KR940014746A - Coke oven gas purification process with improved sodium sulfide reaction efficiency - Google Patents

Coke oven gas purification process with improved sodium sulfide reaction efficiency Download PDF

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Publication number
KR940014746A
KR940014746A KR1019920026546A KR920026546A KR940014746A KR 940014746 A KR940014746 A KR 940014746A KR 1019920026546 A KR1019920026546 A KR 1019920026546A KR 920026546 A KR920026546 A KR 920026546A KR 940014746 A KR940014746 A KR 940014746A
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South Korea
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oven gas
coke oven
gas purification
sulfur
purification process
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KR1019920026546A
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Korean (ko)
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KR960003939B1 (en
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이상일
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포항종합제철 주식회사
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Publication of KR960003939B1 publication Critical patent/KR960003939B1/en

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  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)

Abstract

본 발명은 코크스 오븐 가스중 유해성분(H2S, HCN)의 제거를 위한 공정의 개선, 좀더 상세히는 코크스 오븐가스 정제 공정인 푸막스-로닥스 공정(Fumaks-Phodace Process)에 있어서 황(S)의 다황화 나트륨화 반응효율을 증진시킨 코크스 오븐 가스 정제공정에 관한 것이다. 본 발명에 의하여, 코크스 오븐 가스 정제공정중 NaOH을 이용하여 H2S를 분해제거하고 황을 이용하여 HCN을 무해한 NaSCN으로 전환시키는 기존의 푸막스-로닥스공정에 있어서, 공정중 용해탱크에 고온의 흡수액이 공급되도록 공정조건을 변경시킴으로써 황에 의한 다황화나트륨과 반응 효율 증진시키고 그에 따라 최종 로다네이트 반응단계가 충분히 이루어지도록하여 액중 자유황에 의한 제문제를 감소시키고 오븐 가스 유해 성분인 HCN 제거 효율을 증진시킨 개선된 코크스 오븐 가스 정제공정이 제공된다.The present invention is an improvement in the process for the removal of harmful components (H 2 S, HCN) in the coke oven gas, more specifically sulfur (S) in the Fumaks-Phodace Process, a coke oven gas purification process. The present invention relates to a coke oven gas purification process that enhances the reaction efficiency of sodium sulfide). According to the present invention, in the existing Fumax-Rodax process of decomposing and removing H 2 S using NaOH and converting HCN into harmless NaSCN using sulfur in a coke oven gas refining process, a high temperature in the dissolution tank during the process By changing the process conditions to supply the absorbent, the reaction efficiency with sodium polysulfide by sulfur is improved, and the final rhodanate reaction step is sufficiently performed to reduce the problems caused by free sulfur in the liquid and to remove HCN, which is a harmful component of the oven gas. An improved coke oven gas purification process with improved efficiency is provided.

Description

다황화 나트륨과 반응효율이 개선된 코크스 오븐 가스 정제공정Sodium polysulfide and coke oven gas purification process with improved reaction efficiency

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

제1도는 공지의 푸막스-로닥스(Fumaks-Rhodace) 코크스 오븐 가스 정제공정의 개략도.1 is a schematic representation of a known Fumaks-Rhodace coke oven gas purification process.

제2도는 본발명에 따라 변형된 푸막스-로닥스코크스 오븐가스 정제공정의 개략도.2 is a schematic representation of a Phumax-Rodakskox oven gas purification process modified in accordance with the present invention.

Claims (2)

코크스 오븐 가스 정제공정중 NaOH를 이용하여 H2S를 분해제거하고 황을 이용하여 HCN을 무해한 NaSCN으로 전환시키는 기존의 푸막스-로닥스 공정에 있어서, 공정중 흡수탑으로부터 용해탱크로 도입되는 흡수액의 최소한 일부를 별도 설치된 가온탱크를 통하여 고온으로 가열시켜 용해탱크에 공급으로써 흡수액중의 자유황 농도를 감소시키고 황에 의한 다황화나트륨화 반응효율을 증진시켜 최종 로다네이트 반응이 충분히 이루어지도록 하여 코크스 오븐 가스중 유해성분인 HCN 제거효율을 향상시킨, 다황화나트륨화 반응효율이 개선된 코크스 오븐 가스 정제공정.In the existing Fumax-Rodax process in which H 2 S is decomposed and removed using NaOH and sulfur is converted to harmless NaSCN in a coke oven gas purification process, an absorbent liquid introduced into the dissolution tank from the absorption tower during the process. At least a portion of the coke is heated to a high temperature through a separately installed heating tank and supplied to the dissolution tank to reduce the concentration of free sulfur in the absorbent liquid and to improve the efficiency of the sodium sulfide sulfation reaction by sulfur so that the final rodanate reaction is sufficiently performed. Coke oven gas purification process with improved sodium sulfide reaction efficiency, which improves HCN removal efficiency, which is a harmful component in oven gas. 제1항에 있어서, 용해탱크로 도입되는 흡수액의 최소한 일부가 가온 탱크내에서 100℃로 가열되어 용해탱크에 공급되고, 용해탱크내 용액 온도는 90℃이상으로 유지되며, 버퍼탱크내 반응용액 온도는 70℃이상으로 유지되는 것을 특징으로 하는 공정.The method of claim 1, wherein at least a portion of the absorbent liquid introduced into the dissolution tank is heated to 100 ℃ in the heating tank and supplied to the dissolution tank, the solution temperature in the dissolution tank is maintained at 90 ℃ or more, the reaction solution temperature in the buffer tank The process characterized in that it is maintained at 70 ℃ or more. ※참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: This is to be disclosed based on the first application.
KR1019920026546A 1992-12-30 1992-12-30 Refining process of cokes oven gas with enhancing reaction efficiency KR960003939B1 (en)

Priority Applications (1)

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KR1019920026546A KR960003939B1 (en) 1992-12-30 1992-12-30 Refining process of cokes oven gas with enhancing reaction efficiency

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Application Number Priority Date Filing Date Title
KR1019920026546A KR960003939B1 (en) 1992-12-30 1992-12-30 Refining process of cokes oven gas with enhancing reaction efficiency

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KR940014746A true KR940014746A (en) 1994-07-19
KR960003939B1 KR960003939B1 (en) 1996-03-23

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KR101463244B1 (en) * 2006-12-20 2014-11-19 주식회사 포스코 Exclusion medicine supply method of gas in Cokes Oven Gas

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