Experimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal

Although replacing biomass, (e.g., wood chips and pellets), with thinning wood and herbaceous biomass is eco-friendly and economically advantageous, their direct utilization in plant boilers is associated with ash-related challenges, including slagging and fouling. The aim of this study is to determ...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Dae-Gyun Lee, Min-Jong Ku, Kyeong-Ho Kim, Jae-Sung Kim, Seung-Mo Kim, Chung-Hwan Jeon
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	pretreatment ash removal alkali underexploited biomass thinning wood kenaf Technology T
Acceso en línea:	https://doaj.org/article/7368538e24c042319d1e3ce9eee1ed06
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:7368538e24c042319d1e3ce9eee1ed06
record_format	dspace
spelling	oai:doaj.org-article:7368538e24c042319d1e3ce9eee1ed062021-11-11T16:06:40ZExperimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal10.3390/en142173911996-1073https://doaj.org/article/7368538e24c042319d1e3ce9eee1ed062021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7391https://doaj.org/toc/1996-1073Although replacing biomass, (e.g., wood chips and pellets), with thinning wood and herbaceous biomass is eco-friendly and economically advantageous, their direct utilization in plant boilers is associated with ash-related challenges, including slagging and fouling. The aim of this study is to determine the effects of ash removal treatment (ashless biomass (ALB)) in the context of solid fuel power plant boilers. Ash was removed via neutralization of metal ions and carboxylic acids contained in the biomass ash. The ash removal rate of K, Na, Cl was indicated by assessing the total biomass before and after ash removal treatment, via XRF analysis. Co-combustion with sub-bituminous coal and ALB-treated biomass was analyzed using a drop tube furnace and revealed that NOx and SOx values converged converge toward an approximate 10 ppm error, whereas the Unburned Carbon (UBC) data did not exhibit a specific trend. Factors associated with slagging and fouling, (capture efficiency (CE), and energy based growth rate (GRE)) were calculated. All biomass samples without pretreatment exhibited V-shaped variation. Conversely, for ashless biomass (ALB) samples, CE and GRE gradually decreased. Thus, the ALB technique may minimize slagging and fouling in a boiler, thus, reducing internal corrosion associated with ash deposition and enhancing the economic operation of boilers.Dae-Gyun LeeMin-Jong KuKyeong-Ho KimJae-Sung KimSeung-Mo KimChung-Hwan JeonMDPI AGarticlepretreatmentash removalalkaliunderexploited biomassthinning woodkenafTechnologyTENEnergies, Vol 14, Iss 7391, p 7391 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	pretreatment ash removal alkali underexploited biomass thinning wood kenaf Technology T
spellingShingle	pretreatment ash removal alkali underexploited biomass thinning wood kenaf Technology T Dae-Gyun Lee Min-Jong Ku Kyeong-Ho Kim Jae-Sung Kim Seung-Mo Kim Chung-Hwan Jeon Experimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal
description	Although replacing biomass, (e.g., wood chips and pellets), with thinning wood and herbaceous biomass is eco-friendly and economically advantageous, their direct utilization in plant boilers is associated with ash-related challenges, including slagging and fouling. The aim of this study is to determine the effects of ash removal treatment (ashless biomass (ALB)) in the context of solid fuel power plant boilers. Ash was removed via neutralization of metal ions and carboxylic acids contained in the biomass ash. The ash removal rate of K, Na, Cl was indicated by assessing the total biomass before and after ash removal treatment, via XRF analysis. Co-combustion with sub-bituminous coal and ALB-treated biomass was analyzed using a drop tube furnace and revealed that NOx and SOx values converged converge toward an approximate 10 ppm error, whereas the Unburned Carbon (UBC) data did not exhibit a specific trend. Factors associated with slagging and fouling, (capture efficiency (CE), and energy based growth rate (GRE)) were calculated. All biomass samples without pretreatment exhibited V-shaped variation. Conversely, for ashless biomass (ALB) samples, CE and GRE gradually decreased. Thus, the ALB technique may minimize slagging and fouling in a boiler, thus, reducing internal corrosion associated with ash deposition and enhancing the economic operation of boilers.
format	article
author	Dae-Gyun Lee Min-Jong Ku Kyeong-Ho Kim Jae-Sung Kim Seung-Mo Kim Chung-Hwan Jeon
author_facet	Dae-Gyun Lee Min-Jong Ku Kyeong-Ho Kim Jae-Sung Kim Seung-Mo Kim Chung-Hwan Jeon
author_sort	Dae-Gyun Lee
title	Experimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal
title_short	Experimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal
title_full	Experimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal
title_fullStr	Experimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal
title_full_unstemmed	Experimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal
title_sort	experimental investigation of the ash deposition characteristics of biomass pretreated by ash removal during co-combustion with sub-bituminous coal
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7368538e24c042319d1e3ce9eee1ed06
work_keys_str_mv	AT daegyunlee experimentalinvestigationoftheashdepositioncharacteristicsofbiomasspretreatedbyashremovalduringcocombustionwithsubbituminouscoal AT minjongku experimentalinvestigationoftheashdepositioncharacteristicsofbiomasspretreatedbyashremovalduringcocombustionwithsubbituminouscoal AT kyeonghokim experimentalinvestigationoftheashdepositioncharacteristicsofbiomasspretreatedbyashremovalduringcocombustionwithsubbituminouscoal AT jaesungkim experimentalinvestigationoftheashdepositioncharacteristicsofbiomasspretreatedbyashremovalduringcocombustionwithsubbituminouscoal AT seungmokim experimentalinvestigationoftheashdepositioncharacteristicsofbiomasspretreatedbyashremovalduringcocombustionwithsubbituminouscoal AT chunghwanjeon experimentalinvestigationoftheashdepositioncharacteristicsofbiomasspretreatedbyashremovalduringcocombustionwithsubbituminouscoal
_version_	1718432421367513088

Experimental Investigation of the Ash Deposition Characteristics of Biomass Pretreated by Ash Removal during Co-Combustion with Sub-Bituminous Coal

Ejemplares similares