Please use this identifier to cite or link to this item:
http://hdl.handle.net/10261/11449
Share/Export:
![]() ![]() |
|
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Title: | Heat requirements in a calciner of CaCO3 integrated in a CO2 capture system using CaO |
Authors: | Rodríguez Gómez, Nuria CSIC; Alonso Carreño, Mónica CSIC ORCID ; Grasa Adiego, Gemma ; Abanades García, Juan Carlos CSIC ORCID | Keywords: | CO2 capture Coal combustion Carbonation Calcination |
Issue Date: | May-2008 | Publisher: | Elsevier | Citation: | Chemical Engineering Journal 138(1-3): 148-154 (2008) | Abstract: | Several systems for CO2 capture using CaO as regenerable sorbent are under development. In addition to a carbonation step, they all need a regeneration step (calcination of CaCO3) to produce a concentrated stream of CO2. Different options for calcination may be possible, but they all share common operating windows that appear when the mass and heat balances in the system are solved incorporating equilibrium data, sorbent performance information, and fuel composition (sulphur and ash content). These relatively narrow operating windows are calculated and discussed in this work. Due to sorbent performance limitations, low carbonation levels of the sorbent in the carbonator are expected and the heat demand in the calciner is dominated by the heating of inert solids flowing in the carbonation chemical loop. High make up flows of fresh limestone reduce this effect by increasing the average reactivity of the sorbent, but they also increase the heat demand in the calciner to calcine the fresh feed of limestone. Hence, an optimum level of sorbent activity appears under different operating conditions, processes and fuel characteristic, and these are discussed in this work. | Description: | 7 pages, 8 figures, 1 table.-- Available online on Jun 12, 2007. | Publisher version (URL): | http://dx.doi.org/10.1016/j.cej.2007.06.005 | URI: | http://hdl.handle.net/10261/11449 | DOI: | 10.1016/j.cej.2007.06.005 | ISSN: | 1385-8947 |
Appears in Collections: | (INCAR) Artículos (ICB) Artículos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Heat_requirements_CaCO3_2008_CEJ.pdf | 372,9 kB | Adobe PDF | ![]() View/Open |
Review this work
SCOPUSTM
Citations
122
checked on May 9, 2022
WEB OF SCIENCETM
Citations
109
checked on May 12, 2022
Page view(s)
583
checked on May 15, 2022
Download(s)
189
checked on May 15, 2022
Google ScholarTM
Check
Altmetric
Dimensions
WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.