Multistage cross-flow rotation packed bed mass transfer and reaction equipment

Abstract

The invention belongs to the technical field of mass transfer reaction equipment, and particularly relates to multistage cross-flow rotation packed bed mass transfer and reaction equipment, which is used for solving the problems that existing supergravity equipment is poor in gas phase mass transfer effect intensification, is low in gas treatment capability and the like. The multistage cross-flow rotation packed bed mass transfer and reaction equipment comprises a rotation bed shell, a rotary shaft, two or more than two high-speed rotation packed bed rotors and one or more than one static packed bed stator; the packed rotors and the packed stators are installed alternatively; the packed rotors are all centrally provided with liquid distributors connected with liquid intake pipes; the top of a shell of a rotation bed is connected with a gas exhaust pipe, and the bottom of the shell of the rotation bed is connected with a liquid outlet pipe and a gas inlet pipe. According to the invention, gases and liquids are in contact in a cross flow mode, so that the radial size of a packed layer can be reduced; flooding is difficult to generate; the multistage cross-flow rotation packed bed mass transfer and reaction equipment is especially suitable for treating the heat transfer, the mass transfer and the reaction process of a large amount of gases.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, petrochemical industry, and environmental protection mass transfer reaction equipment, and specifically relates to a multi-stage cross-flow rotating packed bed mass transfer and reaction equipment, which is not only suitable for mass transfer processes controlled by liquid films such as rectification and absorption , which is more suitable for the enhancement of mass transfer process under gas film control. Background technique [0002] Hypergravity technology is a breakthrough technology developed in the 1980s to strengthen the multiphase transfer and reaction process. In the gravity environment, the liquid is sheared and atomized by the filler, the contact area between the phases increases, and the rapid renewal of the surface leads to the great enhancement of the mass transfer, heat transfer and reaction process controlled by the liquid phase. At present, it is mainly used in desulf...

AI Technical Summary

Problems solved by technology

In 2001, Sandilya et al. found that the gas-phase mass transfer process in a rotating packed bed has a lower mass transfer coefficient than that in a packed tower. The transfer rate is very small, the gas phase interface cannot be updated quickly, and the uneven distribution of the liquid phase in the packing will further reduce the mass transfer rate.

The device can carry out multi-stage atomization of the liquid, which greatly increases the degree of dispersion of the liquid phase. Because the internal circulation of the liquid droplets is very violent, the mass transfer coefficient of the liquid film in the liquid droplets of the multi-stage atomization rotary bed is relatively high, but for The intensification effect of the gas film control on the mass transfer process is relatively weak. In 2010, Zhang Yanqing studied the mass transfer performance of the two-stage atomized rotating packed bed. 2 This gas film control process, under similar conditions, its gas volume mass transfer coefficient is an order of magnitude higher than that of traditional packed towers, but lower than that of ordinary cross-flow rotating packed beds

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