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Title:
METHANOL ADSORBENT, METHOD FOR PRODUCING HIGH-CONCENTRATION METHANOL, AND METHANOL RECOVERY DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/048667
Kind Code:
A1
Abstract:
The methanol adsorbent adsorbs methanol contained in a liquid or a gas that contains water and methanol and contains as an active ingredient a Prussian blue analog represented by general formula (1). AxM[M'(CN)6]y∙zH2O (1) Where, x, y, and z are 0 ≤ x ≤ 3, 0.1 ≤ y ≤ 1.5, 0 ≤ z ≤ 6. A is one or more of a hydrogen ion, an ammonium cation, an alkali metal ion, and an alkaline earth metal ion. M and M' each independently are a cation (however, excluding a hydrogen ion, an ammonium cation, an alkali metal ion, and an alkaline earth metal ion).

Inventors:
SHUDO YUTA (JP)
TAKAHASHI AKIRA (JP)
KAWAMOTO TOHRU (JP)
Application Number:
PCT/JP2023/031589
Publication Date:
March 07, 2024
Filing Date:
August 30, 2023
Export Citation:
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Assignee:
AIST (JP)
International Classes:
C07C29/76; B01D53/72; B01D53/82; B01J20/02; B01J20/34; C02F1/28; C07C31/04
Domestic Patent References:
WO2015186819A12015-12-10
Other References:
ASAI MIYUKI, TAKAHASHI AKIRA, JIANG YONG, ISHIZAKI MANABU, KURIHARA MASATO, KAWAMOTO TOHRU: "Trace Alcohol Adsorption by Metal Hexacyanocobaltate Nanoparticles and the Adsorption Mechanism", THE JOURNAL OF PHYSICAL CHEMISTRY C, AMERICAN CHEMICAL SOCIETY, US, vol. 122, no. 22, 7 June 2018 (2018-06-07), US , pages 11918 - 11925, XP093144260, ISSN: 1932-7447, DOI: 10.1021/acs.jpcc.8b03015
首藤雄大, Mn-Coプルシアンブルー類似体を用いた水蒸気を含むガスからの純メタノールの回収, 機能材料, 07 July 2023, vol. 43, no. 7, pages 27-33, (SHUDO, Yuta, Mn-Co prussian blue analogue for the purification of pure methanol from moist gas, Function & Materials)
SHUDO YUTA, NUMANO SETSUKO, KAWAMOTO TOHRU, TAKAHASHI AKIRA: "Recovery of Pure Methanol from Humid Gas Using Mn–Co Prussian Blue Analogue", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 15, no. 9, 8 March 2023 (2023-03-08), US , pages 11977 - 11982, XP093144262, ISSN: 1944-8244, DOI: 10.1021/acsami.2c17799
SHUDO, YUTA: "The Purification of Methanol using Prussian blue analogues capturing trace methanol gas", PROCEEDINGS OF THE CSJ ANNUAL MEETING, 1 January 2023 (2023-01-01), XP093144266
Attorney, Agent or Firm:
ONO Yuki (JP)
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