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Production device and application method of a diesel vehicle exhaust treatment fluid

A technology for tail gas treatment and production equipment, applied in separation methods, chemical instruments and methods, mixers, etc., can solve the problems of high product transportation and storage costs, high water content, etc., to reduce transportation and storage costs, small investment, and guarantee The effect of product quality

Active Publication Date: 2018-08-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the diesel vehicle exhaust treatment fluid on the market is basically refilled in the gas station, which requires a certain amount of product to be stored in the gas station. However, since the diesel vehicle exhaust treatment fluid is a liquid product with high water content, the product High transportation and storage costs

Method used

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  • Production device and application method of a diesel vehicle exhaust treatment fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation of the diesel vehicle tail gas treatment liquid of the present invention is to dissolve high-purity urea in ultra-pure water to prepare a urea aqueous solution with a mass concentration of 31.8-33.3%, and perform intermittent operations.

[0024] After the municipal tap water is purified into ultrapure water by the ultrapure water device 3, it is divided into two streams, one of which enters the solar heating equipment 11 through the regulating valve E to heat up, and the other directly enters the preparation kettle 4 through the regulating valve F, and the preparation kettle 4 (volume 40L) is equipped with temperature control, when the temperature of the ultrapure water in the preparation kettle 4 is higher than 30°C, reduce the opening of the regulating valve E and increase the opening of the regulating valve F. When the quality of the ultrapure water added in each batch is 26kg according to the statistics of the flow meter, the regulating valves E and ...

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PUM

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Abstract

The invention provides a production apparatus and usage method of diesel vehicle exhaust treatment fluid. The apparatus comprises the following components: a bunker of high purity urea, a metering tank, an ultrapure water apparatus, a preparation kettle, a stirring and heating device, a buffer tank, an on-line quality analyzer, a membrane filtration apparatus, a product pot, a product pump, and connecting pipelines. The treatment fluid product is obtained by the following processes: metering, preparation, refining, etc. The apparatus is a set of integrated system which can be arranged in a gas station, and has the advantages of few land occupation, low investment, and flexible production; range limitation of production and sale of the diesel vehicle exhaust treatment fluid is solved, the product can be produced when the product is needed, so that the costs of production, transport and storage are reduced.

Description

technical field [0001] The invention relates to a diesel vehicle tail gas treatment liquid, more specifically, to a production device and a use method of the diesel vehicle tail gas treatment liquid suitable for use in gas stations. Background technique [0002] According to the regulations of the national environmental protection department, all heavy-duty diesel vehicles sold from July 1, 2013 must meet the National IV emission standards. Compared with the National III emission standards, the National IV emission nitrogen oxides (NOx) of heavy-duty diesel vehicles are reduced. by about 30%, and particulate matter (PM) emissions by more than 80%. In order to reduce the nitrogen oxides and particulate matter in the exhaust emissions of diesel vehicles, at present, automobile manufacturers in Europe, the United States and other countries generally adopt a selective catalytic reduction (SCR) technology to treat the exhaust of diesel vehicles to make it meet Euro IV and Euro V ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/94B01F1/00B01F15/00B01F15/04
Inventor 单薇马英张建新
Owner CHINA PETROLEUM & CHEM CORP
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