Evaluation of released amount of hydrogen after high pressure hydrogen loading in carbonate

被引：5

作者：

Okuda, Rui ^{[1
]}

Komatsu, Keiji ^{[1
]}

Nakamura, Atsushi ^{[1
,2
]}

Ito, Osamu ^{[2
]}

Nambu, Keiki ^{[3
]}

Saitoh, Hidetoshi ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Dept Mat Sci & Technol, 1603-1 Kamitomiolca, Nagaoka, Niigata 9402188, Japan

[2] Chubu Chelest, 3-3-3 Hinagahigashi, Yokaichi, Mie 5100886, Japan

[3] ACCHE Corp, Minato Ku, 1-16-16 Toranomon,Toranomon 1 Chome MG Bldg, Tokyo 1050001, Japan

来源：

RESULTS IN ENGINEERING | 2019年 / 4卷

关键词：

Carbonate; Hydrogen absorption/release; Loading hydrogen at high pressure; Gas chromatography (GC);

D O I：

10.1016/j.rineng.2019.100047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The amount of hydrogen released after high-pressure hydrogen loading in carbonate was evaluated. Calcium carbonate (CaCO3) and Mg-substituted CaCO3 were selected as adsorbents. Their crystal structures, specific surface areas (S-BET), hydrogen content at high pressure, and the amount of hydrogen released in water were investigated. Calcific CaCO3 and (Ca-0.94,Mg-0.06)CO3 structures were identified for the respective samples, and their adsorption forms were found to be of type II as per IUPAC classification. The S-BET values were 2.9-6.8 m(2)/g. The hydrogen content in (Ca-0.94,Mg-0.06)CO3 was found to be higher than that of calcite CaCO3 at high pressures. Furthermore, the amount of hydrogen released by the (Ca-0.94,Mg-0.06)CO3 sample was similar to 20-times higher than that from calcitic CaCO3, measured by gas chromatography.

引用

页数：5

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