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Purification additives used in coal chemical production and its application in coal chemical production

A coal chemical and additive technology, applied in the field of purification additives in coal chemical production, can solve the problems of increasing the heat consumption of the distillation system, reducing equipment production capacity, safety accidents, etc., to reduce the water content of oil products, reduce viscosity, increase yield effect

Active Publication Date: 2016-05-04
张征北
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the blockage of the tray, the heat consumption of the distillation system will be greatly increased, the production capacity of the equipment will be reduced, the equipment will be corroded, and even the high pressure of the equipment will be easily caused, leading to major safety accidents and other problems.

Method used

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  • Purification additives used in coal chemical production and its application in coal chemical production
  • Purification additives used in coal chemical production and its application in coal chemical production
  • Purification additives used in coal chemical production and its application in coal chemical production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～9

[0034] Mix oleylamine polyoxyethylene ether with fatty primary amine, in which oleylamine polyoxyethylene ether is oleylamine polyoxyethylene ether 5-20EO, see Table 1 for specific raw material parts.

[0035] Table 1

[0036]

[0037] Performance tests were carried out on the purification aids prepared in Examples 1 to 9, wherein the specific gravity and viscosity were tested under standard atmospheric pressure and a temperature of 15.6° C. The specific test results are shown in Table 2.

[0038] Table 2

[0039]

[0040] The following test further demonstrates that the purification aid prepared by the present invention has a better separation and removal effect.

Embodiment 10

[0042] In the production process of the gas-making workshop of China Coal Longhua Harbin Coal Chemical Co., Ltd., the purification aid in Example 1 of the present invention was added to the recycling system to purify the phenolic water. The specific process is as follows: the crude gas from the gas plant comes out of the gas outlet and enters the phenol water recycling system of high temperature phenol water spraying through the circulating water pump. At the mouth, use a high-pressure metering pump to add the purification aid to the phenol water recovery circulation system in an increasing manner. The specific addition method is as follows:

[0043] First, add purification aids accounting for 3ppm of phenol water circulation in the recovery circulation system to the recycling system and keep for 15 days; secondly, add purification aids accounting for 5ppm of phenol water circulation in the recovery circulation system to the recovery circulation system and keep for 30 days Day...

Embodiment 11

[0046] The operating steps and method are the same as in Example 10, except that the cleaning aid prepared in Example 3 is used in Example 11, and the content of the added cleaning aid is different, as follows:

[0047] In the production process of the gas-making workshop of China Coal Longhua Harbin Coal Chemical Co., Ltd., the purification aid in Example 3 of the present invention was added to the recycling system to purify the phenolic water. The specific process is as follows: the crude gas from the gas plant comes out of the gas outlet and enters the phenol water recycling system of high temperature phenol water spraying through the circulating water pump. At the mouth, use a high-pressure metering pump to add the purification aid to the phenol water recovery circulation system in an increasing manner. The specific addition method is as follows:

[0048] S1, add to the recycling system a purification aid accounting for 1ppm of the phenolic water circulation in the recycli...

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Abstract

The invention discloses a purification assistant for coal chemical industry production and application of the purification assistant in the coal chemical industry production. The purification assistant for the coal chemical industry production comprises the following components in parts by weight: 90-99 parts of ethoxylated oleamine and 1-5 parts of fatty amine. The purification assistant has the beneficial effects that (1) the content of suspended solids in ammonium hydroxide and phenol are greatly reduced, therefore the separation effects of coal tar and coal cinder in the ammonium hydroxide and phenol are preferable, consequently, the loss of the coal tar is reduced and the yield of the coal tar is increased; (2) the water content in the coal tar is reduced; (3) a great number of sediments such as oil slag in each tank body and an evaporator tank heat-exchanging system are cleaned, the blockage phenomenon is avoided, the system cleaning frequency is reduced, and the service life of equipment is prolonged; and (4) the COD (chemical oxygen demand) and phenol content in gasification wastewater are reduced, and raw coke oven gas is cleaned at the same time. Therefore, the purification assistant provided by the invention is a high-efficiency product capable of reducing viscosity of coal tar and reducing water content of an oil product.

Description

technical field [0001] The invention relates to the field of coal chemical production, in particular to a purification aid for coal chemical production and its application in coal chemical production. Background technique [0002] In the coal chemical production industry, the separation degree of coal tar suspended in ammonia water and phenol water is an important indicator of concern in the production of gas plants and coking plant chemical production workshops of coal chemical enterprises. If the separation effect of coal tar in ammonia water or phenol water is not good, it will not only affect the output of coal tar in the liquid product separation system, but also affect the recovery system of ammonia water and phenol water, resulting in fouling and blockage of the tray in the recovery system, increasing the cleaning The maintenance cost of the tower tray makes the production can not be carried out continuously, which increases the input of production cost. In addition,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/05
Inventor 张征北
Owner 张征北
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