KR950002856A - Method for producing spherical alumina catalyst support - Google Patents

Method for producing spherical alumina catalyst support Download PDF

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Publication number
KR950002856A
KR950002856A KR1019930013323A KR930013323A KR950002856A KR 950002856 A KR950002856 A KR 950002856A KR 1019930013323 A KR1019930013323 A KR 1019930013323A KR 930013323 A KR930013323 A KR 930013323A KR 950002856 A KR950002856 A KR 950002856A
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KR
South Korea
Prior art keywords
catalyst support
dehydrogenation
support
molecular weight
low molecular
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KR1019930013323A
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Korean (ko)
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KR960010901B1 (en
Inventor
김기수
문창모
홍성구
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구창남
동양나일론 주식회사
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Priority to KR1019930013323A priority Critical patent/KR960010901B1/en
Publication of KR950002856A publication Critical patent/KR950002856A/en
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Publication of KR960010901B1 publication Critical patent/KR960010901B1/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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0072—Preparation of particles, e.g. dispersion of droplets in an oil bath
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • 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
    • B01J35/51—Spheres
    • 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
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • 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
    • B01J37/04—Mixing

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)

Abstract

본 발명은 저분자량 포화탄화수소의 탈수소용 촉매지지체의 제조방법으로, 알루미나졸에 약염기가 5∼30% 용해된 수용액을 혼합한 후, 이 혼합된 졸용액을 50℃ 이상으로 유지되면서 현탁매개체로 차있는 유리관에 적하시키는 방식으로 사용되는 균일한 지름의 구형 알루미나를 수득하는 저분자량 탄화수소의 탈수소용 촉매지지체의 제조방법이며, 백금족 금속성분, Ⅳ A족 금속성분 및 알칼리금속 또는, 알칼리토금속 성분을 포함시켜 탈수소가 가능한 저분자량 포화탄화수소의 탈수소화 반응을 일으키는 촉매의 지지체로 사용되는 표면적 85∼200㎡/g이고 ABD가 0.1 이상인 범위를 가지며 지름이 1-10㎜인 균일한 크기의 구형 알루미나를 수득하며, 이를 사용한 촉매지지체는 지지체 겉포면에 돌출부가 없기 때문에 공정중에 또는, 운반중에서 마모와 파쇄가 적으며 이에따라 마모, 파쇄된 작은 알갱이들에 의한 공정의 여러 장치에 대한 막힘현상을 방지할 수 있어 고정층이 아닌, 지지체가 추가의 운반매개체에 의하여 한 구역에서 또 다른 구역으로 이동하는 유동층에서 알루미나 지지체가 사용될때, 더욱 뛰어난 효과를 볼 수 있다.The present invention is a method for producing a catalyst support for dehydrogenation of low molecular weight saturated hydrocarbon, after mixing an aqueous solution of 5-30% weak base in alumina sol, and then maintaining the mixed sol solution at 50 ℃ or more as a suspension medium A method for the preparation of a catalyst support for dehydrogenation of low molecular weight hydrocarbons to obtain spherical alumina of uniform diameter, which is used in a dropwise manner in a glass tube, which comprises a platinum group metal component, a Group IV A metal component and an alkali metal or an alkaline earth metal component. To obtain a spherical alumina of uniform size having a surface area of 85 to 200 m 2 / g and an ABD of 0.1 or more and a diameter of 1 to 10 mm, used as a support for a catalyst for dehydrogenation of a low molecular weight saturated hydrocarbon capable of dehydrogenation. The catalyst support using the same has no protrusions on the outer surface of the support, so that the catalyst support can be worn and broken during the process or during transportation. The alumina support in the fluidized bed, where the support is moved from one zone to another by means of additional carrier media, can be prevented, thereby avoiding blockage of several devices in the process by wear and crushed small grains. When used, the effect is more excellent.

Description

구형 알루미나 촉매지지체의 제조방법Method for producing spherical alumina catalyst support

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

Claims (4)

저분자량 포화탄화수소의 탈수소용 촉매지지체의 제조방법에 있어서, 알루미나졸에 약염기가 5∼30%용해된 수용액을 혼합한 후, 이 혼합된 졸용액을 50℃ 이상으로 유지되면서 현탁매개체로 차있는 유리관에 적하시켜 균일한 지름의 구형 알루미나를 수득하는 것을 특징으로 하는 저분자량 포화탄화수소의 탈수소용 촉매지지체의 제조방법.In the method for producing a catalyst support for dehydrogenation of low molecular weight saturated hydrocarbon, after mixing an aqueous solution of 5-30% weak base dissolved in alumina sol, the mixed sol solution is filled with a suspension medium while maintaining the mixed sol solution at 50 ° C or higher. A method for producing a catalyst support for dehydrogenation of low molecular weight saturated hydrocarbons, which is added dropwise to obtain spherical alumina of uniform diameter. 제1항에 있어서, 구형 알루미나는 표면적이 80∼200㎡/g이고 대응하는 겉보기 용적밀도(ABD)가 0.1g/㎤이상인 균일한 지름의 구형 알루미나 촉매지지체인 것을 특징으로 하는 저분자량 포화탄화수소의 탈수소용 촉매지지체의 제조방법.The low molecular weight saturated hydrocarbon of claim 1, wherein the spherical alumina is a spherical alumina catalyst support having a uniform diameter having a surface area of 80 to 200 m < 2 > / g and a corresponding apparent bulk density (ABD) of at least 0.1 g / cm < 3 >. Method for producing a catalyst support for dehydrogenation. 제1항에 있어서, 약염기는 pH 6∼8 사이에서 완충작용을 가지는 다이알릴아민인 것을 특징으로 저분자량 포화탄화수소의 탈수소용 촉매지지체의 제조방법.The method for producing a catalyst support for dehydrogenation of low molecular weight saturated hydrocarbons according to claim 1, wherein the weak base is diallylamine having a buffering action between pH 6 and 8. 제1항에 있어서, 알루미나졸과 약염기 수용액을 1:5 내지 1.5:1의 부피로 혼합하는 것을 특징으로 하는 저분자량 포화탄화수소의 탈수소용 촉매지지체의 제조방법.The method of claim 1, wherein the alumina sol and the weak base aqueous solution are mixed in a volume of 1: 5 to 1.5: 1. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930013323A 1993-07-15 1993-07-15 Process for preparing catalyst support of spherical alumina KR960010901B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930013323A KR960010901B1 (en) 1993-07-15 1993-07-15 Process for preparing catalyst support of spherical alumina

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930013323A KR960010901B1 (en) 1993-07-15 1993-07-15 Process for preparing catalyst support of spherical alumina

Publications (2)

Publication Number Publication Date
KR950002856A true KR950002856A (en) 1995-02-16
KR960010901B1 KR960010901B1 (en) 1996-08-13

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KR1019930013323A KR960010901B1 (en) 1993-07-15 1993-07-15 Process for preparing catalyst support of spherical alumina

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