Bio-oil production from biomass pyrolysis in molten salt.
- Author:
Dengxiang JI
1
;
Tengyue CAI
;
Ning AI
;
Fengwen YU
;
Hongtao JIANG
;
Jianbing JI
Author Information
1. Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China.
- Publication Type:Journal Article
- MeSH:
Biofuels;
analysis;
Bioreactors;
microbiology;
Catalysis;
Chlorides;
chemistry;
Lanthanum;
chemistry;
Lipids;
biosynthesis;
Oryza;
metabolism;
Plant Stems;
metabolism;
Potassium Chloride;
chemistry;
Salts;
chemistry;
Zinc Compounds;
chemistry
- From:
Chinese Journal of Biotechnology
2011;27(3):475-481
- CountryChina
- Language:Chinese
-
Abstract:
In order to investigate the effects of pyrolysis conditions on bio-oil production from biomass in molten salt, experiments of biomass pyrolysis were carried out in a self-designed reactor in which the molten salt ZnCl2-KCl (with mole ratio 7/6) was selected as heat carrier, catalyst and dispersion agent. The effects of metal salt added into ZnCl2-KCl and biomass material on biomass pyrolysis were discussed, and the main compositions of bio-oil were determined by GC-MS. Metal salt added into molten salt could affect pyrolysis production yields remarkably. Lanthanon salt could enhance bio-oil yield and decrease water content in bio-oil, when mole fraction of 5.0% LaCl3 was added, bio-oil yield could reach up to 32.0%, and water content of bio-oil could reduce to 61.5%. The bio-oil and char yields were higher when rice straw was pyrolysed, while gas yield was higher when rice husk was used. Metal salts showed great selectivity on compositions of bio-oil. LiCl and FeCl2 promoted biomass to pyrolyse into smaller molecular weight compounds. CrCl3, CaCl2 and LaCl3 could restrain second pyrolysis of bio-oil. The research provided a scientific reference for production of bio-oil from biomass pyrolysis in molten salt.
