Jump to main content
Jump to site search
SCHEDULED MAINTENANCE Close the message box

Maintenance work is planned for Monday 16 August 2021 from 07:00 to 23:59 (BST).

Website performance may be temporarily affected and you may not be able to access some PDFs or images. If this does happen, refreshing your web browser should resolve the issue. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 7, 2020

Big problem, little answer: overcoming bed agglomeration and reactor slagging during the gasification of barley straw under continuous operation

Author affiliations

Abstract

Defluidisation as a result of reactor bed agglomeration is a global challenge associated with the gasification of lignocellulosic biomass waste, specifically its high inorganic content. The use of conventional water leaching has been scrutinised for the removal of inorganic constituents from barley straw, a highly abundant waste feedstock with a high ash content. The resulting pre-treated material was subsequently gasified at 750 °C and 850 °C under continuous flow, where it was found that bed agglomeration as a result of the ash melting induced mechanism can be eliminated, as visualised by SEM and EDX studies. Here, the presence of eutectic mixtures result in the fusing of a SiO2 rich bed material that causes a sudden pressure drop in the reactor, resulting in a forced shutdown. Leached barley straw was found to effectively solve this issue and sustained gasification for a long period of time, as well as limiting inorganic based decoration on the surface of bed material grains after reaction. Additionally, leaching was found to enhance the production of low carbon fuel gases where an improved product yield of 31.9 vol% and 37.3 vol% for CO and CH4 was observed at 850 °C, as compared to untreated equivalent.

Graphical abstract: Big problem, little answer: overcoming bed agglomeration and reactor slagging during the gasification of barley straw under continuous operation

Supplementary files

Article information


Submitted
30 Jan 2020
Accepted
25 May 2020
First published
25 May 2020

This article is Open Access

Sustainable Energy Fuels, 2020,4, 3764-3772
Article type
Paper

Big problem, little answer: overcoming bed agglomeration and reactor slagging during the gasification of barley straw under continuous operation

H. A. Alabdrabalameer, M. J. Taylor, J. Kauppinen, T. Soini, T. Pikkarainen and V. Skoulou, Sustainable Energy Fuels, 2020, 4, 3764 DOI: 10.1039/D0SE00155D

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements