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Hydrogenization reforming system, hydrogenization reforming process, and aromatic products of coal liquefaction full distillate

A reforming system and whole distillate technology, which is applied in the field of aromatics products and coal liquefaction whole distillate oil hydroreforming system, can solve the problems of complex hydroreforming process, simplify the structure, improve economic benefits, and improve aromatics The effect of content

Inactive Publication Date: 2014-08-06
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to provide a hydroreforming system, process and aromatics product of coal liquefaction whole distillate oil, so as to solve the problem of complex hydroreforming process in the prior art

Method used

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  • Hydrogenization reforming system, hydrogenization reforming process, and aromatic products of coal liquefaction full distillate
  • Hydrogenization reforming system, hydrogenization reforming process, and aromatic products of coal liquefaction full distillate
  • Hydrogenization reforming system, hydrogenization reforming process, and aromatic products of coal liquefaction full distillate

Examples

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Effect test

Embodiment 1

[0059]The raw material oil is the coal liquefaction whole distillate oil obtained by the H-Coal coal liquefaction process. figure 1 The shown hydroreforming system performs hydroreforming, and the specific process is as follows:

[0060] Use the raw oil pump to mix the coal liquefied whole distillate oil and hydrogen, heat it to 300°C with an electric heater, and then enter the first hydrotreating reactor from the top for preliminary hydrofining. The reaction product flows out from the bottom of the reactor and enters the second hydrogenation reactor for deep hydrotreating to further remove heteroatoms and impurities such as sulfur and nitrogen. The process conditions of the second hydrogenation reactor are the same as those of the first hydrogenation reactor. The hydrorefined product is cooled to 54°C by the cooler, and then enters the high-pressure separator and the low-pressure separator for product flash separation, and a part of the gas at the top of the high-pressure sep...

Embodiment 2

[0063] The raw material oil is the coal liquefaction whole distillate oil obtained by the H-Coal coal liquefaction process. figure 1 The hydroreforming system shown performs hydroreforming. Wherein the first hydrogenation reactor and the second hydrogenation reactor used are ebullating bed reactors, the first reforming semi-regenerative reactor, the second reforming semi-regenerative reactor, the third reforming semi-regenerative reactor and the second The four reforming semi-regenerative reactors are all fixed-bed semi-regenerative reactors.

Embodiment 3

[0065] The raw material oil is the coal liquefaction whole distillate oil obtained by the H-Coal coal liquefaction process. figure 1 The hydroreforming system shown performs hydroreforming. Wherein the first hydrogenation reactor used is an ebullating bed reactor; the second hydrogenation reactor is a fixed bed reactor, the first reforming semi-regenerating reactor, the second reforming semi-regenerating reactor, the third reforming semi-regenerating reactor Both the regenerative reactor and the fourth reforming semi-regenerative reactor are fluidized bed semi-regenerative reactors.

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Abstract

The invention provides a hydrogenization reforming system, a hydrogenization reforming process, and aromatic products of coal liquefaction full distillate. The hydrogenization reforming system comprises a hydrorefining unit which comprises a first hydrogenation reactor, a first fractionation device which is communicated with the first hydrogenation reactor and used for fractionizing the hydrorefining product fractionation into petroleum naphtha fraction, intermediate distillate and heavy distillate, a catalytic reforming unit which comprises a catalytic reforming reactor, is communicated with the first fractionation device, and is used for performing catalytic reforming for the petroleum naphtha fraction, wherein only one fractionation treatment for the hydrorefining products is conducted by the hydrogenization reforming system. The hydrogenization reforming system fully utilizes the characteristics that the coal liquefaction full distillate is rich in aromatics, cyclane, and hetero-atom compound, obtains petroleum naphtha with high aromatic potential content via only one time of fractionation by performing deep hydrorefining, lowering sulphur, nitrogen and other hetero-atom contents on the coal liquefaction full distillate, simplifies the structure of hydrotreating unit, and increases aromatic content in the reformed products.

Description

technical field [0001] The invention relates to the field of coal liquefied oil processing, in particular to a hydroreforming system, process and aromatic products of coal liquefied full distillate oil. Background technique [0002] Coal direct liquefied oil is produced from coal, and retains some characteristics of coal. It is rich in a large amount of aromatics, naphthenes and heteroatom compounds, and its composition and properties are quite different from those of conventional petroleum components. At present, it is generally believed that the naphtha fraction obtained by hydrotreating synthetic crude oil from coal to remove impurities and heteroatoms is an ideal reforming raw material. However, coal liquefied naphtha contains more heteroatoms (especially nitrogen atoms) such as sulfur, nitrogen, and oxygen, which must be removed through very harsh hydrogenation. Petroleum-based Ni-Mo, Co-Mo, Ni-W Type catalysts and harsher conditions than petroleum hydrogenation can re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/02
Inventor 李导李克健杨葛灵章序文李永伦高山松
Owner CHNA ENERGY INVESTMENT CORP LTD
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