A rotary bed and a recovery method of hydrocarbon-containing exhaust gas

Abstract

The invention discloses a rotary bed. The rotary bed comprises a cylinder, a bed layer assembly, an upper head and a lower head. A spiral plate is fixed to the inner wall of the cylinder. The spiral plate and a bed layer are in a clearance fit. The bed layer assembly is an integrated structure formed by an upper cover plate, the bed layer, a lower cover plate and a rotating shaft. The upper cover plate and the lower cover plate are respectively fixed to the upper part and the lower part of the rotating shaft. The bed layer is sandwiched between the upper cover plate and the lower cover plate. The lower cover plate is provided with a through hole. The part of the rotating shaft in the bed layer and the part of the rotating shaft above the bed layer are hollow tubular structures. The tube wall of the rotating shaft, in the bed layer, is provided with a plurality of through holes, namely, the part of the rotating shaft is also a liquid distributing tube. The invention relates to a recovery method of hydrocarbon-containing exhaust gas. Crude diesel or crude kerosene is pretreated by utilization of the rotary bed. Materials discharged from a liquid phase outlet of the rotary bed are adopted as an absorbent and used for adsorption treatment of the hydrocarbon-containing exhaust gas. The recovery method is simple in process, economic, reasonable, and free of secondary pollution, and is suitable for adsorption recovery processes of the hydrocarbon-containing exhaust gas.

Description

technical field [0001] The invention relates to a rotary bed and a method for recovering hydrocarbon-containing waste gas, in particular to a method for recovering hydrocarbon-containing waste gas by an absorption method. Background technique [0002] Various oil storage tanks, dirty oil storage tanks, oil loading (ships), oil processing and certain chemical processes generally emit a certain amount of exhaust gas under normal operating conditions, and these exhaust gases contain a relatively high concentration If the hydrocarbons are not recovered effectively, on the one hand, it will cause a large waste of resources, on the other hand, it will cause serious environmental pollution, and at the same time, there will be certain potential safety hazards. [0003] The recovery and treatment methods of hydrocarbon-containing waste gas are more commonly used, such as absorption method, adsorption method, condensation method, membrane oil gas recovery technology, etc., as describe...

AI Technical Summary

Problems solved by technology

The combination of condensation and catalytic oxidation can recover most of the volatile hydrocarbons, and can also achieve up-to-standard discharge of tail gas, but its disadvantages are that the process is long, the operation cost is high, and the economy is affected

[0008] The rotating bed is a kind of equipment used for gas-liquid contact. The rotating bed in the prior art is used for the contact reaction or mass transfer process between the gas phase and the liquid phase. It mainly includes a bed body, a shell, an air inlet, and an air outlet. , liquid inlet, liquid discharge port and other components and structures, the application in other fields has not disclosed the relevant prior art

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