2

[0164] The annual start-up of the device is calculated as 8000 hours / year.

[0165] The second hydroconversion section is basically the same as in Example 1. In the second hydrogenation reaction process, the hydrocarbon raw material F2 is a medium-temperature coal tar distillate oil with a boiling range of 165-505°C. The F2 hydrocracking process adopts a two-stage processing process. It is a hydrocracking process of "heavy diesel oil + wax oil" (hydromodified wax oil with conventional boiling point between 335-505°C).

[0166] The diesel oil conversion product with a boiling point between 170 and 335°C generated in the first-stage hydro-upgrading process is used as the first hydrocarbon feedstock F1 and enters the first reaction part to form a two-stage coal tar hydrogenation combined process.

[0167] The first hydrocarbon material F processed in the first reaction part is the narrow-cut diesel oil in the fractionation part of the second reaction effluent, the narrow-cut die...

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Abstract

The invention discloses a hydro-conversion integration method for high-nitrogen high-arene oil, being suitable for a hydro-conversion process of coal tar. The method comprises the following steps: separating a first reaction effluent E1 which is obtained from novel hydrogen FH and first hydrocarbon raw material F1 (coal tar hydro-upgraded diesel) on a first reaction part into a first high pressure hydrogen-enriched gas V1 and a first high pressure hydrocarbon liquid L1 on a first high pressure separation part S1; and feeding at least a part of V1 into a second reaction part R2 for processing a second hydrocarbon raw material F2 (coal tar), and separating a second reaction effluent E2 into a second high pressure hydrogen-enriched gas V2 and a second high pressure hydrocarbon liquid L2 on a second high pressure separation part S2, wherein diesel fraction obtained by separating the second high pressure hydrocarbon liquid L2 is used as the first hydrocarbon raw material F1. The method is especially suitable for the process of producing the diesel by intermediate-low temperature coal tar, has the obvious effects of saving high pressure operation steps (compressors, heating furnaces and the like), reducing energy consumption, lowering hydrogen, improving the yield of the diesel and the like.

Description

technical field [0001] The present invention relates to an integrated method for hydrogenation conversion of high-nitrogen and high-aromatic hydrocarbon oil; in particular, the present invention relates to an integrated method for the further hydrogenation and upgrading process of diesel oil obtained by hydrogenation and upgrading of coal tar by using a new hydrogen stream; more particularly Specifically, the present invention relates to an integrated method for the further hydro-upgrading process of diesel oil obtained by using a new hydrogen stream to complete the hydro-upgrading of medium-low temperature coal tar. Background technique [0002] As we all know, the hydrocarbon hydroconversion process is a hydrogen-consuming conversion process of hydrocarbon feedstock in the presence of hydrogen. The hydrocarbon feedstock can be hydrocarbons from petroleum or oil shale or oil sands or coal. The fractions of feedstock hydrocarbons range from gasoline, From kerosene, diesel oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/02
Inventor 何巨堂
Owner 何巨堂
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