Issue 50, 2017, Issue in Progress
From the journal:

RSC Advances

Transformation behavior of potassium during pyrolysis of biomass

Chen Chen, ORCID logo a   Zhongyang Luo,a   Chunjiang Yu,a   Tao Wang*a  and  Hengli Zhanga  

* Corresponding authors

a State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
E-mail: oatgnaw@zju.edu.cn
Fax: +86-571-87951616
Tel: +86-571-87952205

Abstract

The present work studied the transformation behavior of K involving the change of water-insoluble K and K2CO3 during biomass pyrolysis. KCl-loaded cellulose samples were used as fuels with the aim to determine the key reactions involved during K transformation. For comparision, KCl-loaded char samples were used as fuels to eliminate the effect of organics in cellulose on K transformation. The total amounts of K, and water-soluble K, Cl−, and CO32− in the fuels and in the obtained solid residues were quantified. The quantification results indicated that, during the pyrolysis of the KCl-loaded cellulose, the reactions between KCl and active functional groups which are produced from organic matter in cellulose during pyrolysis lead to a certain amount of water-insoluble K formed above 300 °C and the water-insoluble K was transformed into K2CO3 above 600 °C. The reactions between KCl and the organic matter in the cellulose were governed by both the availability of active functional groups produced during cellulose pyrolysis and the amount of KCl. The presence of O2 promoted the generation of K2CO3.

Graphical abstract: Transformation behavior of potassium during pyrolysis of biomass

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C7RA05162J
Article type
Paper
Submitted
08 May 2017
Accepted
12 Jun 2017
First published
19 Jun 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 31319-31326

Permissions

Request permissions

Transformation behavior of potassium during pyrolysis of biomass

C. Chen, Z. Luo, C. Yu, T. Wang and H. Zhang, RSC Adv., 2017, 7, 31319 DOI: 10.1039/C7RA05162J

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

Spotlight

Advertisements