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    [有機廢氣] 關于有機廢氣處理中RTO和RCO的知識

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    3373843實名認證 發表于 2011-8-31 17:57:00 | 只看該作者 |只看大圖 |閱讀模式 打印 上一主題 下一主題

    蓄熱式熱力焚化爐英文名為“Regenerative Thermal Oxidizer”,故簡稱為“RTO”.國內主要做RTO的有:艾瑟爾涂裝、ACRspraytech 等著名公司,其原理是把有機廢氣加熱到760攝氏度以上,使廢氣中的VOC在氧化分解成二氧化碳和水。氧化產生的高溫氣體流經特制的陶瓷蓄熱體,使陶瓷體升溫而“蓄熱”,此“蓄熱”用于預熱后續進入的有機廢氣。從而節省廢氣升溫的燃料消耗。陶瓷蓄熱體應分成兩個(含兩個)以上的區或室,每個蓄熱室依次經歷蓄熱-放熱-清掃等程序,周而復始,連續工作。蓄熱室“放熱”后應立即引入部分已處理合格的潔凈排氣對該蓄熱室進行清掃(以保證VOC去除率在95%以上),只有待清掃完成后才能進入“蓄熱”程序。作為一種蓄熱式有機廢氣處理設備,它的特點是:行費用省,有機廢氣的處理效率高的優點,在國內外被廣泛地用于涂裝工藝的烘爐廢氣處理,以及化工電子等其他行業的同類廢氣處理。

    適應廢氣:中低濃度100~3500mg/m3 分解效率:95%--99%

    技術特點:生產排出的有機廢氣經過蓄熱陶瓷的加熱后,溫度迅速提升,在爐膛內燃氣燃燒加熱作用下,溫度達到800℃,有機廢氣中的VOC在此高溫下直接分解成二氧化碳和水蒸氣,形成無味的高溫煙氣,然后流經溫度低的蓄熱陶瓷,大量熱能即從煙氣中轉移至蓄熱體,用來加熱下一次循環的待分解有機廢氣,高溫煙氣的自身溫度大幅度下降,再經過熱回收系統和其他介質發生熱交換,煙氣溫度進一步降低,最后排至室外大氣。現在這種設備已經是一種過時的產品,已經被吸附脫附催化燃燒代替。

    蓄熱式催化燃燒法(Regenerative Catalytic Oxidation),簡稱RCO:該法與RTO相同,也是近10余年內發展起來的新技術,凈化率高,適應性強,能耗在燃燒法中最低,無二次污染,應用于廢氣濃度高的場合比較多。

    RCO是一種新的催化技術,它具有RTO高效回收能量的特點和催化反應的低溫工作的優點,將催化劑置于蓄熱材料的頂部,來使凈化達到最優,其熱回收率高達95%.

    RCO系統性能優良的關鍵是使用專用的、浸漬在鞍狀或是蜂窩狀陶瓷上的貴金屬或過渡金屬催化劑,氧化發生在250-500℃低溫,既降低了燃料消耗,又降低了設備造價。

    現在,有的國家已經開始使用RCO技術取代CO進行有機廢氣的凈化處理,很多RTO設備也已經開始轉變成RCO,這樣可以消減操作費用達33%-50%.經反應后,有毒的HC化合物轉化為無毒的CO2和H2O,從而使污染得到治理。

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    沙發
    wzcc 發表于 2013-6-27 10:09:09 | 只看該作者
    拿分走人呵呵,樓下繼續!
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    板凳
    zhouye 發表于 2014-7-11 13:21:16 | 只看該作者
    太棒了!
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    地板
    kill123 發表于 2015-6-9 09:33:37 | 只看該作者
    拿分走人呵呵,樓下繼續!
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    快樂的老鼠 發表于 2015-6-9 10:03:23 | 只看該作者
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    6#
    binzai8120 發表于 2015-6-9 10:29:23 | 只看該作者
    學習了,多謝!
    追問:RTO后可以加余鍋嗎?
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    7#
    dahua 發表于 2015-6-16 05:27:52 | 只看該作者
    技術描述  很中肯 但是 RTO  RCO  吸附  等技術 各有所長  不存在 互相取代的問題
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    8#
    米斯特倪 發表于 2016-12-19 13:21:46 | 只看該作者

    拿分走人呵呵,樓下繼續!
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    米斯特倪 發表于 2016-12-20 09:13:37 | 只看該作者
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    10#
    volitan 發表于 2016-12-29 16:04:22 | 只看該作者
    拿分走人呵呵,保持隊形
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    11#
    lcg_03552 發表于 2017-5-9 10:13:09 | 只看該作者
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    mlzg 發表于 2017-5-9 10:59:40 | 只看該作者
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    13#
    ZKTL_ZHB 發表于 2017-5-9 15:28:37 | 只看該作者
    學習學習RTO的知識
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    14#
    一刀 發表于 2017-5-24 15:25:46 | 只看該作者
    有個圖紙嗎
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    15#
    此包子很懶 發表于 2017-5-31 17:33:26 | 只看該作者

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    ENDER00785111 發表于 2018-4-17 09:24:41 | 只看該作者
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    彝之風 發表于 2018-5-1 14:59:27 | 只看該作者
    學習了。講的很清洗。
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