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Reforming reactor and application thereof

A reforming reactor and reactor technology, applied in chemical instruments and methods, chemical/physical processes, etc., can solve the problems of large waste of head space and reduce the height of the reactor, so as to be conducive to safe operation and subsequent equipment and Pipelines, improved rational distribution, and the effect of saving energy

Active Publication Date: 2019-04-12
SHANGHAI HOTO PETROCHEM ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a side-entry and top-out continuous reforming reactor and its application in order to overcome the defects in the above-mentioned prior art. While ensuring that the reaction materials are evenly distributed above and below the catalyst bed, the height of the reactor is effectively reduced, and the problem of wasting a large amount of space at the top of the reactor is solved. The hydrogen stripping of the catalyst collection bucket and the optimization of the whereabouts of hydrogen are adjusted to adjust different reactions. H in the device 2 / HC molar ratio, fully promote the main reaction and inhibit the side reaction, reduce investment and improve economic benefits

Method used

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  • Reforming reactor and application thereof
  • Reforming reactor and application thereof

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Embodiment 1

[0058] further reference figure 1 Describe in detail.

[0059] A catalytic reforming unit for refined gasoline (distillation range 80°C-175°C) includes a reaction section and a regeneration section, the reaction section consists of a first reforming reactor R-1, a second reforming reactor R-1, and a second reforming reactor operated in series. The reactor R-2, the third reforming reactor R-3, and the final reforming reactor R-4 are composed of four reactors, and the regeneration part includes the step I of catalyst burning (two-stage burning), using Step II for oxidation with chlorine to redisperse precious metal crystallites, and step III for reduction with hydrogen before being able to reduce the catalyst before it is reintroduced into the reactor.

[0060] The reaction part is in figure 1 In the middle, the first reforming reactor R-1, the second reforming reactor R-2, the third reforming reactor R-3, and the final reforming reactor R-4 are presented in a "side-by-side" c...

Embodiment 2

[0078] A reforming reactor, its structure is as Figure 2-4 As shown, the reforming reactor used adopts a radial bed structure, including a cylinder 1 , an upper head, a lower head, and a catalyst collection hopper 13 and other components. The upper head and the lower head are respectively arranged at both ends of the cylinder body 1, and are fixedly connected with the cylinder body to form a sealed structure, and the catalyst collecting bucket 13 is located under the lower head. The upper head used is spherical or ellipsoidal, and the corresponding shape or structure can be selected arbitrarily according to the actual situation. The top is provided with a reaction product outlet 5 and a catalyst feed pipe. The end of the catalyst feed pipe located outside the cylinder body 1 is the catalyst inlet 6, and the reaction product outlet 5 communicates with the central cylinder 4. The catalyst feed pipes are evenly distributed along the circumference, and the number set in this emb...

Embodiment 3

[0090] A reforming reactor, its structure is as figure 2 As shown, the reforming reactor used adopts a radial bed structure, including a cylinder 1 , an upper head, a lower head, and a catalyst collection hopper 13 and other components. The upper head and the lower head are respectively arranged at both ends of the cylinder body 1, and are fixedly connected with the cylinder body to form a sealed structure, and the catalyst collecting bucket 13 is located under the lower head. The upper head used is spherical or ellipsoidal, and the corresponding shape or structure can be selected arbitrarily according to the actual situation. The top is provided with a reaction product outlet 5 and a catalyst feed pipe. The end of the catalyst feed pipe located outside the cylinder body 1 is the catalyst inlet 6, and the reaction product outlet 5 communicates with the central cylinder 4. The catalyst feed pipes are evenly distributed along the circumference, and the number provided in this ...

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Abstract

The invention relates to a reforming reactor and application thereof. Mixed hydrogen is subjected to subsection, lifted hydrogen and stripped hydrogen are respectively introduced in different reactors, the molar ratio of H2 to HC in the reforming reactor is reasonably adjusted, and therefore compared with the prior art, the yield of aromatic hydrocarbon and hydrogen is greatly increased. Comparedwith the prior art, the reforming reactor adopts a radial reactor structure with an inlet formed in the side and an outlet formed in the top, the height of the reactor can be effectively reduced, theproblem that the larger top space of the reactor is wasted is solved, and a center cylinder and a fanshaped cylinder can be conveniently maintained; a catalyst collecting hopper is arranged at the bottom of the reforming reactor, hydrogen is adopted for steam stripping, through steam stripping, hydrocarbon components carried by a catalyst can be obtained, the rising temperature of the catalyst isalso reduced, and the reforming reactor is beneficial for safe operation, subsequent equipment and material selection for pipelines.

Description

technical field [0001] The invention relates to the technical field of catalytic reforming, in particular to a reforming reactor and its application. Background technique [0002] The objective of the catalytic reformer is to convert naphthenes and paraffins (n-paraffins and iso-paraffins) into aromatics. The main reactions involved are naphthene dehydrogenation, alkane dehydrocyclization to aromatics and possible isomerization, while side reactions such as hydrocracking, hydrogenolysis, aromatics dealkylation and coke formation may also occur. The goal of technological development is to promote the main reaction and suppress the side reaction. [0003] At present, the continuous reforming technologies that have been industrialized in the world mainly include the technology of UOP Company of the United States and the technology of Axens Company of France. In the continuous reforming unit of UOP Company, the reaction system generally adopts overlapping reactors, and the rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/02B01J8/04
CPCB01J8/0214B01J8/0278B01J8/0285B01J8/0442
Inventor 蔡明件王丁马成国张韩
Owner SHANGHAI HOTO PETROCHEM ENG
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