Catalytic upgrading of bio-oil produced from hydrothermal liquefaction of Nannochloropsis sp.

被引：63

作者：

Shakya, Rajdeep ^{[1
]}

Adhikari, Sushil ^{[1
]}

Mahadevan, Ravishankar ^{[1
]}

Hassan, El Barbary ^{[2
]}

Dempster, Thomas A. ^{[3
]}

机构：

[1] Auburn Univ, Dept Biosyst Engn, Auburn, AL 36849 USA

[2] Mississippi State Univ, Dept Sustainable Bioprod, Mississippi State, MS 39762 USA

[3] Arizona State Univ, Arizona Ctr Algae Technol & Innovat, Tempe, AZ 85212 USA

来源：

BIORESOURCE TECHNOLOGY | 2018年 / 252卷

基金：

美国国家科学基金会;

关键词：

Algae; Hydrothermal liquefaction; Bio-oil; Catalytic upgrading; Hydrodenitrogenation; SUPERCRITICAL WATER; BIOCRUDE OIL; ALGAE; MICROALGAE; HYDRODEOXYGENATION; HYDRODENITROGENATION; TEMPERATURE; FEEDSTOCKS; PYROLYSIS; HZSM-5;

D O I：

10.1016/j.biortech.2017.12.067

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Upgrading of bio-oil obtained from hydrothermal liquefaction (HTL) of algae is necessary for it to be used as a fuel. In this study, bio-oil obtained from HTL of Nannochloropsis sp. was upgraded using five different catalysts (Ni/C, ZSM-5, Ni/ZSM-5, Ru/C and Pt/C) at 300 degrees C and 350 degrees C. The upgraded bio-oil yields were higher at 300 degrees C; however, higher quality upgraded bio-oils were obtained at 350 degrees C. Ni/C gave the maximum upgraded bio-oil yield (61 wt%) at 350 degrees C. However, noble metal catalysts (Ru/C and Pt/C) gave the better upgraded bio-oils in terms of acidity, heating values, and nitrogen values. The higher heating value of the upgraded bio-oils ranged from 40 to 44 MJ/kg, and the nitrogen content decreased from 5.37 to 1.29 wt%. Most of the upgraded bio-oils (35-40 wt%) were in the diesel range. The major components present in the gaseous products were CH4, CO, CO2 and lower alkanes.

引用

页码：28 / 36

页数：9

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