Naphthalene tail gas recovery system

Abstract

The invention discloses a naphthalene tail gas recycling system which comprises a naphthalene tank body and a naphthalene collector. The top of the naphthalene tank body is provided with a naphthalene ventilation hole, the top of the naphthalene collector is provided with an air inlet and an air outlet, the naphthalene ventilation hole is communicated with the air inlet through a pipe, and an induced draft fan is installed at the position of the air outlet. The naphthalene tail gas recycling system further comprises a pipeline connected with loading vehicle tail gas, the pipeline is connected with the pipe, the tail gas discharged out of the naphthalene ventilation hole and a loading vehicle is introduced to the naphthalene collector through the induced draft fan and the pipe to be recycled, the naphthalene collector comprises a collecting device and a water tank, a grid partition is arranged in the collecting device, a spraying pipe for water curtain cooling is installed at the top of the grid partition, the tail gas in the collecting device is cooled through spraying water, and naphthalene particles in the gas are cooled and fall to the water tank below with the stream to be recycled. The naphthalene tail gas recycling system has the advantages that thermal energy consumption and material loss are reduced, physical health of operators is guaranteed, the atmospheric environment is protected, and large economic loss is reduced for enterprises engaged in naphthalene tank transfer operations.

Description

technical field [0001] The invention relates to the technical field of tail gas treatment and recovery, in particular to a liquid naphthalene tail gas recovery system. Background technique [0002] Liquid naphthalene has always been stored in vaulted tanks. During the storage process, naphthalene vapor is precipitated from the vent holes on the top of the tank and floats around the storage tank. With this open storage tank structure, naphthalene is directly discharged out of the storage tank after volatilization, resulting in "volatile absorption." Heat——exhaust the storage tank” cycle results, resulting in heat loss, material loss and additional consumption of naphthalene vapor; in addition, naphthalene crystals have a strong pungent odor and are toxic, and falling around the storage tank is harmful to the health of operators Bring bigger harm, also bring serious pollution to atmospheric environment, bring bigger economic loss to the enterprise that is engaged in liquid nap...

AI Technical Summary

Problems solved by technology

[0004] At present, the tail gas recovery methods widely used include condensation method, adsorption method, condensation plus adsorption method, and membrane absorption method. These four methods are used to recover oily tail gas from storage tanks; however, there is currently no available method for the recovery of naphthalene-containing tail gas. Off-the-shelf technology and equipment for immediate application

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