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Acetylene gas purification device in 1.4 butanediol production process and process thereof

A production process and purification device technology, applied in the field of acetylene gas purification devices, can solve the problems of high processing cost, pollution, destruction of copper-bismuth catalyst, etc., and achieve the effects of reducing cost expenditure, reducing floor space and simplifying process

Pending Publication Date: 2022-08-05
河南能源化工集团鹤壁煤化工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, excessive content of compounds such as sulfur and phosphorus will damage the copper-bismuth catalyst and affect the effectiveness of acetylene gas purification
Moreover, in this process, the processing cost is relatively high
[0004] In the 1.4 butanediol (BDO) refined acetylene gas production industry, waste sulfuric acid treatment is a common phenomenon that is most troubled by enterprises. During the waste sulfuric acid treatment, a large amount of biochemical pollution will be generated, which will affect the working environment and safety of operators. Environmentally friendly emissions

Method used

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  • Acetylene gas purification device in 1.4 butanediol production process and process thereof
  • Acetylene gas purification device in 1.4 butanediol production process and process thereof

Examples

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Embodiment 1

[0021] like figure 1 Shown, a kind of acetylene gas purification device in a 1.4 butanediol production process, comprising a low temperature water washing tower 1 connected by a pipeline with an inlet pipe of acetylene gas, a sodium hypochlorite tower 2 connected by a pipeline with the outlet of the low temperature water washing tower 1, and The air outlet of the sodium hypochlorite tower 2 is connected with the alkali tower 3 by the pipeline, the air outlet of the alkali tower 3 is connected with the compression reaction system of the acetylene gas, and the liquid inlet and the waste liquid discharge port of the sodium hypochlorite tower 2 are respectively connected with the liquid supply mechanism and the waste liquid through the pipeline. Liquid collection mechanism connection. The liquid supply mechanism includes a preparation tank for disposing sodium hypochlorite, a placement tank for containing sodium hypochlorite, and the placement tank is connected with the liquid inl...

Embodiment 2

[0025] A process for purifying acetylene gas in 1.4 butanediol production process, comprising the following steps, step 1: crude acetylene gas is supplied into an acetylene gas purification unit from an acetylene gas tank, and the crude acetylene gas is first pressurized by an acetylene inlet compressor, Then enter the low temperature washing tower 1 through the acetylene inlet pipe, in the low temperature washing tower 1, the crude acetylene gas is in countercurrent contact with the process water in the low temperature washing tower 1; The cooler uses chilled water to cool the low-temperature ethylene glycol of the cooler to maintain the low-temperature ethylene glycol temperature at 8±2°C, so that the temperature of the water in the low-temperature washing tower 1 is relatively low.

[0026] Step 2: The acetylene gas enters the sodium hypochlorite column 2 after being washed by the low-temperature water washing tower in step 1. In the sodium hypochlorite column 2, the acetyle...

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Abstract

The invention discloses an acetylene gas purification device in a 1.4 butanediol production process and a process thereof. After a sodium hypochlorite purification process for crude acetylene gas in the 1.4 butanediol (BDO) production process is modified and a process treatment method is perfected, the process can be effectively simplified, and the cost expenditure of equipment and projects is reduced; and the waste liquid treatment cost in industrial production and the occupied area of equipment are reduced, the innovative requirement of acetylene gas purification process treatment in a 1, 4-butanediol (BDO) production process is met, and the environment-friendly and safe production purpose is achieved.

Description

technical field [0001] The invention relates to the technical field of chemical processes, in particular to an acetylene gas purification device and a process thereof in a 1.4-butanediol production process. Background technique [0002] In the operation and development of the industrial industry, 1.4-butanediol (BDO), as a relatively important chemical raw material, is mainly used in the production of polyurethane resin, polybutylene terephthalate and -butyl propyl ester and other products, and meets the requirements of The development needs of pharmaceutical, chemical and automotive industries. 1.4 In the production process of butanediol (BDO), there are hydrides containing sulfur and phosphorus. In order to ensure that acetylene gas meets the standards, it should be purified to promote the steady development of the industry. [0003] Through the analysis of 1.4 butanediol (BDO) production process, the purifier equipment for crude acetylene gas generally includes a water w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J4/00B01D53/52B01D53/78B01D53/46C07C7/00C07C7/148C07C11/24
CPCB01J4/001B01J4/008B01D53/52B01D53/78B01D53/46C07C7/005C07C7/14833B01D2257/553C07C11/24Y02P20/10
Inventor 郭少锋姚正强王利超魏国玉贾芳娟马胜男韩振国杨孟洋姚勇李鹏张丹丹
Owner 河南能源化工集团鹤壁煤化工有限公司
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