上海兴通环保有限公司活性炭吸附浓缩+冷凝回收设备

活性炭吸附浓缩+冷凝回收设备

详细说明

工艺流程/Technological process

技术特点/Technical characteristics

PLC全自动化控制，配套可操作触摸屏，人机互动性高，节能省力；技术成熟可靠，设备运行稳定；吸附床内配套消防喷淋系统，当碳层温度异常，启动消防喷淋，充分保证设施安全；活性炭吸附塔配泄爆膜片，当系统内部压力异常升高，泄爆膜片破裂，保护吸附塔因内部压力过载而发生重大事故；多重安全保护系统：非稳态控制、温度预警、停机警报及故障应急处置措施等。

1 活性炭纤维（颗粒）装填量少，大幅度降低了尾气净化回收装置的造价

2 高品质、高效率地回收尾气中的有机物

3 适用范围比较广

4 装置紧凑，结构巧妙，气阻小，占地少，运转能耗低

5 全自动运行，操作简单，便于维修，运转安全

6 环境效益与经济效益显著，投资回收期短

PLC automatic control, supporting operation touch screen, man-machine interactive, energy saving and labor saving; the technology is mature and reliable, stable operation of the equipment; in the adsorption bed supporting fire sprinkler system, when the carbon layer temperature anomalies, start the fire sprinkler, and fully guarantee the safety facilities; activated carbon adsorption tower with venting diaphragm, when the abnormal rise of internal system vent pressure, diaphragm rupture, internal pressure overload protection adsorption due to the occurrence of major accidents; multiple safety protection system: non steady control, temperature warning, alarm and shutdown fault emergency disposal measures.

1, the loading of activated carbon fiber (granule) is little, which greatly reduces the cost of the tail gas purification and recovery device

2 high quality and high efficiency recovery of organic compounds in exhaust gas

3, a wide range of applications

4, the utility model has the advantages of compact structure, artful structure, small air resistance, little occupation of land and low energy consumption

5, fully automatic operation, simple operation, easy maintenance, safe operation

6, the environmental and economic benefits are remarkable, and the investment recovery period is short

工艺说明/Process description

（1）预处理阶段

废气中可能会含有氯化氢，硫酸雾等酸性气体或者粉尘，为了防止其对后续设备造成严重腐蚀或者对活性炭造成堵塞，需对废气进行预处理。预处理采用填料式喷淋洗涤塔，喷淋液选择碱液酸性气体进行中和处理或者采用干式过滤器对粉尘进行过滤处理。

（2）活性炭吸附阶段

经过前面的预处理后，废气通入后端的活性炭吸附/脱附塔进行吸附处理，活性炭表面存在着吸引力（分子间范德华力），将通过活性炭微孔的有机气体吸附在活性炭表面，去除废气中的有机物，达到净化气体的作用。

（3）活性炭脱附阶段

活性炭脱附时采用蒸汽对活性炭床层直接加热，将活性炭中吸附的有机成分蒸出，蒸出来的混合蒸汽进入冷凝器中通过冰水对其进行冷却，冷凝成液态，进入分离桶中分离，分离后的废水进入污水站，分离后的有机溶剂进入储罐，用于后续回收。不能被冷凝的不凝气通入吸附总管，送入吸附罐中进行吸附处理。

（4）活性炭烘干阶段

脱附阶段有部分蒸汽冷凝成水留在的活性炭床层，脱附完成后需要对床层进行烘干。烘干配置单独的烘干风机，烘干风机入口设置高效过滤器，并设蒸汽加热器对新风进行加热，加热到60℃左右，通入活性炭罐中将碳层中的水分烘干。烘干后的吸附罐充氮气进行保护操作，等待下一次吸附。

(1) pretreatment stage;

Exhaust gas may contain hydrogen chloride, sulfuric acid mist and other acidic gases or dust. In order to prevent serious corrosion of the follow-up equipment or cause blockage of activated carbon, waste gas should be pretreated. The pretreatment adopts a packed spray washing tower, the spraying liquid selects the alkali acid gas for neutralization treatment, or the dry filter is used for filtering the dust.

(2) activated carbon adsorption stage;

After pretreatment before, activated carbon adsorption / desorption gas pass into the rear tower adsorption treatment, the surface of activated carbon (van Edward has attractive force between the molecules), will be adsorbed on the surface of activated carbon by organic gas microporous activated carbon, removal of organic matter in waste gas, purifying gas effect.

(3) activated carbon desorption stage;

The desorption of activated carbon by steam direct heating of the activated carbon bed, organic components of activated carbon adsorption of steamed, steamed mixed steam into the condenser by ice water to cool it and condensed into liquid, separated into the separation tank, the separated waste water into the sewage station, after the separation of organic solvent into the tank, for subsequent recovery. The non condensable gas which can not be condensed is absorbed into the adsorption main pipe and is sent into the adsorption tank for adsorption treatment.

(4) drying stage of activated carbon;

In the desorption stage, some of the steam is condensed into the activated carbon bed, and after the desorption is completed, the bed is dried. The drying machine is provided with a separate drying fan, and the inlet of the drying fan is provided with an efficient filter, and a steam heater is arranged to heat the fresh air, and the temperature is heated to about 60 DEG C, and the moisture in the carbon layer is dried through an activated carbon canister. After drying, the adsorption tank is filled with nitrogen to protect operation and wait for the next adsorption.

应用领域/application area

可回收沸点在20℃～200℃范围的溶剂，如C6H6、C6H12、CH3COCH3、C3H6O、(CH3)2CHOH、CH3COOH、DMF、DMAC、汽油(C2-C8)、CS2、CCl4等。 The solvent can be recovered at a range of 20 DEG C to 200 DEG C, such as C6H6, C6H12, CH3COCH3, C3H6O, (CH3) 2CHOH, CH3COOH, DMF, DMAC, gasoline (C2-C8), CS2, CCl4, etc..

The solvent can be recovered at a range of 20 DEG C to 200 DEG C, such as C6H6, C6H12, CH3COCH3, C3H6O, (CH3) 2CHOH, CH3COOH, DMF, DMAC, gasoline (C2-C8), CS2, CCl4, etc.. The, solvent, can, be, at, a, range, of, 20, DEG, C, to, DEG, C, such, as, C6H6, C6H12, CH3COCH3, C3H6O, (CH3), 2CHOH, CH3COOH, DMF,,, DMAC, recovered, gasoline (C2-C8), CS2, CCl4, etc..