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Isopropylbenzene refining process

A technology of process flow and cumene, applied in the direction of chemical process analysis/design, biological neural network model, calculation model, etc., can solve the problems of high energy consumption and low purity, and achieve the purpose of improving purity, saving consumption, and convenient double effect The effect of distillation heat transfer

Active Publication Date: 2021-01-22
WANHUA CHEM GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a cumene product refining process to solve the problems of low purity and high energy consumption in the cumene product preparation process in the prior art

Method used

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  • Isopropylbenzene refining process
  • Isopropylbenzene refining process
  • Isopropylbenzene refining process

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Embodiment Construction

[0047] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the simplified description of the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation or a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Wherein, the terms "first position" and "second position" are two diff...

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PUM

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Abstract

The invention provides an isopropylbenzene product refining process. The isopropylbenzene product refining process comprises the following steps of (1) conveying a product from an alkylation reactor and a product from an alkylation transfer reactor to a raw material mixer for mixing to obtain a mixed feed, (2) conveying the mixed feed to a high-pressure heavy component removal tower, conveying a tower top produced material of the high-pressure heavy component removal tower to a light component removal tower, and conveying a tower bottom produced material of the high-pressure heavy component removal tower to a low-pressure heavy component removal tower, (3) feeding the isopropylbenzene product, which is a tower kettle produced material of the light component removal tower, into a product tank, and (4) enabling a tower kettle produced material of the low-pressure heavy component removal tower to be a heavy component containing polyisopropylbenzene, and a tower top produced material of the low-pressure heavy component removal tower to be an isopropylbenzene product and be fed into a product tank. According to the scheme, the purity of the isopropylbenzene product can be improved through three-tower rectification separation, the heavy component removal tower is divided into the high-pressure tower and the low-pressure tower, double-effect rectification heat exchange can be conveniently carried out, and consumption of public engineering is reduced.

Description

technical field [0001] The invention relates to the technical field of chemical product preparation technology, in particular to a process flow for refining cumene products. Background technique [0002] Cumene is an important raw material for phenol and acetone. In industry, propylene and benzene are mostly used as raw materials, and solid phosphoric acid SPA is used as a catalyst to react to obtain crude cumene, which is then refined to obtain cumene products, that is, the UOP method. In this process, the refining process uses a two-tower model. First, the by-product benzene is obtained through the de-light tower, and then the product cumene and heavy components are obtained through the cumene de-weight tower. The energy consumption of the whole process is relatively high, and it is affected by the composition of raw materials and The impact of fluctuations in working conditions will cause fluctuations in product quality. [0003] Therefore, it is necessary to provide a m...

Claims

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Application Information

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IPC IPC(8): C07C7/04C07C15/085G06K9/62G06N3/04G06N3/08G06N20/00G16C20/10G16C20/70
CPCC07C7/005C07C7/04G16C20/10G16C20/70G06N3/08G06N20/00G06N3/045G06F18/23213C07C15/085
Inventor 李想田宇梁肖强朱文琦钱虞峰张宏科
Owner WANHUA CHEM GRP
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