Solar pyrolysis of cotton stalk in molten salt for bio-fuel production - Archive ouverte HAL Access content directly
Journal Articles Energy Year : 2019

Solar pyrolysis of cotton stalk in molten salt for bio-fuel production

(1) , (2, 1) , (2) , (1) , (1) , (1) , (1) , (3) , (1)
1
2
3

Abstract

Solar pyrolysis of cotton stalk was carried out in a molten salt reactor heated by 4 kW solar simulator. The effects of pyrolysis temperature and mass ratio of molten salt to biomass on pyrolysis products properties were investigated. The use of molten salt as pyrolysis media increased gas yield. At 850 °C, the gas yield (mainly of CO and H2) continued to rise from 41.35 wt% to 82.57 wt% when mass ratio of molten salt to cotton stalk increased from 0 to 10. Pyrolysis in molten salt significantly decreased bio-oil acids and phenols, while increased aromatics among pyrolysis temperature range of 450–850 °C. There was positive correlation between the increased content of aromatics and mass ratio of molten salt to cotton stalk (from 0.5 to 10). The bio-char carbon content showed a general decreasing trend while oxygen, BET surface area and pore volume increased with using molten salt as pyrolysis media. Bio-char obtained from CS1MS5 pyrolysis at 850 °C had the highest BET surface area of 972.57 m2/g and the biggest total pore volume of 0.6203 cm3/g. High quality pyrolysis products with more uniform chemistry suggest catalytic reactions occur inside the solar reactor due to the intermediates degradation with molten salt.
Fichier principal
Vignette du fichier
solar-pyrolysis-of-cotton-stalk.pdf (554.77 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-02134112 , version 1 (22-05-2019)

Identifiers

Cite

Yingpu Xie, Kuo Zeng, Gilles Flamant, Haiping Yang, Nian Liu, et al.. Solar pyrolysis of cotton stalk in molten salt for bio-fuel production: Review. Energy, 2019, 179, pp.1124-1132. ⟨10.1016/j.energy.2019.05.055⟩. ⟨hal-02134112⟩
79 View
274 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More