Influences of the Chemical State of Alkaline Compounds and the Nature of Alkali Metal on Wood Pyrolysis (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Influences of the Chemical State of Alkaline Compounds and the Nature of Alkali Metal on Wood Pyrolysis (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Alternative label

• Di Blasi C., Galgano A. , Branca C (2009)
  Influences of the Chemical State of Alkaline Compounds and the Nature of Alkali Metal on Wood Pyrolysis
  in Industrial & engineering chemistry research
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Di Blasi C., Galgano A. , Branca C (literal)

Pagina inizio

• 3359 (literal)

Pagina fine

• 3369 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 48 (literal)

Rivista

• Industrial & engineering chemistry research (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Dipartimento di Ingegneria Chimica, UniVersita` degli Studi di Napoli \"Federico II\", P.le V. Tecchio, 80125 Napoli, Italy Istituto di Ricerche sulla Combustione, C.N.R., P.le V. Tecchio, 80125 Napoli, Italy (literal)

Titolo

• Influences of the Chemical State of Alkaline Compounds and the Nature of Alkali Metal on Wood Pyrolysis (literal)

Abstract

• The pyrolysis of a packed bed of fir wood particles, after impregnation with KOH, is investigated. For a heating temperature of 800 K, maximum variations in the pyrolysis characteristics are observed for KOH concentrations in wood below 1%. Decomposition temperatures become lower (35-70 K), and conversion times are rapidly more than halved. Also, the char, water, and gas yields increase (factors of 1.4, 1.6, and 1.7, respectively) at the expense of liquid-phase organic products. Levoglucosan presents a very steep decay, whereas the diminution in hydroxyacetaldehyde and acid acetic is much slower, and a wide zone of approximately constant values appears for hydroxypropanone. However, small quantities of KOH in wood (about 0.2-0.6%) are apt to increase the yields of furfuryl alcohol up to a factor 15 and some carbohydrates (3-ethyl-2-hydroxy- 2-cyclopentenone, 3-methyl-2-cyclopentenone, 1-hydroxy-2-butanone) and phenols (phenol, cresols, hydroquinone, guaiacol, isoeugenol-trans, isoeugenol-cis, 4-acetonguaiacol, 4-ethylguaiacol) up to factors of 2-6. Higher KOH concentrations cause a further increase in the yields of char and CO2 associated with a decay to very small yields of all of the organic compounds. Finally, increasing the heating temperature from 600 to 900 K (KOH concentration in wood of about 0.6%) essentially favors devolatilization and cracking of vapor-phase organic products with conversion times roughly reduced by a factor of 6. (literal)

Prodotto di

• Istituto di ricerche sulla combustione (IRC) (Istituto)
• Sviluppo di processi e tecnologie di trasformazione di fonti rinnovabili per la produzione di energia e materiali (ET.P03.002.002) (Modulo)

Autore CNR

• CARMEN BRANCA (Unità di personale interno)
• ANTONIO GALGANO (Persona)

Incoming links:

Prodotto

• Istituto di ricerche sulla combustione (IRC) (Istituto)
• Sviluppo di processi e tecnologie di trasformazione di fonti rinnovabili per la produzione di energia e materiali (ET.P03.002.002) (Modulo)

Autore CNR di

• ANTONIO GALGANO (Persona)
• CARMEN BRANCA (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Industrial & engineering chemistry research (Rivista)