Catalytic upgrading of bio-products derived from pyrolysis of red macroalgae Gracilaria gracilis with a promising novel micro/mesoporous catalyst.
Bioresour Technol
; 243: 1-8, 2017 Nov.
Article
in En
| MEDLINE
| ID: mdl-28651129
Conversion of Gracilaria gracilis (G. gracilis) into bio-products was carried out via pyrolysis at different temperatures to determine its potential for phenol-rich bio-oil. Co-Mo supported on zeolites (HZSM-5), mesoporous (HMS) catalysts and their composites (ZH) were investigated and compared to each other on catalytic pyrolysis processes. In non-catalytic tests, the maximum weight percentage of bio-oil was 42wt% at 500°C and had the maximum amount of phenol (6.28wt%). in the catalytic tests by ZH composites; the addition of zeolite content in the structure of composites significantly decreased total concentrations of acetic acid and formic acid from 9.56 to 8.12wt% and slightly decreased phenol and furfural concentrations from 6.65 and 6.98 to 5.88 and 5.49wt%, respectively. Furthermore, the best selectivity for hydrogen yield (6.08mmol/g macroalgae) and lowest amount of acetic acid (5.4wt%) was observed for CoMo/ZH-20 catalyst, that is synthesized by 20wt% of zeolite.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Gracilaria
/
Biofuels
Language:
En
Journal:
Bioresour Technol
Journal subject:
ENGENHARIA BIOMEDICA
Year:
2017
Document type:
Article
Country of publication:
United kingdom