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Method for quenching pyrolysis products

A technology for pyrolysis products and quenching, which is used in the processing of gas mixtures, hydrocarbon oil treatment products, non-catalytic thermal cracking, etc. It can solve the problems of increasing compressor inlets, reducing the selectivity of pyrolysis reactions, and increasing the amount of coke produced. , to increase the output, improve the pressure difference, and improve the process stability.

Active Publication Date: 2022-03-11
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as the pressure at the outlet of the calciner increases, the selectivity of the pyrolysis reaction decreases, thereby reducing the product yield and increasing the amount of coke produced, therefore, there is a limit to keeping the pressure at the outlet of the calciner below a certain level, And therefore, there is also a limit to increasing the pressure at the compressor inlet

Method used

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  • Method for quenching pyrolysis products
  • Method for quenching pyrolysis products
  • Method for quenching pyrolysis products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] for figure 1 The flow chart shown, the process was simulated using the Aspen Plus simulator available from Aspen Technology, Inc., and the pressures at the various stream locations are shown in Table 1. Pressures are expressed as absolute pressure (bar (a)), which is obtained by adding atmospheric pressure to gauge pressure (bar (g)).

[0068] Here, naphtha F1, recycled hydrocarbon compound F2, and propane F3 were used as feeds, and the respective feeds F1, F2, and F3 were fed at 232,000 kg / hr (F1), 45,500 kg / hr (F2) and A flow rate of 116,000 kg / hr (F3) was supplied to the liquid decomposition furnace 10 , the first gas decomposition furnace 20 and the second gas decomposition furnace 30 .

[0069] [Table 1]

[0070]

Embodiment 2

[0077] for figure 1 The flow chart shown, the process was simulated using the Aspen Plus simulator available from Aspen Technologies Ltd., and the pressures at the various stream locations are shown in Table 3. Pressures are expressed as absolute pressure (bar (a)), which is obtained by adding atmospheric pressure to gauge pressure (bar (g)).

[0078] Here, naphtha F1, recycled hydrocarbon compound F2, and propane F3 were used as feeds, and the respective feeds F1, F2, and F3 were fed at 255,000 kg / hr (F1), 52,000 kg / hr (F2) and 135,000 A flow rate of kg / hr (F3) is supplied to the liquid decomposition furnace 10, the first gas decomposition furnace 20, and the second gas decomposition furnace 30, respectively.

[0079] [table 3]

[0080]

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Abstract

The application provides a method for quenching pyrolysis products, more specifically, the method for quenching pyrolysis products includes: supplying the discharge stream from the liquid decomposition furnace to the first quenching tower; The upper effluent stream of is supplied to the second quench tower; the effluent stream from the first gas decomposition furnace is supplied to the second quench tower; and the effluent stream from the second gas decomposition furnace is supplied to the second quench tower.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the benefit of priority from Korean Patent Application No. 10-2018-0098337 filed on August 23, 2018, the entire disclosure of which is incorporated herein as a part of the specification. technical field [0003] The present invention relates to a kind of method of quenching pyrolysis product, more particularly, relate to a kind of method of quenching naphtha cracking product. Background technique [0004] Naphtha is a gasoline fraction obtained in crude distillation units and is used as a feedstock for the production of petrochemical base materials such as ethylene, propylene, and benzene by pyrolysis. The process for producing products by pyrolyzing naphtha is carried out by introducing a hydrocarbon-based compound such as naphtha as a feed, pyrolyzing the hydrocarbon-based compound in a cracking furnace, followed by quenching, compression and refining Pyrolysis products. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G9/00
CPCC10G9/002C10G2300/4012C10G2400/20C10G2300/1081C10G2300/1044C10G70/043C10G70/06C10G51/06C10G51/023C10G2300/4081C10G2300/1092C10G2400/28
Inventor 金仁燮李硕九李成圭金台雨申俊浩
Owner LG CHEM LTD
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