200825271 九、發明說明： 【發明所屬之技術領域】 其能夠有本用之廢氣淨化裳置， (N〇x)與顆粒物質(PM)。 、^乱令所合有的氮氧化物 【先前技術】 對柴油機的需求已經持續 _ 以被f泛地運用於整個工業界，^二=因ί柴油機可 且’能夠根據高燃料效率與;可靠二:般 篁與面負载進行操作。此外，對於 J祕而从兩能 提出之3L汽車計晝或超級汽車計效率所 很明顯的’所以，可以預期得出對汽車择加 木法機是 15 柴油汽車應該要對百分之四十的空氣^染負t機田然而’ 已發展的國家中，被認為是空氣汗染的主要二兒：此’在 ，之規η於心車======廢 氧化物(ΝΟχ)與顆粒物質(ρΜ)所產生的。因此，此^氮 :廢氣之規定中的主要目標材質就是氮氧化物：顆：： ^。用於處理上述物質的技術均集中於藉由延遲燃料生 時機與廢氣再循環(EGR)而減少氮氧化物的濃度 L射 增進並改革引擎的燃燒效能而減少顆粒物質。 猎由 作為-種減少氮氧化物的方法，係使用選擇 原器(SCR)，其在觸媒上使用一還原劑而將氮氧化物$ 5 20 200825271 成氮與氧。 〆氨、尿素與碳氫化合物可以被用作㈣制，但是由 於氨與=具有_外供應的缺點，所闕是碳氫化合物 較佳。礙氫化合物的種類有柴油、煤油、丙烯、丙烧、乙 烯、丁烯、甲烷等。 同時，柴油顆粒過濾器被廣泛地用來移除ρΜ，且再 生法可^齡類成被動再生型與线再生型。在被動再生 型中，藉由^ DPF上的氧化觸媒將NQ轉變成ν〇2,且將 產生的Ν〇2氧化成ΡΜ，而再生此柴油顆粒過濾器。而且， 在主動再生型中，使用一辅助裝置而強力地增加過濾器的 /m度，以達到更多的主動再生。在主動再生型中，藉由使 用電子加熱器而增加燃料的溫度，使用設置於DpF前方的 電漿反應器，以及柴油燃料的注射與燃燒等。 作為供柴油機的習知廢氣淨化裝置，已知有一種廢氣 淨化裝置’其中，上面帶有氧化觸媒的DPF係被設置於一 排氣通道的上游，碳氫化合物選擇性觸媒還原型氮氧化物 還原觸媒(DeNOx觸媒)係被設置於此廢氣通道的下游，且 —燃料注射器係安裝於DPF與DeNOx觸媒之間。 然而’此習知的廢氣淨化裝置很難成功地有效移除氮 氧化物、CO與包含中間溫度範圍内的顆粒物質之總碳氫 化合物(THC)。 二 【發明内容】 因此，本發明之一目的是要提供一種供柴油機用之廢 6 200825271 氣淨化裝置，其中，&产 質的效率n、p ^原氮氧化物的性能以及去除顆粒物 更4 简真正溫度之250至 才了以去除CO、THC等。 廢氣淨化穿另:”是要提供-種供柴油機用之 器係串、拿π番/、 虱乳化物還原觸媒及柴油顆粒過濾 原觸媒‘方’ t柴油燃料注射器係安裝於氮氧化物還 的初=1可由柴油燃料注射器實施氮氧化物 ί，而同時再生柴油顆粒過遽器。 本發明係關於一種#傘、、田+ # 效地淨化_㈣w 廢氣淨化裝置，能有 物質ο>μ、 氧中所含有的氮氧化物帆)與顆粒 内的提出一種設置在柴油機廢氣通道 物還原鯧L 用於還原氮氧化物的-氮氧化 器，係及用於去除齡物質的―柴油顆粒過滤 15 20 枓场㈣絲於氮氧㈣觸㈣前方。 以下，將詳細說明本發明。 依據本發明供柴油機用之廢氣淨化裝置能夠藉由 注入 氮氧化物還原觸媒部(以下稱之為「DeN〇x 7¾、♦' 」）上還原N〇X ’且藉由柴油燃燒而去除在柴油顆粒 =慮益（以下稱之為「贈」）所累積的顆粒物質，同時還 去除CO與THC。 在本發明中’當藉由DPF觸媒額外地在25〇至35〇0(：： ^中，度範圍内以及藉由以吨觸媒而去除氣氧化物 t更月b夠有效地去除氮氧化物。在習知使用觸媒 7 200825271 的情形中’由於在250至350°C的中間溫度範圍内之轉變 速率很低，所以，無法達成想要的去除效率。 而且，在本發明中，在柴油燃料在DeN〇x觸媒的前方 注射時，由於大部分的顆粒物質均在DPF部内移除，所 以，柴油燃料會很均勻地散佈，而同時通過DeN〇X觸媒， 因此，可以輕易地達成DPF的再生。 此外，依據本發明的廢氣淨化裝置可以更加有效地去 除在習知廢氣淨化裝置内所去除的一氧化碳(c〇)與總石发 氳化合物(THC)。 一〜 由於無法在DeNOx觸媒内去除c〇，所以，在單獨設 置DeN〇x觸媒之情形下，c〇會更確切地增加。然而，由 於依據本發明中DPF觸媒的鉑族元素之緣故，使得在超過 20(^(3時更能有效地去除c〇。 在THC的情形中，它也無法在DeN〇x觸媒被去除。 特=地在/主射木油燃料作為去除氮氧化物的還原劑之情 形日寸，比起並未注射之情形，會有更多的碳氫化合物(hc) 包=在廢氣内。為了解決這樣的問題，通過DeN〇x觸媒而 同日掏加的未反應HC，則可以有效地在DpF觸媒中被去 除。 作為本發明的-貫施例，廢氣淨化裝置係顯示於圖i 根據圖1所tf ’ DeN〇x觸媒部丨係設置於廢氣流動的 ，DPF部2則設置成與其串連，而且，—柴油注射器 3係安裝於DeNOx觸媒部丨的前方。 作為本發明的另-實施例，廢氣淨化裝置係顯示於圖 8 200825271 2中。根據圖2所* ’多數DeN〇^媒部係相鄰且連續地 設置成多層。在相鄰設置DeNOχ觸媒部的情形中，有一項 ，點’就是會增加廢氣所通過的表面，藉此能夠增強Ν〇χ 還原效率’而且’在溫度範_吨還原效率會更 加優秀且，―的操作狀態會根據廢氣的溫度引 起肌喊性能上的差異，因為可以藉由在各層中使用不 同的觸媒或者改變觸媒含量而增加叫還原效率，所以， 不官引擎的操作狀態為何’ Ν〇χ還原性能也是很優秀。200825271 IX. Description of the invention: [Technical field to which the invention pertains] It is possible to have an exhaust gas purification device, (N〇x) and particulate matter (PM). Nitrogen oxides that have been combined with the prior art [Previous technology] The demand for diesel engines has been continually applied to the entire industry, and the diesel engine can be 'according to high fuel efficiency and reliable Two: the general operation and surface load operation. In addition, for the J secret, the efficiency of the 3L car or the super car from the two can be clearly seen. Therefore, it can be expected that the car will be 15% of the diesel engine. The air ^ dyed negative t machine field however 'in the developed country, is considered to be the main two children of air sweating: this 'in, the rule η in the heart car ====== waste oxide (ΝΟχ) and Produced by particulate matter (ρΜ). Therefore, the main target material in the regulation of the nitrogen: exhaust gas is nitrogen oxide: particles:: ^. Techniques for treating these materials have focused on reducing the concentration of nitrogen oxides by delaying fuel life and exhaust gas recirculation (EGR), and improving the combustion performance of the engine to reduce particulate matter. As a method of reducing nitrogen oxides, a selective magnetizer (SCR) is used which uses a reducing agent to form nitrogen oxides and nitrogen oxides on the catalyst. Ammonia, urea and hydrocarbons can be used as the (4) system, but since ammonia and = have the disadvantage of being supplied externally, it is preferred that hydrocarbons are preferred. The types of hydrogen hindering compounds are diesel, kerosene, propylene, propane, ethylene, butene, methane, and the like. At the same time, diesel particulate filters are widely used to remove ρΜ, and the regeneration method can be classified into a passive regeneration type and a line regeneration type. In the passive regeneration type, the NQ is converted to ν 〇 2 by an oxidation catalyst on the DPF, and the produced ruthenium 2 is oxidized to ruthenium to regenerate the diesel particulate filter. Moreover, in the active regeneration type, an auxiliary device is used to strongly increase the /m degree of the filter to achieve more active regeneration. In the active regeneration type, the temperature of the fuel is increased by using an electric heater, and a plasma reactor disposed in front of the DpF, injection and combustion of the diesel fuel, and the like are used. As a conventional exhaust gas purifying apparatus for a diesel engine, there is known an exhaust gas purifying apparatus in which a DPF having an oxidizing catalyst thereon is disposed upstream of an exhaust passage, and a hydrocarbon selective catalytic reduction type nitrogen oxidation A material reduction catalyst (DeNOx catalyst) is disposed downstream of the exhaust gas passage, and a fuel injector system is installed between the DPF and the DeNOx catalyst. However, the conventional exhaust gas purifying apparatus is difficult to effectively remove nitrogen oxides, CO and total hydrocarbons (THC) containing particulate matter in an intermediate temperature range. [Explanation] Therefore, an object of the present invention is to provide a waste gas for a diesel engine 6 200825271 gas purification device, wherein & quality of production n, p ^ primary nitrogen oxide performance and removal of particulate matter 4 The real temperature is only 250 to remove CO, THC, etc. Exhaust gas purification and wearing: "It is necessary to provide - a series of engines for diesel engines, take π / / 虱 emulsion reduction catalyst and diesel particulate filter original catalyst 'square' diesel fuel injector installed in nitrogen oxides The initial =1 can be implemented by a diesel fuel injector, and at the same time regenerate the diesel granule filter. The present invention relates to an umbrella, a field + an effective purification _ (four) w exhaust gas purification device, can have substances ο > μ, the nitrogen oxides contained in the oxygen) and the particles proposed in the diesel exhaust channel reduction 鲳L for the reduction of nitrogen oxides - nitrogen oxidizers, and diesel fuel particles for the removal of ageing substances Filtration 15 20 枓 field (4) filament in front of nitrogen (4) contact (four). Hereinafter, the present invention will be described in detail. According to the present invention, an exhaust gas purifying apparatus for a diesel engine can reduce a catalyst portion by injecting nitrogen oxides (hereinafter referred to as " DeN〇x 73⁄4, ♦' ”) reduces N〇X ' and removes particulate matter accumulated in diesel particulates = benefit (hereinafter referred to as "gift") by diesel combustion, while also removing CO and THC. In the present invention, it is effective to remove nitrogen by the DPF catalyst additionally in the range of 25 〇 to 35 〇 0 (:: ^, and by removing the gas oxide t by the ton of catalyst. Oxide. In the case of the conventional use of the catalyst 7 200825271 'the conversion rate is low due to the intermediate temperature range of 250 to 350 ° C, the desired removal efficiency cannot be achieved. Moreover, in the present invention, When diesel fuel is injected in front of the DeN〇x catalyst, since most of the particulate matter is removed in the DPF, the diesel fuel is spread evenly and at the same time through the DeN〇X catalyst, so it can be easily In addition, the exhaust gas purifying apparatus according to the present invention can more effectively remove carbon monoxide (c〇) and total stone hairpin compound (THC) removed in the conventional exhaust gas purifying apparatus. The deNOx catalyst removes c〇, so in the case where the DeN〇x catalyst is separately provided, c〇 is more definitely increased. However, due to the platinum group element of the DPF catalyst according to the present invention, 20 (^ (more than 3 o'clock) Effectively remove c〇. In the case of THC, it can not be removed in the DeN〇x catalyst. Special = in the / main shot wood fuel as a reducing agent for the removal of nitrogen oxides, compared to In the case of no injection, there will be more hydrocarbon (hc) package = in the exhaust gas. In order to solve such a problem, the unreacted HC added by the DeN〇x catalyst in the same day can effectively touch the DpF. The medium is removed. As an embodiment of the present invention, the exhaust gas purifying device is shown in Fig. 1 according to Fig. 1 in which the tf ' DeN〇x catalyst portion is disposed in the exhaust gas flow, and the DPF portion 2 is arranged in the same manner. Further, the diesel injector 3 is attached to the front side of the DeNOx catalyst unit. As another embodiment of the present invention, the exhaust gas purifying apparatus is shown in Fig. 8 200825271 2. According to Fig. 2 * 'Down majority| The media is adjacent to each other and continuously arranged in multiple layers. In the case where the DeNO catalyst is disposed adjacently, there is a point that 'is to increase the surface through which the exhaust gas passes, thereby enhancing the reduction efficiency of the crucible. In the temperature range _ ton reduction efficiency will be more excellent, and The state will cause a difference in muscle performance depending on the temperature of the exhaust gas, because the reduction efficiency can be increased by using different catalysts in each layer or changing the catalyst content, so why is the operating state of the engine? The restore performance is also excellent.
DeN〇x觸媒部使用含有銀_成分、銅(Cu)成分或旬昆合 10 15 物的觸媒。㈣帶祕(Ag)成分料崎⑽響錄金 屬（Ag)、氧化銀(Ag2〇)、氯化銀(AgC1)、氮化銀(AgN〇3)、 硫化銀(Ag2S〇4)或其混合物所構成的群址。用於帶有銅_ 成分的可能材質係選擇由銅金屬㈣、氧化銅、醋酸銅、 麟酸銅、硫酸銅或其混合物所構成的群組。 的載體·，可以使用氧蝴雖）、二氧切 化鈦(妳）、氧化鈽(Ce〇2)、氧化鍅(叫）、麵石The DeN〇x catalyst unit uses a catalyst containing a silver-based component, a copper (Cu) component, or a tenant. (4) With the secret component (Ag), the material (Ag), silver oxide (Ag2〇), silver chloride (AgC1), silver nitride (AgN〇3), silver sulfide (Ag2S〇4) or a mixture thereof The group address formed. A possible material for the composition with copper _ is selected from the group consisting of copper metal (tetra), copper oxide, copper acetate, copper citrate, copper sulphate or a mixture thereof. Carrier, you can use oxygen butterfly, titanium dioxide (妳), cerium oxide (Ce〇2), cerium oxide (called), face stone
以過二種以上的混合物。尤其，在使用氧她做為载體之 情形中，ΝΟχ還原性能更加優秀。 勺取餸I 載體係藉由在-支撐本體上塗佈而使用，根據 總量塗佈量最好是0.5到4g/in3。在塗佈量小於 ?More than two kinds of mixtures have been used. In particular, in the case where oxygen is used as a carrier, the reduction performance of hydrazine is more excellent. The scoop 餸I carrier is used by coating on a support body, and the coating amount is preferably 0.5 to 4 g/in3 depending on the total amount. In the amount of coating is less than ?
Si地Ϊί中:=觸媒量絕對不足時’觸媒的性能就 菅頌者地下降。相反地，在塗佈量超過4g/in3之产 觸媒的性能不會再增加，也不會有助於製造。月/ ，Si cell Ϊ :: = When the amount of catalyst is absolutely insufficient, the performance of the catalyst drops. Conversely, the performance of the catalyst at a coating amount exceeding 4 g/in3 does not increase any more and does not contribute to the production. Month / ,
DeNOx觸媒部的支撐本體是—種由耐熱喊或金屬製 9 20 200825271 成的流通式支撐本體，且其一特別例子可以是堇青石蜂窩 結構本體。 車父佳地，根據載體的重量，而使用0·1至10重量百分 比的銀成分、銅成分或其混合物。在作為觸媒的成分之含 里小於0.1重量百分比的情形下，當其含量絕對不足時， 觸媒的性能就會顯著地下降。相反地，在含量超過1〇重 量百分比之情形下，當成份以金屬狀態存在而不利於還原 時，觸媒的性能也會顯著地下降。 而且，依據本發明的DeNOx_媒另外攜帶有鉑族成 分，致使在廢氣的真正溫度之2:50至6〇〇°C的溫度範圍 内，氮氧化物還原性能會更加優秀。依據本發明的氮氧化 物還原觸媒具有一種特性，就是在廢氣的真正溫度之25〇 至600〇C的溫度範圍内，氮氧化物還原性能很優秀，而在 其中另外帶有鉑族成分的情形下，在350至450〇C的範圍 内，此性能會更加優秀。 可用作為DeNOx觸媒部中所攜帶的銘族貴重金屬之 金屬，可以是？卜？(1、如、11：與1〇1其中之一，或者至少 二種的混合物。作為鈀(Pd)的開始材質可以使用硝酸鈀、 氯化把、二氯四胺鈀等。而且，作為鉑（Pt)的開始材質， 可以使用氯鉑酸、二胺亞硝酸鉑、二胺氯酸鉑等。而且， 作為铑(Rh)的開始材質，可以使用氯化铑、硝酸铑、六氯 三胺铑等。此外，鉑族金屬是介於〇·〇〇〇1到〇·5重量百分 比，較佳地是0.0005至0.2重量百分比，更佳地是〇 〇〇1 到〇·1重量百分比。因為假如含量小於〇·〇〇〇1重量百分比 200825271 ::二並未有助於增進性能’而且，假如含量超過〇5 重里百匀比的話，則性能會急速下降。 =據本發明的贈是-帶有_觸媒的過濾器，翻族 =:所帶有的元素是選自Pt、Pd、Ir或Rh所構成的群 好是m對於載體所塗佈的支撐 來說，DPF中所帶攜帶的麵族觸媒之含量是_到5 =百分比。去除顆粒物f的效果是不會出現在小於_ 10 15 點里形中’而且’可能會產生—項經濟上的缺 ..、，占就疋在超過5重量百分比的情形中’性能無法再提升。 分族觸媒之外’ _可以攜帶氧化觸媒成 刀=觸媒成分可以產生作以禁止亞硫酸氣體的氧 ’或者可以增純__表面活性…般來說 ^對於^性有機部分(S_氧化反應展現纽的 致一項缺點’就是當柴油燃料中所含的： ::的亞硫酸氣體(S02)被氧化成硫酸鹽時，顆粒物 貝运不利地增加。為了解決這樣的問題，除了 二，扇至少-種選自V、W或M。的觸媒 較佳地’對於載體所塗佈的支撐本體來說，此至少 自V、w或Mo的觸媒成分之含量為〇 〇1到2重量百分比= 在含量小於G.G1重量百分比的情形中，並不會 硫酸氣體的氧化之效果，而且，在含量超過2重量百分= 的情形中，效果也列顯，因而不符合經濟效益。而且， 例如K與Mg等驗金屬成分具有很低的溫度遷移率，且 此會產生作用而增加銘族觸媒的表面活性，藉此，可促進 20 200825271 觸媒與顆粒物質之間的接觸，且因此增強觸媒活性。較佳 地對於載體所塗佈的支撐本體來說，驗金屬所使用的含 量為0.01到1重量百分比。在含量小於〇 〇1重量百分比 的情形中，並不會出現增加鉑族觸媒的反應活性之效果， 而且’在含里超過1重量百分比的情形中，效果也不明顯， 因而不符合經濟效益。 10 15 而且，作為攜帶觸媒用的載體，可以使用氧化鋁 (=12〇3)、二氧化矽（Si〇2)、二氧化鈦(Ti〇2)、氧化鈽(Ce〇2)、 氧化，(Zr02)、或沸石，也可以使用二種以上的混合物。 藉由使用廢氣的溫度增加且同時使用來自氮氧化物還 原觸媒前方所注射的柴油燃料之氧化，依據本發明的DpF 能去除累積的顆粒物質。較佳地，可使用包括蓳青石、具 有陶瓷、Ni合金或FeCr$金等合金材質，因為這些 材貝具有如支撐本體一樣較高的耐熱性，因此，甚至在溫 度過度增加的情形下，也可以安全使用。在使用高耐熱性 二撐本體之情形中’具有一項優點’就是能夠在 再生日讀產生的高熱下安全地操作，且藉由使用過多 ，粒物質氧化時所產生的熱能而節省欲注射的柴油燃料 置〇 20 【實施方式】 姑了 ==隨關所作之較佳實施例詳細朗，可以清 疋、X的上述及其他目的、特色與優點。 以下，將參考附圖詳細說明本發明的實施例。然而， 12 .200825271 要知道的是本發明並未侷限於這些實施例而已。相反地， 本發明包括位於申请專利範圍的精神與範圍内之所有變 化、修改與等效置換。 5 [製造範例一] 氣乳化物运原觸媒的製造過程钦述如下：丫_氧化銘粉 末[表面積·· 21〇m2/gr，孔體積：〇.5cc/gr，比重：〇 8g/cc] 與醋酸及瘵顧水一起混合，然後，使用濕球磨機研磨此混 合物達二十四小時，因而可製造出均勻的氧化鋁泥漿。藉 10 由濕球磨機所研磨出來具有中間顆粒尺寸的氧化鋁為2至 8毫米。上述所製成的氧化鋁泥漿藉由蓳青石蜂窩而加以 粗略塗佈(washcoat)，此蓳青石直徑為ιι·25英对，長度為 3英对，且細胞密度為400cpsi，致使氧化紹的攜帶量變成 3g/in3,接著，從正常溫度開始以每分鐘3QC的速率增加直 15 到爐子内達C，接著在i2〇QC烘乾達三小時，接著從 120°C開始以每分鐘3°C的速度增加至550。〇接著是鍛燒 三小時。 然後，將帶有堇青石的鍛燒氧化鋁之乾燥本體摻入溶 解有氣始酸所製成的溶劑内而成為銘先驅物與石肖酸銀，致 20 使，對於氧化鋁的重量來說，銀的含量為2·0重量百分比， 且銘觸媒成分的含量為〇·001重量百分比，之後，在氧化 鋁塗佈層的同樣條件下，烘乾過的本體在12〇〇C鍛燒三小 時，且然後在550°C鍛燒三小時。 13 200825271 [製造範例二] 柴油顆粒過滤器的製造過程敛述如下：252公克的聚 乙烯°比咯烷酮(poly vinyl pyrr〇lid〇ne)(Aldrich化學股份有 限公司製造，平均分子重量為10000)在二公升的燒溶 解於蒸餾水中’以產生出均勻的溶液。3〇4公克的氯麵酸 以。及一公升的甲醇放入其中，然後進行攪拌。此溶液在 8〇°C逆流六小時，因而獲得了 一個暗棕色鉑膠狀溶液且鉑 的重量百分比為0.62。15.4公克的鉬酸銨與1〇公克的氫 氧化鉀被分別放入250mL的蒸德水中然後攪拌，藉此製造 出鉬的水溶液與鉀的水溶液。 製好的鉑膠狀溶液、鉬的水溶液與鉀的水溶液以相同 重量比例混合，因此，可獲得用於一催化過濾器的金屬鹽 膠狀溶液。作為催化過遽器的支撐本體，可以使用C〇ning 公司製造的一個壁流(wallfl〇w)狀陶瓷過濾器，其直徑為 11·25英吋，長度為14英吋，且細胞密度為2〇〇cpsi。 在沉澱有7重量百分比的二氧化鈦與二氧化矽混合塗 佈溶液之後，烘乾並鍛燒蜂窩單體。此用於催化過濾器的 膠狀混合物被帶入此塗佈支撐本體内，且根據載體所塗佈 的支撐本體’其含量分別為鉑〇·27重量百分比，鉬0.16 重量百分比，鉀0.077重量百分比。然後，在12〇cc烘乾 二小時之後’藉由在550〇c鍛燒四到六小時，可以製造出 柴油顆粒過滤器。 [實施例一]廢氣淨化裝置之性能評估一 200825271 制造例J"、中所製造的氮氧化物還原觸媒以及在 Ϊ，：：：、念：衣造的柴油顆粒過濾器，係連續地連接起 t 個不鏽鋼所製成的Μ金屬容器内。 位移:!，灯°平估〆則試’所以使用一個Daew00引擎，其The supporting body of the DeNOx catalyst portion is a flow-through supporting body made of heat-resistant shouting or metal 9 20 200825271, and a special example thereof may be a cordierite honeycomb structure body. The car owner preferably uses from 0.1 to 10% by weight of the silver component, the copper component or a mixture thereof depending on the weight of the carrier. In the case where the content of the component as a catalyst is less than 0.1% by weight, when the content is absolutely insufficient, the performance of the catalyst is remarkably lowered. Conversely, in the case where the content exceeds 1 liter by weight, the performance of the catalyst is remarkably lowered when the component exists in a metallic state and is not favorable for reduction. Moreover, the DeNOx-based medium according to the present invention additionally carries a platinum group component, so that the nitrogen oxide reduction performance is more excellent in a temperature range of 2:50 to 6 °C of the true temperature of the exhaust gas. The nitrogen oxide reduction catalyst according to the present invention has a characteristic that the nitrogen oxide reduction performance is excellent in the temperature range of 25 〇 to 600 〇C of the true temperature of the exhaust gas, and the platinum group component is additionally contained therein. In the case of 350 to 450 〇C, this performance will be even better. Can be used as the metal of the precious metals of the Ming family carried in the DeNOx catalyst unit, can it be? Bu? (1, for example, 11: one of 1 and 1 or a mixture of at least two. As the starting material of palladium (Pd), palladium nitrate, chlorinated palladium, dichlorotetramine palladium, etc. may be used. (Pt) can be made of chloroplatinic acid, platinum diamine nitrite, platinum diamine chlorate, etc. Further, as a starting material of rhodium (Rh), cerium chloride, cerium nitrate, and hexachlorotriamine can be used. Further, the platinum group metal is from 〇·〇〇〇1 to 〇·5 by weight, preferably from 0.0005 to 0.2% by weight, more preferably from 〇〇〇1 to 〇·1 by weight. If the content is less than 〇·〇〇〇1 by weight, 200825271:2 does not contribute to the improvement of performance'. Moreover, if the content exceeds 〇5, the performance will drop rapidly. = According to the present invention, the gift is - Filter with _catalyst, family =: The element is selected from the group consisting of Pt, Pd, Ir or Rh. The m is carried in the DPF for the support coated by the carrier. The content of the in-plane catalyst is _ to 5 = percentage. The effect of removing particulate matter f does not appear to be less than _ 1 0 15 points in the shape of 'and 'may be produced - the economic deficiency.., in the case of more than 5 weight percent of the situation 'performance can not be improved. Outside the family of catalysts _ can carry oxygen The catalyst is formed into a knife = the catalyst component can be produced to inhibit the oxygen of the sulfurous acid gas or can be purified __surface activity... in general, for the organic part (S_oxidation reaction shows a disadvantage) That is, when the diesel fuel contains: :: sulfite gas (S02) is oxidized to sulfate, the particulate matter is disadvantageously increased. In order to solve such a problem, in addition to two, at least one kind of fan is selected from V, W. Or the catalyst of M. preferably 'for the support body coated by the carrier, the content of the catalyst component from at least V, w or Mo is 〇〇1 to 2% by weight = less than G.G1 In the case of a weight percentage, the effect of oxidation of sulfuric acid gas is not obtained, and in the case where the content exceeds 2% by weight =, the effect is also listed, and thus it is not economical. Moreover, for example, metal such as K and Mg The composition has a very low temperature mobility and this will It acts to increase the surface activity of the intaglio catalyst, thereby promoting the contact between the catalyst and the particulate matter in 200825271, and thus enhancing the catalytic activity. Preferably, for the support body coated by the carrier, The content of the metal used is 0.01 to 1% by weight. In the case where the content is less than 〇〇1 by weight, the effect of increasing the reactivity of the platinum group catalyst does not occur, and 'more than 1% by weight in the content of the metal In the case, the effect is not obvious, and thus it is not economical. 10 15 Moreover, as a carrier for carrying the catalyst, alumina (=12〇3), cerium oxide (Si〇2), titanium dioxide (Ti〇) can be used. 2), cerium oxide (Ce〇2), oxidation, (Zr02), or zeolite, or a mixture of two or more kinds may be used. The DpF according to the present invention can remove accumulated particulate matter by using an increase in the temperature of the exhaust gas and simultaneously using oxidation of the diesel fuel injected from the front of the nitrogen oxide reducing catalyst. Preferably, an alloy material including cordierite, ceramic, Ni alloy or FeCr$ gold may be used because these materials have high heat resistance as the support body, and therefore, even in the case of excessive temperature increase, Can be used safely. In the case of using a high heat-resistant two-support body, 'has an advantage' that it can be safely operated under the high heat generated by the regeneration day reading, and the use of excessive heat, the heat energy generated when the particulate matter is oxidized, saves the injection. Diesel Fuel Setting 20 [Embodiment] The preferred embodiment of the method is as follows. The above and other objects, features and advantages of the X and X can be cleared. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it is to be understood that the invention is not limited to the embodiments. On the contrary, the invention is intended to cover all modifications, modifications and 5 [Manufacturing Example 1] The manufacturing process of the gas emulsion carrier is described as follows: 丫_oxidized powder [surface area·· 21〇m2/gr, pore volume: 〇.5cc/gr, specific gravity: 〇8g/cc It is mixed with acetic acid and water, and then the mixture is ground using a wet ball mill for twenty-four hours, so that a uniform alumina slurry can be produced. The alumina having an intermediate particle size ground by a wet ball mill is 2 to 8 mm. The alumina slurry prepared above is roughly coated by a cordierite honeycomb having a diameter of 25 inches, a length of 3 inches, and a cell density of 400 cpsi, resulting in carrying of the oxide. The amount becomes 3g/in3, and then, from the normal temperature, the temperature is increased by 3 at a rate of 3QC per minute to reach C in the furnace, followed by drying at i2〇QC for three hours, then starting at 120 °C at 3 °C per minute. The speed increased to 550. The cockroach is followed by calcination for three hours. Then, the dry body of the calcined alumina with cordierite is incorporated into a solvent prepared by dissolving the gas-producing acid to become the precursor of the precursor and the silver tartaric acid, so that for the weight of the alumina The content of silver is 2.0% by weight, and the content of the catalyst component is 〇·001% by weight. Thereafter, under the same conditions of the alumina coating layer, the dried body is calcined at 12〇〇C. Three hours, and then calcined at 550 ° C for three hours. 13 200825271 [Manufacturing Example 2] The manufacturing process of the diesel particulate filter is as follows: 252 g of polyvinyl pyrr〇lid〇ne (made by Aldrich Chemical Co., Ltd., with an average molecular weight of 10,000) ) Dissolve in two liters of boiling water in distilled water to produce a homogeneous solution. 3 〇 4 grams of chloroauric acid. One liter of methanol was placed therein and then stirred. The solution was refluxed at 8 ° C for six hours, thus obtaining a dark brown platinum colloidal solution and the weight percentage of platinum was 0.62. 15.4 g of ammonium molybdate and 1 g of potassium hydroxide were separately placed in a steam of 250 mL. The water is then stirred, thereby producing an aqueous solution of molybdenum and potassium. The prepared platinum colloidal solution, the aqueous solution of molybdenum and the aqueous solution of potassium are mixed in the same weight ratio, and therefore, a metal salt colloidal solution for a catalytic filter can be obtained. As a support body for the catalytic converter, a wall-wound ceramic filter manufactured by C〇ning Co., Ltd. can be used, which has a diameter of 11·25 inches, a length of 14 inches, and a cell density of 2 〇〇cpsi. After precipitating 7 wt% of titanium dioxide mixed with a coating solution of cerium oxide, the honeycomb monomer was dried and calcined. The gelled mixture for the catalytic filter is carried into the coated support body, and the content of the support body coated according to the carrier is respectively, the content of platinum 〇27 wt%, molybdenum 0.16 wt%, and potassium 0.077 wt%. . Then, after drying at 12 cc for two hours, a diesel particulate filter can be produced by calcining at 550 〇c for four to six hours. [Embodiment 1] Performance Evaluation of Exhaust Gas Purification Device A 200825271 Nitrogen oxide reduction catalyst manufactured in Production Example J", and a diesel particulate filter manufactured in Ϊ, :::, 衣: continuous connection It is made of a stainless steel container made of stainless steel. Displacement: !, the light is flat and the test is ‘, so use a Daew00 engine, its
I化二i 1L，且應用渦輪增壓11及中冷11。用於評估氮 乳化物與顆粒物質去除钕罢 少 L 重型柴油_日本係依據被設計成用於 10 引擎摔作+杈式而貝轭。在選定的穩定狀態 作仏件下只知此測試，這些條件係藉由固定引擎 :以及引擎電動機的負载(扭矩）。此 : :燃料為超低硫柴油，其中硫的含量為5〇PPm。 92% ? 34； , r 化物為38%，而顆粒物質為93%。 火虱 [表一 ]Daewoo引擎的氮氧化物還 結果 原與顆粒物質 去除之測試I Ii II 1L, and apply turbocharger 11 and intercooler 11. Used to evaluate nitrogen emulsifiers and particulate matter removal 钕 L L Heavy Duty Diesel _ Japan is designed to be used for 10 engine throws + 而 而 and yoke. This test is only known under the selected steady state conditions, which are fixed engine: and the load (torque) of the engine motor. This : : The fuel is ultra low sulfur diesel with a sulfur content of 5 〇 PPm. 92% ? 34; , r compound is 38%, and particulate matter is 93%. Fire 虱 [Table 1] Daewoo engine NOx also results Original and particulate matter removal test
[貫施例二]廢氣淨化裝置之性能評估二 在此，使用與實施例一相同的廢氣淨化裝置。 15 用於測試評估的汽車為日本HINO公司所出產★ 車，其位移量為12.9L，且具有渦輪增壓器與中冷器，' = TO 任 200825271 底盤DYNAMO實施此測試。 用於評估氮氧化物與顆粒物質去除效果的測 據被設計成用於重型柴油機的日本D-13模式而;Y係依 此測試中所使用的柴油燃料為超低硫柴油，其中^知。在 為lOppm。結果顯示對一氧化碳的還原比率為处^的含量 化合物為36%，氮氧化物為39%，而顆粒物質為嗲氫 [表二] 曰本HINO公司的汽車之氮氧化物 去除之測試結果 10 還原與顇粒物質 --~~--- 基礎 g/KWjj__ 在裝置安裝之後g/KWh _CO 」·338 0.045 ------ HC 上502 0^10 _^Όχ_ 5.426 --—-^ 逛原比率 ----~~--- -----—--— _98.1% ^3^5% 5.Ill 39.6%^ -^016^ [產業應用性] 15 ㈣线淨化裝置是_種廢氣淨 :物= 的250到_°c之溫度範圍中，氣氧 =:還原，一:=::=物 C〇 操作㈣為何’ Ν〇χ還原性能也很優秀，且 c Η ΡΜ的去除效率也很優秀。 20 200825271 【圖式簡單說明】 圖1是顯示在DeNOx觸媒層為一層的情形中之本發明 的廢氣淨化裝置。 圖2是顯示在DeNOx觸媒層為多層的情形中之本發明 5 的廢氣淨化裝置。 【主要元件符號說明】 1 氮氧化物還原(DeNOx)觸媒部 2 柴油顆粒過濾器（DPF)部 1〇 3 柴油燃料注射器 17[Scheme 2] Performance Evaluation of Exhaust Gas Purifying Apparatus 2 Here, the same exhaust gas purifying apparatus as in the first embodiment is used. 15 The car used for the test evaluation was produced by Japan HINO Co., Ltd., with a displacement of 12.9L and a turbocharger and intercooler, '= TO Ren 200825271 Chassis DYNAMO to carry out this test. The data used to evaluate the removal of nitrogen oxides and particulate matter was designed to be used in the Japanese D-13 mode for heavy-duty diesel engines; the Y-based diesel fuel used in this test was ultra-low sulfur diesel, of which. At lOppm. The results show that the reduction ratio of carbon monoxide is 36% of the content of the compound, 39% of the nitrogen oxides, and the particulate matter is hydrogen. [Table 2] Test results of nitrogen oxides removal by the HINO company. With 顇 物质 - ---~~--- Foundation g/KWjj__ after installation of the device g / KWh _CO ” 338 0.045 ------ HC on 502 0^10 _^Όχ_ 5.426 ---- Ratio----~~--- --------- _98.1% ^3^5% 5.Ill 39.6%^ -^016^ [Industrial Applicability] 15 (four) line purification device is _ Exhaust gas net: material = 250 to _ °c temperature range, gas oxygen =: reduction, one: =:: = object C 〇 operation (four) why ' Ν〇χ reduction performance is also excellent, and c Η ΡΜ The removal efficiency is also excellent. 20 200825271 [Simplified description of the drawings] Fig. 1 is a view showing an exhaust gas purifying apparatus of the present invention in the case where the DeNOx catalyst layer is one layer. Fig. 2 is a view showing an exhaust gas purifying apparatus of the present invention 5 in the case where the DeNOx catalyst layer is a plurality of layers. [Main component symbol description] 1 Nitrogen oxide reduction (DeNOx) catalyst unit 2 Diesel particulate filter (DPF) unit 1〇 3 Diesel fuel injector 17