SU1667920A1 - Gas converter - Google Patents

Abstract

The invention relates to the construction of chemical reactors and can be applied in the manufacture of synthesis products by converting gaseous mixtures, for example nitric acid, and makes it possible to increase the economy. The gas converter contains a vertical case with a removable cover. Inside the case is placed on the supporting device a catalyst platinum mesh. The contact gas, entering the body, passes through the catalyst grid, where it is converted. The edges of the mesh are clamped between the lower support and upper removable rings. The rings are made with grooves through the thickness, which are placed on their inner side evenly around the circumference. 3 il.

Description

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The invention relates to the construction of chemical reactors and can be applied in the manufacture of synthesis products by converting gaseous mixtures, for example nitric acid.

The aim of the invention is to improve the economy.

FIG. 1 schematically shows a gas converter, a longitudinal section; figure 2 - section aa in figure 1; on fig.Z - node I in figure 1.

The gas converter contains a vertical housing 1 with a removable lid 2, a flange connector 3 and nozzles for supplying the initial mixture 4 and discharging the converted gas 5. Case 1 is equipped with a water jacket 6. Inside the case 1 on the supporting device 7 is placed a platinum catalyst grid 8, the edges of which are clamped between the lower support ring 9 mounted on the housing 1 and the upper removable

ring 10. The latter is equipped with clamping bolts 11. placed evenly around the circumference of the ring. The rings 9 and 10 are provided with grooves 12 and 13 that are cut through the thickness and are evenly circumferentially spaced on their inner side between the zones of the bolts 11. The grooves 12 of the ring 9 are arranged symmetrically with the grooves 13 of the ring 10, i.e. each other.

The converter works as follows.

A contact, for example, a mixture of ammonia, methane and oxygen, enters through pipe 4 into body 1, passes through a catalyst grid 8, where it is converted and heated to a temperature of 900–1000 ° C, and discharged through pipe 5 to further technology. Converted gas converter capacity depends on

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from the area of the catalyst grid with which the source gas contacts, therefore making the bearing and removable rings with grooves increases the active surface of the catalyst grid without increasing the overall dimensions of the apparatus, while maintaining the required density of sealing of the edges of the grid in the rings, which allows to increase converter performance and reduce specific consumption platinum and thereby increase efficiency.

Claims (1)

Claims of gas converter containing a vertical case, inside which I support fizl The waiting device contains a catalytic platinoid mesh, the edges of which are clamped between the lower support ring and the upper removable ring by means of clamping bolts evenly spaced around the circumference of the removable ring, characterized in that the rings are made with through-thickness grooves, placed on their inner side evenly around the circumference in the intervals between the areas of the clamping bolts and symmetrically with respect to the grooves of the other ring. ten at fig 2. figs