Hydrodeoxygenation of Oxidized and Hydrotreated Bio-oils to Hydrocarbons in Fixed-bed Continuous Reactor

被引：0

作者：

Luo, Yan ^{[1
]}

Guda, Vamshi Krishna ^{[2
]}

Steele, Philip H. ^{[1
]}

Wan, Hui ^{[1
]}

机构：

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

[2] Mississippi State Univ, Dept Chem Engn, Mississippi State, MS 39762 USA

来源：

BIORESOURCES | 2016年 / 11卷 / 02期

关键词：

Oxidation; Hydrotreating; Hydrodeoxygenation; Sulfided CoMo/gamma-Al2O3 catalyst; Fixed-bed continuous reactor; FAST-PYROLYSIS OIL; LIGNOCELLULOSIC BIOMASS; CATALYTIC HYDRODEOXYGENATION; MODEL; NI; PD;

D O I：

10.15376/biores.11.2.4415-4431

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The physical and chemical properties of raw bio-oil, two oxidized bio-oils, and hydrotreated bio-oil were compared before and after catalytic hydrodeoxygenation using sulfided CoMo/gamma-Al2O3 catalyst. Following continuous hydrodeoxygenation, the organic liquid products from treated bio-oils and raw bio-oil were compared for higher heating value, oxygen content, water content, and viscosity. In addition, Fourier transform infrared spectroscopy and gas chromatography/mass spectrometry were employed to identify functional groups and chemical species, respectively. Fresh and spent catalysts were characterized by nitrogen adsorption-desorption for surface area and pore properties. The degree of coking of the spent catalysts was analyzed by thermogravimetric analysis. Hydrodeoxygenation of hydrotreated bio-oil (HB) gave the longest reaction time on stream of 780 min, the least coking amount of 20 wt%, and the highest hydrocarbon selectivity of 70% up to 720 min of reaction time on stream. Moreover, organic liquid products from HB showed relatively stable properties such as low oxygen content, water content, and viscosity over a longer period of reaction time on stream.

引用

页码：4415 / 4431

页数：17

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