Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of decoking agent and preparation method thereof

A technology of decoking agent and auxiliary agent, used in the field of decoking agent and its preparation, can solve the problems of not too obvious coke inhibition effect, small solid content of chemical reagents, small addition amount, etc., to achieve the improvement effect and reduce sulfate. The effect of generating and improving combustion efficiency

Active Publication Date: 2021-11-09
廊坊亿泰化工建材有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The liquid type decoking agent has the advantages of small addition amount, small solid content of chemical reagents, low cost, and no dead angle after spraying into the furnace; the decoking agent in the prior art generally has a good decoking effect, but the decoking effect not too obvious

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of decoking agent and preparation method thereof
  • A kind of decoking agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a decoking agent, the raw materials include the following parts by weight: 90 parts of deionized water, 0.8 parts of boric acid, nitrates (potassium nitrate, copper nitrate, magnesium nitrate and aluminum nitrate, weight ratio 5:0.5:0.4: 0.05) 7.5 parts, additives (hydrochloric acid, hydrofluoric acid and nitric acid, volume ratio 2:1:7) 10 parts.

[0047] The present embodiment also provides a preparation method of the decoking agent, the steps include the following steps: (1) adding 0.8 parts of boric acid to 90 parts of deionized water, stirring and mixing completely, and then adding nitrates (potassium nitrate, nitric acid Copper, magnesium nitrate and aluminum nitrate, weight ratio 5:0.5:0.4:0.05) 7.5 parts were added to deionized water and stirred for 25 minutes to dissolve completely to obtain a mixed solution; (2) in the mixed solution obtained in step (1) Add 10 parts of additives (hydrochloric acid, hydrofluoric acid and nitric acid, v...

Embodiment 2

[0050] The specific implementation method of this embodiment is the same as that of Example 1, except that the boric acid is 0.5 parts, and the deionized water is 95 parts.

[0051] The decoking agent prepared in this example is denoted as C2.

Embodiment 3

[0053] The specific implementation of this example is the same as that of Example 1, except that potassium nitrate, copper nitrate, magnesium nitrate and aluminum nitrate are in a weight ratio of 4.5:0.6:0.5:0.1.

[0054] The decoking agent prepared in this example is denoted as C3.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a decoking agent. The raw materials include the following parts by weight: 80-120 parts of solvent, 0.1-2 parts of high-temperature retention agent, 1-10 parts of nitrate and 8-15 parts of auxiliary agent. Among them, the nitrate is potassium nitrate, copper nitrate, magnesium nitrate and aluminum nitrate; the auxiliary agent is a compound mixed acid of hydrochloric acid, hydrofluoric acid and nitric acid; the prepared decoking agent has good dust and coke removal efficiency and low corrosion And good boiler thermal efficiency improvement effect, suitable for promotion in the field of boiler decoking, has broad development prospects.

Description

technical field [0001] The invention relates to the field of boiler decoking, in particular to a decoking agent and a preparation method thereof. Background technique [0002] Due to the high heat intensity and high combustion temperature of coal-fired boilers, under the influence of various complex factors such as unreasonable boiler design, improper operation, or changes in coal quality, it is easy to form serious coking and ash accumulation. In the coal combustion process, due to the ash and coking of the heated area, the heat transfer efficiency of the boiler decreases, the exhaust gas temperature increases, and the energy consumption increases. And the heating surface is prone to sulfate corrosion due to severe coking, which shortens the service life of the boiler. These problems will seriously affect the safe operation of the boiler. [0003] At present, for the cleaning and decoking of industrial boilers and large-scale power plant boilers, two methods are usually u...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10L9/10C10L10/04
CPCC10L9/10C10L10/04
Inventor 徐四青
Owner 廊坊亿泰化工建材有限公司