Influence of temperature on biomass pyrolysis in a conical spouted bed reactor

Amutio, Maider; López, Gartzen; Artetxe, Maite; Elordi, Gorka; Olazar, Martı́n; Bilbao, Javier

doi:10.1016/j.resconrec.2011.04.002

Cited by 300 publications

(191 citation statements)

References 76 publications

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“…The pulverized bio-char had higher fixed carbon content (88.89% at 700 °C).The fine particle size let the heat transfer much easily, thus making the pyrolysis of pulverized bio-char more complete. In other studies (DeSisto et al 2010;Amutio et al 2012;Ronsse et al 2013), the fixed carbon content showed the same trend with slightly different values. These analyses showed that pyrolysis is an impurity removal process.…”

Section: Proximate Analysismentioning

confidence: 54%

“…Other species of bio-char show the same trend (Ronsse et al 2013;Guo and Bi 2015), but different kinds of biomass are quite different in ash content. The ash content of pulverized bio-char was much lower than that in the molded form, which is similar to pulverized sawdust bio-char (DeSisto et al 2010;Amutio et al 2012;Ronsse et al 2013). In briquette process, the volatiles in lignin and hemicelluloses would become slightly reduced.…”

Section: Proximate Analysismentioning

confidence: 75%

“…Compared with other bio-chars (DeSisto et al 2010;Amutio et al 2012), the surface area of molded bio-char was higher, which could be due to molded biomass' high volatile content, low ash content (Table 1), and organized structure. …”

Section: Bet Surface Areasmentioning

confidence: 93%

“…Bio-char has a lower N and S contents and higher HHV than most solid fuels (Amutio et al 2012). Considering the CO2 emission and air pollution problems (SOx, NOx) of traditional solid fuels, bio-char has the potential to change the present energy structure.…”

Section: Ultimate Analysismentioning

confidence: 99%

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Effects of Temperature and Heating Rate on the Characteristics of Molded Bio-char

Li¹,

Liu²,

Wang³

et al. 2016

BioResources

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A slow pyrolysis of pinewood was investigated in this paper. Through the briquette process, the pinewood sawdust becomes molded biomass. The molded bio-char was produced from molded biomass with different pyrolysis factors, and the bio-char's heating value, char yield rates, and physicochemical and morphological properties were investigated. Molded bio-char's characteristics depended principally on pyrolysis factors. At low temperature (400 °C), the char yield rate was positively correlated to the heating rate. But at higher temperatures (500 to 700 °C), the char yield rates decreased as heating rates increased. As pyrolysis temperature increased from 400 to 700 °C, the following increased in molded bio-char: fixed-carbon content, percentage carbon, heating value, ash content, as well as surface areas. And its pore structure, graphite degree, and polymerization degree achieved a higher level. Compared with pulverized bio-char, the molded bio-char had a higher char yield rate, ash content, graphite degree, and structure ordering. The molded bio-char obtained from a low temperature (400 °C) and high heating rate (15 °C/min) can be used as a reducing agent, the molded bio-char from 600 °C is recommend as an activated carbon precursor, and the molded bio-chars from low temperature (400 °C) have a higher efficiency as fuel.

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Section: Proximate Analysismentioning

confidence: 54%

Section: Proximate Analysismentioning

confidence: 75%

Section: Bet Surface Areasmentioning

confidence: 93%

Section: Ultimate Analysismentioning

confidence: 99%

See 2 more Smart Citations

Effects of Temperature and Heating Rate on the Characteristics of Molded Bio-char

Li¹,

Liu²,

Wang³

et al. 2016

BioResources

View full text Add to dashboard Cite

show abstract

“…In addition, different temperature ranges and pyrolysis conditions have been studied. For example, Amutio et al (2012) tested pinewood sawdust fl ash pyrolysis (con-tinuous mode) in a pilot plant with a conical spouted bed reactor in the narrow range from 400 °C to 600 °C. Martinez et al (2014) tested co-pyrolysis of biomass with waste tires from 150 °C to 700 °C.…”

Section: Uvodmentioning

confidence: 99%