廢氣脫附-吸附催化燃燒裝置 - 吸附催化燃燒裝置

工作原理
■ 催化法是一種傳統的有機廢氣治理技術,國外早在上世紀四十年代***已經應用于有機廢氣的治理,國內從上世紀七十年代開始應用,是目前我國機廢氣治理的主要技術之一,在目前我國有機廢氣治理設備中,催化燃燒凈化設備約占總數的30%左右。因此本規范制定以后可以規范我國有機廢氣治理中接近30%的工程技術和設備,在工藝設計。設備制造.工程建設檢驗、運行維護與管理等各個方面全面提高我國OCs治理水平,必將極大地推進我國固定源有機廢氣的治理減排工作。
■ Catalysis is a kind of traditional organic waste gas treatment technology, abroad in the early 1940 s has been applied to the management of organic waste gases, domestic application since the 1970 s, is one of China's main machine flue gas treatment technology, in at present, the organic waste gas treatment equipment, catalytic combustion purification equipment for about 30% of the total. Therefore, this code can regulate nearly 30% of the engineering technology and equipment in China's organic waste gas treatment, in process design. Equipment manufacturing, engineering construction, inspection, operation, maintenance, management and other aspects of the comprehensive improvement of China's OCs governance level, will greatly promote China's fixed-source organic waste gas treatment and emission reduction work.
■ 1.1.2 催化燃燒工藝裝置在日本、美國和西歐國家被廣泛地應用于VOC的治理,工藝設備非常成熟,相關的技術標準和使用規范已非常完善,一些大公司都有自己的企業標準,對工藝設計,催化劑的性能要求、反應器制造和工程控制措施等都有詳細的規定。
■ 1.1.2 Catalytic combustion devices in Japan, the United States and Western Europe countries have been widely applied to the governance of VOC, process equipment very mature, related technical standards and specifications used has very perfect, some big companies have their own enterprise standards, the process design and performance requirements of the catalysts, reactor manufacturing and engineering control measures are detailed rules.

■ 1.1.3 目前的OCs的治理技術中,催化燃燒技術發展較早,技術上也相對成熟,對于大多數有機污染物而言是一種行之有效的治理方法,因此在VOCs的治理中得到了廣泛應用。早期的催化燃燒技術主要用于高濃度或者高溫排放的有機污染物的治理,由于對空氣的加熱升溫需要耗費大量的熱能(電加熱或者燃料加熱),在大風量。低濃度的OCs治理中運行成本過高,因此近年來發展了針對低濃度有機廢氣凈化的蓄熱式催化燃燒技術( Regenerative Catalytic Oxidizer簡寫為RCO)。
■ 1.1.3 The technology of the current governance of OCs, catalytic combustion technology development earlier, technology is relatively mature, for most organic pollutants (pops) is an effective management method, therefore the VOCs has been widely applied in the management. The early catalytic combustion technology was mainly used for the treatment of organic pollutants discharged at high concentration or high temperature. Due to the heating of the air, a large amount of heat energy (electric heating or fuel heating) was required to be consumed in large air volume. High cost of operation in treatment of low concentration of OCs, so in recent years developed for low concentration organic waste gas purification of Regenerative Catalytic combustion technology (Regenerative Catalytic Oxidizer shorthand for RCO).
■ 1.1.4 蓄熱式催化燃燒技術是在催化燃燒技術的基礎上增加了一套熱能儲存與再利用裝置。通常利用蜂窩狀的陶瓷體作為蓄熱體,將催化反應過程所產生的熱能通過蓄熱體儲存井用以加熱待處理廢氣,充分利用有機物燃燒所產生的熱能,從而達到節能的目的,和常規催化燃燒技術相比,蓄熱式催化燃燒技術可以大大降低設備運行功率,主要應用于較低濃度的有機廢氣的凈化（一般在500-3000mg/m之間), 國內外的研究與實踐已經證明,對于有機廢氣的治理,畜熱式催化燃燒技術是比較經濟有效、應用前景廣闊的凈化技術之一。中科院生態環境研究中心在上世紀九十年代初研制過蓄熱式催化燃燒裝置,并進行了試用,但由于設計和設備加工技術不過關,特別是在高溫操作下切換閥門易損害,該技術未能推廣應用。同時期美囯恩格爾哈德公司***木材生產工藝中所排放的有機廢氣設計了一種蓄熱式催化燃燒裝置,但未見在其他行業推廣使用。上世紀末日本三菱公司設計了利用移動閥切換的蓄熱裝置,采用具有高蓄熱能力的陶瓷蜂窩體,很好地解決了這個問題,并進行了實際應用,成為目前發達國家有機廢氣治理的主體技術之一。例如3M公司用RCO技術處理含丁酮等溶劑的廢氣,通用汽車公司用RCO技術處理含苯乙烯的廢氣,飛利浦電子公司用RCO技術處理含丙酮、甲苯、丁酮等的廢氣。
■ 1.1.4 Regenerative catalytic combustion technology adds a set of heat energy storage and reuse device on the basis of catalytic combustion technology. Usually use honeycomb ceramic as a regenerator, the heat energy produced by the catalytic reaction process through the regenerator storage Wells for heating gas to be processed, make full use of the combustion heat generated by the organic matter, so as to achieve the purpose of energy saving, compared with the conventional catalytic combustion technology, regenerative catalytic combustion technology can greatly reduce the operating power equipment, mainly used in purification of organic waste gas of low concentration (generally between 500-3000 mg/m), The research and practice at home and abroad have proved that for the treatment of organic waste gas, the catalytic combustion technology is one of the more economical and effective purification technologies with broad application prospects. The ecological environment research center of the Chinese academy of sciences had developed a regenerative catalytic combustion device in the early 1990s and tried it out, but the technology failed to be popularized due to poor design and equipment processing technology, especially the damage of switching valves under high temperature operation. During the same period, the United States engelhard company designed a regenerative catalytic combustion device for the organic waste gas emitted from the wood production process, but it has not been widely used in other industries. At the end of last century, mitsubishi corporation of Japan designed a heat storage device using mobile valve switch, and adopted a ceramic honeycomb body with high heat storage capacity, which solved the problem well. For example, 3M USES RCO technology to treat waste gas containing butanone, general motors USES RCO technology to treat waste gas containing styrene, and philips electronics USES RCO technology to treat waste gas containing acetone, toluene, butanone, etc.