Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis

The release of chlorine (Cl) and sulfur (S) during biomass torrefaction and pyrolysis has been investigated via experiments in two laboratory-scale reactors: a rotating reactor and a fixed bed reactor. Six biomasses with different chemical compositions covering a wide range of ash content and ash-fo...

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Main Authors:	Suriyati, Saleh, Flensborg, Julie Pauline, Shoulaifar, Tooran Khazraie, Sarossy, Zsuzsa, Hansen, Brian Brun, Egsgaard, Helge, DeMartini, Nikolai, Jensen, Peter Arendt, Glarborg, Peter, Dam-Johansen, Kim
Format:	Article
Language:	English
Published:	American Chemical Society (ACS Publications) 2014
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/8084/ http://umpir.ump.edu.my/id/eprint/8084/ http://umpir.ump.edu.my/id/eprint/8084/ http://umpir.ump.edu.my/id/eprint/8084/1/Release_of_Cl_and_S_published.PDF

id	ump-8084
recordtype	eprints
spelling	ump-80842017-12-14T06:38:10Z http://umpir.ump.edu.my/id/eprint/8084/ Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis Suriyati, Saleh Flensborg, Julie Pauline Shoulaifar, Tooran Khazraie Sarossy, Zsuzsa Hansen, Brian Brun Egsgaard, Helge DeMartini, Nikolai Jensen, Peter Arendt Glarborg, Peter Dam-Johansen, Kim TP Chemical technology The release of chlorine (Cl) and sulfur (S) during biomass torrefaction and pyrolysis has been investigated via experiments in two laboratory-scale reactors: a rotating reactor and a fixed bed reactor. Six biomasses with different chemical compositions covering a wide range of ash content and ash-forming elements were torrefied/pyrolyzed in the temperature range of 150 – 500 °C. The relative release of chlorine and sulfur was calculated based on mass balance and analysis of the biomass before and after torrefaction. In selected cases, measurement of methyl chloride (CH3Cl) in the gas from straw torrefaction has furthermore been conducted. The release of chlorine from straw was first observed at 250 °C and peaked with about 60-70% at 350 °C. Analysis of the released gas showed that most of the chlorine was released as methyl chloride. Increasing the straw content in the reactor resulted in a lower fractional release of Cl, probably due to more reactive sites is in contact with gas phase Cl species leading to secondary binding of Cl to the solid product. Almost complete release of chlorine was observed for woody biomass at 350 °C. This result is in agreement with previous studies reporting that biomass with a lower chlorine content release a higher fraction of chlorine during the pyrolysis process. A significant sulfur release (about 60%) was observed from the six biomasses investigated at 350 °C. The initial sulfur content in the biomass did not influence the fraction of sulfur release during torrefaction. American Chemical Society (ACS Publications) 2014-05-20 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8084/1/Release_of_Cl_and_S_published.PDF Suriyati, Saleh and Flensborg, Julie Pauline and Shoulaifar, Tooran Khazraie and Sarossy, Zsuzsa and Hansen, Brian Brun and Egsgaard, Helge and DeMartini, Nikolai and Jensen, Peter Arendt and Glarborg, Peter and Dam-Johansen, Kim (2014) Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis. Energy & Fuels, 28 (6). pp. 3738-3746. ISSN 0887-0624 http://dx.doi.org/10.1021/ef4021262 DOI: 10.1021/ef4021262
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Suriyati, Saleh Flensborg, Julie Pauline Shoulaifar, Tooran Khazraie Sarossy, Zsuzsa Hansen, Brian Brun Egsgaard, Helge DeMartini, Nikolai Jensen, Peter Arendt Glarborg, Peter Dam-Johansen, Kim Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis
description	The release of chlorine (Cl) and sulfur (S) during biomass torrefaction and pyrolysis has been investigated via experiments in two laboratory-scale reactors: a rotating reactor and a fixed bed reactor. Six biomasses with different chemical compositions covering a wide range of ash content and ash-forming elements were torrefied/pyrolyzed in the temperature range of 150 – 500 °C. The relative release of chlorine and sulfur was calculated based on mass balance and analysis of the biomass before and after torrefaction. In selected cases, measurement of methyl chloride (CH3Cl) in the gas from straw torrefaction has furthermore been conducted. The release of chlorine from straw was first observed at 250 °C and peaked with about 60-70% at 350 °C. Analysis of the released gas showed that most of the chlorine was released as methyl chloride. Increasing the straw content in the reactor resulted in a lower fractional release of Cl, probably due to more reactive sites is in contact with gas phase Cl species leading to secondary binding of Cl to the solid product. Almost complete release of chlorine was observed for woody biomass at 350 °C. This result is in agreement with previous studies reporting that biomass with a lower chlorine content release a higher fraction of chlorine during the pyrolysis process. A significant sulfur release (about 60%) was observed from the six biomasses investigated at 350 °C. The initial sulfur content in the biomass did not influence the fraction of sulfur release during torrefaction.
format	Article
author	Suriyati, Saleh Flensborg, Julie Pauline Shoulaifar, Tooran Khazraie Sarossy, Zsuzsa Hansen, Brian Brun Egsgaard, Helge DeMartini, Nikolai Jensen, Peter Arendt Glarborg, Peter Dam-Johansen, Kim
author_facet	Suriyati, Saleh Flensborg, Julie Pauline Shoulaifar, Tooran Khazraie Sarossy, Zsuzsa Hansen, Brian Brun Egsgaard, Helge DeMartini, Nikolai Jensen, Peter Arendt Glarborg, Peter Dam-Johansen, Kim
author_sort	Suriyati, Saleh
title	Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis
title_short	Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis
title_full	Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis
title_fullStr	Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis
title_full_unstemmed	Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis
title_sort	release of chlorine and sulfur during biomass torrefaction and pyrolysis
publisher	American Chemical Society (ACS Publications)
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/8084/ http://umpir.ump.edu.my/id/eprint/8084/ http://umpir.ump.edu.my/id/eprint/8084/ http://umpir.ump.edu.my/id/eprint/8084/1/Release_of_Cl_and_S_published.PDF
first_indexed	2023-09-18T22:05:22Z
last_indexed	2023-09-18T22:05:22Z
_version_	1777414672513761280

Release of Chlorine and Sulfur during Biomass Torrefaction and Pyrolysis

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