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KR960010081A - Catalyst assembly providing high surface area for nitric acid and / or hydrogen cyanide synthesis - Google Patents

Catalyst assembly providing high surface area for nitric acid and / or hydrogen cyanide synthesis Download PDF

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Publication number
KR960010081A
KR960010081A KR1019940022601A KR19940022601A KR960010081A KR 960010081 A KR960010081 A KR 960010081A KR 1019940022601 A KR1019940022601 A KR 1019940022601A KR 19940022601 A KR19940022601 A KR 19940022601A KR 960010081 A KR960010081 A KR 960010081A
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sheet
catalyst
assembly
sheets
catalyst assembly
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KR1019940022601A
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Korean (ko)
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KR100313070B1 (en
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비. 오스트로프 크레이그
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스티븐 아이. 밀러
엥겔하드 코포레이션
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Application filed by 스티븐 아이. 밀러, 엥겔하드 코포레이션 filed Critical 스티븐 아이. 밀러
Priority to KR1019940022601A priority Critical patent/KR100313070B1/en
Priority to CN95117125A priority patent/CN1129538A/en
Priority to JP7225609A priority patent/JPH08173205A/en
Priority to KR1019950028554A priority patent/KR0180294B1/en
Publication of KR960010081A publication Critical patent/KR960010081A/en
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    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/02—Preparation, separation or purification of hydrogen cyanide
    • C01C3/0208—Preparation in gaseous phase

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Catalysts (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

본 발명은 시이트의 넓은 표면을 따라서 서로 밀접하게 포개어지도록 배열된 복수개의 미공성 와이어 매쉬시이트(여기서, 와이어 시이트는 복수개의 파상 주름으로 이루어진 비-평면상의 교차-부분을 형성함)를 포함하는 촉매 조립체에 관한 것이다. 촉매 조립체의 가장 자리는 평평하여 암모니아 전환기내에 안전하게 설치된다. 본 발명은 서로 인접하도록 겹쳐진 개개의 시이트뿐만 아니라, 상호 가장 자리가 결합되어 통합체를 생성하는 다수개의 시이트로 이루어진 패드를 포함한다. 본 발명의 촉매 조립체는 특수하고 유효 수명으로 증대하는 데에 기여하고 공정 비용 및 비가동 시간을 감소시키도록 하는 증대된 표면적과 함께 감소된 압력 강하성을 제공한다. 촉매 조립체는 용이하게 제조 및 설치할 수 있고 서로 다른 반응기의 용적 및 요구 사항에 적절하게 맞추기 위하여 크기 및 형태를 다양하게 하여 제조할 수 있다. 본 발명은 또한 촉매 조립체의 제작방법뿐만 아니라, 조립체를 사용하여 암모니아를 처리하는 방법에 관한 것이다.The present invention provides a catalyst comprising a plurality of microporous wire mesh sheets arranged to closely overlap one another along a wide surface of the sheet, wherein the wire sheet forms a non-planar cross-section consisting of a plurality of corrugated corrugations. To an assembly. The edge of the catalyst assembly is flat and safely installed in the ammonia converter. The present invention includes not only individual sheets superimposed so as to be adjacent to each other, but also pads composed of a plurality of sheets that combine with each other to form an integrated body. The catalyst assembly of the present invention provides a reduced pressure drop with increased surface area which contributes to increasing the special and useful life and reduces process costs and downtime. Catalyst assemblies can be readily manufactured and installed and can be manufactured in a variety of sizes and shapes to suit the different volumes and requirements of different reactors. The present invention also relates to a method of making a catalyst assembly, as well as a method of treating ammonia using the assembly.

Description

질산 및(또는) 시안화 수소 합성을 위한 고표면적을 제공하는 촉매 조립체Catalyst assembly providing high surface area for nitric acid and / or hydrogen cyanide synthesis

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

제2도는 본 발명에 따른 촉매 조립체의 투시도,2 is a perspective view of a catalyst assembly according to the invention,

제3도 및 4도는 원형 및 육각형 테두리를 갖도록 제조된 본 발명의 촉매 조립체의 평면도,3 and 4 are plan views of the catalyst assembly of the present invention made to have circular and hexagonal rims,

제5도는 본 발명의 일 실시 태양에 따른 촉매 조립체의 측면도5 is a side view of a catalyst assembly according to one embodiment of the present invention.

Claims (24)

넓은 미공성 표면을 가진 촉매 금속을 포함하는 복수개의 와이어 메쉬 시이트로 이루어지고, 이들 시이트의 인접 미공정 표면들이 서로 밀접하게 포개어져 있으며, 상기 표면들이 대부분의 영역에서 평면이 아니고 복수개의 골을 가지고 있는, 압력 강하의 정도가 더 약한 것과 함께 증대된 촉매 표면적을 제공하는 암모니아 산화 반응용 촉매 조립체It consists of a plurality of wire mesh sheets comprising a catalytic metal having a wide microporous surface, adjacent unprocessed surfaces of these sheets closely stacked on each other, which surfaces are not planar but have a plurality of valleys in most areas. Catalyst assembly for ammonia oxidation which provides increased catalyst surface area with weaker degree of pressure drop. 제1항에 있어서, 각각의 시이트가 평평한 외주를 갖는 것인 촉매 조립체The catalyst assembly of claim 1, wherein each sheet has a flat outer circumference. 제1항에 있어서, 시이트들이 그의 외주를 따라 서로 결합되어 있으며 외주가 거의 평면인 촉매 조립체The catalyst assembly of claim 1, wherein the sheets are joined together along their periphery and the periphery is substantially planar. 제3항에 있어서, 시이트들이 가열 및(또는) 기압에 의해 외주를 따라 함께 결합된 것인 촉매 조립체4. The catalyst assembly of claim 3, wherein the sheets are joined together along the periphery by heating and / or air pressure. 제1항에 있어서, 골이 규칙적으로 이격되어 있는 촉매 조립체The catalyst assembly of claim 1, wherein the valleys are regularly spaced apart. 제1항에 있어서, 촉매 조립체의 표면적이 바깥 둘레가 동일한 평면 촉매 거즈 조립체의 표면적에 비하여 약 1.6 내지 약 1.7배 정도인 촉매 조립체The catalyst assembly of claim 1, wherein the catalyst assembly has a surface area of about 1.6 to about 1.7 times the surface area of the planar catalyst gauze assembly having the same outer circumference. 제1항에 있어서, 와이어 메쉬 시이트들이 직포상 금속 거즈로 이루어진 것인 촉매 조립체The catalyst assembly of claim 1, wherein the wire mesh sheets are made of woven metallic gauze. 제7항에 있어서, 와이어 메쉬 시이트들이 백금 및 그의 합금으로 이루어진 군으로부터 선택된 재료로부터 제조된 것인 촉매 조립체8. The catalyst assembly of claim 7, wherein the wire mesh sheets are made from a material selected from the group consisting of platinum and alloys thereof. 제8항에 있어서, 와이어 메쉬 시이트들이 적어도 85% 이상의 백금을 함유하는 것인 촉매 조립체The catalyst assembly of claim 8, wherein the wire mesh sheets contain at least 85% or more platinum. 제8항에 있어서, 와이어 메쉬 시이트들이 백금, 로듐, 및 임의로는 팔라듐의 합금으로부터 제조된 것인 촉매 조립체The catalyst assembly of claim 8, wherein the wire mesh sheets are made from an alloy of platinum, rhodium, and optionally palladium. 제1항에 있어서, 와이어 메쉬 시이트의 표면에 대응하는 형태의 평면이 아닌 표면을 가지고 시이트의 하방부에 위치되는 촉매 지지 스크린을 더 포함하는 촉매 조립체The catalyst assembly of claim 1, further comprising a catalyst support screen having a non-planar surface corresponding to the surface of the wire mesh sheet and positioned below the sheet. 제1항에 있어서, 모든 시이트들이 두개의 거의 평면인 외부 와이어 메쉬 시이트 사이에 하나의 유닛으로서 배열된 촉매 조립체The catalyst assembly of claim 1, wherein all sheets are arranged as one unit between two substantially planar outer wire mesh sheets. 제1항에 있어서, 1개 이상의 시이트에 암모니아 산화반응의 개시에 도움을 주는 피복물이 제공되어 있는 촉매 조립체The catalyst assembly of claim 1, wherein the at least one sheet is provided with a coating to aid in initiation of ammonia oxidation. 제13항에 있어서, 시이트의 50%이하가 조립체 중의 촉매 금속을 함유하는 시이트의 최상부로부터 시작하여 상기 피복물로 연속적으로 피복된 촉매 조립체The catalyst assembly of claim 13, wherein up to 50% of the sheet is continuously coated with the coating starting from the top of the sheet containing the catalyst metal in the assembly. (a) 적어도 1개 이상의 미공성 촉매 금속 시이트를 준비하는 단계(여기서, 시이트는 상기 촉매 조립체의 최종 둘레에 치수면에서 대응하는 둘레의 평면 시이트의 면적보다 더 큰 면적을 가짐); (b) 단계(a)의 시이트를 주름잡아서 비-평면상의 넓은 표면을 형성시키는 단계; (c) 단계(b)의 시이트를 조립체의 최종 둘레의 치수로 절단하는 단계; 및 (d) 단계(c) 절단 시이트의 외주를 평평하게 하는 단계를 포함하는 증대된 표면적 및 감소된 압력 강하성을 제공하는 촉매 조립체의 제작 방법(a) preparing at least one microporous catalytic metal sheet, wherein the sheet has an area greater than the area of the corresponding circumferential planar sheet in dimension in the final circumference of the catalyst assembly; (b) pleating the sheet of step (a) to form a broad non-planar surface; (c) cutting the sheet of step (b) to the dimensions of the final perimeter of the assembly; And (d) flattening the outer periphery of the cutting sheet; a method of making a catalyst assembly providing increased surface area and reduced pressure drop. 제15항에 있어서, 단계(b)를 주름잡힌 롤 사이에서 시이트를 권축하여 수행하는 방법The method of claim 15, wherein step (b) is performed by crimping the sheet between the corrugated rolls. 제15항에 있어서, 단계(d)를 가열 및(또는) 가압에 의해 수행하는 방법The method of claim 15 wherein step (d) is carried out by heating and / or pressurization. 제15항에 있어서, 단계(b)를 수행한 후의 시이트의 표면적이 바깥 둘레가 동일한 평면 시이트의 표면적에 비하여 약 1.6 내지 약 1.7배 정도인 것인 방법The method of claim 15, wherein the surface area of the sheet after performing step (b) is about 1.6 to about 1.7 times the surface area of the planar sheet having the same outer circumference. 제15항에 있어서, 복수개의 시이트를 단계(a) 내지 (c)에 따라 가공하고, 이들 시이트를 서로 밀접하게 내접된 상태로 함께 겹치게 하고, 이어서 이들 시이트의 외주를 단계(d)에 따라서 동시에 처리하는 것인 방법The process according to claim 15, wherein the plurality of sheets are processed according to steps (a) to (c), the sheets are overlapped together in intimately inscribed state with each other, and the outer periphery of these sheets is then simultaneously subjected to step (d). How to process 제15항에 있어서, 1개 이상의 시이트에 암모니아 산화 반응의 개시에 도움을 주는 피복물이 제공되어 있는 방법The method of claim 15, wherein the at least one sheet is provided with a coating to assist in initiating the ammonia oxidation reaction. 제20항에 있어서, 촉매 금속 시이트의 50%이하가 조립체 중의 촉매 금속 시이트의 최상부로부터 시작하여 상기 피복물로 연속적으로 피복된 것인 방법The method of claim 20, wherein up to 50% of the catalytic metal sheet is continuously coated with the coating starting from the top of the catalytic metal sheet in the assembly. 암모니아를 부생성물로 전환하기 위한 촉매를 포함하는 반응기를 통하여 암모니아를 통과시키는 것으로 이루어진 질산 및 시안화 수소로부터 선택된 반응 부생성물을 생성하는 암모니아의 반응 방법에 있어서, 넓은 미공성 표면을 가진 촉매 금속을 포함하는 복수개의 와이어 메쉬 시이트로 이루어지고, 이들 시이트의 인접한 미공성 표면들이 서로 밀접하게 포개어져 있으며, 시이트의 표면들이 대부분의 영역에서 평면이 아니고 복수개의 골을 가지고 있는 압력 강하의 정도가 더 약한 것과 함께 증대된 촉매 표면적으로 제공하는 촉매 조립체를 통하여 암모니아를 통과시키는 것을 특징으로 하는 개선 방법A process for the reaction of ammonia to produce a reaction byproduct selected from nitric acid and hydrogen cyanide consisting of passing ammonia through a reactor comprising a catalyst for converting ammonia to a byproduct, comprising a catalytic metal having a wide microporous surface. Consisting of a plurality of wire mesh sheets, adjacent microporous surfaces of these sheets closely stacked on each other, with a weaker degree of pressure drop in which the surfaces of the sheet have a plurality of valleys rather than being flat in most areas; An improvement method characterized by passing ammonia through a catalyst assembly providing together increased catalyst surface area 제22항에 있어서, 각각의 시이트가 평평한 외주를 갖는 것인 방법The method of claim 22, wherein each sheet has a flat outer circumference. 제22항에 있어서, 시이트들이 그의 외주를 따라 서로 결합되어 있으며, 외주가 거의 평면인 방법23. The method of claim 22, wherein the sheets are joined together along their periphery and the periphery is substantially planar. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940022601A 1994-09-02 1994-09-08 Catalyst assembly provides high surface area for nitric acid and / or hydrogen cyanide synthesis KR100313070B1 (en)

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KR1019940022601A KR100313070B1 (en) 1994-09-08 1994-09-08 Catalyst assembly provides high surface area for nitric acid and / or hydrogen cyanide synthesis
CN95117125A CN1129538A (en) 1994-09-02 1995-09-01 Ventilated inner shoe-sole
JP7225609A JPH08173205A (en) 1994-09-02 1995-09-01 Air circulating type internal sole
KR1019950028554A KR0180294B1 (en) 1994-09-02 1995-09-01 Ventilated socks

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KR1019940022601A KR100313070B1 (en) 1994-09-08 1994-09-08 Catalyst assembly provides high surface area for nitric acid and / or hydrogen cyanide synthesis

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KR100313070B1 KR100313070B1 (en) 2002-02-19

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WO2003022088A1 (en) * 2002-03-18 2003-03-20 Kin Ming Tse Highheelcom
KR20040037516A (en) * 2002-10-29 2004-05-07 양영욱 A air circulation type footwear
CN100361934C (en) * 2006-05-13 2008-01-16 德清县延炜耐火材料厂 High-silicon composite fire-retardant spattering-resistant tube
KR101301690B1 (en) * 2011-10-27 2013-08-29 백수호 all sole area contact type innersole
CN102429390B (en) * 2011-12-07 2015-11-11 周艳春 Free adjustment is blown, air draught footwear
WO2015046706A1 (en) * 2013-09-25 2015-04-02 정현산 Midsole for shoes having dual structure and method for manufacturing same
CN105962528A (en) * 2016-07-12 2016-09-28 陈志育 Breathable massage shoe sole
KR102016296B1 (en) * 2018-02-03 2019-08-30 이인수 Shoe insole with ventilation means

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KR960009926A (en) 1996-04-20
KR0180294B1 (en) 1999-05-15
KR100313070B1 (en) 2002-02-19
JPH08173205A (en) 1996-07-09

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