New CO2 Capture Process for Hydrogen Production Combining Ca and Cu Chemical Loops

被引：151

作者：

Abanades, J. C. ^{[1
]}

Murillo, R. ^{[2
]}

Fernandez, J. R. ^{[1
]}

Grasa, G. ^{[2
]}

Martinez, I. ^{[2
]}

机构：

[1] CSIC, INCAR, Spanish Res Council, Oviedo 33011, Spain

[2] CSIC, ICB, Spanish Res Council, Zaragoza 50015, Spain

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2010年 / 44卷 / 17期

关键词：

OXYGEN CARRIERS; METHANE; COMBUSTION; SIMULATION;

D O I：

10.1021/es101707t

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper presents a new solids looping process for capturing CO2 while generating hydrogen and/or electricity from natural gas. The process is based on the sorption enhanced reforming of CH4, employing CaO as a high temperature CO2 sorbent, combined with a second chemical loop of CuO/Cu. The exothermic reduction of CuO with CH4 is used to obtain the heat necessary for the decomposition of the CaCO3 formed in the reforming step. The main part of the process is completed by the oxidation of Cu to CuO, which is carried out with air diluted with a product gas recycle of this reactor at sufficiently low temperatures and high pressures to avoid the decomposition of a substantial fraction of CaCO3.

引用

页码：6901 / 6904

页数：4

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