Steam-explosion pretreatment of wood: Effect of chip size, acid, moisture content and pressure drop

1986 ◽  
Vol 28 (6) ◽  
pp. 792-801 ◽  
Author(s):  
H. H. Brownell ◽  
E. K. C. Yu ◽  
J. N. Saddler
Keyword(s):  
Pressure Drop ◽  
Moisture Content ◽  
Steam Explosion ◽  
Steam Explosion Pretreatment ◽  
Chip Size

Effect of Chip Size on Steam Explosion Pretreatment of Softwood

2000 ◽  
Vol 84-86 (1-9) ◽  
pp. 97-110 ◽  
Author(s):  
I. Ballesteros ◽  
J. M. Oliva ◽  
A. A. Navarro ◽  
A. González ◽  
J. Carrasco ◽  
...  
Keyword(s):  
Steam Explosion ◽  
Steam Explosion Pretreatment ◽  
Chip Size

scholarly journals Impact of moisture content on instant catapult steam explosion pretreatment of sweet potato vine

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Li-Yang Liu ◽  
Jin-Cheng Qin ◽  
Kai Li ◽  
Muhammad Aamer Mehmood ◽  
Chen-Guang Liu
Keyword(s):  
Moisture Content ◽  
Sweet Potato ◽  
Steam Explosion ◽  
Potato Vine ◽  
Steam Explosion Pretreatment ◽  
Sweet Potato Vine

Effect of Chip Size on Steam Explosion Pretreatment of Softwood

2000 ◽  
pp. 97-110 ◽  
Author(s):  
I. Ballesteros ◽  
J. M. Oliva ◽  
A. A. Navarro ◽  
A. González ◽  
J. Carrasco ◽  
...  
Keyword(s):  
Steam Explosion ◽  
Steam Explosion Pretreatment ◽  
Chip Size

scholarly journals An extensive parameter study of hydrotropic extraction of steam-pretreated birch

2021 ◽  
Author(s):  
Johanna Olsson ◽  
Michael Persson ◽  
Mats Galbe ◽  
Ola Wallberg ◽  
Ann-Sofi Jönsson
Keyword(s):  
Residence Time ◽  
Steam Explosion ◽  
Room Temperature ◽  
Initial Step ◽  
Parameter Study ◽  
Hydrothermal Degradation ◽  
Steam Explosion Pretreatment ◽  
Lignin Extraction ◽  
Extraction Step ◽  
Lignin Recovery

AbstractEfficient fractionation of lignocellulosic biomass is an important step toward the replacement of fossil-based products. However, the utilisation of all of the components in biomass requires various fractionation techniques. One promising process configuration is to apply steam explosion for the recovery of hemicelluloses and a subsequent hydrotropic extraction step for the delignification of the remaining solids. In this work, the influence of residence time, temperature and biomass loading on lignin recovery from birch using sodium xylene sulphonate as a hydrotrope was investigated. Our results show that residence time, temperature and biomass loading correlate positively with lignin extraction, but the effects of these parameters were limited. Furthermore, when steam explosion was implemented as the initial step, hydrotropic extraction could be performed even at room temperature, yielding a lignin extraction of 50%. Also, hydrothermal degradation of the material was necessary for efficient delignification with sodium xylene sulphonate, regardless of whether it occurs during steam explosion pretreatment or is achieved at high temperatures during the hydrotropic extraction.

scholarly journals Effects of microwave irradiation on the moisture content of various wood chip fractions obtained from different tree species

2021 ◽  
Vol 67 (1) ◽  
Author(s):  
Monika Aniszewska ◽  
Krzysztof Słowiński ◽  
Ewa Tulska ◽  
Witold Zychowicz
Keyword(s):  
Moisture Content ◽  
Microwave Irradiation ◽  
Microwave Power ◽  
Irradiation Time ◽  
Initial Moisture Content ◽  
Radiant Energy ◽  
Wood Chip ◽  
Wood Chips ◽  
Chip Size ◽  
Drying Rates

AbstractThe paper proposes the use of microwave irradiation to lower the initial moisture content of wood chips. The study involved willow and fir chips fractionated by means of a sieve separator and unfractionated ash chips. The wood chips were exposed to a constant microwave power of 800 W for 30 s, 60 s, 120 s and 180 s. The chips were weighed before and after irradiation to measure loss of moisture. It was found that the decline in moisture content increased with wood chip size for a given irradiation time and microwave power. The initial moisture content of wood chips was not found to significantly affect loss of moisture as the drying rates of wood chips with higher and lower moisture content exposed to microwaves were not statistically different. The results showed that irradiation intensity increased with the time of exposure to microwaves and unit radiant energy per unit of evaporated moisture decreased with increasing wood chip size in the 3.15–31.50 mm range.

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