JPS5852691B2 - catalytic reactor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a catalytic reaction apparatus that allows a catalytic reaction to be carried out continuously during removal or loading of a catalyst.

Generally, a catalyst in a reaction device is degraded by adsorption of poisonous components in the reaction gas, changes in the catalyst composition due to reactions between component substances in the gas and the catalyst, and heat.

Furthermore, when a gas containing dust is subjected to a catalytic reaction, the dust adheres to the catalyst layer, which not only increases the ventilation pressure loss in the packed bed but also reduces the catalytic reaction rate.

Therefore, when the catalytic reaction rate or pressure drop reaches a certain value, gas flows into another idle catalytic reactor installed in parallel, and the gas flows into the catalytic reactor to be filled or taken out. The process is temporarily interrupted, the catalyst is taken out, and the same operation is repeated by filling with a fresh catalyst or a catalyst that has been regenerated by washing the taken out catalyst with water or the like.

Further, the catalyst is constantly taken out and fresh catalyst or regenerated catalyst is constantly introduced into the catalyst bed.

Therefore, it is necessary to install auxiliary equipment associated with these methods, resulting in high equipment costs and disadvantages in that the installation area of the catalytic reaction apparatus is unavoidably large.

The catalytic reactor according to the invention does not have these drawbacks.

That is, according to the present invention, the catalyst packed bed is divided in the gas flow direction by partition plates, and a gas switch is installed at the gas inlet/outlet of the partition, and the gas is taken out or filled in each partition. Catalytic reactions can be carried out continuously in one reactor, although the reaction rate is reduced.

Embodiments of the present invention will be described in detail below with reference to FIG.

FIG. 1 is a schematic sectional view showing the reactor, in which gas is introduced through the catalytic reactor outlet 11, all dampers 1 to 10 are opened during normal reaction, and the catalytic reactor outlet 11 is opened.
Gas is discharged from 2.

When the deterioration of the catalyst reaches a standard or higher level, the dampers 1 and 6 are closed to continue the catalytic reaction.

After closing the damper, remove the catalyst from the catalyst outlet and load fresh catalyst.

At this time, loading and unloading operations may become very easy if the catalyst is previously loaded into a cassette container and the cassette is filled.

After loading, dampers 1 and 6 are opened.

By subsequently performing the same operation on the other partitions, all the catalysts can be replaced.

[Brief explanation of the drawing]

FIG. 1 shows a reactor according to the invention.

Claims (1)

[Claims] 1 At the button of the catalytic reaction device, the catalyst packed bed is divided in the gas flow direction by a partition plate, and a gas switch is provided at the gas inlet/outlet of the partition plate, so that the catalyst can be taken out or loaded without interruption. A catalytic reaction device that allows catalytic reactions to occur.