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Side feed distributor and methanol to propylene reactor including same

A feed distributor and sideline technology, applied in chemical instruments and methods, hydrocarbon production from oxygen-containing organic compounds, organic chemistry, etc., can solve the problems of liquid nozzle residue, wear, nozzle blockage, etc., to simplify the structure, solve the The effect of cracking expansion joints and improving uniformity

Active Publication Date: 2021-11-23
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the liquid-phase reactant has a high probability of particulate matter compared to the gas-phase reactant, it is easy to cause residue at the liquid-phase nozzle 202 after long-term use, which easily leads to nozzle clogging and wear, and affects atomization. Effect

Method used

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  • Side feed distributor and methanol to propylene reactor including same
  • Side feed distributor and methanol to propylene reactor including same
  • Side feed distributor and methanol to propylene reactor including same

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0036] This embodiment provides a side feed distributor, such as image 3 As shown, it includes a gas phase pipe 301 and a nozzle 303, wherein the gas phase pipe 301 can include multiple sections, and the gas phase pipes 301 at two adjacent ends are connected by joints 302, and the connection method can be direct welding or threaded connection. On the gas phase pipe 301 A nozzle joint 304 is formed, and the nozzle 303 is directly welded or screwed to the nozzle joint 304 . For example, a threaded through hole can be directly formed on the joint 302, and the thread at one end of the joint 302 facing the gas phase pipe on the left side matches the external thread formed on the gas phase pipe on the left side, and the gas phase pipe facing the right side on the joint 302 One end of the thread matches the external thread formed on the gas phase tube on the right. Similarly, an internal thread is formed on the nozzle joint 304, and an external thread is formed on the nozzle, and t...

Embodiment 2

[0047] This embodiment provides a methanol-to-propylene reactor, including the side feed distributor described in any of the above schemes. During specific installation, the above-mentioned feeder is installed above the catalyst bed in the reactor to lower the temperature of the bed.

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Abstract

The invention provides a side feed distributor and a methanol-to-propylene reactor including the same. The side feed distributor includes: a gas phase pipe having a hollow structure suitable for conveying gas phase materials; nozzles arranged at intervals in the gas phase pipe On the wall, it includes a cylinder and a panel; the cylinder includes a connected first pipe section and a second pipe section, the first pipe section is a hollow cylinder, and the second pipe section is a hollow cone; the first opening of the hollow cone is used as the air intake of the nozzle The mouth is connected with the hollow structure, the first opening is an opening with a smaller diameter; the first opening of the first pipe section is connected with the second opening of the hollow vertebral body, the second opening of the first pipe section is provided with a bottom plate, and there are multiple openings on the bottom plate. There are two air outlets; the panel is arranged in the first pipe section, and a plurality of through holes are opened on it; the panel is connected with the bottom plate through elastic expansion parts. Through the above-mentioned structural design, the side feed distributor effectively solves the problems of cracking of the expansion joint of the gas-liquid mixing feeder and blockage of the channel by impurities entrained in the liquid phase material in the prior art.

Description

technical field [0001] The invention relates to the technical field of equipment application in natural gas chemical industry and coal chemical industry, in particular to a side feed distributor and a methanol-to-propylene reactor including the same. Background technique [0002] During the operation of the methanol-to-propylene (MTP) reactor, the service life of the catalyst and the yield of propylene are not only related to the physical and chemical properties of the catalyst, but also affected by the distribution of cold-hot reactants in the reactor. The MTP reactor adopts a multi-stage quenching fixed bed, and a side feed distributor is installed between each bed layer, and the cold-hot reaction materials are distributed through the distributor through the atomizing nozzle. [0003] In the prior art, the structure of the side feed distributor is a gas-liquid external mixing type, such as figure 1 As shown, it specifically includes a liquid phase pipe 102 , a gas phase p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02C07C1/20C07C11/06
CPCB01J8/0278C07C1/20C07C11/06
Inventor 焦洪桥王林齐静关翀刘瑞华雍晓静金政伟张安贵袁炜
Owner CHNA ENERGY INVESTMENT CORP LTD