Waste gas recovery processing system and recovery processing technique used in chemical car loading

Abstract

The invention relates to a waste gas recovery processing system and recovery processing technique used in chemical car loading. The system comprises a storage tank, a tank car, a pipeline, a condensation separation device and an adsorptive separation device, wherein chemicals are delivered from the storage tank to the tank car through the pipeline; the condensation separation device and the adsorptive separation device are connected with each other; the condensation separation device comprises a refrigerating unit, a condenser and a gas-liquid separator which are connected with each other; the adsorptive separation device an adsorption device and a desorption device which are connected with each other; the adsorption device is connected with the gas-liquid separator; and the desorption device is connected with the condenser. By using the system, the adsorption / condensation combined circular recovery processing technique is implemented. The invention can sufficiently implement classified recovery processing of organic chemical products and other components in waste gas, and effectively avoid pollution in the chemical storage tank region and the surrounding environment of the chemical storage tank region due to exhaust emission in the chemical car loading; and the invention is applicable to various chemical storage tank regions and related fields.

Description

technical field [0001] The invention relates to a waste gas recovery and treatment system and a recovery treatment process for various chemical product storage tank farms, in particular to a waste gas recovery treatment system and a recovery treatment process for loading chemicals into vehicles. Background technique [0002] At present, chemical products are widely used, and the land for storage is increasing day by day, forming many storage areas and chemical transfer storage areas of different sizes. In these different types of chemical storage areas, there are mainly two types of exhaust gas: volatile gas emitted by tank trucks when chemicals are loaded, and exhaust gas emitted by storage tank breathing. The former is the discharge of gas volatilized from the tank when the liquid is loaded into the tanker during the loading process of the tanker; for the latter, the chemical storage tank area is usually a nitrogen-blanketed inner floating roof tank. , with the rise of th...

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Problems solved by technology

The former is the discharge of gas volatilized from the tank when the liquid is loaded into the tanker during the loading process of the tanker; for the latter, the chemical storage tank area is usually a nitrogen-blanketed inner floating roof tank. , with the rise of the inner floating plate, the waste gas in the tank will be discharged through the breathing valve; if these chemical waste gases are directly discharged into the atmosphere, it will not only cause waste of resources, but also cause serious environmental pollution and safety hazards

In addition, various chemicals have varying degrees of volatilization, especially when the chemicals are loaded into vehicles, the volatilization of related chemicals is large, which can easily cause waste of chemicals. At the same time, it is easy to cause the storage area and the air around the storage area to be polluted, especially Especially in the storage area of ​​organic chemicals, this kind of pollution and waste is particularly serious. If not handled in time, the volatilized and / or spilled chemicals may react with each other, resulting in more serious impacts

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