JP2005254039A - Catalyst for reforming fuel oil - Google Patents

Catalyst for reforming fuel oil Download PDF

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JP2005254039A
JP2005254039A JP2004065206A JP2004065206A JP2005254039A JP 2005254039 A JP2005254039 A JP 2005254039A JP 2004065206 A JP2004065206 A JP 2004065206A JP 2004065206 A JP2004065206 A JP 2004065206A JP 2005254039 A JP2005254039 A JP 2005254039A
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silver
fuel oil
reforming catalyst
particulate matter
catalyst
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Kenji Nakamura
憲司 中村
Koji Nakamura
興司 中村
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a reforming catalyst reducing nitrogen oxide and particulate substance by improving burning efficiency of a fuel oil. <P>SOLUTION: The reforming catalyst for reducing the nitrogen oxide and the particulate substance of the fuel oil is a burned molded body formed by silver-substituted zeolite for emitting a silver ion; and a quartz porphyry powder containing K-40 for emitting β ray. The emission intensity of the silver ion of the silver-substituted zeolite is 10-100 ppb and the irradiation intensity of the β ray of the quartz porphyry powder is 1-5 Bq/g. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、燃焼効率の改善により燃料油からの排気ガスの浄化を目的とする燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒に関する。
更に詳しくは、本発明は、10〜100ppbの濃度の銀イオンを放出する銀置換ゼオライトと、β線の放射濃度が1〜5Bq/gのK-40を含む石英斑岩粉末よりなる2成分を焼成した成形体よりなる改質用触媒を燃料油に添加して、銀イオンの触媒作用とβ線による油分子のクラスターの微細化の相乗作用により燃焼効率を改善して、窒素酸化物及び粒子状物質の低減及び排気ガスの浄化作用等を改善する燃料油の改質用触媒に関する。
The present invention relates to a reforming catalyst that reduces nitrogen oxides and particulate matter in fuel oil for the purpose of purifying exhaust gas from fuel oil by improving combustion efficiency.
More specifically, the present invention comprises two components consisting of a silver-substituted zeolite that releases silver ions at a concentration of 10 to 100 ppb, and quartz porphyry powder containing K-40 having a β-ray radiation concentration of 1 to 5 Bq / g. A reforming catalyst consisting of a calcined compact is added to the fuel oil to improve combustion efficiency by synergistic action of silver ion catalysis and refinement of oil molecule clusters by β-rays. The present invention relates to a fuel oil reforming catalyst that improves the reduction of particulate matter and the purification action of exhaust gas.

従来、大気汚染防止や環境保全等の上から、内燃機関での燃料油の燃焼により排出される窒素酸化物及び粒子状物質の低減化を図るため、総理府令第53号により特別措置法施行規則に則って多くの開発がなされている。この低減化方法としては、大きくは2つの方法があり、その一つは排気ガスを対象として付設装置等にの浄化触媒により排気ガス中の不純物を浄化する方法と、燃料油自体を改質して内燃機関における燃料油の完全燃焼によって不純物の発生を抑制する改質用触媒による方法である。
前者の浄化触媒によって排気ガス中の不純物を除去する方法としては、例えばセラミック・ハニカム体に触媒成分として白金、パラジウム、金、銀、銅、亜鉛、バナジウム、ロジウム又はモリブデン等より選ばれた元素を担持した浄化触媒(特許文献1)、チタニアよりなる三次元構造体の表面に、パラジウム、白金又はロジウムから選ばれた1種と、金、銀、銅又は亜鉛より選ばれた1種を担持したディーゼルエンジン排気ガス浄化用触媒(特許文献2)、ニッケル発泡基材上に銀触媒と還元剤の存在下に200〜600℃で接触させて、排気ガス中の窒素酸化物を低下させる触媒(特許文献3)、白金、ロジウム、金、銀、パラジウム、ルテニウム又はイリジウムより選ばれた金属と、酸化ウランを組み合わせ、多孔質体に担持した触媒(特許文献4)等、多くは白金や銀触媒が使われるが、銀触媒単独では不純物の除去効果が乏しいので、他の成分を加えるのが一般的である。しかし、白金はもとより銀が高価であるから、これらの触媒は経済的とは言えず、排気ガスを浄化するために排気管に装置を設置する場合にもハイコストで、有害排出物の浄化効果の上からも有効とは言えなかった。
In order to reduce nitrogen oxides and particulate matter emitted from the combustion of fuel oil in internal combustion engines from the viewpoint of air pollution prevention and environmental protection, etc. Many developments have been made. There are two main methods for reducing this, one of which is to purify impurities in the exhaust gas by using a purification catalyst in an attached device for exhaust gas, and the other is to reform the fuel oil itself. This is a method using a reforming catalyst that suppresses generation of impurities by complete combustion of fuel oil in an internal combustion engine.
As a method for removing impurities in the exhaust gas by the former purification catalyst, for example, an element selected from platinum, palladium, gold, silver, copper, zinc, vanadium, rhodium, molybdenum or the like as a catalyst component in a ceramic honeycomb body is used. On the surface of the supported purification catalyst (Patent Document 1) and a three-dimensional structure made of titania, one kind selected from palladium, platinum or rhodium and one kind selected from gold, silver, copper or zinc were supported. Catalyst for purifying diesel engine exhaust gas (Patent Document 2), catalyst for reducing nitrogen oxides in exhaust gas by contacting at 200-600 ° C in the presence of a silver catalyst and a reducing agent on a nickel foam substrate (patent) Reference 3), a catalyst in which a metal selected from platinum, rhodium, gold, silver, palladium, ruthenium or iridium and uranium oxide are combined and supported on a porous body Patent Document 4), etc., many used platinum or silver catalyst, the silver catalyst alone because poor effect of removing impurities, to add the other components are common. However, since silver is expensive as well as platinum, these catalysts are not economical, and even when equipment is installed in the exhaust pipe to purify the exhaust gas, the cost is high and the effect of purifying harmful emissions It was not effective from above.

これに対して、後者の燃料油自体を改質して燃料油の燃焼効率を向上させる技術としては、代表的には無機質の基材又は金属の基材の表面に、(a)アルキルシラン及びジルコニウム化合物、(b)銀塩又はコロイダル銀を含有するゼオライト、シリカゲル、アルミノ珪酸塩及びアルミノシリカゲルより選ばれた化合物、(c)アルコール及び(d)水成分を混合して得られる組成物を主成分として、銀を含有するコーティング剤で加工して得られた改質用触媒を燃料油に添加して燃焼効率を改善する技術(特許文献5)、天然ゼオライト鉱物の粉体と銀粉体を球形形状に焼成したセラミック成形体を各種燃料類の炭化水素に添加することによって燃焼効率を改善する技術(引用文献6)等、銀とゼオライトの組合せのものが知られている。   On the other hand, as a technique for improving the combustion efficiency of the fuel oil by reforming the latter fuel oil itself, typically, the surface of an inorganic base material or a metal base material, (a) an alkylsilane and A composition obtained by mixing a zirconium compound, (b) a zeolite containing silver salt or colloidal silver, a compound selected from silica gel, aluminosilicate and aluminosilica gel, (c) alcohol and (d) a water component. A technology for improving combustion efficiency by adding a reforming catalyst obtained by processing with a coating agent containing silver as a component to fuel oil (Patent Document 5), a powder of natural zeolite mineral and silver powder A combination of silver and zeolite is known, such as a technique for improving combustion efficiency by adding a ceramic compact fired into a spherical shape to hydrocarbons of various fuels (Cited document 6).

後者の燃料油の改質用触媒は、いずれも燃料油に含まれる炭化水素類の分子集団を微細化して燃焼効率を改善するもので、油中の凝集分子が銀との触媒反応により炭化水素が励起状態になり、酸化反応によって生ずるラジカルが消去され、重合が阻止されて油の凝集分子が細分化して霧化され、燃料効率が向上して排気ガス中の窒素酸化物及び粒子状物質を減少させるものであるが、その除去効率において満足いくものではなかった。
これら改質用触媒では、銀を触媒として用いる場合、銀を無機基材に担持するだけでは効果が少なく、白金やパラジウムと組み合わせるか、ニッケル等の発泡基材上に担持するか、他の成分と組み合わせて複合的に改善することが技術開発の主流となっているが、従来技術では、窒素酸化物を低減しようとすると、粒子状物質が増加し、逆に炭素微粒子を減少させようとすると、窒素酸化物が増加し、窒素酸化物と粒子状物質の双方が同時に低減する技術は存在しなかった。勿論、銀イオンによる触媒効果と鉱物成分のβ線照射によって、排気ガス中の不純物の減少化について言及する報告は全くなされていない。
The latter fuel oil reforming catalysts all improve the combustion efficiency by refining the molecular group of hydrocarbons contained in the fuel oil, and the agglomerated molecules in the oil undergo hydrocarbon reaction through catalytic reaction with silver. Becomes an excited state, radicals generated by the oxidation reaction are erased, polymerization is blocked, oil agglomerated molecules are fragmented and atomized, fuel efficiency is improved, and nitrogen oxides and particulate matter in the exhaust gas are removed. Although it is a decrease, the removal efficiency is not satisfactory.
In these reforming catalysts, when silver is used as a catalyst, it is less effective if only silver is supported on an inorganic base material, which is combined with platinum or palladium, supported on a foam base material such as nickel, or other components. In combination with the above, it is the mainstream of technology development, but in the conventional technology, when trying to reduce nitrogen oxides, particulate matter increases, and conversely, when trying to reduce carbon fine particles However, there has been no technique for increasing nitrogen oxides and simultaneously reducing both nitrogen oxides and particulate matter. Of course, there is no report that mentions the reduction of impurities in exhaust gas due to the catalytic effect of silver ions and β-ray irradiation of mineral components.

特開平3−249948号公報JP-A-3-249948 特開平4−250851号公報JP-A-4-250851 特開平7−096145号公報Japanese Patent Laid-Open No. 7-096145 特開平3−207445号公報Japanese Patent Laid-Open No. 3-207445 特開平7−000828号公報Japanese Unexamined Patent Publication No. 7-000828 特開平7−265707号公報JP 7-265707 A

本発明は、燃料油の燃焼効率を改善して窒素酸化物及び粒子状物質を低減するために、燃料油に添加して用いる改質用触媒を提供するものである。
すなわち、本発明では、銀イオンが燃料油の燃焼効率改善のための触媒作用が優れていることに着目し、これに1〜5Bq/gの範囲の放射濃度のβ線の照射可能な鉱物成分を併用することによって燃料油分子の微細化を高め、排気ガス中の窒素酸化物や粒子状物質の発生を同時に低減化し、排気ガスの浄化を可能とするものである。
The present invention provides a reforming catalyst used by adding to fuel oil in order to improve the combustion efficiency of fuel oil and reduce nitrogen oxides and particulate matter.
That is, in the present invention, attention is paid to the fact that silver ions are excellent in catalytic action for improving the combustion efficiency of fuel oil, and this is a mineral component that can be irradiated with β-rays having a radiation concentration in the range of 1 to 5 Bq / g. In combination with this, the refinement of fuel oil molecules is increased, the generation of nitrogen oxides and particulate matter in the exhaust gas is simultaneously reduced, and the exhaust gas can be purified.

本発明は、以下の構成を基本とするものである。
(1)銀イオンを放出する銀置換ゼオライトと、β線を放出するK-40を含有する石英斑岩粉末とから形成された焼成成形体であることを特徴とする燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒。
(2)上記銀置換ゼオライトの銀イオンの放出濃度が10〜100ppbであり、K-40を含有する石英斑岩粉末のβ線の放射濃度が1〜5Bq/gであることを特徴とする上記(1)に記載の燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒。
(3)上記銀置換ゼオライト及び石英斑岩粉末が個々の焼成成形体又は上記2成分を配合した焼成成形体であって、且つ、上記成形体が、球状、板状、筒状、ハニカム状又は発泡体より選ばれた形状であることを特徴とする(1)又は(2)に記載の燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒。
(4)上記燃料油が、軽油であることを特徴とする(1)〜(3)のいずれかに記載の燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒。
The present invention is based on the following configuration.
(1) Nitrogen oxide of fuel oil, characterized by being a calcined molded body formed from a silver-substituted zeolite that releases silver ions and a quartz porphyry powder containing K-40 that emits β rays, and A reforming catalyst that reduces particulate matter.
(2) The silver-substituted zeolite has a silver ion release concentration of 10 to 100 ppb, and a quartz porphyry powder containing K-40 has a β-ray radiation concentration of 1 to 5 Bq / g. A reforming catalyst that reduces nitrogen oxides and particulate matter in the fuel oil according to (1).
(3) The silver-substituted zeolite and the quartz porphyry powder are individual fired compacts or fired compacts containing the two components, and the compact is spherical, plate-shaped, cylindrical, honeycomb-shaped or The reforming catalyst for reducing nitrogen oxides and particulate matter in fuel oil according to (1) or (2), wherein the reforming catalyst has a shape selected from foams.
(4) The reforming catalyst for reducing nitrogen oxides and particulate matter of fuel oil according to any one of (1) to (3), wherein the fuel oil is light oil.

本発明の改質用触媒は、内燃機関内において噴霧される燃料油のクラスターを小さくして、霧化を微細にする作用において、銀イオンの効果と1〜5Bq/gのβ線照射との相乗効果が発揮され、炭化水素油の完全燃焼がより完全に達成できる。
すなわち、本発明では10〜100ppbの銀イオン濃度の放出可能な銀置換ゼオライトと1〜5Bq/gのβ線放射可能な鉱物成分とからなるセラミックス焼成体を、燃料油の改質用触媒として燃料油基準で0.5〜10重量%を添加することにより、燃焼効率を大幅に向上させて排気ガスに含まれる不純物、特に窒素酸化物及び粒子状物質の双方の発生を同時に低減させる顕著な効果がある。
The reforming catalyst of the present invention reduces the cluster of fuel oil sprayed in an internal combustion engine to make atomization finer, and has the effect of silver ions and 1-5 Bq / g β-ray irradiation. A synergistic effect is exhibited and complete combustion of the hydrocarbon oil can be achieved more completely.
That is, in the present invention, a ceramic fired body comprising a silver-substituted zeolite capable of releasing silver ions of 10 to 100 ppb and a mineral component capable of emitting 1 to 5 Bq / g of β-rays is used as a fuel oil reforming catalyst. By adding 0.5 to 10% by weight based on oil, the combustion efficiency is greatly improved, and there is a remarkable effect of simultaneously reducing the generation of impurities, particularly nitrogen oxides and particulate matter, contained in the exhaust gas. .

本発明では、銀イオンを放出する銀置換ゼオライトと、β線を放出するK-40を含有する石英斑岩粉末とから形成された焼成成形体を燃料油の改質用触媒として使用するが、上記成形体における銀置換ゼオライトの銀イオンの放出濃度は、10〜100ppbであり、K-40を含有する石英斑岩粉末のβ線の放射濃度が1〜5Bq/gである。
上記改質用触媒の一方の成分として使用する銀置換ゼオライトは、A型、Y型又はW型の結晶のものを用いることができるが、その中でもW型が好ましい。また、銀含有率は、ゼオライト中、0.5〜1.0重量%程度にすることで、銀イオンの放出を10〜100ppbにすることができる。また、銀置換ゼオライトから放出される銀イオンが10〜100ppbの濃度の範囲では、燃料油の燃焼時の燃焼効率を高めることができるが、銀イオンが10ppb以下では触媒効果が少ない。100ppb以上の銀イオンを含有することは経済上、利益がない。
In the present invention, a sintered compact formed from a silver-substituted zeolite that releases silver ions and a quartz porphyry powder containing K-40 that emits β-rays is used as a fuel oil reforming catalyst. The silver-substituted zeolite has a silver ion release concentration of 10 to 100 ppb in the molded body, and a β-ray radiation concentration of the quartz porphyry powder containing K-40 is 1 to 5 Bq / g.
As the silver-substituted zeolite used as one component of the reforming catalyst, A-type, Y-type or W-type crystals can be used, and among these, W-type is preferable. The silver content can be reduced to 10 to 100 ppb by setting the silver content to about 0.5 to 1.0% by weight in the zeolite. Further, when the silver ions released from the silver-substituted zeolite are in the concentration range of 10 to 100 ppb, the combustion efficiency at the time of combustion of the fuel oil can be increased, but when the silver ions are 10 ppb or less, the catalytic effect is small. Containing silver ions of 100 ppb or more is not economically beneficial.

また、上記改質用触媒は、銀置換ゼオライト及び石英斑岩粉末の個々の焼成成形体又は上記2成分を配合した焼成成形体よりなるが、上記銀置換ゼオライト及び/又はβ線照射鉱物物質の成形体を得るための焼成温度は、700℃以下、好ましくは600℃以下がよい。それ以上の温度で焼成すると、ゼオライトの結晶が溶融して銀イオンが放出されなくなる。また、ゼオライト中に銀含有といっても、金属銀の状態で含有されていても触媒効果は少なく、燃焼効率改善のために銀イオンを放出しようとすると、銀イオン状態でゼオライトに担持されていることが肝要である。銀イオンを放出させる化合物としては、外にガラス、銀・燐酸ジルコニウム、銀・アパタイト等が知られているが、本発明で使用する銀置換ゼオライトに比して銀イオンの放出量が少なく、触媒効果は乏しい。
さらに、上記焼成成形体の形状は、球状、板状、筒状又はハニカム状を用いることができるが、球状では3〜10mmのものをネット状袋に入れて燃料油に投入することができる。発泡体に焼成して用いることも有効である。
The reforming catalyst is composed of an individual fired molded body of silver-substituted zeolite and quartz porphyry powder or a fired molded body in which the two components are blended, and the silver-substituted zeolite and / or β-irradiated mineral substance The firing temperature for obtaining the molded body is 700 ° C. or lower, preferably 600 ° C. or lower. When calcined at a temperature higher than that, the zeolite crystals melt and silver ions are not released. In addition, even if the zeolite contains silver or it is contained in the form of metallic silver, the catalytic effect is small, and if it is attempted to release silver ions to improve combustion efficiency, it is supported on the zeolite in the silver ion state. It is important to be. As compounds that release silver ions, glass, silver / zirconium phosphate, silver / apatite, and the like are also known. However, the amount of silver ions released is small compared to the silver-substituted zeolite used in the present invention, and the catalyst. The effect is poor.
Furthermore, as the shape of the fired molded body, a spherical shape, a plate shape, a cylindrical shape, or a honeycomb shape can be used, but in the case of a spherical shape, a 3 to 10 mm one can be put into a net-like bag and put into fuel oil. It is also effective to fire and use the foam.

本発明で改質用触媒の他方の成分として使用する鉱物物質は、天然に存在する核種の場合、固形物では370Bq/g以上の濃度を規制の対象(法律第167号)となっており、核燃料物質の規制では、金属ウラン換算で300g、金属トリウム換算で900g以上が規制対象の量とされているが、1〜5Bq/gのβ線を放射するK-40を含む天然鉱物は、いずれの法律においても規制対象にはなっていない。
本発明で用いるβ線を照射するK-40は、下表1に示すような放射濃度を有するものであり、その半減期は非常に長い核種であり、天然に広く存在し、我々の身体中、食物、野菜、果物にも一定量含まれている。
In the present invention, the mineral substance used as the other component of the reforming catalyst, in the case of a nuclide that exists in nature, is subject to regulation (law No. 167) at a concentration of 370 Bq / g or more in the case of solids In the regulation of nuclear fuel material, 300g in terms of metal uranium and 900g or more in terms of metal thorium are regulated, but any natural mineral containing K-40 that emits 1-5Bq / g β-ray The law is not subject to regulation.
K-40 which irradiates β rays used in the present invention has a radiation concentration as shown in Table 1 below, and its half-life is a very long nuclide, which is widely present in nature, Also included in food, vegetables and fruits.

本発明の改質用触媒では、焼成成形体において1〜5Bq/gのβ線の放出濃度が必要とされているが、この濃度であれば人や環境に安全であり、取扱いも容易であり、経済的にも安価である。
そして、K-40を含有してβ線を1〜5Bq/g放出する鉱物成分としては、四国の道後の奥山中より産する下表2の成分比を有する石英斑岩に属する鉱石が適当である。
In the reforming catalyst of the present invention, 1 to 5 Bq / g β-ray emission concentration is required in the calcined molded body. This concentration is safe for humans and the environment and easy to handle. Economical and inexpensive.
As mineral components that contain K-40 and emit 1 to 5 Bq / g of β-rays, ores belonging to quartz porphyry having component ratios shown in Table 2 below from Okuyama in Dogo, Shikoku are suitable. is there.

本発明の改質用触媒は、軽油の燃焼効率を改善して窒素酸化物及び粒子状物質の双方を低減するので、灯油にも利用できるが、特にディーゼルエンジンの排ガスの浄化に有効である。
すなわち、本発明による改質触媒は、燃料油に対して1〜10重量%用いることによって効果を発揮することができるが、触媒の使用の方法は、燃料油中に改質触媒成形体を袋などに入れて投入、浸漬させるようにすればよい。浸漬時間は、少なくとも1時間程度は必要で、これ以上にすることによって、燃料油中に放出濃度10〜100ppb程度の銀イオン及びK-40を含有する石英斑岩粉末のβ線の放射濃度が1〜5Bq/g程度放出されるので、所期の目的を達成することができる。
The reforming catalyst of the present invention improves the light oil combustion efficiency and reduces both nitrogen oxides and particulate matter. Therefore, the reforming catalyst can be used for kerosene, but is particularly effective for purifying exhaust gas from diesel engines.
That is, the reforming catalyst according to the present invention can exert an effect by using 1 to 10% by weight with respect to the fuel oil. What is necessary is just to make it put in and soak in. The immersion time should be at least about 1 hour, and by increasing the immersion time, the β-ray radiation concentration of the quartz porphyry powder containing silver ions and K-40 with a release concentration of about 10 to 100 ppb in the fuel oil can be increased. Since about 1 to 5 Bq / g is released, the intended purpose can be achieved.

実施例により本発明を更に説明するが、本発明はこれら実施例に限定されるものではない。   Examples The present invention will be further described with reference to examples, but the present invention is not limited to these examples.

<実施例>
(触媒の調製)
○K-40触媒の調製;1〜5Bq/gのβ線を放射するK-40を含む鉱物物質として、上述する四国道後の奥山より産出する石英斑岩を使用する。
この石英斑岩のバインダーとしてベントナイト(10重量%配合)を用いて球体(4mmφ)に成形して500℃で焼成して、K-40触媒(「試料K」)を得た。
<Example>
(Preparation of catalyst)
○ Preparation of K-40 catalyst: As a mineral substance containing K-40 that emits 1 to 5 Bq / g of β-rays, quartz porphyry produced from Okuyama after Shikoku road is used.
Using bentonite (containing 10 wt%) as a binder for this quartz porphyry, it was molded into a sphere (4 mmφ) and fired at 500 ° C. to obtain a K-40 catalyst (“Sample K”).

○銀置換ゼオライト触媒の調製;ゼオライトに対して銀含有率0.6重量%(AZ-2)、1.0重量%(AZ-3)及び2.2重量%(AZ-4)を含有せしめ、バインダーとして、ベントナイト10重量%を用いて4mmφの球体に成形して500℃で焼成し、銀置換ゼオライト触媒を得た。上記各触媒は、銀含有率0.6重量%のものを「AZ-2」、1.0重量%のものを「AZ-3」及び2.2重量%のものを「AZ-4」とした。
なお、対比例として銀0重量%のものを「AZ-1」とした。
-Preparation of a silver-substituted zeolite catalyst; containing 0.6% by weight (AZ-2), 1.0% by weight (AZ-3) and 2.2% by weight (AZ-4) of the silver content to the zeolite, and bentonite 10 as a binder Using 4% by weight, a 4 mmφ sphere was molded and calcined at 500 ° C. to obtain a silver-substituted zeolite catalyst. For each of the above catalysts, the silver content of 0.6% by weight was “AZ-2”, the 1.0% by weight of “AZ-3” and the 2.2% by weight of “AZ-4”.
In addition, as a proportion, 0% by weight of silver was "AZ-1".

上記各触媒の銀イオンの放出量は、表3のとおりである。
The amount of silver ions released from each catalyst is shown in Table 3.

(燃料油の処方)
下記表4に示すように上記表3中の各銀イオン含有量の異なる銀置換ゼオライト辱場(「試料AZ-1」〜「試料AZ-4」)及びK-40触媒(「試料K」)を混合して改質用触媒として使用した。
(Fuel oil formulation)
As shown in Table 4 below, the silver-substituted zeolite humiliation fields ("Sample AZ-1" to "Sample AZ-4") and K-40 catalysts ("Sample K") having different silver ion contents in Table 3 above. Were used as a reforming catalyst.

(添加効果試験)
改質用触媒を経由に対して2重量%を、2時間添加して軽油を改質した。
改質した経由をディーゼルエンジンから排出される窒素酸化物及び粒子状物質を総理府令第53号による自動車から排出される窒素酸化物及び粒子状物質の特別措置法施行規則に基づき測定した。実施例1〜9において規制をクリアする効果が得られた。
分析結果を表6に示した。
(Additive effect test)
Light oil was reformed by adding 2% by weight based on the reforming catalyst for 2 hours.
Nitrogen oxides and particulate matter discharged from diesel engines via the modified route were measured based on the enforcement regulations of the Special Measures Law for nitrogen oxides and particulate matter emitted from automobiles by Prime Minister's Ordinance No. 53. In Examples 1-9, the effect which cleared a regulation was acquired.
The analysis results are shown in Table 6.

なお、排気ガス中のNOx及び炭素微粒子の測定法は、総理府令第53号に基づき、軽油を燃料としてディーゼル自動車用シックス・モードによる自動車排出窒素酸化物を測定する。
なお、自動車排出炭素微粒子状物質は10・15モードによる測定を示す。
In addition, the measuring method of NOx and carbon particulates in exhaust gas is based on Prime Minister's Ordinance No. 53, and measures automobile exhaust nitrogen oxide by diesel mode using diesel oil as fuel.
In addition, the car exhaust carbon particulate matter shows the measurement by 10.15 mode.

<評価結果>
実施例1〜9が他の条件に比較して、自動車から排出される窒素酸化物がシックス・モードで0.34g/L以下であり、粒子状物質が10−15モードで、0.55g以下の排出基準に適合しており、浄化効果に優れていることが確認できた。
<Evaluation results>
Compared with other conditions in Examples 1 to 9, nitrogen oxides emitted from automobiles are 0.34 g / L or less in the six mode, and particulate matter is emitted in the 10-15 mode and 0.55 g or less. It was confirmed that it conforms to the standard and has an excellent purification effect.

Claims (4)

銀イオンを放出する銀置換ゼオライトと、β線を放出するK-40を含有する石英斑岩粉末とから形成された焼成成形体であることを特徴とする燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒。 Nitrogen oxide and particulate matter of fuel oil, characterized in that it is a calcined molded body formed from a silver-substituted zeolite that releases silver ions and quartz porphyry powder containing K-40 that emits β rays Reforming catalyst to reduce 上記銀置換ゼオライトの銀イオンの放出濃度が10〜100ppbであり、且つ、K-40を含有する石英斑岩粉末のβ線の放射濃度が1〜5Bq/gであることを特徴とする請求項1に記載の燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒。 The silver-substituted zeolite has a silver ion release concentration of 10 to 100 ppb, and a quartz porphyry powder containing K-40 has a β-ray radiation concentration of 1 to 5 Bq / g. 2. A reforming catalyst that reduces nitrogen oxides and particulate matter in the fuel oil according to 1. 上記銀置換ゼオライト及び石英斑岩粉末が個々の焼成成形体又は上記2成分を配合した焼成成形体であって、且つ、上記焼成成形体が、球状、板状、筒状、ハニカム状又は発泡体より選ばれた形状であることを特徴とする請求項1又は2に記載の燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒。 The silver-substituted zeolite and the quartz porphyry powder are individual fired compacts or fired compacts containing the two components, and the fired compact is spherical, plate-shaped, cylindrical, honeycomb-shaped or foam-shaped. The reforming catalyst for reducing nitrogen oxides and particulate matter in a fuel oil according to claim 1 or 2, wherein the reforming catalyst has a more selected shape. 上記燃料油が、軽油であることを特徴とする請求項1〜3のいずれかに記載の燃料油の窒素酸化物及び粒子状物質を低減する改質用触媒。 The said fuel oil is light oil, The reforming catalyst which reduces the nitrogen oxide and particulate matter of fuel oil in any one of Claims 1-3 characterized by the above-mentioned.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008214540A (en) * 2007-03-06 2008-09-18 Yoshio Ichikawa Composition for modifying engine oil, oil tank for purifying engine exhaust gas and purifying method of engine exhaust gas
KR20210138821A (en) * 2020-05-11 2021-11-22 비엔지코리아(주) Manufacturing method of water gas for fuel by low temperature pyrolysis of biomass
JP2022029382A (en) * 2020-08-04 2022-02-17 株式会社環健スーパーテクノ Modification catalyst, production method for the same and modification device and exhaust emission control device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008214540A (en) * 2007-03-06 2008-09-18 Yoshio Ichikawa Composition for modifying engine oil, oil tank for purifying engine exhaust gas and purifying method of engine exhaust gas
KR20210138821A (en) * 2020-05-11 2021-11-22 비엔지코리아(주) Manufacturing method of water gas for fuel by low temperature pyrolysis of biomass
KR102451467B1 (en) * 2020-05-11 2022-10-12 비엔지코리아(주) Manufacturing method of water gas for fuel by low temperature pyrolysis of biomass
JP2022029382A (en) * 2020-08-04 2022-02-17 株式会社環健スーパーテクノ Modification catalyst, production method for the same and modification device and exhaust emission control device
JP7466190B2 (en) 2020-08-04 2024-04-12 株式会社環健スーパーテクノ Reforming catalyst, its manufacturing method, reforming device, and exhaust gas purification device

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