Behavior of nickel catalysts in supercritical water gasification of glucose: Influence of support

被引：54
作者：
Lu, Youjun [1 ]
Zhu, Yiming [1 ]
Li, Sha [1 ]
Zhang, Ximin [1 ]
Guo, Liejin [1 ]
机构：
[1] Xi An Jiao Tong Univ, SKLMFPE, Xian 710049, Shaanxi, Peoples R China
来源：
BIOMASS & BIOENERGY | 2014年 / 67卷
关键词：
Ni catalysts; Hydrogen production; Supercritical water gasification; Coke deposition; Support; PRESSURE AQUEOUS ENVIRONMENTS; HYDROGEN-PRODUCTION; BIOMASS GASIFICATION; HYDROTHERMAL GASIFICATION; MODEL COMPOUNDS; WASTE-WATER; CELLULOSE; LIGNIN; HYDROPYROLYSIS; TEMPERATURE;
D O I：
10.1016/j.biombioe.2014.04.038
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The catalytic performance of Ni-based supercritical water gasification (SCWG) catalysts may be influenced strongly by the nature of support. In this paper, Ni catalysts with the different supports (CeO2/Al2O3, La2O3/Al2O3, MgO/Al2O3, ZrO2/Al2O3) were prepared by two-step impregnation method. The fresh and used catalysts were characterized by X-ray diffraction patterns (XRD), scanning electron microscopy with an Energy Dispersive X-ray (SEM-EDX), Brunauer Emmett Teller (BET) specific surface area measurements, X-ray photoelectron spectroscopy (XPS) and Thermo-gravimetric analyses (TGA). The catalyst performance testing was conducted by SCWG of glucose at 673 K and 23.5 MPa with an autoclave reactor, to evaluate the influence of support on the hydrogen production. The results showed that H-2 yield for different supports decreased in order: CeO2/Al2O3 > La2O3/Al2O3 > MgO/Al2O3 > Al2O3 > ZrO2/Al2O3, and H-2 selectivity decreased in order: CeO2/Al2O3 > La2O3/Al2O3 > ZrO2/Al2O3 > Al2O3 > MgO/Al2O3. Ni catalysts were deactivated in SCWG reaction because of sintering and coke deposition. Compared with other supports, CeO2 can be used as the promoter of carbon removal from catalyst surfaces. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：125 / 136
页数：12
相关论文
共 60 条
[11]   CHEMICAL-PROCESSING IN HIGH-PRESSURE AQUEOUS ENVIRONMENTS .3. BATCH REACTOR PROCESS-DEVELOPMENT EXPERIMENTS FOR ORGANICS DESTRUCTION [J].
ELLIOTT, DC ;
SEALOCK, LJ ;
BAKER, EG .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1994, 33 (03) :558-565
[12]   CHEMICAL-PROCESSING IN HIGH-PRESSURE AQUEOUS ENVIRONMENTS .2. DEVELOPMENT OF CATALYSTS FOR GASIFICATION [J].
ELLIOTT, DC ;
SEALOCK, LJ ;
BAKER, EG .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1993, 32 (08) :1542-1548
[13]   Chemical processing in high-pressure aqueous environments. 6. Demonstration of catalytic gasification for chemical manufacturing wastewater cleanup in industrial plants [J].
Elliott, DC ;
Neuenschwander, GG ;
Phelps, MR ;
Hart, TR ;
Zacher, AH ;
Silva, LJ .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (03) :879-883
[14]  
Elliott DC, IND ENG CHEM RES
[15]   Catalytic hydrothermal gasification of biomass [J].
Elliott, Douglas C. .
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR, 2008, 2 (03) :254-265
[16]   Catalytic hydrothermal gasification of cellulose and glucose [J].
Fang, Zhen ;
Minowa, Tomoaki ;
Fang, Chun ;
Smith, Richard L., Jr. ;
Inomata, Hiroshi ;
Kozinski, Janusz A. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (03) :981-990
[17]   Hydrogen production from the gasification of lignin with nickel catalysts in supercritical water [J].
Furusawa, Takeshi ;
Sato, Takafumi ;
Sugito, Hirokazu ;
Miura, Yasutomo ;
Ishiyama, Yasuyoshi ;
Sato, Masahide ;
Itoh, Naotsugu ;
Suzuki, Noboru .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2007, 32 (06) :699-704
[18]   Hydrogen production by methanol reforming in supercritical water: Catalysis by in-situ-generated copper nanoparticles [J].
Gadhe, Jayant B. ;
Gupta, Ram B. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2007, 32 (13) :2374-2381
[19]   Hydrogen production from glucose used as a model compound of biomass gasified in supercritical water [J].
Hao, XH ;
Guo, LJ ;
Mao, X ;
Zhang, XM ;
Chen, XJ .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2003, 28 (01) :55-64
[20]  
Hemmati S, 2010, BIOTECHNIQUES FOR AIR POLLUTION CONTROL, P269
123456