Without burning gas or replacing carbon, how can the compressed condenser film recover solvents?

Without burning gas or replacing carbon, how can the compressed condenser film recover solvents?

Many enterprises will ask the same question when they first hear about the recovery process of compressed condensate membrane: without burning gas or carbon exchange, what does it rely on to recover the solvent? The answer is to rely on two things: low temperature and a membrane.

The first step is low temperature. After the exhaust gas enters the equipment, it first passes through the three-stage condensation unit. The temperature gradually dropped from normal temperature to minus 15 to minus 25 degrees. At this temperature, most organic solvents directly change from gaseous to liquid, like water vapor condensing into water droplets, flowing out from the bottom of the device and directly recycled in barrels. Ethyl acetate, acetone, toluene, methylene chloride, n-hexane, are all recovered in this way.

The second step is a membrane. There is still a small amount of solvent in the uncondensed tail gas, and the direct emission concentration may be on the high side. At this timegas separation membraneIt's time to take the stage. This membrane has a different attitude towards solvent molecules and air molecules. Solvent molecules dissolve fast in the membrane, run fast, preferentially pass through the membrane to be enriched, and then return to the front end of the condensation to continue processing. Air molecules run slowly and are trapped and discharged directly. Through this check of the membrane, the residual solvent is sent back to the condenser again and again until most of it is liquefied and recovered.

Do not burn gas, because the whole process is a physical cooling, do not need to heat. Do not change carbon, because there is no adsorption link, do not need consumables. The membrane module is changed every three to five years, and the daily maintenance is to check the refrigeration pressure and clean the heat exchanger fins. Equipment operation only electricity, annual electricity cost ratioRTOThe gas bill is more than half lower.

This is the bottom gas of the compressed condensate film recovery process. Don't rely on burning, don't rely on suction, rely on low temperature and a film, the solvent in the exhaust gas into money.

LuoyangWohong PetrochemicalEquipment Co., Ltd. focuses on the compression condensation film recovery process, providing free working condition detection and benefit measurement. The company is located at W2-1, Dongda Science and Technology Industrial Park, Luoxin Industrial Cluster Zone, Xin’an County, Luoyang City. Website: www.wohongshihua.com.