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System for recovering effective components in styrene byproduct tar

A technology for effective components and recovery systems, applied in organic chemistry, distillation purification/separation, aliphatic-aliphatic chain cracking of polyaryl-substituted aliphatic compounds to produce hydrocarbons, etc., can solve the problem of energy consumption and recovery of active components Problems such as large material loss, to achieve the effect of reducing material loss

Pending Publication Date: 2020-04-24
ANHUI HAOYUAN CHEM IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a recovery system for effective components in styrene by-product tar, which solves the problems of large energy consumption and material loss in the existing recycling of styrene tar and effective components

Method used

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  • System for recovering effective components in styrene byproduct tar
  • System for recovering effective components in styrene byproduct tar
  • System for recovering effective components in styrene byproduct tar

Examples

Experimental program
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Effect test

no. 1 example

[0039] Please refer to figure 1 ,in, figure 1 A system flow diagram of a preferred embodiment of the system for recovering effective components in the styrene by-product tar provided by the present invention. A recovery system for effective components in styrene by-product tar, including:

[0040] Distillation tower 1;

[0041] A tower top condenser 2, which is communicated with the top of the rectifying tower 1 through a transfer pipe;

[0042] A recovery tank 3, the recovery tank 3 communicates with the output end of the overhead condenser 2 through a connecting pipe, and one side of the recovery tank 3 communicates with the input end of the recovery pump 4 through a feeding pipe;

[0043] A tower still pump 5, the input end of the tower still pump 5 is communicated with the bottom end of the rectifying tower 1 through a connecting pipe;

[0044] Reboiler 6, the input end of said reboiler 6 communicates with one side of said rectifying tower 1 through connecting pipe;

...

no. 2 example

[0074] Please refer to figure 2 , image 3 with Figure 4 , Based on the system for recovering effective components in styrene by-product tar provided in the first embodiment of the present application, the second embodiment of the present application proposes another system for recovering effective components in styrene by-product tar. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0075] Specifically, the difference between the effective component recovery system used in the styrene by-product tar provided by the second embodiment of the present application is that it is used in the effective component recovery system in the styrene by-product tar, and the cracking reactor One side of 9 is communicated with a liquid inlet pipe 10, and the liquid inlet pipe 10 is provided with a rotating assembly 11, and the rotating assembly 11...

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Abstract

The invention provides a system for recovering effective components in styrene byproduct tar. The system for recovering the effective components in the styrene byproduct tar comprises a rectifying tower, a tower top condenser, a recovery tank and a tower kettle pump; the tower top condenser is communicated with the top of the rectifying tower through a conveying pipe; the recovery tank is communicated with the output end of the tower top condenser through a connecting pipe, and one side of the recovery tank is communicated with the input end of a recovery pump through a conveying pipe; the input end of the tower kettle pump is communicated with the bottom end of the rectifying tower through a connecting pipe. The system for recovering the effective components in styrene byproduct tar has amethod for preparing monomer styrene through catalytic cracking of tar negative pressure rectification coupled tower kettle circulating tar. 90% or more of effective components (styrene and polystyrene) in the styrene by-product tar can be separated, and the material loss of the styrene component in the by-product can be reduced.

Description

technical field [0001] The invention relates to the field of recovering effective components of styrene by-product tar, in particular to a system for recovering effective components in styrene by-product tar. Background technique [0002] Styrene tar is the residue produced during the distillation and purification of styrene. It generally has a high boiling point and high viscosity. The content of styrene is 10%-60%, 20% of styrene dimer (polystyrene), and the rest is in the reaction process. The heavy by-products and the polymerization inhibitor added in the rectification process. The general treatment method in the industry is to burn it as a fuel or as an industrial coating and adhesive, which does not make the styrene tar more fully and effectively utilized. With the development and application of styrene series polymer materials, the scale of styrene production is expanding day by day, and the amount of styrene tar is also increasing. Reasonable and effective use of s...

Claims

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Application Information

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IPC IPC(8): C07C7/04C07C4/24C07C15/46
CPCC07C7/04C07C4/24C07C15/46
Inventor 凡殿才高明林王卫锋刘克潮张超李超群
Owner ANHUI HAOYUAN CHEM IND GRP
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