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活性炭吸附--脱附再生系统

作者: 来源: 日期:2018-1-12 16:28:14 人气:67

设备介绍:

      有机废气就是气态污染物的一部分,来自各个行业所排放的化工废气含氟废气、气态碳氢化合物、恶臭气体,有机废气的治理方法有三种:第一种是催化燃烧法,它利用某种催化剂来分解或使有机废气燃烧后变成无害气体,不能回收;第二种是吸收法,以特定的某种化学液体来吸收有机废气,然后再进行分解,运行成本较高,回收效果不好,局限性较大;第三种就是吸附法,它以活性炭物理吸附为主,应用范围广,具有运行成本低及可回收物料的特点,回收物料可直接循环使用,属于循环经济,清洁生产的范畴。

        吸附法的关键是吸附剂和吸附工艺设备配置。该方法是将有机废气吸附到吸附剂上,然后再将从吸附剂上脱离下来成为液体,收集并处理后即可重新回用于生产或出售。

        回收物质:苯、甲苯、二甲苯、三甲苯、正乙烷、环乙烷、三氯乙烯、醚、丙酮、二氯乙烷、四氢呋喃、乙醇等

工艺过程:

     吸附装置可分为2-3个吸附室,由微电脑控制、自行切换,交替进行吸附解析(干燥)等工艺过程,放空的废气经过减压过滤后进入吸附器进行吸附。吸附一定数量有机废气的GCF(活性炭),用水蒸气进行解吸,解吸出的有机物和水蒸气一起进入冷凝器中,经冷凝的有机物和水进入分层槽,经重力分层,上层的有机物自动溢流至储槽进行回收,下层的冷凝水进入废水处理系统,对溶于水的有机物则需进一步分馏。

活性炭吸附--脱附再生系统特点:

       ★采用自动化控制,操作简单、安全
       ★吸附剂更换周期长
       ★吸收效率高,90%以上

应用行业:

         石油化工、涂装行业、橡胶行业、造纸行业、医药行业等

Equipment introduction:
Organic waste gas is a part of gaseous pollutants, from various industries emissions of chemical waste gas fluorine-containing waste gas, gaseous hydrocarbons, malodorous gases, organic waste gas treatment methods have three kinds: the first is catalytic combustion method, it uses some kind of catalyst to decompose or make the organic waste gas after combustion into harmless gas, can not be recycled; The second is the absorption method, with a specific chemical liquid to absorb the organic waste gas, and then decomposition, higher operating costs, recycling effect is not good, the limitations are larger; The third is the adsorption method, it is given priority to with active carbon physical adsorption, wide application range, with low operating costs and the characteristics of recyclable materials, recycled materials can be directly recycled, belonging to the category of circular economy, clean production.
The key of adsorption method is the configuration of adsorbent and adsorption process equipment. The method comprise that following step of: adsorbing organic waste gas onto an adsorbent, then separating the organic waste gas from the adsorbent into a liquid, and collecting and processing the liquid to be recycled for production or sale.
Recovery materials: benzene, toluene, xylene, trimethylbenzene, n - ethane, cyclohexane, trichloroethylene, diethyl ether, acetone, dichloroethane, tetrahydrofuran, ethanol, etc
Process:
The adsorption device can be divided into 2 - 3 adsorption chambers, controlled by a microcomputer and switched by itself, and the process processes of adsorption analysis ( drying ) and the like are alternately carried out; and the discharged exhaust gas enters the adsorption device after decompression filtration for adsorption. Gcf ( activated carbon ) adsorbing a certain amount of organic waste gas is desorbed by water vapor, the desorbed organic matter and water vapor enter a condenser together, the condensed organic matter and water enter a layering tank, and the upper organic matter automatically overflows to the storage tank for recycling after gravity layering, the lower condensed water enters a wastewater treatment system, and the water-soluble organic matter needs further fractionation.
Characteristics of activated carbon adsorption - desorption regeneration system;
★ automatic control is adopted, and the operation is simple and safe
★ long replacement period of adsorbent
★ high absorption efficiency, more than 90 %
Application industry:
Petrochemical industry, coating industry, rubber industry, paper industry, pharmaceutical industry, etc

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