CO2 capture by means of dolomite in hydrogen production from syn gas

被引：57

作者：

Gallucci, Katia ^{[1
]}

Stendardo, Stefano ^{[1
]}

Foscolo, Pier Ugo ^{[1
]}

机构：

[1] Univ LAquila, Dept Chem Engn, I-67040 Laquila, Italy

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 12期

关键词：

CO2; capture; dolomite; spherical grains; kinetic models;

D O I：

10.1016/j.ijhydene.2008.03.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The production of pure hydrogen from renewable or fossil energy sources can be achieved by purifying the syn gas obtained as a result of a steam gasification process. Depleting of the syn gas carbon-containing compounds by means of CO2 capture on calcined dolomite has been carried out. The dolomite behavior as CO2 sorbent and its regeneration has been investigated by means of Linseis (TG-DTA) coupled with FT-IR spectrometer. Original and heat-treated dolomite has been characterized by XRF and SEM in order to detect the composition and the morphology. A simple modeling approach has been applied to the investigation of the CO2 sorption kinetic. The results of this work show good agreement between model predictions and experimental data obtained either by SEM micrographs of dolomite particles at different stages of the calcination/carbonation cycle, and by TG curves of CaO recarbonation as a function of time. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：3049 / 3055

页数：7

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