Hydrogen Production with In Situ CO 2 Capture at High and Medium Temperatures Using Solid Sorbents

Paula Teixeira, Carmen Bacariza, Patrícia Correia, Carla I. C. Pinheiro and Isabel Cabrita
Additional contact information
Paula Teixeira: Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Carmen Bacariza: Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Patrícia Correia: Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Carla I. C. Pinheiro: Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Isabel Cabrita: Institute of Higher Studies on Education and Sciences, ISEC Lisboa, School of Management, Engineering and Aeronautics, 1750-142 Lisboa, Portugal

Energies, 2022, vol. 15, issue 11, 1-44

Abstract: Hydrogen is a versatile vector for heat and power, mobility, and stationary applications. Steam methane reforming and coal gasification have been, until now, the main technologies for H 2 production, and in the shorter term may remain due to the current costs of green H 2 . To minimize the carbon footprint of these technologies, the capture of CO 2 emitted is a priority. The in situ capture of CO 2 during the reforming and gasification processes, or even during the syngas upgrade by water–gas shift (WGS) reaction, is especially profitable since it contributes to an additional production of H 2 . This includes biomass gasification processes, where CO 2 capture can also contribute to negative emissions. In the sorption-enhanced processes, the WGS reaction and the CO 2 capture occur simultaneously, the selection of suitable CO 2 sorbents, i.e., with high activity and stability, being a crucial aspect for their success. This review identifies and describes the solid sorbents with more potential for in situ CO 2 capture at high and medium temperatures, i.e., Ca- or alkali-based sorbents, and Mg-based sorbents, respectively. The effects of temperature, steam and pressure on sorbents’ performance and H 2 production during the sorption-enhanced processes are discussed, as well as the influence of catalyst–sorbent arrangement, i.e., hybrid/mixed or sequential configuration.

Keywords: H 2 purity; CO 2 capture; Ca-based sorbents; alkali-based sorbents; Mg-based sorbents; enhanced sorption; syngas; reforming; gasification; WGS reaction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/11/4039/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/11/4039/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:11:p:4039-:d:828729

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().