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CN-117222598-B - GIS-type zeolite molded body, adsorption device, separation method, and GIS-type zeolite

CN117222598BCN 117222598 BCN117222598 BCN 117222598BCN-117222598-B

Abstract

The purpose of the present invention is to provide a molded body of a GIS-type zeolite with higher strength. An aspect of the present invention relates to a GIS-type zeolite molded body comprising a GIS-type zeolite and a carrier, wherein C/a is equal to or less than 1.30 when the total value of the amounts of potassium and lithium is a and the total value of the amounts of alkali metal is C.

Inventors

  • Yanae Yuji
  • NOMURA KOJI
  • Anagi Takashi
  • IITSUKA TAKEHIRO

Assignees

  • 旭化成株式会社

Dates

Publication Date
20260508
Application Date
20220526
Priority Date
20210607

Claims (20)

  1. 1.A GIS zeolite shaped body comprising: GIS zeolite, and The carrier is used for the preparation of the carrier, In the above-mentioned zeolite of the GIS type, When the total value of the amounts of potassium and lithium is A and the total value of the amounts of alkali metal is C, 1.00< C/A≤1.30 is satisfied, When the total value of the amounts of potassium is D and the total value of the amounts of alkali metal is C, C/D is not more than 1.30, The alkali metal comprises at least sodium.
  2. 2. The GIS zeolite molded body according to claim 1, wherein when the total value of the amounts of potassium and lithium is A and the total value of the values obtained by multiplying the amounts of the respective alkali metals and alkaline earth metals by the valence is B, B/A is not more than 1.30.
  3. 3. The GIS-type zeolite molded body according to claim 2, wherein 1.00< b/a is satisfied.
  4. 4. The GIS zeolite molding according to any one of claims 1 to 3, wherein 1.00< C/D is satisfied.
  5. 5. The GIS-type zeolite molded body according to any one of claims 1 to 3, wherein the carrier comprises 1 or more selected from the group consisting of silica and alumina.
  6. 6. The GIS-type zeolite molded body according to any one of claims 1 to 3, wherein the particle size of the GIS-type zeolite molded body is 20 μm to 300 μm.
  7. 7. The GIS-type zeolite molded body according to claim 6, wherein the GIS-type zeolite molded body is obtained by spray-drying treatment.
  8. 8. The GIS-type zeolite molded body according to claim 6, wherein the GIS-type zeolite molded body has a compressive strength of 6.0MPa or more.
  9. 9. The GIS-type zeolite molded body according to any one of claims 1 to 3, wherein the GIS-type zeolite molded body is a pellet having a length of 3mm to 50mm and a diameter of 1mm to 20 mm.
  10. 10. The GIS-type zeolite molded body according to claim 9, wherein the GIS-type zeolite molded body is obtained by extrusion molding.
  11. 11. The GIS-type zeolite molded body according to claim 9, wherein the GIS-type zeolite molded body has a breaking strength of 20N or more.
  12. 12. The GIS-type zeolite molded body according to any one of claims 1 to 3, wherein the C/a is greater than 1.00 and 1.25 or less.
  13. 13. The GIS-type zeolite molded body according to any one of claims 1 to 3, wherein the C/a is greater than 1.00 and 1.20 or less.
  14. 14. The GIS-type zeolite molded body according to any one of claims 1 to 3, wherein the C/a is greater than 1.00 and 1.15 or less.
  15. 15. The GIS-type zeolite molded body according to claim 2, wherein the B/a is 1.25 or less.
  16. 16. The GIS-type zeolite molded body according to claim 2, wherein B/a is 1.20 or less.
  17. 17. The GIS-type zeolite molded body according to claim 2, wherein B/a is 1.15 or less.
  18. 18. The GIS zeolite molding according to any one of claims 1 to 3, wherein the C/D is 1.25 or less.
  19. 19. The GIS zeolite molding according to any one of claims 1 to 3, wherein the C/D is 1.20 or less.
  20. 20. The GIS zeolite molding according to any one of claims 1 to 3, wherein the C/D is 1.15 or less.

Description

GIS-type zeolite molded body, adsorption device, separation method, and GIS-type zeolite Technical Field The present invention relates to a GIS-type zeolite molded body, an adsorption apparatus, a separation method, and a GIS-type zeolite. Background The zeolite can be used as an adsorbent, a desiccant, a separating agent, a catalyst, a carrier for a catalyst, a washing aid, an ion exchanger, a wastewater treatment agent, a fertilizer, a food additive, a cosmetic additive, etc., and is particularly useful for gas separation applications. They are sometimes also used after undergoing metal exchange depending on the application. As a zeolite that can be suitably used for various applications, for example, patent document 1 describes a GIS-type zeolite in which the diffraction angle 2θ of a specific diffraction peak is within a predetermined range. Here, the GIS-type zeolite refers to a zeolite having a GIS structure in the guidelines for specifying a zeolite structure set by the International Zeolite Association (IZA). Patent document 1 describes the amount of potassium that can be contained in the GIS-type zeolite. Prior art literature Patent literature Patent document 1 Japanese patent No. 6714789 Disclosure of Invention Problems to be solved by the invention When the GIS zeolite described in patent document 1 is used for a catalyst, an adsorbent, or the like, for example, it is assumed that the actual transportation, transfer, and use are performed, and there is room for improvement in terms of further improvement in strength. The present invention has been made in view of the above-described problems, and an object thereof is to provide a molded body of a GIS zeolite having higher strength. Means for solving the problems The present inventors have found that the strength of a molded article obtained by setting the ratio of the total amount of alkali metal and the total amount of potassium and lithium in a predetermined range can be improved in the molded article of the GIS zeolite, and completed the present invention. That is, the present invention includes the following modes. <1> A GIS zeolite shaped body comprising: GIS zeolite, and The carrier is used for the preparation of the carrier, When the total value of the amounts of potassium and lithium is A and the total value of the amounts of alkali metal is C, C/A is less than or equal to 1.30. <2> The GIS zeolite molded body according to <1>, wherein B/A is equal to or less than 1.30, where A is the total of the amounts of potassium and lithium, and B is the total of the values obtained by multiplying the amounts of the alkali metal and alkaline earth metal by the valence. <3> The GIS zeolite molded body according to <1> or <2>, wherein C/D is equal to or less than 1.30 when the total value of the amounts of potassium and the total value of the amounts of alkali metal are equal to C. <4> The GIS zeolite molding according to any one of <1> to <3>, wherein 1.00< C/A is satisfied. <5> The GIS zeolite molding according to any one of <1> to <4>, wherein 1.00< B/A is satisfied. <6> The GIS zeolite molding according to any one of <1> to <4>, wherein 1.00< C/D is satisfied. <7> The GIS-type zeolite molding according to any one of <1> to <6>, wherein the carrier comprises 1 or more selected from the group consisting of silica and alumina. <8> The GIS-type zeolite molding according to any one of <1> to <7>, wherein the particle size of the GIS-type zeolite molding is 20 μm to 300 μm. <9> The GIS-type zeolite molded body according to <8>, wherein the GIS-type zeolite molded body is obtained by spray-drying. <10> The GIS-type zeolite molded body according to <8> or <9>, wherein the compressive strength of the GIS-type zeolite molded body is 6.0MPa or more. <11> The GIS-type zeolite molding according to any one of <1> to <10>, wherein the GIS-type zeolite molding is a pellet having a length of 3mm to 50mm and a diameter of 1mm to 20 mm. <12> The GIS-type zeolite molded body according to <11>, wherein the GIS-type zeolite molded body is obtained by extrusion molding. <13> The GIS-type zeolite molded body according to <11> or <12>, wherein the breaking strength of the GIS-type zeolite molded body is 20N or more. <14> An adsorption device comprising the GIS zeolite molded body according to any one of <1> to <13 >. <15> A separation method, wherein 1 or more selected from the group consisting of CO 2、H2O、He、Ne、Cl2、NH3 and HCl are separated from a mixture containing 2 or more gases selected from the group consisting of H 2、N2, CO and hydrocarbons using the adsorption apparatus of <14 >. <16> The separation method according to <15>, wherein the separation of the above-mentioned gas is performed by a pressure-swing adsorption separation method, a temperature-swing adsorption separation method, or a pressure-swing adsorption separation method. <17> A method for producing a purified gas, wherein 1 or more selected from the group consisting of CO 2、H2O、He、Ne、Cl2、NH3 and HCl i