干旱区生态环境知识资源中心(Arid): The influence of torrefaction temperature and reaction time on the properties of torrefied sun-dried millet and sorghum straws from the arid and semi-arid zones of western Africa

Arid

DOI	10.1002/bbb.2464
	The influence of torrefaction temperature and reaction time on the properties of torrefied sun-dried millet and sorghum straws from the arid and semi-arid zones of western Africa
	Ajikashile, Joshua Oluyinka; Alhnidi, Muhammad-Jamal; Bishir, Musa; Kruse, Andrea
通讯作者	Ajikashile, JO
来源期刊	BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
ISSN	1932-104X
EISSN	1932-1031
出版年	2023
卷号	17 期号:3 页码:751-767
英文摘要	There are increasing demands for syngas production. Fossil-based fuels are expensive and environmentally unfriendly. Affordable, sustainable, and environmentally healthy alternatives and sustainable fuel sources are needed. This study focused on producing tor-chars from two different tropical biomasses (from Nigeria, West Africa), which were torrefied and characterized to improve their properties for potential use as sustainable feedstocks in an entrained flow gasifier for syngas production. Torrefaction temperatures of 230, 240, 250, and 270 degrees C and residence times of 30 and 60 min were used to torrefy sundried sorghum straw (SS) and millet straw (MS) at particle size <= 5 mm. The properties of torrefied MS and SS improved significantly due to torrefaction. The optimum conditions for pretreatment of sundried MS and SS were 240 degrees C and 60 min, at which increased energy density significantly compensated for the severe mass loss and significant degradation of hemicellulose and cellulose. Under these conditions, the respective mass and energy yields were 53 wt% and 75% for millet straw and 49 wt% and 75% for sorghum straw. The O:C atomic ratio decreased to 0.3 in MS tor-chars and 0.2 in SS tor-chars resulting in higher heating values of 25 MJ kg(-1) and 27 MJ kg(-1), respectively. Under optimum conditions, the ash content increased by 107% to be approximately 7 wt% in MS tor-char, and by 118% to about 7 wt% in SS tor-char. These properties are promising for potential feedstocks in co-firing plants or gasification systems. (c) 2022 The Authors. Biofuels, Bioproducts and Biorefining published by Society of Industrial Chemistry and John Wiley & Sons Ltd.
英文关键词	sorghum straw millet straw torrefaction cellulose hemicellulose tor-char syngas
类型	Review
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000908021700001
WOS关键词	BIOMASS GASIFICATION ; FAST PYROLYSIS ; FUEL ; PRETREATMENT ; BEHAVIOR ; COAL ; MISCANTHUS ; SIMULATION ; PARAMETERS ; RELEASE
WOS类目	Biotechnology & Applied Microbiology ; Energy & Fuels
WOS研究方向	Biotechnology & Applied Microbiology ; Energy & Fuels
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395545
推荐引用方式 GB/T 7714	Ajikashile, Joshua Oluyinka,Alhnidi, Muhammad-Jamal,Bishir, Musa,et al. The influence of torrefaction temperature and reaction time on the properties of torrefied sun-dried millet and sorghum straws from the arid and semi-arid zones of western Africa[J],2023,17(3):751-767.
APA	Ajikashile, Joshua Oluyinka,Alhnidi, Muhammad-Jamal,Bishir, Musa,&Kruse, Andrea.(2023).The influence of torrefaction temperature and reaction time on the properties of torrefied sun-dried millet and sorghum straws from the arid and semi-arid zones of western Africa.BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR,17(3),751-767.
MLA	Ajikashile, Joshua Oluyinka,et al."The influence of torrefaction temperature and reaction time on the properties of torrefied sun-dried millet and sorghum straws from the arid and semi-arid zones of western Africa".BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR 17.3(2023):751-767.