Deoxygenation of microalgal oil into hydrocarbon with precious metal catalysts: Optimization of reaction conditions and supports

被引：63

作者：

Na, Jeong-Geol ^{[1
]}

Yi, Bo Eun ^{[1
,2
]}

Han, Jun Kyu ^{[1
]}

Oh, You-Kwan ^{[1
]}

Park, Jong-Ho ^{[1
]}

Jung, Tae Sung ^{[1
]}

Han, Sang Sup ^{[1
]}

Yoon, Hyung Chul ^{[1
]}

Kim, Jong-Nam ^{[1
]}

Lee, Hyunjoo ^{[2
]}

Ko, Chang Hyun ^{[3
]}

机构：

[1] Korea Inst Energy Res, Clean Fuel Res Ctr, Taejon 305343, South Korea

[2] Yonsei Univ, Dept Chem & Biomol Engn, Seoul 120749, South Korea

[3] Chonnam Natl Univ, Sch Appl Chem Engn, Gwangiu 500767, South Korea

来源：

ENERGY | 2012年 / 47卷 / 01期

关键词：

Deoxygenation; Decarboxylation; Platinum; Oleic acid; Microalgae; Pyrolysis oil; DIESEL FUEL; STEARIC-ACID; DECARBOXYLATION; BIODIESEL;

D O I：

10.1016/j.energy.2012.07.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Deoxygenation of microalgal oil obtained by pyrolysis of microalgae was carried out for the production of hydrocarbon fuel from biomass by metal supported catalyst. Oleic acid was used as a model reactant to select an optimized catalyst. Effects of support, metal species, and metal loading on catalytic performance were investigated. Activated carbon showed better performance than silica as a support. Considering various factors in model reaction, such as metal loading, reaction temperature, activity for deoxygenation, and selectivity for decarboxylation, 5 wt% platinum supported on activated carbon (5 wt % Pt/C) was selected as an optimized catalyst. Based on these results, deoxygenation of the pyrolysis oil from Chlorella sp. KR-1 was conducted at 623 and 673 K over this selected catalyst. The product after catalytic deoxygenation was mainly composed of pure hydrocarbons, and its oxygen content was below 2.0%. The fraction in the product of which the boiling point was less than 623 K was about 90%. These properties could allow this upgraded oil to be used for transportation fuel. However, the degree of oxygen removal with microalgal pyrolysis oil was lower than that with oleic acid, implying that impurities in the pyrolysis oil may inhibit the deoxygenation reaction. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：25 / 30

页数：6

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