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Naphtha catalytic reforming method of by-product reduction hydrogen

A catalytic reforming and naphtha technology, which is applied in the treatment of naphtha, petroleum industry, and hydrocarbon oil, etc., can solve the problems of large amount of activated carbon and low utilization rate of equipment, and overcome the problems of large amount of use and process operation. flexible effects

Active Publication Date: 2017-05-31
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, using activated carbon to remove C 2 + Hydrocarbons have the problems of large consumption of activated carbon and low utilization of equipment

Method used

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  • Naphtha catalytic reforming method of by-product reduction hydrogen
  • Naphtha catalytic reforming method of by-product reduction hydrogen
  • Naphtha catalytic reforming method of by-product reduction hydrogen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] When it is necessary to prepare hydrogen storage for reforming and reduction, it is assumed that "preparing reduced hydrogen for reforming" is carried out at the end of an operation cycle. Taking the reforming reactor 10 as an example, the reactor 10 is first cut out of the process, and the The reforming catalyst in the reactor 10 is regenerated. The remaining 3 reactors continue to carry out the reforming reaction, and the materials go through process 2.

[0046] It can be seen from Table 3 that the catalytic reforming reaction conditions of Example 1 are: weighted average temperature 484.9°C, reaction pressure 1.33MPa, volume space velocity 1.59h -1 , The volume ratio of hydrogen to oil is 1200. The resulting oil had an octane number of 93.9.

[0047] As can be seen from Table 4, after hydrogenolysis, C 2 + The hydrocarbon content was 0.06% by volume.

Embodiment 2

[0049] Material flow process is identical with embodiment 1.

[0050] It can be seen from Table 3 that the catalytic reforming reaction conditions of Example 2 are: weighted average temperature 486.6°C, reaction pressure 1.33MPa, volume space velocity 1.73h -1 , The volume ratio of hydrogen to oil is 1200. The resulting oil had an octane rating of 94.0.

[0051] As can be seen from Table 4, after hydrogenolysis, C 2 + The hydrocarbon content was 0.12% by volume.

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Abstract

The invention discloses a naphtha catalytic reforming method of by-product reduction hydrogen. When a reforming apparatus is normally operated, a random reforming reactor is cut, a platinum rhenium catalyst in the reactor is subjected to regeneration processing; then the reduced reforming catalyst has high hydrogenolysis activity, the reforming hydrogen obtained by the other reactor is processed, the contained C2<+> hydrocarbon is subjected to hydrogenolysis to carbon and methane, volume content of C2<+> in hydrogen storage is greatly reduced, and the requirement of commencement of works of the reforming catalyst is satisfied. Compared with the prior art, disadvantages of the low octane number of the gasoline obtained by catalytic reforming due to low temperature hydrogen storage, usage amount of C2<+> hydrocarbon used for active carbon adsorption, and low equipment utilization rate are overcome, and the method has the characteristic of flexible process operation.

Description

technical field [0001] The invention belongs to the field of catalytic reforming, and belongs to a semi-regenerative reforming process, especially a reduction process that meets the requirements of the platinum-rhenium reforming catalyst for the impurity content of the reducing medium while producing high-octane gasoline (or aromatics). Hydrogen catalytic reforming process. Background technique [0002] Catalytic reforming is an important production process, which is widely used in oil refining and chemical industry. In terms of oil refining, its target product is high-octane gasoline; in chemical industry, its target product is aromatics, and their by-products contain C 2 + Hydrocarbon reforming hydrogen. In recent years, with the increasing demand for high-octane gasoline and aromatics, the processing capacity of catalytic reforming units has increased year by year, of which semi-regenerative reforming units occupy an important position. [0003] The semi-regenerative ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G61/02
CPCC10G61/02C10G2300/1044C10G2300/305C10G2300/70C10G2400/02C10G2400/30
Inventor 贝耀明阮彩安陈玉琢柳伟董立廷
Owner CHINA PETROLEUM & CHEM CORP
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