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Production device and process for preparing engine coolant from coal-based ethylene glycol waste

A technology of engine coolant and coal-to-ethylene glycol, which is applied in the direction of heat exchange materials, chemical instruments and methods, can solve the problem of high cost, and achieve the effect of convenient operation and flexible design

Active Publication Date: 2016-08-24
安阳化学工业集团有限责任公司
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  • Application Information

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Problems solved by technology

The current engine coolant is mainly ethylene glycol type, ethylene glycol is made of petroleum, and the cost is relatively high

Method used

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  • Production device and process for preparing engine coolant from coal-based ethylene glycol waste

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Embodiment Construction

[0012] see figure 1 , the light removal tower is 1, the waste material input pipeline is 2, the light removal tower reboiler is 3, the light removal tower top pipeline is 4, the light removal tower bottom pipeline is 5, and the primary distillation tower bottom discharge pipeline 6, 7 for the first rectification tower, 8 for the reboiler of the first rectification tower, 9 for the liquid storage tank, 10 for the second rectification tower, 11 for the condenser of the second rectification tower, 11 for the second rectification tower The tower reflux tank is 12, the primary rectification tower condenser is 13, the secondary rectification tower reboiler is 14, the stirred tank is 15, the primary rectification tower overhead pipeline is 16, and the secondary rectification tower bottom The pipeline is 17, the discharge pipeline is 18, the primary rectification tower storage tank is 19, the first valve is 20, the second valve is 21, the first pipeline is 22, the discharge pipe of th...

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Abstract

The invention relates to the technical field of engine liquid coolant production apparatus, and concretely relates to a production apparatus for preparing engine liquid coolant from coal glycol waste material. The invention comprises a lightness-removing column, a first stage rectifying tower, a second stage rectifying tower and a stirred tank, and according to different coal glycol waste material compositions, all or partial apparatus are started with agility design and convenient operation.

Description

technical field [0001] The invention relates to the technical field of an engine coolant production device and a process thereof, in particular to a production device and a process for preparing an engine coolant from waste coal-based ethylene glycol. Background technique [0002] In recent years, with the maturity of coal-to-ethylene glycol technology, a large number of coal-to-ethylene glycol enterprises have been built in China. According to statistics, my country's coal-to-ethylene glycol production capacity will reach more than 5 million tons in the next few years. In the coal-to-ethylene glycol production process, about 10% of the ethylene glycol waste will be produced, and these so-called wastes are often sold to some companies at a lower price and used as fuel, resulting in a great waste of resources. However, these waste materials contain a large amount of polyols such as ethylene glycol and 1,2-butanediol, and polyols are excellent raw materials for engine coolant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/20
Inventor 高恒荆民哲刘宏建李长峰王柯许耀辉黄振振王少锋闫振华李云李莉刘涛
Owner 安阳化学工业集团有限责任公司