KR930016136A - How to purify the waste gas emitted from the furnace - Google Patents

How to purify the waste gas emitted from the furnace Download PDF

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Publication number
KR930016136A
KR930016136A KR1019930000604A KR930000604A KR930016136A KR 930016136 A KR930016136 A KR 930016136A KR 1019930000604 A KR1019930000604 A KR 1019930000604A KR 930000604 A KR930000604 A KR 930000604A KR 930016136 A KR930016136 A KR 930016136A
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South Korea
Prior art keywords
waste gas
furnace
sodium hydroxide
powder
sodium
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KR1019930000604A
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Korean (ko)
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에르꼴레 피에르또
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나탈레 마데르나
아비르 피난지아리아 에스. 피. 에이.
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Application filed by 나탈레 마데르나, 아비르 피난지아리아 에스. 피. 에이. filed Critical 나탈레 마데르나
Priority to KR1019930000604A priority Critical patent/KR930016136A/en
Publication of KR930016136A publication Critical patent/KR930016136A/en

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  • Treating Waste Gases (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

물을 사용하여 급냉시킴으로써 수행되는 냉각 동안, 기존의 SO2를 산화시켜 안정한 Na2SO2를 형성하고, 여과 동안 필터에 존재하는 황산나트륨의 케이크에 대한 SO3및 SO2의 흡착에 유리한 조건이 형성됨을 특징으로 구성된 유리 제조시 용해로로부터 방출되는 폐가스에 존재하는 오염물질의 감소에 관한 개선된 방법에 관한 것이다.During the cooling performed by quenching with water, the existing SO 2 is oxidized to form stable Na 2 SO 2 and conditions favorable for adsorption of SO 3 and SO 2 to the cake of sodium sulfate present in the filter during filtration are formed. An improved method for reducing the contaminants present in the waste gas emitted from a furnace in the manufacture of glass comprising:

Description

용해로에서 방출되는 폐가스를 정제하는 방법How to purify the waste gas emitted from the furnace

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (13)

유리 제조시 용해로로부터 방출되는 SO2및 SO3를 함유하는 폐가스를 냉각단계 동안에 급냉시켜 SO2를 SO3로 산화시키고 SO3를 폐가스가 통과하는 필터에 존재하는 황산나트륨 케이크(cake)에 흡착시키기에 유리한 조건을 형성함을 특징으로 하여 유리 제조시 용해로로부터 방출되는 SO2및 SO3를 함유하는 폐가스를 정제하는 방법.The waste gas containing SO 2 and SO 3 released from the furnace during glass manufacture is quenched during the cooling step to oxidize SO 2 to SO 3 and to adsorb SO 3 to the sodium sulfate cake present in the filter through which the waste gas passes. A process for purifying waste gases containing SO 2 and SO 3 emitted from a melting furnace in the manufacture of glass, characterized by forming favorable conditions. 제1항에 있어서, 폐가스에 존재하는 SO2의 일부가, 급냉하거나 여과하는 동안, 여과에 의해 용이하게 분리될수 있는 아황산나트륨 및/또는 이티온산나트륨으로 전환되는 방법.The process of claim 1, wherein a portion of the SO 2 present in the waste gas is converted to sodium sulfite and / or sodium titanate, which can be easily separated by filtration during quenching or filtration. 제1항에 있어서, 소오다 석회 유리 제조시 용해로로부터 방출되는 폐가스에 대해 수행하는 방법.The process according to claim 1, which is carried out on waste gases emitted from the furnace in the manufacture of soda lime glass. 제1항 내지 제3항중 어느 한 항에 있어서, SO2및 SO3에 대한 수산화나트륨의 몰 비가 0.1 내지 2.5로 되도록 하는 양의 수산화나트륨을 사용하여 목적하는 냉각을 수행하기 위해 적당한 농도의 수산화나트륨 희석 수용액을 급냉 공급함으로써 폐가스 냉각을 수행하는 방법.4. The sodium hydroxide of claim 1, wherein the sodium hydroxide is at an appropriate concentration to effect the desired cooling using sodium hydroxide in an amount such that the molar ratio of sodium hydroxide to SO 2 and SO 3 is from 0.1 to 2.5. A method of performing waste gas cooling by quenching a diluted aqueous solution. 제1항 내지 제3항중 어느 한 항에 있어서, 수산화 나트륨이 SO2+ SO3에 대해 중화제로서 작용할 뿐만 아니라 SO2에서 SO3로의 산화반응을 촉진하여 사용하는 수산화나트륨의 몰수에 따라 총 유리 SO2/유리 SO3에 대한 유리 SO3의 농도가 8% 내지 50%로 되도록 하는 방법.The total free SO according to any one of claims 1 to 3, wherein sodium hydroxide acts as a neutralizing agent for SO 2 + SO 3 as well as promotes the oxidation of SO 2 to SO 3 , depending on the number of moles of sodium hydroxide used. 2 / The concentration of free SO 3 to free SO 3 is 8% to 50%. 제1항 내지 제3항중 어느 한 항에 있어서, SO2에서 SO3로의 산화반응의 촉진이 SO2+ SO3에 대한 수산화칼슘의 비율이 0.1 내지 1.5%로 되도록 하는 양의 수산화칼슘을 사용함으로써 수득되는 방법.The method according to any one of claims 1 to 3, wherein the promotion of the oxidation reaction from SO 2 to SO 3 is obtained by using calcium hydroxide in an amount such that the ratio of calcium hydroxide to SO 2 + SO 3 is 0.1 to 1.5%. Way. 제1항 내지 제6항중 어느 한 항에 있어서, SO2에서 SO3로의 산화반응의 촉진이 SO2+ SO3에 대한 황산나트륨의 비율이 0.1 내지 5.0%로 되도록 하는 양의 황산나트륨을 사용함으로써 수득되는 방법.The process according to any one of claims 1 to 6, wherein the promotion of the oxidation reaction from SO 2 to SO 3 is obtained by using sodium sulfate in an amount such that the ratio of sodium sulfate to SO 2 + SO 3 is from 0.1 to 5.0%. Way. 제1항 내지 제7항중 어느 한 항에 있어서, SO2에서 SO3로의 산화반응의 촉진이 SO2+ SO3에 대한 사용되는 강전해질의 비율이 0.1 내지 5.0%로 되도록 하는 양으로 특정 종류의 강 전해질을 사용함으로써 수득되는 방법.8. The specific type of steel according to any one of claims 1 to 7, wherein the promotion of the oxidation reaction from SO 2 to SO 3 causes the ratio of the used ferro electrolyte to SO 2 + SO 3 to be from 0.1 to 5.0%. Method obtained by using an electrolyte. 제1항 내지 제8항중 어느 한 항에 있어서, 유리화 분말 혼합물중 혼합된 SO2의 퍼센트가 분말을 산화처리함으로써 25중량%미만으로 유지되는 방법.The process according to claim 1, wherein the percentage of SO 2 mixed in the vitrified powder mixture is maintained at less than 25% by weight by oxidizing the powder. 제1항 내지 제9항중 어느 한 항에 있어서, 유리화 혼합물의 제조시 유리화 혼합물에 존재하는 Na2SO4을 부분적 또는 전체적으로 대체하는 경우 Na2SO3및 NaSO2O6함유 분말을 재이용함으로써 재사이클링 분말에 함유된 4가 황의 환원효과가 환원 성분의 양이 적당하게 감소되어 보상되는 방법.10. The method according to any one of claims 1 to 9, wherein the recycling of the Na 2 SO 3 and NaSO 2 O 6 containing powders when the vitrification mixture is partially or wholly replaced by Na 2 SO 4 present in the vitrification mixture. A method in which the reducing effect of tetravalent sulfur contained in the powder is compensated by appropriately reducing the amount of reducing components. 제1항 내지 제10항중 어느 한 항에 있어서, 분리된 분말의 용해로로의 이동 및 재사이클링을 촉진하기 위해, 분리된 분말을 물 및 가성 소오다에 현탁시키는 방법.The process according to any of claims 1 to 10, wherein the separated powder is suspended in water and caustic soda to facilitate the transfer and recycling of the separated powder into the melting furnace. 제1항 내지 제11항중 어느 한 항에 있어서, 높은 황 농도에서 오일을 연소시켜 소오다 석회 유리를 제조하는 경우 용해로로부터 수득되는 폐가스에 적용되는 방법.The process according to any one of claims 1 to 11, which is applied to the waste gas obtained from the furnace in case of producing soda lime glass by burning oil at high sulfur concentration. 제1항 내지 제11항중 어느 한 항에 있어서, 폐가스에 존재하는 오염물질의 감소를 수행해야만 하는 산업적 연소공장에 적용되는 방법.The method according to any one of claims 1 to 11, which is applied to an industrial combustion plant which has to carry out the reduction of pollutants present in the waste gas. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930000604A 1992-01-20 1993-01-19 How to purify the waste gas emitted from the furnace KR930016136A (en)

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ITMI92A000080 1992-01-20
KR1019930000604A KR930016136A (en) 1992-01-20 1993-01-19 How to purify the waste gas emitted from the furnace

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100408584B1 (en) * 1995-04-05 2004-03-24 코닌클리케 필립스 일렉트로닉스 엔.브이. Cathode ray tube and deflection unit for a cathode ray tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100408584B1 (en) * 1995-04-05 2004-03-24 코닌클리케 필립스 일렉트로닉스 엔.브이. Cathode ray tube and deflection unit for a cathode ray tube

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