Co-Mn-Ru/Al2O3 catalyst for the production of high-calorific synthetic natural gas

被引：18

作者：

Lee, Yong Hee ^{[1
]}

Kim, Hyoungsik ^{[2
]}

Choi, Hyun Sook ^{[2
]}

Lee, Dae-Won ^{[1
]}

Lee, Kwan-Young ^{[1
,3
]}

机构：

[1] Korea Univ, Dept Chem & Biol Engn, Seoul 136713, South Korea

[2] Korea Gas Corp KOGAS, New Energy Technol Res Ctr, Ansan 426790, Gyeonggi Do, South Korea

[3] Korea Univ, Green Sch, Seoul 136713, South Korea

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2015年 / 32卷 / 11期

关键词：

Methanation; Fischer-Tropsch; Cobalt Catalyst; Heating Value; FISCHER-TROPSCH CATALYSTS; REDUCIBILITY; SELECTIVITY; PROMOTION; CO/SIO2; MN; RU;

D O I：

10.1007/s11814-015-0052-8

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Standard heating value for natural gas of South Korea, which imports LNG with high heating value is 10,400 kcal/Nm(3), while the heating value of conventional SNG is less than 9,500 kcal/Nm(3). Then the heating value of SNG should be enhanced to be used as city gas. In this study, Co-Mn-Ru/Al2O3 was applied in methanation to increase the heating value of the product gas. The role of each component and optimum composition where C-2-C-4 yield was highest were revealed. Mn enhanced the surface acidity, and promoted carbon-rich environment on the surface, which resulted in the increase of C-2-C-4 yield. Ru enhanced the reducibility of catalysts, and it resulted in high activity at lower temperature. As a result, optimum composition was 10Co-6Mn-2.5Ru/Al2O3. In addition, to replace Ru component, the reducibility of Co was enhanced by being reduced at higher temperature of 700 A degrees C, and 20Co-Mn/Al2O3 catalysts achieved similar activity results to 10Co-6Mn-2.5Ru/Al2O3 without Ru.

引用

页码：2220 / 2226

页数：7

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