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Supported Layered Double Hydroxides as CO2 Adsorbents for Sorption-enhanced H2 Production

  • Diana┬áIruretagoyena Ferrer

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xxxvii
  2. Diana Iruretagoyena Ferrer
    Pages 1-6
  3. Diana Iruretagoyena Ferrer
    Pages 7-43
  4. Diana Iruretagoyena Ferrer
    Pages 45-61
  5. Diana Iruretagoyena Ferrer
    Pages 181-185
  6. Back Matter
    Pages 187-209

About this book

Introduction

This thesis presents a combination of material synthesis and characterization with process modeling. In it, the CO2 adsorption properties of hydrotalcites are enhanced through the production of novel supported hybrids (carbon nanotubes and graphene oxide) and the promotion with alkali metals. Hydrogen is regarded as a sustainable energy carrier, since the end users produce no carbon emissions. However, given that most of the hydrogen produced worldwide comes from fossil fuels, its potential as a carbon-free alternative depends on the ability to capture the carbon dioxide released during manufacture. Sorption-enhanced hydrogen production, in which CO2 is removed as it is formed, can make a major contribution to achieving this. The challenge is to find solid adsorbents with sufficient CO2 capacity that can work in the right temperature window over repeated adsorption-desorption cycles.
 
The book presents a highly detailed characterization of the materials, together with an accurate measurement of their adsorption properties under dry conditions and in the presence of steam. It demonstrates that even small quantities of graphene oxide provide superior thermal stability to hydrotalcites due to their compatible layered structure, making them well suited as volume-efficient adsorbents for CO2. Lastly, it identifies suitable catalysts for the overall sorption-enhanced water gas shift process.

Keywords

Hydrotalcites Layered Double Hydroxides Graphene Oxide Carbon Nanotubes CO2 Adsorption Sorption Enhancement Hydrogen Production Adsorption Isotherms Adsorption Kinetics Alkali Promoted Adsorbents

Authors and affiliations

  • Diana┬áIruretagoyena Ferrer
    • 1
  1. 1.Imperial CollegeDepartment of Chemical Engineering LondonUnited Kingdom

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-41276-4
  • Copyright Information Springer International Publishing Switzerland 2016
  • Publisher Name Springer, Cham
  • eBook Packages Energy
  • Print ISBN 978-3-319-41275-7
  • Online ISBN 978-3-319-41276-4
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site
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