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Hydrogen sulfide leakage emergency removing dry powder, and preparation method thereof

A production method and dry powder elimination technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of environmental pollution, low removal efficiency, etc., to avoid environmental pollution, improve removal efficiency, and facilitate secondary treatment Effect

Inactive Publication Date: 2014-07-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One of the technical problems to be solved by the present invention is the problems of environmental pollution and low removal efficiency in the prior art, and a new dry powder for emergency capture and elimination of hydrogen sulfide leakage and its production method are provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Production of hydrogen sulfide leakage emergency capture and elimination dry powder, the agent is 75kg calcium hydroxide, the moisture-proof agent is 10kg silica gel, and the additive is 15kg diethanolamine. 200kg of deionized water, continue to stir for 2 hours, the obtained material is dried by a dryer, and then enters a grinder for grinding, and the ground powder is sieved to obtain a dry powder with a particle size of 5-15 μm, and then add a moisture-proof agent to obtain a powder that meets the requirements. Capture dry powder.

[0020] at 1.1m 3 The toxic gas test box was filled with hydrogen sulfide, and its concentration was detected to be 6400ppm. A dry powder injector was used to spray 250g of hydrogen sulfide capture and elimination dry powder into the test box, and the test was carried out after 10 minutes. The test result was 280ppm, and the removal efficiency reached 95%. above, and the disinfectant is well dispersed and easy to clean.

Embodiment 2

[0022] Production of hydrogen sulfide leakage emergency capture and elimination dry powder, 99kg of sodium hydroxide as the sterilizer, 0.5kg of 5A molecular sieve as the moisture-proof agent, 0.5kg of polyethylene glycol dimethyl ether as the additive, adding the additive and sterilizer into the reaction with a stirring paddle In the kettle, after stirring for 1 hour, add 50 kg of deionized water, and continue stirring for 3 hours. The obtained material is dried in a dryer and then grinded in a grinder. The ground powder is sieved to obtain a dry powder with a particle size of 5-15 μm, and then add Moisture-proof agent, obtain the dry powder of capture and elimination that meets the requirements.

[0023] at 1.1m 3 The toxic gas test box was filled with hydrogen sulfide, and its concentration was detected to be 6500ppm. A dry powder injector was used to spray 250g of hydrogen sulfide capture and elimination dry powder into the test box, and the test was carried out after 10 m...

Embodiment 3

[0025] Production of hydrogen sulfide leakage emergency capture dry powder, 65kg of potassium hydroxide as the scavenger, 15kg of activated alumina as the moisture-proof agent, 20kg of carboxymethyl cellulose as the additive, and adding the additive and scavenger into the reaction kettle with a stirring paddle , after stirring for 1 hour, add 500 kg of deionized water, continue to stir for 2 hours, the obtained material is dried in a dryer and then grinded in a grinder, and the ground powder is sieved to obtain a dry powder with a particle size of 5-15 μm, and then add a moisture-proof agent , to obtain the dry powder for capture and elimination that meets the requirements.

[0026] at 1.1m 3 The toxic gas test box was filled with hydrogen sulfide, and its concentration was detected to be 6500ppm. A dry powder injector was used to spray 250g of hydrogen sulfide capture and elimination dry powder into the test box, and the test was carried out after 10 minutes. The test result ...

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PUM

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Abstract

The invention relates to a hydrogen sulfide leakage emergency removing dry powder, and a preparation method thereof. The hydrogen sulfide leakage emergency removing dry powder is mainly used for solving problems of existing technology that environmental pollution is caused, and removing efficiency is low. The hydrogen sulfide leakage emergency removing dry powder mainly comprises, by mass, 65 to 99% of a removing agent, 0.5 to 15% of a moisture-proof agent, and 0.5 to 20% of an additive; the additive is at least one selected from polyethylene glycol dimetyl ether, N-methylpyrrolidinone, propylene carbonate, tributyl phosphate, N-methylcaprolactam, methyl alcohol, alkyl alkylol amine, sulfolane, bentonite, carboxymethyl cellulose, and sodium carboxymethylcellulose. The hydrogen sulfide leakage emergency removing dry powder is capable of solving the above problems preferably, and can be used for hydrogen sulfide leakage emergency removing.

Description

technical field [0001] The invention relates to a hydrogen sulfide leakage emergency capture dry powder and a production method thereof. Background technique [0002] Hydrogen sulfide is a colorless, highly toxic gas with a smell of rotten eggs. When poisoning occurs, hydrogen sulfide enters the alveoli through the respiratory tract and quickly reacts with ferrous ions in hemoglobin to form ferrous sulfide precipitation, which prevents hemoglobin from interacting with the alveoli. The collection of oxygen, eventually lead to human death due to lack of oxygen. Hydrogen sulfide poisoning incidents are sudden and mass, with a high mortality rate. Once it occurs, it will seriously threaten the personal safety of employees and the public, and the impact of secondary disasters will be great, seriously polluting the atmospheric environment, and even destroying the ecological environment. When the hydrogen sulfide content in the air reaches 6.1×10 -4 mg / m 3 You can smell the smel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/52
Inventor 朱胜杰邹兵王林严龙高少华姜素霞姜鸣
Owner CHINA PETROLEUM & CHEM CORP
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