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Titolo:
Comparison of stored and green wood raw materials
Autore:
Oman, M; Soderstam, G;
Indirizzi:
Stora Enso Res, S-65009 Karlstad, Sweden Stora Enso Res Karlstad Sweden S-65009 nso Res, S-65009 Karlstad, Sweden
Titolo Testata:
PAPERI JA PUU-PAPER AND TIMBER
fascicolo: 1, volume: 83, anno: 2001,
pagine: 50 - 57
SICI:
0031-1243(2001)83:1<50:COSAGW>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Keywords:
kraft pulping; softwood; green wood; storage; wood handling; economic analysis; barking;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Oman, M Stora Enso Res, Box 9090, S-65009 Karlstad, Sweden Stora Enso Res Box 9090 Karlstad Sweden S-65009 Karlstad, Sweden
Citazione:
M. Oman e G. Soderstam, "Comparison of stored and green wood raw materials", PAP PUU, 83(1), 2001, pp. 50-57

Abstract

Mill trials were performed in order to compare kraft pulping of summer stored and green softwood. Barking and chipping of stored pulpwood resulted inlower bark yield, higher wood loss, higher bark content of wood chips and slightly poorer chip size distribution in comparison with green wood. Chipsfrom stored pulpwood had considerably higher and more variable dry contentthan chips from green wood, which resulted in unstable process conditions in the continuous digester. The kappa-number variation was higher and the pulp viscosity was lower. This study also indicated that product quality wasnegatively influenced when pulping stored wood. Calculations showed that the economic drawback of pulping stored wood in comparison with green wood amounted to 262 SEK/t(90). The short trial periods did not allow evaluation of wood consumption levels and by-product yield. The comparison strongly indicates that pulpwood management from forest to the mill should focus on securing a fresh wood supply to the forest industry.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/01/20 alle ore 01:20:12