Method for removing sulfur dioxide, sulfur trioxide and hydrogen sulfide in tail gas of oil burning boiler

A sulfur dioxide and sulfur trioxide technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of high price of amino desulfurizer, ammonia gas leakage, poisoning, etc., and achieve fast precipitation and not easy to scale , the effect of less dosage

Inactive Publication Date: 2015-12-16
叶澄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of amino desulfurizer is high, and special transportation, storage, metering and delivery equipment are required. The leakage of ammonia gas will cause environmental problems such as odor and poisoning.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A method for removing sulfur dioxide, sulfur trioxide and hydrogen sulfide in the tail gas of an oil-fired boiler, in which the tail gas of the oil-fired boiler is passed through a pipeline into a sufficient amount of desulfurizer, and the sulfur dioxide, sulfur trioxide and hydrogen sulfide in the tail gas react with the desulfurizer, The complex precipitate is removed by filtration, and the desulfurizer includes the following components by weight fraction:

[0050] 12 parts of 2-ethoxybenzaldehyde,

[0051] 7 parts of 4-methoxybenzyl bromide,

[0052] 0.5 part of cyclohexanone,

[0053] 16 parts of N, N-diethylethylamine,

[0054] 3 parts of 3-buten-1-ol,

[0055] 11 parts of 1-tetralone,

[0056] 0.9 parts of tricresyl phosphate,

[0057] 15 parts of N,N-dimethyltrimethylenediamine,

[0058] 5 parts of 2-methoxy-5-fluorouracil,

[0059] 8 parts of isopropylamine,

[0060] 1.8 parts of N-tert-butoxycarbonyl-3-piperidone,

[0061] 12 parts of ethyl oxalyl chlo...

Embodiment 2

[0069] A method for removing sulfur dioxide, sulfur trioxide and hydrogen sulfide in the tail gas of an oil-fired boiler, in which the tail gas of the oil-fired boiler is passed through a pipeline into a sufficient amount of desulfurizer, and the sulfur dioxide, sulfur trioxide and hydrogen sulfide in the tail gas react with the desulfurizer, The complex precipitate is removed by filtration, and the desulfurizer includes the following components by weight fraction:

[0070] 14 parts of 2-ethoxybenzaldehyde,

[0071] 9 parts of 4-methoxybenzyl bromide,

[0072] 0.7 parts of cyclohexanone,

[0073] 18 parts of N, N-diethylethylamine,

[0074] 5 parts of 3-buten-1-ol,

[0075] 13 parts of 1-tetralone,

[0076] 1.1 parts of tricresyl phosphate,

[0077] 17 parts of N, N-dimethyltrimethylenediamine,

[0078] 7 parts of 2-methoxy-5-fluorouracil,

[0079] 10 parts of isopropylamine,

[0080] 2.0 parts of N-tert-butoxycarbonyl-3-piperidone,

[0081] 14 parts of ethyl oxalyl chl...

Embodiment 3

[0089] A method for removing sulfur dioxide, sulfur trioxide and hydrogen sulfide in the tail gas of an oil-fired boiler, in which the tail gas of the oil-fired boiler is passed through a pipeline into a sufficient amount of desulfurizer, and the sulfur dioxide, sulfur trioxide and hydrogen sulfide in the tail gas react with the desulfurizer, The complex precipitate is removed by filtration, and the desulfurizer includes the following components by weight fraction:

[0090] 13 parts of 2-ethoxybenzaldehyde,

[0091] 8 parts of 4-methoxybenzyl bromide,

[0092] 0.6 parts of cyclohexanone,

[0093] 17 parts of N, N-diethylethylamine,

[0094] 4 parts of 3-buten-1-ol,

[0095] 12 parts of 1-tetralone,

[0096] Tricresyl phosphate 1.0 parts,

[0097] 16 parts of N, N-dimethyltrimethylenediamine,

[0098] 6 parts of 2-methoxy-5-fluorouracil,

[0099] 9 parts of isopropylamine,

[0100] 1.9 parts of N-tert-butoxycarbonyl-3-piperidone,

[0101] 13 parts of ethyl oxalyl chlor...

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PUM

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Abstract

The invention relates to a method for removing sulfur dioxide, sulfur trioxide and hydrogen sulfide in tail gas of an oil burning boiler. The method comprises the steps of introducing a sufficient amount of desulfurizing agent into the tail gas of the oil burning boiler through a pipeline, carrying out reaction on sulfur dioxide, sulfur trioxide, hydrogen sulfide and the desulfurizing agent to obtain complex precipitates, and filtering for removing the complex precipitates. The desulfurizing agent comprises the following components by weight percent: 2-ethoxybenzaldehyde, 4-methoxybenzyl bromide, cyclohexanone, triethylamine, 3-buten-1-ol, 1-tetralone, tritolyl phosphate, 3-dimethylaminopropylamine, 2-methoxy-5-fluorouracil, isopropylamine, 1-boc-3-piperidone, ethyl oxalyl monochloride and ethyl alcohol absolute. According to the method, the complexing capability with target substances is strong, the complex precipitate formation speed is high, the removal rate can up to 99%, the cost is low, the using amount is small, and scaling cannot occur, so that the environment cannot be damaged.

Description

technical field [0001] The invention relates to a method for removing sulfur dioxide, sulfur trioxide and hydrogen sulfide in the tail gas of an oil-fired boiler, belonging to the technical field of environmental protection. Background technique [0002] Desulfurizers generally refer to agents that remove free sulfur or sulfur compounds in fuels, raw materials or other materials; in the control and treatment of pollutants, they mainly refer to the removal of sulfur compounds (such as SO 2 , SO 3 and H 2 S) Agents used. Several commonly used desulfurizers are: calcium-based desulfurizer, sodium-based desulfurizer, magnesium-based desulfurizer, amino desulfurizer, etc. [0003] Calcium-based desulfurizers are most commonly used in desulfurization. Commonly used calcium-based desulfurizers include lime, slaked lime, carbide slag, limestone, and dolomite, which can also be obtained from calcium-rich industrial waste residues and raw materials. The advantage of this process i...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/50B01D53/52
Inventor 叶澄
Owner 叶澄
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