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Complete equipment for extracting phenols in medium and low temperature coal tar

A technology of low-temperature coal tar and complete sets of equipment, which is applied in the direction of preparation of organic compounds, liquid solution solvent extraction, chemical instruments and methods, etc., can solve the problems of low-temperature coal tar that cannot be processed by high-temperature coal tar processing, and achieve energy saving in operation and cost, significant energy saving and emission reduction, and the effect of fine separation

Inactive Publication Date: 2014-08-27
SHAANXI COAL & CHEM TECH INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Because the composition of medium and low temperature coal tar is very different from that of high temperature coal tar, the existing high temperature coal tar processing methods, processes and equipment cannot be used to process low temperature coal tar

Method used

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  • Complete equipment for extracting phenols in medium and low temperature coal tar
  • Complete equipment for extracting phenols in medium and low temperature coal tar
  • Complete equipment for extracting phenols in medium and low temperature coal tar

Examples

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Embodiment 1

[0037] Example 1: A complete set of equipment for extracting phenol from medium and low temperature coal tar, which is composed of five kettles, four tanks and three sets of condensers; respectively is the medium and low temperature coal tar extraction and separation kettle 8; extraction light oil No. 1 extractant concentration Kettle 13; No. 1 solvent tank 17; Extraction crude phenol No. 2 extractant concentration kettle 20; No. 2 solvent tank 26; No. 3 solvent extraction and purification crude phenol kettle 29; Extraction and purification crude phenol filter tank 34; Extraction and purification of crude phenol No. 3 Extractant concentration tank 36; No. 3 solvent tank 43, No. 1 condenser 45-1, No. 2 condenser 45-2 and No. 3 condenser 45-3.

[0038] in Picture 11 In the middle and low temperature coal tar extraction and separation tank 8, the upper right discharge port 7 is connected with the upper left input port 11 of the extraction light oil No. 1 extractant concentration tan...

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Abstract

The invention relates to a complete set of equipment for separating and extracting phenols in medium and low temperature coal tar by extraction method, which belongs to the complete set of equipment for extracting low temperature coal tar. A complete set of equipment for extracting phenol from medium and low temperature coal tar, which consists of five kettles, four tanks and three sets of condensers; they are medium and low temperature coal tar extraction and separation kettle; extraction light oil No. 1 extraction agent concentration kettle; No. 1 solvent No. 2 solvent tank; No. 3 solvent extraction and refined crude phenol filter tank; extraction and refining crude phenol filter tank; extraction and refining crude phenol No. 3 extractant concentration kettle; No. 3 solvent tank and 1 Condenser No. 2, Condenser No. 3 and Condenser No. 3. It can quickly, easily, selectively and high-purity realize the fine separation of low-carbon hydrocarbons and mixed phenols from medium and low temperature coal tar under very mild conditions; the multi-stage condenser has a remarkable condensation effect, has little environmental pollution and is easy to recover and circulate Use; It is easy to realize large-scale production and low-temperature coal tar separation and conversion and other high-quality and high-value-added utilization.

Description

technical field [0001] The invention relates to a complete set of equipment for extracting low-temperature coal tar, in particular to a complete set of equipment for separating and extracting phenols in medium-low temperature coal tar by an extraction method. Background technique [0002] Medium and low temperature coal tar is a by-product of semi-coal and gas production. The content of non-hydrocarbon organic compounds in medium and low temperature coal tar is very high, especially the phenolic compounds in the acidic component, which can be as high as 10% to 30% of the total liquid. The phenolic compounds with medium and low boiling points mainly include C3 -C4 alkylphenols, naphthols and alkylnaphthols, etc. [0003] Medium and low temperature coal tar is a chemical raw material with high added value, which can be used to produce organic chemicals such as liquid fuels, phenols, alkanes and aromatics, and many important chemical intermediates can also be separated from it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/04C07C37/72
Inventor 宗志敏闵小建朱影刘双泰严立赵鹤翔孙秀花李瑶李占库赵云鹏樊星魏贤勇
Owner SHAANXI COAL & CHEM TECH INST
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