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Phenolic substance extraction device and method for extracting phenolic substance

A technology of phenolic substances and extraction equipment, which is applied in the field of phenolic substance extraction equipment, can solve the problems such as the inability to effectively extract unit phenols and polyphenols, and achieve the effect of recycling and reducing the content of phenols

Active Publication Date: 2019-02-26
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a device for extracting phenolic substances and a method for extracting phenolic substances, so as to solve the problem that unit phenols and polyphenols cannot be effectively extracted at the same time in the prior art

Method used

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  • Phenolic substance extraction device and method for extracting phenolic substance

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Embodiment 1

[0056] The phenolic substance extraction device provided in this embodiment is such as figure 1 As shown, the unit phenol extraction unit 110 includes three unit phenol extraction sections, and the polyphenol extraction unit 120 includes three polyphenol extraction sections, a first connecting pipe and a first liquid inlet of the unit phenol extraction section close to the first connecting pipe. The phenolic substance extraction device is used to extract high-concentration phenol-containing wastewater produced by low-temperature carbonization of coal. The discharge amount of phenol-containing wastewater is 60t / h, total phenols are 15000mg / L, and unit phenols are 7700mg / L, containing multiple Phenol is 7300mg / L, the pressure is 0.4MPa, and the temperature is 40℃. The extraction method includes the following steps:

[0057] a. Pass the above-mentioned phenol-containing wastewater through the first connecting pipe to the top of the first unit phenol extraction section. The diethyl p...

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Abstract

The invention provides a phenolic substance extraction device and method. The phenolic substance extraction device comprises a two-item filling type extractor, a first separation tower, a DIPE storage pot, a second separation tower and a MIBK storage pot. The two-item filling type extractor comprises a monophenol extraction unit and a polyphenol extraction unit. The monophenol extraction unit comprises multiple monophenol extraction intervals which are made communicated in sequence. The polyphenol extraction unit comprises multiple polyphenol extraction intervals which are made communicated in sequence. The two-item filling type extractor further comprises a first communication pipe and a second communication pipe. The first communication pipe, the multiple monophenol extraction intervals, the multiple polyphenol extraction intervals ad the second communication pipe are sequentially made communicated. Accordingly, monophenol and polyphenol in phenolic wastewater are extracted, the phenol content in the monophenol and polyphenol in the phenolic wastewater is effectively reduced according to the water intake quantity and water quality of the phenolic wastewater, and the phenol content can meet the requirements of a downstream sewage biochemical treatment device.

Description

Technical field [0001] The present invention relates to the field of petrochemical technology, in particular to a phenolic substance extraction device and a phenolic substance extraction method. Background technique [0002] The phenolic substances in phenol-containing wastewater include unit phenols and polyphenols. The degree of extraction of phenolic substances is the technical bottleneck that restricts whether downstream sewage biochemical treatment devices can meet discharge standards or reuse water. [0003] At present, the proportions of monophenols and polyphenols in the phenol-containing wastewater produced by coal liquefaction, coal gasification and coal coking are different, and the selected extractant is different: the monophenols account for 70-80% of the total phenol content. Diethyl propyl ether (DIPE) is usually used as the phenol extractant of the extraction unit for phenol-containing wastewater. While the monophenol is extracted, a small amount of polyphenols will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/04C02F1/26C02F101/34
CPCB01D11/04C02F1/26C02F2101/345
Inventor 苏志强徐志新范树军
Owner CHNA ENERGY INVESTMENT CORP LTD
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