Carbon dioxide adsorbent and method for separating carbon dioxide
TW202633719APending Publication Date: 2026-08-16SUMITOMO SEIKA CHEM CO LTD +1
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Patent Information
- Application Number
- TW114131868
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-10-23
- Filing Date
- 2025-08-21
- Publication Date
- 2026-08-16
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Figure TWG2TA001072562_001 
Figure TWG2TA001072562_002
Abstract
The carbon dioxide adsorbent of the present invention comprises zeolite having an octahedral zeolite-type crystal structure. In this carbon dioxide adsorbent, more than 50% of the cations constituting the zeolite are alkali metal ions, the Si / Al ratio is more than 1.5, and the equilibrium constant of the Langmuir-Freundlich equation obtained from the carbon dioxide adsorption isotherm at 25°C is greater than 0.05 (1 / kPa) and less than 0.3 (1 / kPa). none
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