Catalytic deoxygenation of triglycerides to hydrocarbons over supported nickel catalysts

被引：151

作者：

Morgan, Tonya ^{[1
]}

Santillan-Jimenez, Eduardo ^{[1
]}

Harman-Ware, Anne E. ^{[1
]}

Ji, Yaying ^{[1
]}

Grubb, Daniel ^{[1
]}

Crocker, Mark ^{[1
]}

机构：

[1] Univ Kentucky, Ctr Appl Energy Res, Lexington, KY 40511 USA

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 189卷

关键词：

Triglyceride; Deoxygenation; Decarboxylation; Ni; Layered double hydroxide; Hydrotalcite; STEARIC-ACID; DIESEL FUEL; FATTY-ACIDS; DECARBOXYLATION; PHASE; NI; OXIDATION; PATHWAYS; METHANE; CO2;

D O I：

10.1016/j.cej.2012.02.027

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The deoxygenation of triolein and soybean oil under nitrogen atmosphere was investigated over Ni-Al, Ni-Mg-Al and Mg-Al layered double hydroxides, as well as 20wt.% Ni/Al2O3. Deoxygenation was found to proceed via removal of the carboxyl group in the fatty acid structure as CO2 and CO, while additional cracking of the fatty acid chains resulted in the formation of mainly liquid (C5-C17) hydrocarbons. In comparison with triolein, the greater unsaturation of soybean oil resulted in increased cracking, leading to the formation of lighter hydrocarbons and higher amounts of coke deposits. According to C-13 NMR measurements, one of the pathways for hydrocarbon formation involves a beta-hydrogen elimination in the triglyceride to produce a fatty acid, the decarboxylation of which yields a linear hydrocarbon. The formation of coke was consistently observed in these reactions and was found to limit catalyst activity. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：346 / 355

页数：10

共 46 条

[1] On the Mechanism of Catalytic Conversion of Fatty Acids into Hydrocarbons in the Presence of Palladium Catalysts on Alumina [J].

Berenblyum, A. S. ;

Podoplelova, T. A. ;

Shamsiev, R. S. ;

Katsman, E. A. ;

Danyushevsky, V. Ya .

PETROLEUM CHEMISTRY, 2011, 51 (05) :336-341

[2] Catalytic hydroconversion of tricaprylin and caprylic acid as model reaction for biofuel production from triglycerides [J].

Boda, Laszlo ;

Gyorgy Onyestyak ;

Solt, Hanna ;

Ferenc Lonyi ;

Valyon, Jozsef ;

Thernesz, Artrur .

APPLIED CATALYSIS A-GENERAL, 2010, 374 (1-2) :158-169

[3] HYDROTALCITE-TYPE ANIONIC CLAYS: PREPARATION, PROPERTIES AND APPLICATIONS [J].

Cavani, F. ;

Trifiro, F. ;

Vaccari, A. .

CATALYSIS TODAY, 1991, 11 (02) :173-301

[4] Direct conversion of triglycerides to olefins and paraffins over noble metal supported catalysts [J].

Chiappero, Martina ;

Do, Phuong Thi Mai ;

Crossley, Steven ;

Lobban, Lance L. ;

Resasco, Daniel E. .

FUEL, 2011, 90 (03) :1155-1165

[5] Renewable fuels via catalytic hydrodeoxygenation [J].

Choudhary, T. V. ;

Phillips, C. B. .

APPLIED CATALYSIS A-GENERAL, 2011, 397 (1-2) :1-12

[6] Structure and surface and catalytic properties of Mg-Al basic oxides [J].

Di Cosimo, JI ;

Diez, VK ;

Xu, M ;

Iglesia, E ;

Apesteguia, CR .

JOURNAL OF CATALYSIS, 1998, 178 (02) :499-510

[7] Catalytic Deoxygenation of Methyl-Octanoate and Methyl-Stearate on Pt/Al2O3 [J].

Do, Phuong T. ;

Chiappero, Martina ;

Lobban, Lance L. ;

Resasco, Daniel E. .

CATALYSIS LETTERS, 2009, 130 (1-2) :9-18

[8] Hydroprocessing of Bio-Oils and Oxygenates to Hydrocarbons. Understanding the Reaction Routes [J].

Donnis, Bjorn ;

Egeberg, Rasmus Gottschalck ;

Blom, Peder ;

Knudsen, Kim Gron .

TOPICS IN CATALYSIS, 2009, 52 (03) :229-240

[9] Enhanced metal dispersion and hydrodechlorination properties of a Ni/Al2O3 catalyst derived from layered double hydroxides [J].

Feng, Jun-Ting ;

Lin, Yan-Jun ;

Evans, David G. ;

Duan, Xue ;

Li, Dian-Qing .

JOURNAL OF CATALYSIS, 2009, 266 (02) :351-358

[10]

Gusmao J., 1989, Catalysis Today, V5, P533, DOI 10.1016/0920-5861(89)80017-3

← 1 2 3 4 5 →