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Highly stable gasified straw slag as a novel solid base catalyst for the effective synthesis of biodiesel: Characteristics and performance
Wang, Jiayan1,2,3,6; Xing, Shiyou1,3,5,6; Huang, Yanqin1,3; Fan, Pei1,3,5,6; Fu, Junying1,3,6; Yang, Gaixiu1,3,6; Yang, Lingmei1,3,6; Lv, Pengmei1,3,4,6
2017-03-15
Source PublicationAPPLIED ENERGY
Volume190Pages:703-712
AbstractA novel solid base catalyst derived from gasified straw slag for producing biodiesel was prepared by simple pulverization and sieving. This catalyst exhibited high stability, low leaching of the catalytic species, and good catalytic activity, caused by high -temperature melting in the biomass gasifier. SiO2, CaO, K2O, MgO, FeO, and A1(2)O(3) were the common constituents (calculated as oxides) as per XRF analysis and EA. XRD and TEM-EDS analysis indicated that the catalyst comprises three crystallites: quartz, leucite, and dkermanite. The catalyst was strongly basic with a basic site concentration of 0.3974 mniol.g(-1), including strongly basic low-coordination oxygen anions, moderately basic OH groups, and metal-oxygen pairs, as identified by CO2-TPD and IR. TGA results indicated that the catalyst is thermally stable up to 400 degrees C, which is greater than the typical reaction temperature. BET analysis results indicated that the slag exhibits a broad pore distribution with pore diameters of 5-15 and 45-75 nm. The catalyst exhibited high catalytic activity and stability, exhibiting a fatty acid methyl ester (FAME) conversion of 95% for transesterification conducted at 200 degrees C for 8 h with a catalyst dose of 20% and a methanol-oil molar ratio of 12:1. The FAME conversion remained greater than 85% even after reusing the catalyst for 33 reactions without any appreciable loss of catalytic activity. Small amounts of K and Mg (<10 ppm) leached into the product from the catalyst. These results indicated that the gasified straw slag catalyst demonstrates promise for producing biodiesel. (C) 2017 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordGasified Straw Slag Solid Base Catalyst Biodiesel Transesterification
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.apenergy.2017.01.004
WOS Subject ExtendedEnergy & Fuels ; Engineering
WOS KeywordSOYBEAN OIL ; HETEROGENEOUS CATALYSTS ; HIGH-TEMPERATURE ; TRANSESTERIFICATION ; WASTE ; SHELL ; ACID ; CAO ; INCOMMENSURATE ; CA2MGSI2O7
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(21576260) ; Natural Science Foundation of Guangdong Province(2016A030308004 ; Special Funds of Applied Science and Technology Research of Guangdong Province(2015B020241002) ; 2015A030313720)
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000395959100058
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/14087
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China
3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
4.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450002, Henan Province, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Guangdong Key Lab New & Renewable Energy Res & D, Guangzhou 510640, Guangdong, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Jiayan,Xing, Shiyou,Huang, Yanqin,et al. Highly stable gasified straw slag as a novel solid base catalyst for the effective synthesis of biodiesel: Characteristics and performance[J]. APPLIED ENERGY,2017,190:703-712.
APA Wang, Jiayan.,Xing, Shiyou.,Huang, Yanqin.,Fan, Pei.,Fu, Junying.,...&Lv, Pengmei.(2017).Highly stable gasified straw slag as a novel solid base catalyst for the effective synthesis of biodiesel: Characteristics and performance.APPLIED ENERGY,190,703-712.
MLA Wang, Jiayan,et al."Highly stable gasified straw slag as a novel solid base catalyst for the effective synthesis of biodiesel: Characteristics and performance".APPLIED ENERGY 190(2017):703-712.
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