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KR950005356A - Recovery of elemental sulfur (S) from sulfur dioxide (SO₂) containing gas through catalytic reduction reaction - Google Patents

Recovery of elemental sulfur (S) from sulfur dioxide (SO₂) containing gas through catalytic reduction reaction Download PDF

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Publication number
KR950005356A
KR950005356A KR1019930015402A KR930015402A KR950005356A KR 950005356 A KR950005356 A KR 950005356A KR 1019930015402 A KR1019930015402 A KR 1019930015402A KR 930015402 A KR930015402 A KR 930015402A KR 950005356 A KR950005356 A KR 950005356A
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South Korea
Prior art keywords
sulfur
containing gas
sulfur dioxide
gas
present
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Application number
KR1019930015402A
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Korean (ko)
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KR970002888B1 (en
Inventor
정종식
사영삼
이덕성
백상철
Original Assignee
조말수
포항종합제철 주식회사
백덕현
재단법인 산업과학기술연구소
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Priority to KR1019930015402A priority Critical patent/KR970002888B1/en
Publication of KR950005356A publication Critical patent/KR950005356A/en
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
    • C01B17/0456—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process the hydrogen sulfide-containing gas being a Claus process tail gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/88—Molybdenum
    • B01J23/882—Molybdenum and cobalt

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Treating Waste Gases (AREA)

Abstract

본 발명은 산성비의 주요인으로 알려져 있는 이산화황(SO2) 함유 가스로부터 원호 황(S)을 회수하는 방법. 더 자세히 언급하면, 환원제로서 수소함유가스를 이용하는 촉매 환원 공정을 통하여 배기가스 중에 함유되어 있는 SO2가스 또는 고농축 SO2가스로부터 원소 황을 회수하는 방법에 관한 것이다. 본 발명은 통하여 배기가스 중에 함유되어 있는 SO2를 직접 처리하거나 배연탈황공정에서 고농축된 SO2로부터 원소황을 회수할 수 있다. 특히, 본 발명은 황화수소(H2S)를 처리하는 상용적인 클라우스(Claus) 공정의 후처리 공정 부분에 새로운 기술로서 적용할 수 있다.The present invention is a method for recovering the arc of sulfur (S) from a sulfur dioxide (SO 2 ) containing gas known to be the main cause of acid rain. More specifically, the present invention relates to a method for recovering elemental sulfur from SO 2 gas or highly concentrated SO 2 gas contained in exhaust gas through a catalytic reduction process using hydrogen-containing gas as a reducing agent. The present invention can directly process SO 2 contained in the exhaust gas or recover elemental sulfur from highly concentrated SO 2 in a flue gas desulfurization process. In particular, the present invention is applicable as a novel technique to the post-treatment process portion of a commercially available Claus process that treats hydrogen sulfide (H 2 S).

Description

촉매환원반응을 통하여 이산화황(SO2)함유 가스로 부터 원소 황(S)을 회수하는 방법Recovering elemental sulfur (S) from sulfur dioxide (SO2) -containing gas through catalytic reduction

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

내용 없음No content

Claims (5)

환원제를 사용한 촉매 환원 공정에 의하여 이산화황(SO2) 함유가스로부터 원소 황(S)을 회수하는 방법에 있어서, 환원제로서 수소를 사용하고 촉매로서 알루미나에 담지된 코발트-몰리브덴계 촉매(Co-Mo/γ-Al2O3)를 사용하는 것을 특징으로 하는, 이산화황(SO2) 함유가스로부터 원소 황(S)을 회수하는 방법.In the method for recovering elemental sulfur (S) from a sulfur dioxide (SO 2 ) -containing gas by a catalytic reduction process using a reducing agent, a cobalt-molybdenum catalyst (Co-Mo / A method for recovering elemental sulfur (S) from a sulfur dioxide (SO 2 ) containing gas, characterized by using γ-Al 2 O 3 ). 제1항에 있어서, 알루미나에 담지된 코발트-몰리브덴계 촉매를 300-450℃의 온도에서 황화수소나 황화합물로 처리하여 사용하는 것을 특징으로 하는 방법.The method according to claim 1, wherein the cobalt-molybdenum catalyst supported on alumina is treated with hydrogen sulfide or a sulfur compound at a temperature of 300-450 ° C. 제1항 또는 2항에 있어서, 알루미나에 담지된 코발트의 양은 1-15%이고 몰리브덴의 양은 3-30%인 촉매를 사용하는 것을 특징으로 하는 방법.The method according to claim 1 or 2, wherein the amount of cobalt supported on the alumina is 1-15% and the amount of molybdenum is 3-30%. 제1항 또는 2항에 있어서, 반응계중 H2/SO2비는 2-5이고 촉매반응 온도는 200-350℃인 것을 특징으로 하는 방법.The process according to claim 1 or 2, wherein the H 2 / SO 2 ratio in the reaction system is 2-5 and the catalytic reaction temperature is 200-350 ° C. 제1항 또는 2항에 있어서, 이산화황 함유가스중 이산화황의 농도가 1000ppm 내지 30%인 것을 특징으로 하는 방법.The method according to claim 1 or 2, wherein the concentration of sulfur dioxide in the sulfur dioxide-containing gas is 1000 ppm to 30%. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930015402A 1993-08-09 1993-08-09 Method for recovering elemental sulfur (S) from sulfur dioxide (SO₂) containing gas through catalytic reduction reaction KR970002888B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930015402A KR970002888B1 (en) 1993-08-09 1993-08-09 Method for recovering elemental sulfur (S) from sulfur dioxide (SO₂) containing gas through catalytic reduction reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930015402A KR970002888B1 (en) 1993-08-09 1993-08-09 Method for recovering elemental sulfur (S) from sulfur dioxide (SO₂) containing gas through catalytic reduction reaction

Publications (2)

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KR950005356A true KR950005356A (en) 1995-03-20
KR970002888B1 KR970002888B1 (en) 1997-03-12

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CN109603791B (en) * 2018-11-20 2021-11-30 中国石油天然气股份有限公司 Sulfur recovery catalyst for low-temperature Claus process and preparation method thereof

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