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Preparation method for treating and recycling coal tar hydrogenation wastewater

A technology for wastewater treatment and coal tar, which is applied in heating water/sewage treatment, ammonia preparation/separation, degassed water/sewage treatment, etc. The effect of less land occupation, easy operation of oil collection or sludge discharge, and high utilization rate of facilities

Pending Publication Date: 2021-11-19
鄯善万顺发新能源科技有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] First, most of the existing coal tar hydrogenation wastewater treatment equipment treats the oil and acid in the wastewater together, resulting in poor treatment performance;
[0005] Second, most of the existing coal tar hydrogenation wastewater treatment equipment does not have the recovery function, resulting in a waste of resources during the treatment process

Method used

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  • Preparation method for treating and recycling coal tar hydrogenation wastewater

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Embodiment Construction

[0019] The preparation method for treating and recycling coal tar hydrogenation wastewater comprises the following steps:

[0020] S1: Deoiling treatment of coal tar hydrogenation wastewater;

[0021] (1). Discharge the oil-containing wastewater into the sewage treatment pool for centralized treatment;

[0022] (2). Prepare treatment and purification equipment: sewage regulating tank. The sewage regulating tank is divided into an outer tank and an inner tank. The sewage regulating tank is equipped with a chamber for a hydrocyclone separation area and a sedimentation separation area, and the sedimentation separation The chamber of the zone is an inner tank, and the inner tank is equipped with a hydrocyclone, an automatic oil skimmer and a settling cone, and is connected through the hydrocyclone, the automatic oil skimmer and the settling cone in the inner tank. into a complete system, and then through the siphon connecting pipes of the inner and outer tanks, the peripheral wat...

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Abstract

The invention provides a preparation method for treating and recycling coal tar hydrogenation wastewater. The preparation method for treating and recycling the coal tar hydrogenation wastewater comprises the steps of S1, deoiling the coal tar hydrogenation wastewater; (1) discharging oil-containing wastewater into a sewage treatment tank for centralized treatment; and (2) preparing treatment and purification equipment, namely, a sewage adjusting tank, wherein the sewage adjusting tank is divided into an outer tank and an inner tank, the sewage adjusting tank is internally provided with a cavity of a hydraulic cyclone separation area and a cavity of a precipitation separation area, and the cavity of the precipitation separation area is the inner tank. The preparation method for treating and recycling the coal tar hydrogenation wastewater, provided by the invention, has the advantages that the operation is simple, oil and acid in the wastewater can be separately treated, the wastewater treatment effect can be enhanced, and part of resources can be recycled.

Description

technical field [0001] The invention belongs to the technical field of coal tar hydrogenation wastewater treatment, and in particular relates to a preparation method for coal tar hydrogenation wastewater treatment and reuse. Background technique [0002] In recent years, the technical research on producing high value-added diesel, naphtha, liquefied petroleum gas and other products by using coal tar or its fractions as raw materials through hydrogenation upgrading has received extensive attention. Although the gradual industrialization of coal tar hydrogenation technology has realized the deep processing of coal tar to a certain extent, and obtained economic benefits through the converted products, there is a certain degree of environmental pollution in the implementation of such projects . Wastewater in this process can be roughly divided into two categories: oily wastewater and acidic wastewater. The oily wastewater mainly comes from the oily wastewater produced by the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C01B17/16C01C1/02C02F101/10C02F101/16
CPCC02F9/00C01B17/165C01C1/022C01C1/026C02F2001/007C02F1/38C02F1/40C02F1/20C02F1/04C02F2101/101C02F2101/16
Inventor 许建云周青龙刘洋柳自强蔺述鹏张亚斌郭靖城李成权司维亮
Owner 鄯善万顺发新能源科技有限公司
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