干旱区生态环境知识资源中心(Arid): Effect of supercritical water temperature and Pd/C catalyst on upgrading fuel characteristics of gumweed-derived solvent-extracted biocrude

Arid

DOI	10.1007/s13399-020-01050-z
	Effect of supercritical water temperature and Pd/C catalyst on upgrading fuel characteristics of gumweed-derived solvent-extracted biocrude
	Saha, Nepu; Saba, Akbar; McGaughy, Kyle; Reza, M. Toufiq
通讯作者	Reza, MT
来源期刊	BIOMASS CONVERSION AND BIOREFINERY
ISSN	2190-6815
EISSN	2190-6823
出版年	2020-10
英文摘要	Grindelia squarrosa, known as gumweed, is a shrub that grows in arid lands in North America with up to 8% biocrude (or bio-oil) content that can be extracted by using a common solvent extraction method. This solvent-extracted biocrude (SEB) has nearly 24 wt% oxygen, which is not suitable for direct combustion as a bio-oil or biodiesel. In this study, supercritical water (SCW) upgrading is used to reduce the oxygen of the SEB and increase the fuel value by creating lighter oil fractions. Treatment for 30 min reduces the oxygen content from 24.1 +/- 1.6 (for raw SEB) to 7.2 +/- 0.7%, 7.1 +/- 0.4%, and 6.9 +/- 0.6% at 380, 400, and 420 degrees C respectively. The addition of palladium on carbon (Pd/C) catalyst at 400 degrees C further reduces the oxygen content to 4.8 +/- 0.7%. This removal in oxygen content is shown in the reduction of carboxylic acid compounds in the oils. Without having to use hydrogen, such as with the traditional hydrodeoxygenation process, the SCW upgrading has rather high energy yields for the oils which all have higher heating values between 41.0 and 42.8 MJ kg(-1)(with no significant effect of temperature or catalyst). Treatment at 400 degrees C had the highest energy yield at 76.4 +/- 1.7%, and treatment with the Pd/C catalyst at 400 degrees C had the lowest at 61.4 +/- 2.8%. These energy yields, higher heating values, and low oxygen contents show that SCW can effectively be used to convert gumweed-derived SEB into a valuable bio-oil.
英文关键词	Grindelia squarrosa Solvent-extracted biocrude Biodiesel Supercritical fluid Pd C catalyst
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000578234300002
WOS关键词	HYDROTHERMAL LIQUEFACTION ; ALGAL OIL ; BIO-OIL ; BIODIESEL ; HYDRODEOXYGENATION ; PYROLYSIS ; BIOFUEL
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS研究方向	Energy & Fuels ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328355
作者单位	[Saha, Nepu; McGaughy, Kyle; Reza, M. Toufiq] Florida Inst Technol, Dept Biomed & Chem Engn & Sci, Melbourne, FL 32905 USA; [Saba, Akbar] Ohio Univ, Dept Mech Engn, Athens, OH 45701 USA
推荐引用方式 GB/T 7714	Saha, Nepu,Saba, Akbar,McGaughy, Kyle,et al. Effect of supercritical water temperature and Pd/C catalyst on upgrading fuel characteristics of gumweed-derived solvent-extracted biocrude[J],2020.
APA	Saha, Nepu,Saba, Akbar,McGaughy, Kyle,&Reza, M. Toufiq.(2020).Effect of supercritical water temperature and Pd/C catalyst on upgrading fuel characteristics of gumweed-derived solvent-extracted biocrude.BIOMASS CONVERSION AND BIOREFINERY.
MLA	Saha, Nepu,et al."Effect of supercritical water temperature and Pd/C catalyst on upgrading fuel characteristics of gumweed-derived solvent-extracted biocrude".BIOMASS CONVERSION AND BIOREFINERY (2020).