Upgrading Prosopis juliflora to biofuels via a two-step pyrolysis - Catalytic hydrodeoxygenation approach

被引：28
作者：
Mukundan, Swathi [1 ]
Sriganesh, Gandham [1 ]
Kumar, Pramod [1 ]
机构：
[1] Hindustan Petr Corp Ltd, Fluidized Catalyt Cracking Div, Green R&D Ctr, KIADB Ind Area, Devanagonthi 560067, Bengaluru, India
来源：
FUEL | 2020年 / 267卷 / 267期
关键词：
Prosopis juliflora; Biomass conversion; Pyrolysis; Bio-oil; Hydrodeoxygenation; Biofuels; BIO-OIL; ACTIVATED CARBON; GUAIACOL HYDRODEOXYGENATION; PHENOLIC-COMPOUNDS; LIQUID ALKANES; AQUEOUS-PHASE; LIGNIN; MODEL; WATER; SUPPORT;
D O I：
10.1016/j.fuel.2020.117320
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Hydrodeoxygenation (HDO) upgrades prosopis juliflora biomass to liquid fuels. We pyrolysed prosopis juliflora to crude bio-oil with 55% oxygen and 10% bound water. NbMo/C catalytically hydrodeoxygenated bio-oil to upgraded oil, light oil, gas, and biochar. After 1 h at 300 degrees C and a catalyst/oil ratio of 0.05, the upgraded bio-oil yield reached 42%. Oxygen and moisture content dropped to 19% and 0.1%. The latter two properties were independent of temperature between 275 degrees C and 325 degrees C while yield was optimal at 300 degrees C. The upgraded oil fuel properties - viscosity (3.2 mm(2)/s at 40 degrees C), density (0.98 g/cc at 15 degrees C), HHV (30 MJ/kg), and stability at room temperature were improved after HDO. A GC-MS detected monomers (39% yield), one-third which were oxygen-free. The oil yield dropped 5% after 5 cycles. Coke contributed most to deactivation but air combusted it at 380 degrees C. NbMo/C is an efficient catalyst to upgrade bio-oil to bio-fuels.
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页数：9
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