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沸石转轮吸附浓缩系统具有多年的实厂运转经验,技术成熟稳定,据调查数据显示其处理效能多可符合目前排放标准VOCS废气处理效率大于90%以上的要求,甚至大多数设置的厂家也能同时符合排放量小于每小时0.6公斤的要求。由于沸石转轮系统是将废气吸附浓缩后,最终导入焚烧系统处理VOCS,以能源节约及符合排放标准要求的观点同时评估,其较为适合每分钟600立方公尺高风量以上,VOCS的总碳化合物浓度介于500~1000ppm的废气特性厂家适用。
The zeolite rotary adsorption concentration system has years of practical operation experience and mature and stable technology. According to survey data, its treatment efficiency can meet the current emission standard of VOCS waste gas treatment efficiency greater than 90%, and even most manufacturers can meet the requirement of emission volume less than 0.6 kilograms per hour. Due to the fact that the zeolite rotary system adsorbs and concentrates the exhaust gas, which is then introduced into the incineration system to treat VOCs, it is evaluated from the perspectives of energy conservation and compliance with emission standards. It is more suitable for exhaust gas characteristics with a high air volume of over 600 cubic meters per minute and a total carbon compound concentration of VOCs ranging from 500 to 1000 ppm.

如果有机废气中含有较多量的高沸点物质则并不适合单独或直接使用此系统处理。如光电业中的应用,该产业制造工序及使用的物料与半导体相近,不过在含高沸点VOCS去光阻剂的使用量上,以及其所可能产生的微粒浓度远高于半导体业。高沸点VOCS虽然容易吸附于沸石转轮上,但由于系统设计的考虑,通常会使得脱附高沸点VOCS的温度不足,所以往往造成脱附不易,且高沸点VOCS将蓄积在转轮上,占据吸附位置,影响系统整体效能,含硫有机微粒亦会阻塞沸石转轮吸附表面,这两项因素成为部分光电业应用沸石转轮吸附浓缩系统效率不佳的主要原因。
If organic waste gas contains a large amount of high boiling point substances, it is not suitable to use this system alone or directly for treatment. In the application of photovoltaics, the manufacturing process and materials used in this industry are similar to semiconductors, but the amount of high boiling point VOCs photoresist used and the possible concentration of particles it may produce are much higher than those in the semiconductor industry. Although high boiling point VOCs are easily adsorbed on zeolite wheels, due to system design considerations, the temperature for desorption of high boiling point VOCs is usually insufficient, which often makes desorption difficult. Moreover, high boiling point VOCs will accumulate on the wheel, occupy the adsorption position, and affect the overall efficiency of the system. Sulfur containing organic particles will also block the adsorption surface of zeolite wheels. These two factors have become the main reasons for the poor efficiency of some optoelectronic applications of zeolite wheel adsorption and concentration systems.
所以如果VOCS废气中含有较多量的高沸点物质,想要应用沸石转轮吸附系统,建议在进入系统前端加装冷凝器,活性炭网栅及除雾器等设备,这样将有效处理高沸点VOCS。所剩下的半导体及光电业VOCS废气组成成分都是中低沸点物质,则可引导至后端沸石吸附浓缩焚烧系统作处理,即可解决以往高沸点VOCS所造成的问题。
So if VOCs exhaust gas contains a large amount of high boiling point substances and a zeolite rotary adsorption system is desired, it is recommended to install equipment such as a condenser, activated carbon mesh grid, and defogger at the front end of the system to effectively treat high boiling point VOCs. The remaining semiconductor and optoelectronic VOCs exhaust gases are composed of low to medium boiling point substances, which can be directed to the back-end zeolite adsorption concentration incineration system for treatment, thus solving the problems caused by high boiling point VOCs in the past.
如果是废气中含有高浓度的颗粒,则必须有粉尘处理装置设置在沸石转轮的前端,以避免这些颗粒在沸石的蜂巢结构中沉积,其中最简单的粉尘过滤装置为单层滤布,但其仅对较大颗粒的过滤效率较佳,无法有效处理较小粒径的颗粒,因此适用于既设空间较小的工厂,其对沸石转轮的寿命延长作用仍然有限。而拟新设置的工厂,若能预留空间给较有效的微粒处理装置(如布袋集尘装置),亦可使沸石转轮设备的寿命有效延长。
If the exhaust gas contains high concentrations of particles, a dust treatment device must be installed at the front end of the zeolite wheel to prevent these particles from depositing in the honeycomb structure of the zeolite. The simplest dust filtration device is a single-layer filter cloth, but it only has a better filtration efficiency for larger particles and cannot effectively treat smaller particles. Therefore, it is suitable for factories with small existing spaces, and its effect on extending the life of the zeolite wheel is still limited. If the newly planned factory can reserve space for more effective particle treatment devices (such as bag dust collection devices), it can also effectively extend the service life of the zeolite wheel equipment.
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