JPH06296874A - Ethylene decomposition sheet-like catalyst and ethylene decomposition device - Google Patents
Ethylene decomposition sheet-like catalyst and ethylene decomposition deviceInfo
- Publication number
- JPH06296874A JPH06296874A JP11540393A JP11540393A JPH06296874A JP H06296874 A JPH06296874 A JP H06296874A JP 11540393 A JP11540393 A JP 11540393A JP 11540393 A JP11540393 A JP 11540393A JP H06296874 A JPH06296874 A JP H06296874A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- catalyst
- ethylene
- ethylene decomposition
- decomposition catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 78
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000005977 Ethylene Substances 0.000 title claims abstract description 76
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 28
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 239000013078 crystal Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000010419 fine particle Substances 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 229910052878 cordierite Inorganic materials 0.000 claims description 3
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 239000004113 Sepiolite Substances 0.000 claims description 2
- 229910052624 sepiolite Inorganic materials 0.000 claims description 2
- 235000019355 sepiolite Nutrition 0.000 claims description 2
- 229920001059 synthetic polymer Polymers 0.000 claims description 2
- 238000002310 reflectometry Methods 0.000 abstract 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 14
- 239000007789 gas Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 235000012055 fruits and vegetables Nutrition 0.000 description 9
- 239000011941 photocatalyst Substances 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000001877 deodorizing effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002070 germicidal effect Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001609 comparable effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical group Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Storage Of Fruits Or Vegetables (AREA)
- Catalysts (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、青果物の呼吸作用の進
行に伴って発生するエチレンを分解するためのシート状
触媒およびその触媒を使用するエチレン分解装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet catalyst for decomposing ethylene produced by the progress of respiration of fruits and vegetables and an ethylene decomposing apparatus using the catalyst.
【０００２】[0002]
【従来の技術】エチレンガスは青果物の呼吸作用の進行
に伴って発生し、このエチレンガスの作用により青果物
の完熟および老化が促進され、日持ちが悪くなる。した
がって、収穫後の青果物の鮮度を移送期間中もしくは貯
蔵期間中充分に保持するため、これらから発生するエチ
レンガスを効率よく除去することが好ましい。貯蔵中の
青果物の鮮度保持方法としては、エチレンガスを活性
炭、ゼオライト等の吸着剤で除去する方法と、酸化触媒
によって分解除去する方法が広く行われている。しかし
ながら、青果物は一般に湿度が高く炭酸ガス濃度も高い
状態で貯蔵されているので、吸着剤による方法では共存
する水分および炭酸ガスの影響でエチレンガスの高い吸
着除去が困難である。さらに、吸着されたエチレンが脱
着する恐れもあるので、吸着方法により十分なエチレン
除去効率を維持することは期待できない。またエチレン
の除去性能を維持するためには吸着剤をたびたび取り替
えなければならないという不利がある。エチレンガスの
分解除去触媒としては、例えば特開平２−３１２５４１
号公報には、過マンガン酸カリウムを活性アルミナに担
持した保鮮剤が開示されているが、過マンガン酸カリウ
ムはエチレン除去性能は優れているものの毒物であるた
めその取扱いに問題がある。また、特開昭６３−６３３
３９号公報には、パラジウムおよび／または塩化パラジ
ウムと硫酸とを付着させた活性炭からなる鮮度保持剤が
開示されているが、鮮度保持剤をヒ−タ−等の加温手段
で加温する必要があり少なからず青果物の鮮度に悪影響
を与える恐れがある。特開平１−２５２２４４号公報に
は、酸化チタンを含んで構成されるパウダ−状光触媒に
光を照射して励起させエチレンを分解し、農産物の鮮度
を保持するための鮮度保持方法および装置が開示されて
いるが、さらなるエチレン除去性能の改善が期待され
る。そして、これら以外に、出願人はエチレン分解触媒
において本発明に近い技術を知らない。一方、特開平１
−１３９１３９号、特開平２−１０７３３９号、特開平
１−２９３８７６号、特開平１−１３９１３９号、特開
平２−２８０８１８号、特開平３−９４８１４号各公報
の発明は、いずれも脱臭に関する発明であり、エチレン
除去に関するものではなく、本発明とは何の関係もない
が、一応簡単に列挙しておく。特開平１−１３９１３９
号公報には、無機繊維特にガラス繊維よりなる織布ない
し不織布からなる多孔体に光触媒微粒子を含浸担持させ
て多孔体表面に被覆膜を形成し、処理空気を多孔体の多
孔質壁を通過させるように構成した空気の脱臭・殺菌装
置が開示されている。さらに特開平２−１０７３３９号
公報には、反応ガスおよび光が流通可能な三次元網状構
造体に光触媒活性成分として酸化チタンを担持した光触
媒によって、脂肪族化合物、硫黄化合物および窒素化合
物よりなる群のうち少なくとも１種を含有する悪臭ガス
を除去する空気循環系の悪臭除去に好適な空気脱臭装置
が開示されている。特開平１−２９３８７６号公報およ
び特開平１−１３９１３９号公報には内側表面が光触媒
で被覆された筒状体を管状の紫外線光源を囲むように同
軸的に設置した脱臭・殺菌装置が開示されている。ま
た、特開平２−２８０８１８号公報には、波長２５０ｎ
ｍで紫外線強度が２．０ｍＷ／ｃｍ2以上の紫外線を半
導体触媒に照射し、大気中の悪臭成分を分解する光触媒
による脱臭方法が開示されており、半導体触媒は、光源
表面に塗布するか、光源の周囲に支持体を設けてそれに
塗布または、含浸するなどして使用すると教示されてい
る。さらに実施例には、幅３０．３ｍｍ、長さ１２０ｍ
ｍ、厚さ０．５ｍｍのアルミナ−シリカ質のセラミック
ペ−パにチタニアゾルを含浸した後、４００−７００℃
でアナタ−ゼ型二酸化チタンを約３００ｇ／ｍ2担持し
て作成した光触媒が開示されている。特開平３−９４８
１４号公報には、半導体を担持した波板状の光触媒を用
いた脱臭方法が開示されている。さて、本発明者は、先
にエチレンガスをさらに効率よく除去するため、特定の
粒子径を有する酸化チタン微粒子を反応ガスおよび光が
流通可能な白色多孔質担体に担持させ特定温度で焼成す
ることによって疎水性を持ちエチレンガスを飛躍的に効
率よく除去できる白色エチレン分解触媒を見いだし、特
願平４−３５４３１４号を出願した。しかしながら、該
担体がハニカム構造体や三次元網状構造体を有している
ため担持方法が難しく、担体自体の価格が高価であるの
に相まって、結局触媒全体の価格を高いものとしてい
た。2. Description of the Related Art Ethylene gas is generated as the respiration of fruits and vegetables progresses, and the action of ethylene gas accelerates the maturity and aging of fruits and vegetables, resulting in poor shelf life. Therefore, in order to sufficiently maintain the freshness of the fruits and vegetables after harvest during the transfer period or the storage period, it is preferable to efficiently remove ethylene gas generated from these. As a method of maintaining freshness of fruits and vegetables during storage, a method of removing ethylene gas with an adsorbent such as activated carbon or zeolite and a method of decomposing and removing with an oxidation catalyst are widely used. However, since fruits and vegetables are generally stored in a state of high humidity and high concentration of carbon dioxide, it is difficult to remove ethylene gas by adsorption by the method using an adsorbent due to the effect of coexisting water and carbon dioxide. Further, since adsorbed ethylene may be desorbed, it cannot be expected to maintain sufficient ethylene removal efficiency by the adsorption method. There is also the disadvantage that the adsorbent must be replaced frequently in order to maintain the ethylene removal performance. As a catalyst for decomposing and removing ethylene gas, for example, Japanese Patent Application Laid-Open No. 2-312541
The publication discloses a preservative in which potassium permanganate is supported on activated alumina. However, potassium permanganate is a poisonous substance even though it is excellent in removing ethylene, but its handling is problematic. Also, JP-A-63-633
Japanese Patent Laid-Open No. 39 discloses a freshness-retaining agent composed of activated carbon having palladium and / or palladium chloride and sulfuric acid attached thereto, but it is necessary to heat the freshness-retaining agent with a heating means such as a heater. There is a possibility that it may adversely affect the freshness of fruits and vegetables. Japanese Unexamined Patent Publication No. 1-252244 discloses a freshness maintaining method and apparatus for maintaining the freshness of agricultural products by irradiating a powdery photocatalyst containing titanium oxide with light to excite it to decompose ethylene. However, further improvement in ethylene removal performance is expected. And besides these, the applicant is unaware of the technology close to the present invention in the ethylene decomposition catalyst. On the other hand, JP-A-1
The inventions of JP-A-139139, JP-A-2-107339, JP-A-1-293876, JP-A-1-139139, JP-A-2-280818, and JP-A-3-94814 are all related to deodorization. However, it is not related to ethylene removal and has nothing to do with the present invention, but it will be briefly listed. JP-A-1-139139
In the publication, photocatalyst fine particles are impregnated and supported on a porous body made of a woven fabric or a non-woven fabric made of inorganic fibers, particularly glass fibers, to form a coating film on the surface of the porous body, and the treated air passes through the porous wall of the porous body. An air deodorizing and sterilizing device configured to perform the above is disclosed. Further, Japanese Patent Application Laid-Open No. 2-107339 discloses a group consisting of an aliphatic compound, a sulfur compound and a nitrogen compound by a photocatalyst in which titanium oxide is supported as a photocatalytically active component on a three-dimensional network structure through which a reaction gas and light can flow. There is disclosed an air deodorizing device suitable for removing a malodor in an air circulation system that removes a malodorous gas containing at least one of them. JP-A-1-293876 and JP-A-1-139139 disclose deodorizing / sterilizing devices in which a cylindrical body whose inner surface is coated with a photocatalyst is coaxially installed so as to surround a tubular ultraviolet light source. There is. Further, in Japanese Patent Application Laid-Open No. 2-280818, a wavelength of 250 n
A method for deodorizing a semiconductor catalyst by irradiating the semiconductor catalyst with ultraviolet rays having an ultraviolet intensity of 2.0 mW / cm 2 or more in m to decompose a malodorous component in the atmosphere is disclosed. It is taught that a support is provided around the light source and used by being applied or impregnated with the support. Further, in the embodiment, the width is 30.3 mm and the length is 120 m.
400-700 ° C. after impregnating alumina-silica ceramic paper having a thickness of 0.5 mm and a thickness of 0.5 mm with titania sol.
Discloses a photocatalyst prepared by supporting anatase type titanium dioxide at about 300 g / m 2 . JP-A-3-948
Japanese Patent Publication No. 14 discloses a deodorizing method using a corrugated plate-shaped photocatalyst carrying a semiconductor. Now, in order to remove ethylene gas more efficiently, the present inventor supports titanium oxide fine particles having a specific particle diameter on a white porous carrier through which a reaction gas and light can flow and calcinates at a specific temperature. A white ethylene decomposition catalyst having hydrophobicity and capable of dramatically and efficiently removing ethylene gas was found, and Japanese Patent Application No. 4-354314 was filed. However, since the carrier has a honeycomb structure or a three-dimensional network structure, it is difficult to carry the carrier, and the cost of the carrier itself is high.
【０００３】[0003]
【発明が解決しようとする課題】そこで、本発明の目的
は、製法が簡単で安価であるにもかかわらず、光により
極めて高いエチレン分解能を有するシート状エチレン分
解触媒を提供する点にある。SUMMARY OF THE INVENTION It is, therefore, an object of the present invention to provide a sheet-like ethylene decomposition catalyst which has a very high ethylene-decomposing ability by light even though the production method is simple and inexpensive.
【０００４】[0004]
【構成】すなわち、本発明の第１は、１００〜５００オ
ングストローム、好ましくは１５０〜３００オングスト
ロームの結晶粒子径を有する酸化チタン微粒子を高反射
率表面をもつシート状担体に担持させたことを特徴とす
るシート状エチレン分解触媒に関する。According to the first aspect of the present invention, titanium oxide fine particles having a crystal grain size of 100 to 500 angstroms, preferably 150 to 300 angstroms are supported on a sheet-like carrier having a high reflectance surface. The present invention relates to a sheet-shaped ethylene decomposition catalyst.
【０００５】本発明のエチレン分解触媒の一成分は高反
射率表面をもつシート状担体であってその１つとして
は、白色の紙状物がある。他の１つは鏡やアルミニウム
シートのように高い反射率表面を構成する鏡面を有する
シート状物である。前記紙状物の構成要素は、例えばコ
−ジライト、アルミナ、シリカアルミナ、チタニアシリ
カ、ジルコニア、ゼオライト、セピオライト等の白色無
機物または天然、半合成あるいは合成高分子よりなる有
機物である。また、前記シート状物としては、鏡面をも
つ金属シートあるいは合成樹脂シートやフイルムなどに
金属を蒸着したいわゆる金属蒸着シート等を例示するこ
とができる。これらの金属シート類は、耐水性に優れて
おり、シ−トの厚さを選択することによって任意の機械
強度をもたせることができさらに簡便に成形加工でき
る。なお、金属箔使用の場合は、紙、合成樹脂シートな
どの補強材を裏面に積層して使用してもよい。いずれの
シート状担体も、触媒の担持前あるいは担持後に耐水化
処理を行うことができる。One component of the ethylene decomposition catalyst of the present invention is a sheet-like carrier having a high reflectance surface, and one of them is a white paper-like material. The other one is a sheet-like material having a mirror surface forming a high reflectance surface such as a mirror or an aluminum sheet. The constituents of the paper-like material are, for example, white inorganic materials such as cordierite, alumina, silica-alumina, titania silica, zirconia, zeolite and sepiolite, or organic materials composed of natural, semi-synthetic or synthetic polymers. Examples of the sheet-like material include a metal sheet having a mirror surface, a synthetic resin sheet, a so-called metal vapor deposition sheet obtained by vapor-depositing a metal on a film, and the like. These metal sheets are excellent in water resistance, and can have arbitrary mechanical strength by selecting the thickness of the sheet, and can be further easily processed. When a metal foil is used, a reinforcing material such as paper or synthetic resin sheet may be laminated on the back surface for use. Any sheet-shaped carrier can be subjected to water resistance treatment before or after supporting the catalyst.
【０００６】本発明のエチレン分解触媒のもう一つの成
分は光触媒成分であって、金属酸化物半導体系光触媒と
しての酸化チタンである。酸化チタンの結晶粒子経は１
００〜５００オングストローム、好ましくは１５０〜３
００オングストロームのものが特に光によるエチレン分
解能が優れている。光触媒成分の担持量は光源の強さに
依存するが、バインダーとの合計でシート状担体の面積
（ｃｍ2）当たり０．３〜５．０ｍｇ（触媒層の厚さに
換算すると３〜５０μｍ）、好ましくは０．５〜３．０
ｍｇ（触媒層の厚さに換算すると５〜３０μｍ）であ
る。バインダーは、光の透過率のよいシリカ系バインダ
ーが好ましく、触媒成分の重量の１０〜３０％の量で使
用する。Another component of the ethylene decomposition catalyst of the present invention is a photocatalyst component, which is titanium oxide as a metal oxide semiconductor photocatalyst. The crystal grain size of titanium oxide is 1
00-500 angstrom, preferably 150-3
The one having a thickness of 00 angstrom has a particularly excellent ethylene resolution by light. The amount of the photocatalyst component carried depends on the strength of the light source, but the total amount with the binder is 0.3 to 5.0 mg per area (cm 2 ) of the sheet-like carrier (3 to 50 μm when converted to the thickness of the catalyst layer) , Preferably 0.5 to 3.0
mg (5 to 30 μm when converted to the thickness of the catalyst layer). The binder is preferably a silica-based binder having good light transmittance, and is used in an amount of 10 to 30% by weight of the catalyst component.
【０００７】前記シ−ト状エチレン分解触媒は、つぎの
ようにして製造することができる。すなわち、結晶粒子
径１００〜５００オングストローム、好ましくは結晶粒
子径１５０〜３００オングストロームの酸化チタン微粒
子と、酸化チタンの重量の１０〜３０％のバインダーと
水とを混合しスラリー液を調整し、該スラリー液を高反
射率表面をもつシート状担体に塗布することにより、前
記シート状エチレン分解触媒を製造する。シート状担体
に塗布する方法は、浸漬法、エアスプレ−法等の既存の
方法で簡便に効率よく行える。The sheet-like ethylene decomposition catalyst can be produced as follows. That is, a titanium oxide fine particle having a crystal particle size of 100 to 500 angstroms, preferably a crystal particle size of 150 to 300 angstroms, a binder of 10 to 30% by weight of titanium oxide and water are mixed to prepare a slurry liquid, and the slurry is prepared. The sheet-shaped ethylene decomposition catalyst is produced by applying the liquid to a sheet-shaped carrier having a high reflectance surface. As a method for applying to the sheet-shaped carrier, existing methods such as a dipping method and an air spray method can be simply and efficiently performed.
【０００８】本発明の第２は、光によるエチレン分解装
置に関するものであって、（ａ）光源、（ｂ）光源をと
りまき、内面が触媒成分の層である前記シート状エチレ
ン分解触媒の筒状体および（ｃ）前記筒状体内にエチレ
ン含有ガスを導入する手段よりなるものである。シート
状エチレン分解触媒筒状体は、円筒状、多面柱状などを
採ることができる。また、シートに波状を形成してから
筒状にして使用することにより表面積の拡大を計ること
もできる。なお、光の利用効率は低下するが、筒状に加
工しないシート状エチレン分解触媒をそのまま使用する
ことを制限する物ではない。エチレン含有ガスのガス拡
散効率を良くしエチレン分解に必要な触媒の量（受光面
積）を確保するために、光源と触媒表面との距離は少な
くとも１０ｍｍ以上、好ましくは２０ｍｍ以上必要であ
る。即ち、直径１５ｍｍの棒状ランプを用いる場合に
は、筒状体の直径は、３５ｍｍ以上、好ましくは５５ｍ
ｍ以上必要である。A second aspect of the present invention relates to an ethylene decomposition apparatus using light, which comprises (a) a light source and (b) a light source, and the inner surface of which is a layer of a catalyst component and which is a tubular shape of the ethylene decomposition catalyst. The body and (c) means for introducing an ethylene-containing gas into the cylindrical body. The sheet-shaped ethylene decomposition catalyst tubular body may have a cylindrical shape, a polygonal columnar shape, or the like. In addition, the surface area can be increased by forming a corrugated sheet and then using it in a tubular shape. Although the utilization efficiency of light decreases, it does not limit the use of the sheet-shaped ethylene decomposition catalyst that is not processed into a tubular shape as it is. In order to improve the gas diffusion efficiency of the ethylene-containing gas and to secure the amount of the catalyst (light-receiving area) necessary for ethylene decomposition, the distance between the light source and the catalyst surface is at least 10 mm or more, preferably 20 mm or more. That is, when a rod-shaped lamp having a diameter of 15 mm is used, the diameter of the tubular body is 35 mm or more, preferably 55 m.
m or more is required.
【０００９】光源としては、酸化チタンを光科学的に励
起させるものであればよく、３.２ｅＶ以上のバンドギ
ャップを有し、波長が３８８ｎｍ以下の紫外線を放出
し、触媒成分に光エネルギーを供給するものであればよ
い。Any light source may be used as long as it excites titanium oxide photochemically, and it has a band gap of 3.2 eV or more and emits ultraviolet rays having a wavelength of 388 nm or less, and supplies light energy to the catalyst component. Anything can be used.
【００１０】[0010]
【実施例】以下の実施例により本発明を更に詳しく説明
するが、本発明はこれら実施例によって何ら限定される
ものではない。 実施例１ イオン交換水４０００ｇに６０重量％の濃硝酸１０ｇを
加えた溶液に、バインダ−として１０００ｇの日産化学
工業社製のスノーテックス−０（ＳｉＯ2を２０％含
有）を加えて混合した。この溶液に１０００ｇの日本ア
エロジル社製酸化チタン粉末Ｐ−２５をターボミキサー
で混合しながら加え、ＳｉＯ2を３.３重量％、ＴｉＯ2
を１６.７重量％含有するスラリー溶液６０００ｇを得
た。１５０ｍｍ×１７３ｍｍに切断したニチアス（株）
製白色シリカアルミナペーパに、前記スラリー溶液をエ
ア−スプレ−法により均一に塗布した後、１５０℃の温
度でで３時間乾燥して、ＴｉＯ2とＳｉＯ2との合計量で
２．０ｍｇ／ｃｍ2を担持したシ−ト状触媒を得た。得
られたシ−ト状触媒を、直径５５ｍｍ、長さ１５０ｍｍ
の筒状体に丸めた触媒Ａを調製した。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. Example 1 To a solution prepared by adding 10 g of 60% by weight concentrated nitric acid to 4000 g of ion-exchanged water, 1000 g of Snowtex-0 (containing 20% of SiO 2 ) manufactured by Nissan Chemical Industries, Ltd. was added as a binder and mixed. To this solution, 1000 g of titanium dioxide powder P-25 manufactured by Nippon Aerosil Co., Ltd. was added while mixing with a turbo mixer, and 3.3% by weight of SiO 2 and TiO 2 were added.
6000 g of a slurry solution containing 16.7% by weight of was obtained. Nichias Co., Ltd. cut into 150 mm x 173 mm
The slurry solution was uniformly applied to white silica alumina paper manufactured by the air spray method, and then dried at a temperature of 150 ° C. for 3 hours to obtain a total amount of TiO 2 and SiO 2 of 2.0 mg / cm 2. A sheet-like catalyst carrying 2 was obtained. The obtained sheet-shaped catalyst was 55 mm in diameter and 150 mm in length.
To prepare a catalyst A rolled into a cylindrical body.
【００１１】実施例２ 白色シリカアルミナペーパに代え１５０ｍｍ×１７３ｍ
ｍに切断したアルミニウムシ−トを用いたほかは実施例
１と同様にして、ＴｉＯ2とＳｉＯ2との合計量で２．１
ｍｇ／ｃｍ2を担持したシ−ト状触媒を調製し、直径５
５ｍｍ、長さ１５０ｍｍの筒状体に丸めた触媒Ｂを得
た。Example 2 150 mm × 173 m in place of white silica-alumina paper
The total amount of TiO 2 and SiO 2 was 2.1 in the same manner as in Example 1 except that an aluminum sheet cut into m was used.
A sheet-like catalyst supporting mg / cm 2 was prepared, and the diameter was 5
A catalyst B rolled into a cylindrical body having a length of 5 mm and a length of 150 mm was obtained.
【００１２】実施例３ 白色シリカアルミナペーパに代え１５０ｍｍ×１７３ｍ
ｍに切断した白色乾式コピー用紙を用いたたほかは実施
例１と同様にして、ＴｉＯ2とＳｉＯ2との合計量で１．
９ｍｇ／ｃｍ2を担持したシ−ト状触媒を調製し、直径
５５ｍｍ、長さ１５０ｍｍの筒状体に丸めた触媒Ｃを得
た。Example 3 150 mm × 173 m in place of white silica alumina paper
In the same manner as in Example 1 except that a white dry copy paper cut to m was used, the total amount of TiO 2 and SiO 2 was 1.
A sheet-shaped catalyst supporting 9 mg / cm 2 was prepared, and a catalyst C rolled into a tubular body having a diameter of 55 mm and a length of 150 mm was obtained.
【００１３】比較例１（黒色紙の使用） 白色シリカアルミナペーパに代え実施例２の１５０ｍｍ
×１７３ｍｍに切断した白色乾式コピー紙を乾式コピー
機で全面黒色に印刷した黒色紙を用いたほかは実施例１
と同様にして、ＴｉＯ2とＳｉＯ2との合計量で１．９ｍ
ｇ／ｃｍ2を担持したシ−ト状触媒を調製し、直径５５
ｍｍ、長さ１５０ｍｍの筒状体に丸めた触媒Ｘを得た。Comparative Example 1 (Use of Black Paper) 150 mm of Example 2 in place of white silica alumina paper
Example 1 except that black dry paper, which was cut to a size of 173 mm and printed entirely in black by a dry copy machine, was used.
Similarly to the above, the total amount of TiO 2 and SiO 2 is 1.9 m.
A sheet-like catalyst supporting g / cm 2 was prepared and had a diameter of 55
mm to obtain a catalyst X rolled into a tubular body having a length of 150 mm.
【００１４】比較例２（ハニカム担体の使用） ２００セルの白色コージライトハニカム担体（縦５０ｍ
ｍ，横１５０ｍｍ，高さ１５ｍｍ）を、実施例１で調製
したスラリ−溶液に浸漬し、取り出し、余剰のスラリー
を空気を吹き付けて除去した後、１５０℃の温度で６時
間乾燥した。同様の操作を再度繰返し行い乾燥した担体
を５５０℃の温度で１時間焼成し、触媒の容積１リッタ
ー当り６１ｇ（４．０ｍｇ／ｃｍ2に相当）のＴiＯ2を
２００セルのハニカム担体に担持した板状体を調製し
た。この板状体の３枚を用いて、長さ１５０ｍｍの筒状
体よりなる触媒Ｙを得た。Comparative Example 2 (Use of Honeycomb Carrier) 200-cell white cordierite honeycomb carrier (length 50 m)
m, width 150 mm, height 15 mm) was immersed in the slurry solution prepared in Example 1, taken out, and excess slurry was blown with air to remove it, and then dried at a temperature of 150 ° C. for 6 hours. The same operation was repeated again, and the dried carrier was calcined at a temperature of 550 ° C. for 1 hour to support 61 g (corresponding to 4.0 mg / cm 2 ) of TiO 2 per 1 liter of the catalyst volume on a honeycomb carrier of 200 cells. A plate was prepared. A catalyst Y composed of a tubular body having a length of 150 mm was obtained by using the three plate-shaped bodies.
【００１５】エチレン分解能評価試験 波長が２５４ｎｍの紫外線を放出する６Ｗの東芝社製紫
外線殺菌ランプ（ＧＬ−６）を、載架した筒状試料触媒
の中心軸上に挿入載架し、その下方部に大気の循環用の
ファンを設置した１６リッターのガラスケースに、９
９.６％のエチレン１.６ｍｌを注入し、ガラスケース内
のエチレン濃度を１００ｐｐｍに調整した。試料触媒を
設置した後、試料触媒のエチレン吸着性能を見るため、
最初の十分間はファンにより大気を循環させるのみで該
ランプを点燈しないで、エチレン濃度の変化を測定した
が、エチレン濃度は変化せずエチレンは試料触媒には吸
着されていないことがわかった。１０分経過した後、該
ランプを点灯し、点灯後９０分経過後のエチレン濃度を
測定しその結果を表１に示す。Ethylene resolution evaluation test A 6 W ultraviolet germicidal lamp (GL-6) manufactured by Toshiba Corp., which emits ultraviolet rays having a wavelength of 254 nm, was inserted and mounted on the central axis of the mounted cylindrical sample catalyst, and the lower part thereof was placed. In a 16-liter glass case with a fan for air circulation installed in the
1.6 ml of 9.6% ethylene was injected to adjust the ethylene concentration in the glass case to 100 ppm. After installing the sample catalyst, to see the ethylene adsorption performance of the sample catalyst,
During the first ten minutes, the air was circulated by a fan and the lamp was not turned on, and the change in the ethylene concentration was measured. It was found that the ethylene concentration did not change and ethylene was not adsorbed on the sample catalyst. . After 10 minutes, the lamp was turned on, and 90 minutes after the lighting, the ethylene concentration was measured, and the results are shown in Table 1.
【００１６】[0016]
【表１】 触媒の種類 担体の種類 担持量 照射90分後の残存 (mg/cm2) エチレン濃度(ppm) 実施例１ 触媒Ａ セラミックペ−パ− ２．０ ０．４ 実施例２ 触媒Ｂ アルミニウムシ−ト ２．１ ０．６ 実施例３ 触媒Ｃ 白色コピ−紙 １．９ ３．１ 比較例１ 触媒Ｘ 黒色コピ−紙 １．９ ２３．０ 比較例２ 触媒Ｙ ハニカム担体 ４．０ ０．８ 表１より明らかに、本発明の高反射率表面をもつ白色セ
ラミックペ−パ−、アルミニウムシ−トおよび白色コピ
−紙を担体とする触媒Ａ、触媒Ｂおよび触媒Ｃが比較例
１の黒色コピ−紙を担体とする触媒Ｘに比べて、極めて
優れたエチレン分解能を有することが裏付けられ、また
白色ハニカム担体に多量のＴiＯ2を担持した比較例２の
触媒Ｙと比較しても遜色のないエチレン分解能を示すこ
とも明かである。[Table 1] Type of catalyst Type of carrier Supported amount Remaining after 90 minutes of irradiation (mg / cm 2 ) Ethylene concentration (ppm) Example 1 Catalyst A Ceramic paper 2.0 0.4 Example 2 Catalyst B Aluminum sheet 2.1 0.6 Example 3 Catalyst C White copy paper 1.9 3.1 Comparative example 1 Catalyst X Black copy paper 1.9 23.0 Comparative example 2 Catalyst Y Honeycomb carrier 4.0 0.8 It is clear from Table 1 that Comparative Example 1 is a catalyst A, a catalyst B and a catalyst C having a high-reflectance surface white ceramic paper, aluminum sheet and white copy paper of the present invention as a carrier. It is proved that the catalyst has an extremely excellent ethylene decomposing ability as compared with the catalyst X having the black copy paper as a carrier, and is also compared with the catalyst Y of Comparative Example 2 in which a large amount of TiO 2 is supported on the white honeycomb carrier. It is also clear that it shows comparable ethylene resolution.
【００１７】実施例４ 実施例１と同様な方法で、１５０ｍｍ×１７３ｍｍの白
色セラミックペ−パ−、アルミニウムシ−トおよび白色
コピ−紙を担体にそれぞれ触媒の担持量（ＴｉＯ2とＳ
ｉＯ2との合計量）を変えて担持し、上述のエチレン分
解能評価試験を行いその結果を表２に示す。EXAMPLE 4 In the same manner as in Example 1, 150 mm × 173 mm white ceramic paper, aluminum sheet and white copy paper were used as carriers to support the respective amounts of catalyst (TiO 2 and S).
The total amount with iO 2 ) was changed and carried, the above-mentioned ethylene resolution evaluation test was carried out, and the results are shown in Table 2.
【表２】 担体の種類 担持量 触媒層の厚さ 照射90分後の残存 (mg/cm2) μm エチレン濃度(ppm) セラミックペ−パ− ０．７ ７ １０．２ ２．０ ２０ ０．４ ３．３ ３３ ０．８ アルミニウムシ−ト ０．８ ８ １０．０ １．４ １４ ４．４ ２．１ ２１ ０．６ 白色コピ−紙 ０．９ ９ １８．５ １．９ １９ ３．１ ３．３ ３３ ０．８ 表２より明らかに、本発明の白色セラミックペ−パ−、
アルミニウムシ−トおよび白色コピ−紙を用いたいずれ
の触媒についても、触媒層の厚さが、約２０μｍ以上
（担持量に換算すると約２ｍｇ／ｃｍ2以上）であれ
ば、エチレン分解能が優れていることが裏付けられる。[Table 2] Type of carrier Supported amount Thickness of catalyst layer Remaining 90 minutes after irradiation (mg / cm 2 ) μm Ethylene concentration (ppm) Ceramic paper 0.7 7 10.2 2.0 2.0 4 3.3 33 0.8 Aluminum sheet 0.8 8 10.0 10.0 1.4 14 4.4 2.1 21 0.6 White copy paper 0.9 9 18.5 1.9 19 3. 1 3.3 33 0.8 Clearly from Table 2, the white ceramic paper of the present invention,
For any of the catalysts using aluminum sheet and white copy paper, if the thickness of the catalyst layer is about 20 μm or more (about 2 mg / cm 2 or more in terms of the supported amount), the ethylene resolution is excellent. Is supported
【００１８】実施例２で得られた触媒Ｂ（ＴｉＯ2の担
持量２．１ｍｇ／ｃｍ2）の円筒の直径を変えて（すな
わち、触媒面積を変えて）前述のエチレン分解能評価試
験を東芝製（ＧＬ−６）６Ｗ紫外線殺菌ランプおよびプ
リンス社製（ＱＧＵＬＲ−１１）１２Ｗの紫外線殺菌ラ
ンプを用いて行い受光面積（触媒量）の影響を測定し
た。なおエチレン分解能が良好であるので点灯時間を短
縮し点灯後５０分経過後のエチレン濃度を測定しその結
果を表３に示す。The ethylene decomposing ability evaluation test described above was carried out by changing the diameter of the cylinder of catalyst B (TiO 2 supported amount 2.1 mg / cm 2 ) obtained in Example 2 (that is, changing the catalyst area). (GL-6) 6W UV germicidal lamp and Prince's (QGULR-11) 12W UV germicidal lamp were used to measure the effect of the light receiving area (catalyst amount). Since the ethylene resolution is good, the lighting time was shortened and the ethylene concentration was measured 50 minutes after lighting, and the results are shown in Table 3.
【表３】 円筒直径 触媒面積 ＴｉＯ2の量 照射５０分後の残存エチレン濃度(ppm) ｍｍ ｃｍ2 ｇ ６Ｗ １２Ｗ ３５ １６５ ０．３５ ３２．３ ３０．５ ５５ ２５９ ０．５５ ２４．２ １６．１ ７５ ３５３ ０．７５ ２２．２ ３．６ ９５ ４４７ ０．９６ ２１．５ ０．６５ １１５ ５４２ １．１３ ２１．２ ０．５１ 表３より明らかに、光源が６Ｗの場合には光源からの距
離が２０ｍｍ以上（円筒直径５５以上）でエチレン分解
能はほぼ一定になり、光源が１２Ｗの場合には光源から
の距離が４０ｍｍ以上（円筒直径９５以上）でエチレン
分解能はほぼ一定になることが裏付けられる。このこと
は、エチレン分解能はＴｉＯ2の量（光源からの距離）
および光源の強さに依存するものの、光源から特定の距
離以上ではエチレン分解能は光源の強さに応じたほぼ一
定の値を示すことを裏付けるものである。Table 3 Cylinder diameter Catalyst area Amount of TiO 2 Residual ethylene concentration (ppm) 50 minutes after irradiation mm cm 2 g 6W 12W 35 165 0.35 32.3 30.5 55 259 0.55 24.2 16. 1 75 353 0.75 22.2 3.6 95 447 0.96 21.5 0.65 115 542 1.13 21.2 0.51 It is clear from Table 3 that when the light source is 6 W, It is confirmed that the ethylene resolution becomes almost constant when the distance is 20 mm or more (cylindrical diameter 55 or more), and when the light source is 12 W, the ethylene resolution becomes almost constant when the distance from the light source is 40 mm or more (cylindrical diameter 95 or more). To be This means that the ethylene resolution is the amount of TiO 2 (distance from the light source)
And, although it depends on the intensity of the light source, it supports that the ethylene resolution shows a substantially constant value according to the intensity of the light source at a certain distance or more from the light source.
【００１９】実施例５ 実施例２で得られた触媒Ｂ（ＴｉＯ2の担持量２．１ｍ
ｇ／ｃｍ2）のＴｉＯ2の担持量を４．６ｍｇ／ｃｍ2に
増やし、かつ、触媒を担持した円筒の直径を変えて、同
様にプリンス社製（ＱＧＵＬＲ−１１）１２Ｗの紫外線
殺菌ランプを用いて点灯後５０分経過後のエチレン濃度
を測定し、エチレン分解能評価試験を行いその結果を表
４に示す。 （以下余白）Example 5 Catalyst B obtained in Example 2 (support amount of TiO 2 2.1 m
g / cm 2 ) of TiO 2 supported amount was increased to 4.6 mg / cm 2 , and the diameter of the catalyst-supporting cylinder was changed, and a 12 W ultraviolet sterilization lamp manufactured by Prince (QGULR-11) was similarly used. The ethylene concentration was measured 50 minutes after lighting, and an ethylene resolution evaluation test was conducted. The results are shown in Table 4. (Below margin)
【表４】 円筒直径 触媒面積 ＴｉＯ2の量 照射５０分後の残存エチレン濃度(ppm) ｍｍ ｃｍ2 ｇ １２Ｗ ３５ １６５ ０．７６ １．８ ５５ ２５９ １．２０ １．４ ７５ ３５３ １．６３ ０．５４ ９５ ４４７ ２．０９ ０．２８ １１５ ５４２ ２．４８ ０．２１ 表４より明らかに、光源からの距離が４０ｍｍ以上（円
筒直径９５以上）でエチレン分解能はほぼ一定になるこ
とが裏付けられ、エチレン分解能も触媒の担持量に伴い
増加していることが裏付けられる。Table 4 Cylinder diameter Catalyst area Amount of TiO 2 Residual ethylene concentration after 50 minutes irradiation (ppm) mm cm 2 g 12W 35 165 0.76 1.8 55 259 1.20 1.4 75 75 353 1.63 0 .54 95 447 2.09 0.28 115 542 2.48 0.21 It is clear from Table 4 that the ethylene resolution is almost constant when the distance from the light source is 40 mm or more (cylindrical diameter 95 or more), It is confirmed that the ethylene decomposability also increases with the amount of catalyst loaded.
【００２０】[0020]
【効果】本発明は、平成４年１２月１５日に出願した本
出願人の多孔質担体を用いた発明に較べて、シート状の
簡便な担体を用いたものであるにもかかわらず、それに
匹敵する効果を奏する。したがって、本発明の触媒は青
果物から発生するエチレンを除去し、青果物の鮮度保持
期間を延長するのに極めて有効である。[Effect] Although the present invention uses a simple carrier in the form of a sheet as compared with the invention using the porous carrier of the applicant filed on December 15, 1992, It has a comparable effect. Therefore, the catalyst of the present invention is very effective in removing ethylene generated from fruits and vegetables and extending the freshness retention period of fruits and vegetables.
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｊ 21/06 Ｍ 8017−4Ｇ // Ａ２３Ｂ 7/144 9281−4Ｂ Continuation of front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location B01J 21/06 M 8017-4G // A23B 7/144 9281-4B
Claims (9)
粒子径を有する酸化チタン微粒子を高反射率表面をもつ
シート状担体に光の透過性の良いバインダ−を用いて担
持させたことを特徴とするシート状エチレン分解触媒。1. Titanium oxide fine particles having a crystal grain size of 100 to 500 angstroms are carried on a sheet-like carrier having a high reflectance surface by using a binder having a good light transmission property. Sheet-shaped ethylene decomposition catalyst.
物またはシート状物である請求項１記載のシート状エチ
レン分解触媒。2. The sheet-like ethylene decomposition catalyst according to claim 1, wherein the sheet-like carrier having a high reflectance surface is a paper-like material or a sheet-like material.
シリカアルミナ、チタニアシリカ、ジルコニア、ゼオラ
イトもしくはセピオライトからなる白色無機物または天
然、半合成あるいは合成高分子よりなる白色有機物より
なるものである請求項２記載のシート状エチレン分解触
媒。3. The paper-like material is cordierite, alumina,
The sheet-shaped ethylene decomposition catalyst according to claim 2, which is composed of a white inorganic substance made of silica-alumina, titania silica, zirconia, zeolite or sepiolite or a white organic substance made of natural, semi-synthetic or synthetic polymer.
項２記載のシート状エチレン分解触媒。4. The sheet-shaped ethylene decomposition catalyst according to claim 2, wherein the sheet-shaped material is a metal sheet.
求項４記載のシート状エチレン分解触媒。5. The sheet-shaped ethylene decomposition catalyst according to claim 4, wherein the metal sheet is an aluminum sheet.
グストロームの結晶粒子径を有する請求項１、２、３、
４または５記載のシート状エチレン分解触媒。6. The titanium oxide fine particles have a crystal particle size of 150 to 300 angstroms.
The sheet-shaped ethylene decomposition catalyst according to 4 or 5.
請求項１、２、３、４、５または６記載のシート状エチ
レン分解触媒。7. The sheet-shaped ethylene decomposition catalyst according to claim 1, 2, 3, 4, 5, or 6, wherein the binder is a silica-based binder.
０％の量である請求項１、２、３、４、５、６または７
記載のシート状エチレン分解触媒。8. The binder is 10 to 3 by weight of the catalyst component.
Amounts of 0%, 1, 2, 3, 4, 5, 6 or 7.
The sheet-shaped ethylene decomposition catalyst described.
面が触媒成分の層である請求項１、２、３、４、５、
６、７または８記載のシート状エチレン分解触媒の筒状
体および（ｃ）前記筒状体内にエチレン含有ガスを導入
する手段よりなることを特徴とするエチレン分解装置。9. A light source surrounding (a) a light source and (b) a light source, wherein the inner surface is a layer of a catalyst component.
An ethylene decomposition apparatus comprising a cylindrical body of the sheet-shaped ethylene decomposition catalyst according to 6, 7, or 8 and (c) means for introducing an ethylene-containing gas into the cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11540393A JP3554343B2 (en) | 1993-04-19 | 1993-04-19 | Sheet-shaped ethylene cracking catalyst and ethylene cracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11540393A JP3554343B2 (en) | 1993-04-19 | 1993-04-19 | Sheet-shaped ethylene cracking catalyst and ethylene cracking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06296874A true JPH06296874A (en) | 1994-10-25 |
| JP3554343B2 JP3554343B2 (en) | 2004-08-18 |
Family
ID=14661711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11540393A Expired - Lifetime JP3554343B2 (en) | 1993-04-19 | 1993-04-19 | Sheet-shaped ethylene cracking catalyst and ethylene cracking device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3554343B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171408A (en) * | 1993-06-28 | 1995-07-11 | Ishihara Sangyo Kaisha Ltd | Photocatalytic body and its production |
| JPH09313887A (en) * | 1996-05-28 | 1997-12-09 | Agency Of Ind Science & Technol | Photocatalyst sheet |
| JP2009167097A (en) * | 1995-03-20 | 2009-07-30 | Toto Ltd | Photocatalytic member |
| JP2010240053A (en) * | 2009-04-02 | 2010-10-28 | Panasonic Corp | Photocatalyst deodorizer |
| JP2015126732A (en) * | 2013-12-27 | 2015-07-09 | プラスティックス インダストリー デベロップメント センター | Material for reducing aging or decomposition speed of plants such as fruits and vegetables and method of producing the same |
| CN111155388A (en) * | 2019-12-31 | 2020-05-15 | 赵梓权 | Photocatalytic pavement paving method |
-
1993
- 1993-04-19 JP JP11540393A patent/JP3554343B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171408A (en) * | 1993-06-28 | 1995-07-11 | Ishihara Sangyo Kaisha Ltd | Photocatalytic body and its production |
| US6498000B2 (en) | 1993-06-28 | 2002-12-24 | Ishihara Sangyo Kaisha, Ltd. | Photocatalyst composite and process for producing the same |
| JP2009167097A (en) * | 1995-03-20 | 2009-07-30 | Toto Ltd | Photocatalytic member |
| JPH09313887A (en) * | 1996-05-28 | 1997-12-09 | Agency Of Ind Science & Technol | Photocatalyst sheet |
| JP2010240053A (en) * | 2009-04-02 | 2010-10-28 | Panasonic Corp | Photocatalyst deodorizer |
| JP2015126732A (en) * | 2013-12-27 | 2015-07-09 | プラスティックス インダストリー デベロップメント センター | Material for reducing aging or decomposition speed of plants such as fruits and vegetables and method of producing the same |
| CN111155388A (en) * | 2019-12-31 | 2020-05-15 | 赵梓权 | Photocatalytic pavement paving method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3554343B2 (en) | 2004-08-18 |
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