Liquid nano-catalysis desulfurizer for new dry process cement kiln and preparation method thereof

A technology of nano-catalysis and desulfurization agent, which is applied in chemical instruments and methods, separation methods, and separation of dispersed particles, can solve the problems of stimulation and inhibition of plant growth, low investment cost of ammonia-based desulfurization technology, and achieve simple and convenient use and improved Desulfurization efficiency, the effect of increasing the efficiency of sulfur fixation

Inactive Publication Date: 2017-09-19
严生
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After sulfur dioxide is oxidized in the atmosphere, it will form sulfate aerosol, and its toxicity can be increased by more than 10 times, which can cause cough, chest tightness, eye irritation, dyspnea, etc. Plant growth; and acid rain produced by sulfur dioxide will reduce soil fertilizer efficiency and damage soil structure
Among them, the FGD wet desulfurization technology occupies a large area, generally requiring about 500m2; the investment cost is high, with a one-time investment of 15-20 million yuan, and the operating cost is high, above 6 yuan / ton of clinker
The dry desulfurization technology occupies a small area, generally about 30m2; the investment cost is low, and the desulfurization efficiency is low, only 60-70%; the operating cost is high, and at least 8 yuan / ton of clinker is required; short-term sulfur fixation cannot be continuously and stably up to the standard , resulting in fluctuations in the composition
Ammonia desulfurization technology has low investment costs, poor thermal stability of ammonium sulfate, and secondary decomposition causes cyclic enrichment, which cannot be continuously and stably up to the standard; the formation of ammonium sulfate aerosol has a great impact on dust collection, and equipment corrosion and ammonia escape cannot be controlled; some cement plants spray NOX significantly increased after ammonia
The desulfurizers currently on the market have the disadvantages of high requirements on operation and equipment, high energy consumption, high cost, and unsatisfactory desulfurization effect.

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
  • Liquid nano-catalysis desulfurizer for new dry process cement kiln and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A liquid nano-catalytic desulfurizer, comprising the following substances in weight percent: 0.2% nano-cerium oxide, 0.1% nano-thorium oxide, 0.2% nano-titanium oxide, 0.1% nano-nickel oxide, 0.5% nano-calcium oxide, 0.5% nano-calcium carbonate %, carbonamide 3.0%, potassium permanganate 0.6%, sodium bismuthate 0.4%, AEO9 0.9%, octylphenol polyoxyethylene ether 5.3%, PEG200 1.3%, polymaleic acid 1.0%, fatty acid polyethylene glycol 3.5% ester, 5.5% diethylene glycol, and the balance is water.

[0028] The preparation process of liquid nano catalytic desulfurizer of the present invention is as follows:

[0029] Add nano-thorium oxide, nano-cerium oxide, AEO9, nano-titanium oxide, octylphenol polyoxyethylene ether, nano-nickel oxide, nano-calcium oxide, nano-calcium carbonate, PEG200, and diethylene glycol in the stirred reactor for 60 minutes. minutes, enter the emulsification system for emulsification for 25 minutes, then filter the emulsified slurry with a 1000-mesh s...

Embodiment 2

[0033] A liquid nano-catalytic desulfurizer, comprising the following substances in weight percent: 0.2% nano-cerium oxide, 0.4% nano-thorium oxide, 1.3% nano-titanium oxide, 0.4% nano-nickel oxide, 1.1% nano-calcium oxide, and 0.9% nano-calcium carbonate %, carbonamide 25.5%, potassium permanganate 2.3%, sodium bismuth 1.1%, AEO9 1.5%, octylphenol polyoxyethylene ether 6.5%, PEG200 2.4%, polymaleic acid 1.5%, fatty acid polyethylene glycol 4.9% ester, 7.9% diethylene glycol, the balance is water

[0034] Its preparation process is with embodiment 1.

[0035] Carry out the following tests on nano catalytic desulfurizer products:

[0036]Take 100kg of raw meal and 15kg of coal powder, mix the raw meal and coal powder evenly, carry out calcination on a small-scale simulated clinker calcination experimental platform, spray nano-catalytic desulfurizer into it, and detect it through a flue gas detection analyzer. 2 Concentration from 810mg / Nm 3 down to 32mg / Nm 3 .

Embodiment 3

[0038] A liquid nano-catalytic desulfurizer, consisting of the following substances by weight percentage: a liquid nano-catalytic desulfurizer, comprising the following substances by weight percentage: 0.3% of nano-cerium oxide, 0.3% of nano-thorium oxide, 1.1% of nano-titanium oxide, Nano-nickel oxide 0.5%, nano-calcium oxide 1.5%, nano-calcium carbonate 1.1%, carbonamide 27.2%, potassium permanganate 2.7%, sodium bismuth 1.1%, AEO9 1.8%, octylphenol polyoxyethylene ether 6.8%, PEG200 2.0%, polymaleic acid 1.9%, fatty acid polyethylene glycol ester 4.6%, diethylene glycol 7.5%, and the balance is water.

[0039] The preparation method is the same as in Example 1.

[0040] Carry out the following tests on nano catalytic desulfurizer products:

[0041] Take 100kg of raw meal and 15kg of coal powder, mix the raw meal and coal powder evenly, carry out calcination on a small-scale simulated clinker calcination experimental platform, spray nano-catalytic desulfurizer into it, and ...

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 liquid nano-catalysis desulfurizer for a new dry process cement kiln and a preparation method thereof. The liquid nano-catalysis desulfurizer, which is prepared from nano cerium oxide, nano thorium oxide, nano titanium oxide, nano nickel oxide, nano calcium oxide, nano calcium carbonate, carbomite, potassium permanganate, sodium bismuthate, AEO9, octyl phenol polyoxyethylene ether, PEG 200, polymaleic acid, fatty acid polyglycol ester, and diethylene glycol; the allowance is water. In the technical scheme, europium oxide, ferric acetylacetonate and polyoxyethylene ether are added. The desulfurization degree of the liquid nano-catalysis desulfurizer is 100%; sulfur dioxide in smoke gas can be discharged to zero.

Description

technical field [0001] The invention belongs to the technical field of energy saving and environmental protection, and in particular relates to a novel liquid nano catalytic desulfurizer for dry-process cement kilns and a preparation method thereof. Background technique [0002] my country is a big cement producing country. From January to December 2016, the output of cement was 2.4 billion tons. Cement has played a pivotal role in the development of human beings and society. At the same time, it has also brought harm to human beings and the ecological environment, including the emission of dust and harmful gases. , seriously damaged the atmospheric environment and human health. Especially the emission of sulfur dioxide in the atmosphere is more serious to environmental pollution. After sulfur dioxide is oxidized in the atmosphere, it will form sulfate aerosol, and its toxicity can be increased by more than 10 times, which can cause cough, chest tightness, eye irritation, dy...

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 Applications(China)
IPC IPC(8): B01D53/78B01D53/50
Inventor 严生黄世伟宋文国
Owner 严生
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap