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Method for composing resin catalytizion filling bed filler and filler composed thereof

A packing and packed bed technology, applied in chemical instruments and methods, chemical/physical/physicochemical processes, chemical/physical processes, etc., can solve problems such as poor efficiency of packed beds

Inactive Publication Date: 2007-10-10
阿塞尔有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These systems are well suited for reactive distillation column packing, where packed bed efficiency is poor due to high void volume to resin volume ratios

Method used

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  • Method for composing resin catalytizion filling bed filler and filler composed thereof
  • Method for composing resin catalytizion filling bed filler and filler composed thereof
  • Method for composing resin catalytizion filling bed filler and filler composed thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0050] 6.3 g of dry Amberlyst  15 The resin is loaded into a graduated glass cylinder 10 (FIG. 3). The particles 11 are substantially spherical with an average size of 0.7 mm. The catalytic bed 12 of dry resin has a volume of 11 cm 3 . The resin was then swelled by exposure to methanol. Catalytic bed 12 (Fig. 4) reaches a volume of 17 cm after expansion 3 , which is equivalent to an expansion coefficient of 1.54, which is equal to 1.55 according to literature (T.Ppken et al.; Ind. Eng. Chem. Res. Journal, 2000, No. 39(7), p. 2607).

example 2

[0052] 4.07 grams of dry Resindion CFS / MB resin was loaded into a graduated glass cylinder 10 (Fig. 5). The particles 11 are substantially spherical with an average size of 0.7 mm. There is a catalyst bed 12 of dry resin whose volume is 5 cm 3 . The resin was then swelled by exposure to methanol. Catalytic bed 12 (Fig. 6) reaches a volume of 12 cm after expansion 3 , which is equivalent to an expansion coefficient of 2.4.

example 3

[0054] A spring 1 of the type shown in Figure 1 and a mixture 5 of the dry exchange resin Resindion CFS / MB having the highest expansion coefficient were placed in the same graduated cylinder 10 used in Examples 1 and 2 (Figure 7) .

[0055] 5 grams of resin plus 9 grams of spring 1, the volume after filling is 12.6cm 3 . After contact with methanol, bed 12 expands (Fig. 8) by about 5%, which equates to a final volume of 13.1 cm 3 .

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PUM

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Abstract

A method for forming packing for resin catalytic packed beds (12), comprising: providing elastic means (1) which are capable of compressing under the pressure applied by resin particles (11) which expand upon contact with a specific work substance, and have characteristics of elasticity and resiliency which are adapted for the expansion factor of the resin; preparing a packing constituted by a mixture of particles (11) of resin and of elastic means (1), mixed in proportions which are selected as a function of the degree of expansion; and loading the packing (5) so as to constitute an elastic catalytic packed bed (12) which is adapted to remain dimensionally stable following the expansion of the resin particles (11) and allow an easy flow of the substance through the catalytic packed bed (12). The packing thus formed comprises a mixture (5) of particles of resin, which can expand upon contact with a specific work substance and elastic means (1) adapted to compress under the pressure applied by the expanding particles and is constituted by proportions of particles (11) and elastic means (1) which are selected as a function of the resin expansion factor.

Description

technical field [0001] The invention relates to a method of forming packings for catalytic packed beds consisting of catalysts consisting of resins, in particular exchange resins, which expand upon contact with a working substance, and to such structured packings for catalytic packed beds It is suitable for improving the hydrodynamic structure of the reactor. Background technique [0002] The use of functionalized resins as catalysts has been widely adopted. However, resins are characterized in that they do not have a fixed size. In fact resin particles have different degrees of swelling in the presence of specific working substances such as certain solvents, and the actual size of the particles depends on the type of substance or solvent used and the degree of crosslinking of the resin. [0003] For this reason, the filling of the reactor is often carried out by loading a slurry of already expanded resin. Otherwise, if the expansion is allowed to take place in the reacto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/02B01J19/30
CPCB01J19/30B01J8/0292B01J2219/30207B01J2219/30265
Inventor D·西亚诺M·纳斯塔西E·桑塔塞萨里亚M·迪瑟里奥R·特瑟M·圭达
Owner 阿塞尔有限责任公司