Hydrogen-rich syngas production from chemical looping steam reforming of bio-oil model compound: Effect of bimetal on LaNi0.8M0.2O3 (M = Fe, Co, Cu, and Mn)

被引:19
作者
Liu, Chen long [1 ]
Chen, Dong [1 ]
Wang, Wenju [1 ,2 ]
机构
[1] Nanjing Univ Sci & Technol, Sch Energy & Power Engn, Nanjing 210094, Jiangsu, Peoples R China
[2] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Shanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
bio-oil; chemical looping steam reforming; DFT calculation; hydrogen-rich syngas; perovskite; GENERALIZED GRADIENT APPROXIMATION; ACETIC-ACID; LOW-TEMPERATURE; CATALYTIC PERFORMANCE; OXYGEN CARRIER; BIOMASS; NI; COMBUSTION; EXCHANGE; GASIFICATION;
D O I
10.1002/er.4581
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Chemical looping steam reforming (CLSR) of acetic acid as bio-oil model compound is a suitable way to produce hydrogen-rich syngas. The LaNiO3 and LaNi0.8M0.2O3 (M = Fe, Co, Mn, and Cu) perovskites were prepared via the sol-gel method. The perovskites were characterized by X-ray diffraction (XRD), thermogravimetry (TG), and test activity of hydrogen-rich syngas in a fixed bed. XRD and TG results showed that the coke generation on LaNi0.8Fe0.2O3 needs a lower decomposition temperature, and a stable structure was appeared after reaction. The activity order of hydrogen-rich syngas on five types of perovskite is LaNi0.8Fe0.2O3 > LaNi0.8Co0.2O3 > LaNiO3 > LaNi0.8Mn0.2O3 > LaNi0.8Cu0.2O3 at 650 degrees C, mole ratio of steam/carbon (2:1), and sample mixture flow (GHSV = 34 736 g of feed/(g catalyst h)). The CLSR of acetic acid with LaNi0.8Fe0.2O3 at GHSV = 43 992 g of feed/(g catalyst h) showed good stability. Correlated to experimental results, the adsorption energy of steam and acetic acid on five types of perovskite were calculated using density functional theory (DFT). The adsorption energy of steam (-0.61 eV) and acetic acid (-0.93 eV) of LaNi0.8Fe0.2O3 is maximum. This value of DFT calculation is well explained in the experimental results.
引用
收藏
页码:4534 / 4545
页数:12
相关论文
共 23 条
[21]   LDH-derived Ni-MgO-Al2O3 catalysts for hydrogen-rich syngas production via steam reforming of biomass tar model: Effect of catalyst synthesis methods [J].
Jayaprakash, Shanmukapriya ;
Dewangan, Nikita ;
Jangam, Ashok ;
Das, Sonali ;
Kawi, Sibudjing .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (35) :18338-18352
[22]   Co-production of hydrogen and carbon nanofibers from catalytic decomposition of methane over LaNi(1-x)Mx O3-α perovskite (where M = Co, Fe and X=0, 0.2, 0.5, 0.8, 1) [J].
Maneerung, Thawatchai ;
Hidajat, Kus ;
Kawi, Sibudjing .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2015, 40 (39) :13399-13411
[23]   Steam reforming of bio-alcohols over Ni-M (Cu, Co, Pt)/MCF-S (MgO, La2O3, CeO2) for renewable and selective hydrogen production: Synergistic effect of MCF silica and basic oxides on activity and stability profiles [J].
Shejale, Ashish D. ;
Yadav, Ganapati D. .
CATALYSIS TODAY, 2023, 423