1.沸石转轮设备概述

Overview of zeolite rotary equipment

沸石转轮设备是利用吸附－脱附－浓缩三项连续变温的吸、脱附程序，使VOCs废气通过转轮的旋转，同时完成气体的脱附和转轮的再生过程。进入浓缩转轮的有机废气经过沸石吸附净化后直接通过烟囱排放到大气中。被吸附的有机物质因转轮的持续转动（1-6 R/h）而进入脱附区，利用加热气体在此区域脱附，使得低浓度、大风量有机废气浓缩为高浓度、小风量的浓缩气体，进入催化燃烧设备（CO）进行燃烧转化成二氧化碳及水蒸气排放大气中，如此循环工作。

The zeolite rotary equipment utilizes three continuous temperature changing adsorption and desorption processes: adsorption desorption concentration, to rotate VOCs waste gas through the rotary wheel, while completing the gas desorption and regeneration process of the rotary wheel. The organic waste gas entering the concentration wheel is directly discharged into the atmosphere through the chimney after being purified by zeolite adsorption. The adsorbed organic matter enters the desorption zone due to the continuous rotation of the impeller (1-6 R/h). Heating gas is used to desorb in this area, causing low concentration and high air volume organic waste gas to be concentrated into high concentration and low air volume concentrated gas. It enters the catalytic combustion equipment (CO) for combustion and conversion into carbon dioxide and water vapor, which are discharged into the atmosphere. This cycle works.

沸石转轮吸附浓缩+催化燃烧(CO)处理工艺是一种技术成熟、处理效果好的组合技术，此项废气处理技术采用吸附和脱附两种连续变温过程，将低浓度、大风量的有机废气浓缩成高浓度、小风量的浓缩废气。然后再将浓缩后的有机废气，经由风机引入催化燃烧设备，将有机物彻底分解成CO2和H20,净化后气体经排气筒高空达标排放。此技术适用于处理大风量，浓度低，或含有多种有机物的废气处理。

The zeolite rotary adsorption concentration+catalytic combustion (CO) treatment process is a mature and effective combination technology. This waste gas treatment technology adopts two continuous temperature changing processes, adsorption and desorption, to concentrate low concentration and high air volume organic waste gas into high concentration and low air volume concentrated waste gas. Then, the concentrated organic waste gas is introduced into the catalytic combustion equipment through a fan to completely decompose the organic matter into CO2 and H2O. After purification, the gas is discharged at high altitude through an exhaust pipe to meet the standard. This technology is suitable for treating exhaust gases with high air volume, low concentration, or containing multiple organic compounds.

2.沸石转轮+催化燃烧(CO)技术原理

2. Principle of Zeolite Wheel+Catalytic Combustion (CO) Technology

沸石转轮设备分为处理区和再生区，为了保证吸附的整个过程是连续的，吸附区缓慢旋转(1-6r/h)。含有挥发性有机化合物(VOCs)的废气经过轮子的处理区时，轮子内的废气组分被吸附剂吸附，轮子逐渐趋于饱和，处理后的废气净化排空。

The zeolite rotary equipment is divided into a processing area and a regeneration area. In order to ensure the entire adsorption process is continuous, the adsorption area rotates slowly (1-6r/h). When the exhaust gas containing volatile organic compounds (VOCs) passes through the treatment area of the wheel, the components of the exhaust gas inside the wheel are adsorbed by the adsorbent, and the wheel gradually tends to saturate. The treated exhaust gas is purified and discharged.

与此同时，在再生区，高温空气通过吸附饱和的转轮，使转轮上所吸附的废气被脱附并被高温空气带离，从而恢复了转轮的吸附能力，达到连续去除VOCs的效果，同时，提高了废气浓度，便于催化氧化处理。在催化燃烧室中产生的高温废气是高温脱附热风的来源。脱附过程中产生的浓缩废气在进入催化床前先用高温废气在热交换器中换热，对脱附废气进行预热后进入催化床。在催化床中，脱附气体上升到300℃，催化氧化反应时，有机废气氧化为C02和H20，且性，释放热量。排出时所形成的废气(<650℃)与进气进行热交换后，直接排入烟囱或分流作为分离热风使用。连续运行时，吸附转轮缓慢旋转，对连续或间断运行有较好的适应性。

At the same time, in the regeneration zone, high-temperature air passes through the saturated adsorption wheel, causing the adsorbed waste gas on the wheel to be desorbed and carried away by high-temperature air, thereby restoring the adsorption capacity of the wheel and achieving continuous removal of VOCs. At the same time, the concentration of waste gas is increased, making it easier to promote oxidation treatment. The high-temperature exhaust gas generated in the catalytic combustion chamber is the source of high-temperature desorption hot air. The concentrated waste gas generated during the desorption process is first exchanged with high-temperature waste gas in a heat exchanger before entering the catalytic bed. The desorbed waste gas is preheated before entering the catalytic bed. In the catalytic bed, the desorbed gas rises to 300 ℃, and during the catalytic oxidation reaction, the organic waste gas is oxidized to C02 and H20 without toxicity, releasing heat. The exhaust gas (<650 ℃) formed during discharge is directly discharged into the chimney or diverted as separated hot air after heat exchange with the intake air. During continuous operation, the adsorption wheel rotates slowly and has good adaptability to continuous or intermittent operation.

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