201038885 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種焚化爐尾氣觸媒淨化裝置，尤指一 種將焚化爐焚化後之低濃度揮發性有機物，利用低溫觸媒 氧化單元予以淨化處理之設計者。 【先前技術】 按，生活和生産中廣泛應用的有機溶劑，在室溫下易 揮發成氣體，故又名揮發性有機物（Volatile Organic O Compounds，VOCs)，而多數的VOCs對人體有一定毒性，必 須加以處理。然而，焚化法為VOCs廢氣處理方式之一種， 在適當條件下之VOCs去除率可達90〜99%，燃燒後之產物 通常為水、二氧化碳、氮氧化物、硫氧化物…等，故為一 種可有效處理廢氣中所含之VOCs及臭氣之方法；但僅藉由 焚化爐焚化VOCs廢氣，在處理高濃度（如1500PPMV以 上）VOCs廢氣時，其出口濃度可能仍高於數至數十PPMv， 故仍須將焚化爐尾氣進一步淨化後再排放；再者，若焚化 Q 爐為雙槽式蓄熱焚化爐，當其蓄熱槽預熱/蓄熱切換時，預熱 蓄熱槽中的欲處理氣體會因尚未焚化而被排放，故其出口濃 度於每次閥件切換時，會有週期性未處理氣體交替污染排放 及洩漏（尖峰處）的問題（請參閲第一圖）；亦即，雙槽式蓄熱 焚化爐尾氣，更加需要進一步淨化後再排放。 因此，可如第二圖所示，將一濃縮器（20)設置於一焚化 爐（10)之排放端，將焚化爐尾氣進一步吸附淨化後再排放， 而雖然濃縮器所能處理之廢氣濃度較不受限，不過所需之設 201038885 備成本則較高，乃影響使用者之接受程度。另者，對於VOCs i 具有脫除效率高、反應溫度低、能源消耗低及避免生成二 次污染物等優點之觸媒催化法，雖然是一種環境友好的催 化淨化技術；但因焚化爐尾氣之溫度屬於低溫層級（焚化爐 通常都有熱回收之機制），而習知之觸媒催化技術在低溫環 境之淨化效果並不佳，亦即若以習知之觸媒催化技術處理 焚化爐尾氣，其淨化效果會遠不如原先之預期效果。 【發明内容】 P 本發明之主要目的，係欲提供一種焚化爐尾氣觸媒淨 化裝置及方法，而具有確保最終所排放氣體濃度或/及臭味 桴合規定之功效。 本發明之另一目的，則具有將雙槽式焚化爐週期性排 放未處理氣體之問題予以解決之功效。 本發明之又一目的，乃具有設備成本低且節能之功效。 為達上述功效，本發明之結構特徵，係包括有： 一焚化爐，連接有引氣管與排氣管；以及 一低溫觸媒氧化單元，係以多孔性擔體承載金屬或金201038885 VI. Description of the Invention: [Technical Field] The present invention relates to an incinerator exhaust gas catalytic purification device, and more particularly to a low concentration volatile organic substance incinerated by an incinerator, which is purified by a low temperature catalyst oxidation unit. The designer. [Prior Art] According to the organic solvents widely used in life and production, they are easily volatilized into gases at room temperature, so they are also known as Volatile Organic O Compounds (VOCs), and most VOCs are toxic to humans. Must be dealt with. However, the incineration method is one of the treatment methods of VOCs, and the removal rate of VOCs under suitable conditions can reach 90 to 99%. The products after combustion are usually water, carbon dioxide, nitrogen oxides, sulfur oxides, etc., so it is a kind. The method of effectively treating VOCs and odor contained in exhaust gas; however, only by incinerating VOCs waste gas by incinerator, when processing high-concentration (such as above 1500PPMV) VOCs, the outlet concentration may still be higher than several to several tens of PPMv. Therefore, the incinerator tail gas must be further purified and then discharged; in addition, if the incineration Q furnace is a double-tank type thermal storage incinerator, when the heat storage tank is preheated/heat storage switched, the gas to be treated in the preheating heat storage tank will be Because it has not been incinerated, it is discharged. Therefore, when the valve concentration is switched, there will be problems of alternating untreated gas discharge and leakage (peak) (see the first figure); that is, double The tail gas of the trough type regenerative incinerator needs to be further purified before being discharged. Therefore, as shown in the second figure, a concentrator (20) can be disposed at the discharge end of an incinerator (10) to further adsorb and purify the incinerator tail gas, and then the exhaust gas concentration can be treated by the concentrator. It is less restrictive, but the required cost of 201038885 is higher, which affects the acceptance of users. In addition, for VOCs i, the catalyst catalytic method has the advantages of high removal efficiency, low reaction temperature, low energy consumption and avoidance of secondary pollutants. Although it is an environmentally friendly catalytic purification technology, it is due to incinerator exhaust gas. The temperature belongs to the low temperature level (incinerators usually have a mechanism of heat recovery), and the conventional catalyst catalytic technology does not have a good purification effect in a low temperature environment, that is, if the catalytic converter catalytic technology is used to treat the incinerator exhaust gas, the purification thereof The effect will be far less than expected. SUMMARY OF THE INVENTION P The main object of the present invention is to provide an incinerator tail gas catalyst purification apparatus and method, which has the effect of ensuring a final concentration of gas discharged and/or an odor mixture. Another object of the present invention is to solve the problem of periodically discharging an untreated gas in a two-tank incinerator. Another object of the present invention is to have the advantages of low equipment cost and energy saving. In order to achieve the above effects, the structural features of the present invention include: an incinerator connected to an air introducing pipe and an exhaust pipe; and a low temperature catalyst oxidation unit for carrying a metal or gold with a porous carrier
D 屬氧化物觸媒，而設置於該焚化爐之排氣管下游，且較佳 之操作溫度為7 5〜2 5 0 °C者。 此夕卜，該觸媒包括Mn、Fe、Co、Cu、Ce、Zn、Ag、 Pb、CuO-Mo03、Ag-Mn或其組合。該多孔性擔體為氧化鋁 或沸石，而包括r-Al203、ZSM-5或其組合。該觸媒與多孔 性擔體之組成包括 CuO-Mo03/r-Al203、Ag/ZSM-5、 Cu/ZSM-5、Cu-Ce/ZSM-5、Mn/ZSM-5、Ag-Mn/ZSM-5 或其 組合。該焚化爐與低溫觸媒氧化單元之間進一步設置一臭 201038885 氧供給單凡，提供臭氧給低溫觸媒氧化單元，可進一步增 媒氧化效能。進一步設置令該引氣管由該排氣管回收 。…'心之熱交換器’而將焚化爐之出口溫度控制在乃〜25〇 ^。進於該引氣管或該排氣管擇—設置避開該熱交換 ，旁通g。該低溫觸媒氧化單元更佳之操作溫度為100 〜15(rc ’且令該熱交換器將焚化爐之出口溫度控制在100 〜15〇〇c。 再者，該低溫觸媒氧化單元之多孔性擔體為顆粒狀、 蜂巢狀、圓柱狀、發泡狀、粉末狀或球狀。該焚化爐包括 雙槽式蓄熱焚化爐、多槽式蓄熱焚化爐、迴轉式蓄熱焚化爐 與直燃式焚化爐。該低溫觸媒氧化單元之型式包括轉輪 環式或固疋床式。豸轉輪式或轉環式低溫觸媒氧化 早7G區分有一吸附區與一脫附氧化區。該轉輪式或轉環式 2溫觸媒氧化單元進—步於該吸附區與脫附氧化區之間區 分有一冷卻區。該固定床式低溫觸媒氧化單元為單塔式、 雙塔式或多塔式。 本發明之方法特徵，係包括下列步驟： Ο a.利用焚化爐將揮發性有機物淨化處理； b.控制焚化爐出口溫度，而將經焚化爐淨化後之低濃 度揮發性有機物，利用低溫觸媒催化技術再度淨化並排放。 再者，步驟b可進一步提供臭氧，加強觸媒之吸脫附 淨化功能或低溫氧化還原或分解反應。 另者，步驟a可進一步利用熱交換器令焚化爐之引氣 管由排氣管回收熱能，而將焚化爐之出口溫度控制在乃〜 250°C，甚至是 1〇〇〜150°C。 201038885 【實施方式】 首先，請參閱第三圖所示，本發明之觸媒淨化裝置係 包括有： 一焚化爐（10)，連接有引氣管（11)與排氣管（12)，用 以將揮發性有機物引入並進行焚化處理；而該焚化爐（10) 包括雙槽式蓄熱焚化爐（圖示代表）、多槽式蓄熱焚化爐、迴 轉式蓄熱焚化爐與直燃式焚化爐。 一低溫觸媒氧化單元（30)，係以多孔性擔體承載金屬 或金屬氧化物觸媒，而設置於該焚化爐（10)之排氣管（12) v 下游，用以將經由該焚化爐（10)焚化燃燒後之低濃度揮發 性有機物進行再淨化處理，並由排放管（34)與煙111(35)把 淨化氣流排放至大氣；其中，該觸媒包括Mn、Fe、Co、Cu、 Ce、Zn、Ag、Pb、CuO-Mo03、Ag-Mn 或其組合；該多孔性 擔體為氧化鋁或沸石，而包括r-Al203、ZSM-5或其組合； 該觸媒與多孔性擔體之組成包括CuO-Mo03/r-Al203、 Ag/ZSM-5 、Cu/ZSM-5、Cu-Ce/ZSM-5 、Mn/ZSM-5 、 Ag-Mn/ZSM-5或其組合者。 〇 然而，該低溫觸媒氧化單元（30)較佳之操作溫度為75 〜250°C，更佳之操作溫度為100〜150°C ;又，該低溫觸媒 氧化單元（30)之型式包括固定床式（圖示代表）、轉環式或轉 輪式；其中，該固定床式低溫觸媒氧化單元為單塔式、雙 塔式或多塔式；該轉輪式或轉環式低溫觸媒氧化單元區分 有一吸附區與一脫附氧化區，另進一步於該吸附區與脫附 氧化區之間區分有一冷卻區。再者，該低溫觸媒氧化單元 (30)之多孔性擔體為顆粒狀、蜂巢狀、圓柱狀、發泡狀、 201038885 粉末狀或球狀。 此外，請再參閱第四圖所示，該焚化爐（1〇)與低溫觸 媒氧化單元（30)之間進一步設置一臭氧供給單元（4〇)，提 供臭氧給低溫觸媒氧化單元（30)，作為加強觸媒吸脫附淨 化功能或低溫氧化還原或分解反應之用。另者，請續參閱 第五圖所示，進一步設置一管殼式、板式或熱管式熱交換 器（50)，而令該引氣管（丨丨）由該排氣管（12)回收熱能，且 於該引氣管（11)或該排氣管（12)擇一設置避開該熱交換器 3 (50)之旁通管（ill或121)，而用以控制流經該旁通管（m I 或121)之氣流量，調節進入該熱交換器（5〇)進行熱回收之 氣流量，藉以調整引入該焚化爐（1〇)之廢氣氣流溫度，亦 即可進一步限制該焚化爐（1〇)之入口與出口溫度之高低 值，因此，係可設置第一溫度計（51)與第二溫度計（52)於 该焚化爐（10)之入口與出口，偵測該焚化爐〇〇)之入口與 出口溫度，並藉此溫度訊號經由一控制器（53)調整該旁通 管（111或121)之控制閥（112或122)之開度’調節進入該 熱交換器（50)進行熱回收之氣流量，進而將焚化爐（1〇)之 > 出口溫度控制在75〜25(TC，更佳之焚化爐出口溫度為1〇〇 〜150〇C。 基於如是之構成，本發明之觸媒淨化裝置係將含有揮 發性有機物之待淨化氣體，先藉該焚化爐（1〇)進行第一階 奴之淨化處理，再由該低溫觸媒氧化單元進行第二階 •k之低滾度揮發性有機物淨化處理；並進一步提供臭氧給 7低/皿觸媒氧化單元（3〇) ’用以加強觸媒之吸脫附淨化功 食b或低战氧化還原或分解反應；且根據該低溫觸媒氧化單 201038885 元（30)之操作溫度’利用該熱交換器（5〇)控制焚化爐（1〇) 之出口溫度’維持該低溫觸媒氧化單元之再淨化效 能，而回收之熱能又可將進入焚化爐（1〇)之待淨化氣體預 埶。 是以’本發明具有不必採用複雜之處理設備，即得以 確保最終所排放之氣體符合規定且節能之功效。另外，由 於雙槽式蓄熱焚化爐在蓄熱槽預熱/蓄熱切換時，會如第一 圖所示，預熱蓄熱槽中之欲處理氣體會因尚未焚化而被排 放，因而有未處理氣體週期性排放之問題，故再由該低溫 ^ 觸媒氧化單元（3〇)進行第二階段淨化處理之設計，遂可將 此一問題消弭於無形，乃具有將雙槽式焚化爐週期性排放 未處理氣體之問題予以解決之功效。 綜上所述，本發明所揭示之技術手段，確具「新穎性」、 進步性」及「可供產業利用」等發明專利要件，祈請鈞 局惠賜專利，以勵發明，無任德感。 惟，上述所揭露之圖式、說明，僅為本發明之較佳實 施例，大凡熟悉此項技藝人士，依本案精神範疇所作之修 〇 飾或等效變化’仍應包括本案申請專利範圍内。 201038885 【圖式簡單說明】 第一圖係雙槽式蓄熱焚化爐之尾氣濃度說明圖。 第二圖係利用濃縮器淨化焚化爐尾氣之結構說明圖。 第三圖係本發明之結構說明圖。 第四圖係本發明增設臭氧供給單元之結構說明圖。 第五圖係本發明再增設熱交換器之結構說明圖。 【主要元件符號說明】 (10) 焚化爐 (11) 引氣管 (12) 排氣管 (111、121)旁通管 (20)濃縮器 (30)低溫觸媒氧化單元 (34) 排放管 (35) 煙囪 (40)臭氧供給單元 (50) 熱交換器 (51) 第一溫度計 (5 2 )第二溫度計 (53)控制器D is an oxide catalyst and is disposed downstream of the exhaust pipe of the incinerator, and preferably has an operating temperature of 7 5 to 2 50 °C. Further, the catalyst includes Mn, Fe, Co, Cu, Ce, Zn, Ag, Pb, CuO-Mo03, Ag-Mn, or a combination thereof. The porous support is alumina or zeolite and includes r-Al203, ZSM-5 or a combination thereof. The composition of the catalyst and the porous support includes CuO-Mo03/r-Al203, Ag/ZSM-5, Cu/ZSM-5, Cu-Ce/ZSM-5, Mn/ZSM-5, Ag-Mn/ZSM -5 or a combination thereof. A further odor is provided between the incinerator and the low-temperature catalyst oxidation unit. 201038885 Oxygen supply is provided, and ozone is supplied to the low-temperature catalyst oxidation unit to further increase the oxidation efficiency. Further setting allows the air intake pipe to be recovered by the exhaust pipe. ...the 'heart heat exchanger' and the outlet temperature of the incinerator is controlled at ~25〇 ^. Into the air intake pipe or the exhaust pipe is selected to avoid the heat exchange, bypass g. The low temperature catalyst oxidation unit preferably has an operating temperature of 100 to 15 (rc ' and allows the heat exchanger to control the outlet temperature of the incinerator to 100 to 15 〇〇 c. Further, the porosity of the low temperature catalyst oxidation unit The carrier is in the form of granules, honeycombs, cylinders, foams, powders or spheres. The incinerator includes a double-tank thermal storage incinerator, a multi-tank thermal storage incinerator, a rotary thermal storage incinerator and direct combustion incineration. The type of the low-temperature catalyst oxidation unit includes a rotary ring type or a solid boring type. The turret or rotary ring type low temperature catalyst oxidizes early 7G to distinguish between an adsorption zone and a desorption oxidation zone. Or the rotary ring type 2 catalyst oxidizing unit further comprises a cooling zone between the adsorption zone and the desorption oxidation zone. The fixed bed type low temperature catalyst oxidation unit is single tower type, double tower type or multi tower type The method of the present invention comprises the following steps: Ο a. purifying volatile organic compounds by using an incinerator; b. controlling the incinerator outlet temperature, and purifying the low concentration volatile organic compounds in the incinerator, using low temperature Medium catalytic technology Further, step b may further provide ozone to enhance the adsorption and desorption purification function of the catalyst or the low-temperature redox or decomposition reaction. In addition, step a may further utilize a heat exchanger to cause the gas injection tube of the incinerator to be discharged. The trachea recovers thermal energy, and the outlet temperature of the incinerator is controlled to be ~250 ° C, or even 1 〇〇 to 150 ° C. 201038885 [Embodiment] First, please refer to the catalyst of the present invention as shown in the third figure. The purifying device comprises: an incinerator (10) connected with an air introducing pipe (11) and an exhaust pipe (12) for introducing and incinerating volatile organic compounds; and the incinerator (10) comprising double grooves Type thermal storage incinerator (representative), multi-tank thermal storage incinerator, rotary thermal storage incinerator and direct combustion incinerator. A low temperature catalytic oxidation unit (30) is supported by a porous carrier to carry metal or metal oxidation. a catalyst, disposed downstream of the exhaust pipe (12) v of the incinerator (10) for re-purifying the low-concentration volatile organic compounds incinerated by the incinerator (10), and discharged Tube (34) and smoke 111 (35) The purifying gas stream is discharged to the atmosphere; wherein the catalyst comprises Mn, Fe, Co, Cu, Ce, Zn, Ag, Pb, CuO-Mo03, Ag-Mn or a combination thereof; the porous carrier is alumina or zeolite, Including r-Al203, ZSM-5 or a combination thereof; the composition of the catalyst and the porous support includes CuO-Mo03/r-Al203, Ag/ZSM-5, Cu/ZSM-5, Cu-Ce/ZSM- 5. Mn/ZSM-5, Ag-Mn/ZSM-5 or a combination thereof. However, the low temperature catalytic unit (30) preferably has an operating temperature of 75 to 250 ° C, and more preferably an operating temperature of 100 〜 150 ° C; further, the type of the low-temperature catalyst oxidation unit (30) comprises a fixed bed type (representative of the figure), a rotary ring type or a rotary wheel type; wherein the fixed bed type low temperature catalyst oxidation unit is a single tower type The double-turbine or multi-tower type; the rotary or rotary-type low-temperature catalyst oxidation unit has an adsorption zone and a desorption oxidation zone, and further has a cooling zone between the adsorption zone and the desorption oxidation zone. . Further, the porous carrier of the low-temperature catalyst oxidation unit (30) is in the form of pellets, honeycombs, cylinders, foams, 201038885 powder or spheres. In addition, as shown in the fourth figure, an ozone supply unit (4〇) is further disposed between the incinerator (1〇) and the low-temperature catalyst oxidation unit (30) to supply ozone to the low-temperature catalyst oxidation unit (30). ), as a means of enhancing the catalytic absorption and desorption purification function or low-temperature redox or decomposition reaction. In addition, please continue to refer to the fifth figure, further providing a shell-and-tube, plate or heat pipe heat exchanger (50), and the air pipe (丨丨) recovers heat energy from the exhaust pipe (12). And a bypass pipe (ill or 121) that avoids the heat exchanger 3 (50) is disposed in the air intake pipe (11) or the exhaust pipe (12) to control flow through the bypass pipe ( The gas flow rate of m I or 121) is adjusted to the flow rate of heat recovery into the heat exchanger (5〇), thereby adjusting the temperature of the exhaust gas stream introduced into the incinerator (1〇), thereby further limiting the incinerator ( 1)) The inlet and outlet temperatures are high and low. Therefore, the first thermometer (51) and the second thermometer (52) can be set at the inlet and outlet of the incinerator (10) to detect the incinerator) The inlet and outlet temperatures, and thereby the temperature signal is adjusted by a controller (53) to adjust the opening of the control valve (112 or 122) of the bypass pipe (111 or 121) into the heat exchanger (50). The heat recovery gas flow rate, and then the incinerator (1〇)> outlet temperature is controlled at 75~25 (TC, better incinerator outlet The degree is from 1 〇〇 to 150 〇 C. Based on the composition, the catalyst purification device of the present invention uses a volatile organic substance to be purified, and the first stage slave purification treatment is first performed by the incinerator (1 〇). And the low-temperature catalyst oxidation unit performs the second-stage k-low-rolling volatile organic substance purification treatment; and further provides ozone to the 7-low/dish catalyst oxidation unit (3〇) to enhance the absorption of the catalyst. Desorbing purified plumb b or low-war redox or decomposition reaction; and controlling the outlet of the incinerator (1〇) by using the heat exchanger (5〇) according to the operating temperature of the low-temperature catalyst oxidation sheet 201038885 (30) The temperature 'maintains the re-purification efficiency of the low-temperature catalyst oxidation unit, and the recovered heat energy can pre-empt the gas to be purified entering the incinerator (1〇). Therefore, the invention has the complicated processing equipment, that is, Ensure that the gas that is finally discharged meets the requirements and saves energy. In addition, since the double-tank type heat storage incinerator is switched between preheating/heat storage in the heat storage tank, as shown in the first figure, the gas to be treated in the preheating heat storage tank will be because It is discharged without being incinerated, so there is a problem of periodic discharge of untreated gas. Therefore, the design of the second-stage purification treatment by the low-temperature catalyst oxidation unit (3〇) can eliminate this problem invisible. It has the effect of solving the problem of periodically discharging untreated gas in a two-tank incinerator. In summary, the technical means disclosed in the present invention are "newness, progress" and "available for industrial use". In the case of invention patents, the company is invited to give a patent to encourage the invention, and there is no sense of morality. However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention, and those skilled in the art are familiar with the art. The repairs or equivalent changes made in the spirit of the case shall still include the scope of the patent application in this case. 201038885 [Simple description of the diagram] The first figure is an explanatory diagram of the tail gas concentration of the double-tank type thermal storage incinerator. The second figure is a structural illustration of the use of a concentrator to purify the exhaust gas of the incinerator. The third drawing is a structural explanatory view of the present invention. The fourth figure is a structural explanatory diagram of the ozone supply unit of the present invention. The fifth drawing is a structural explanatory view of the heat exchanger of the present invention. [Explanation of main component symbols] (10) Incinerator (11) Air intake pipe (12) Exhaust pipe (111, 121) Bypass pipe (20) Concentrator (30) Low temperature catalyst oxidation unit (34) Discharge pipe (35 Chimney (40) ozone supply unit (50) heat exchanger (51) first thermometer (5 2) second thermometer (53) controller