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National Technical University of Athens (NTUA)

ΜΕΛΕΤΗ ΤΟΥ ΜΗΧΑΝΙΣΜΟΥ ΠΡΟΚΑΤΕΡΓΑΣΙΑΣ ΓΙΑ ΤΗΝ ΜΕΤΑΤΡΟΠΗ ΤΗΣ ΒΙΟΜΑΖΑΣ ΣΕ ΚΑΥΣΙΜΑ ΚΑΙ ΧΗΜΙΚΑ: ΕΠΙΔΡΑΣΗ ΣΤΗ ΣΤΕΡΕΑ ΦΑΣΗ

Abstract

dc:description

THE EFFECTS OF PHYSICAL AND CHEMICAL PRETREATMENTS ON THE PARTICLE SIZE, SPECIFIC SURFACE AREA, CRYSTALLINITY INDEX, CHEMICAL COMPOSITION, DENSITY OF WHEAT STRAW IS EXAMINED. THE PHYSICAL PRETREATMENTS STUDIED WERE HAMMER - AND BALL-MILLING. THE CHEMICAL PRETREATMENTS UTILIZED WERE DELIGNIFICATIONS WITH AQUEOUS ALKALINE SOLUTIONS (NAOH, KOH, NA2CO3) AND ALCOHOL-WATER MIXTURES (METHANOL, ETHANOL, ISOPROPANOL, N-BUTANOL). THE EFFECT OF PRETREATMENTS ON THERMOCHEMICAL CONVERSION TO CHARCOAL, ON ENZYMIC HYDROLYSIS WITH ASPERGILLUS NIGER, TRICHODERMA VIVIDE AND FUSARIUM OXYSPORUM CELLULASES AND ON BIOETHANOL PRODUCTION WITH F . OXYSPORUM CELLULASES AND ON BIOETHANOL PRODUCTION WITH F. OXYSPORUM WAS EVALUATED D.CONVERSION YIELDS ARE INVERSE LINEAR FUNCTIONS OF PARTICLE SIZE AND LINEAR FUNCTION OF DEGREE OF DELIGNIFICATION. SECOND ORDER CORRELATIONS WITH RESPECT TO CRYSTALLINITY INDEX AND LIGNIN CONTENT OF CONVERSION PARAMETERS ARE PROPOSED.

Degree

thesis:*
Grantor dc:publisher
National Technical University of Athens (NTUA)
Year dc:date
1990

Author and committee

dc:creator, dc:contributor.*
Authors dc:creator
  • Koullas, Dimitrios
  • Κουλλάς, Δημήτριος

Subjects

dc:subject × 23

Rights

Language dc:language
gre

Identifiers

dc:identifier.*
Identifier
10.12681/eadd/1422
OAI identifier oai:identifier
oai:10442/1422

Chain of custody

source
Harvested from
Greek National Archive of PhD Theses
Base URL
phdtheses.ekt.gr/eadd_oai/request
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Koullas, Dimitrios; Κουλλάς, Δημήτριος. ΜΕΛΕΤΗ ΤΟΥ ΜΗΧΑΝΙΣΜΟΥ ΠΡΟΚΑΤΕΡΓΑΣΙΑΣ ΓΙΑ ΤΗΝ ΜΕΤΑΤΡΟΠΗ ΤΗΣ ΒΙΟΜΑΖΑΣ ΣΕ ΚΑΥΣΙΜΑ ΚΑΙ ΧΗΜΙΚΑ: ΕΠΙΔΡΑΣΗ ΣΤΗ ΣΤΕΡΕΑ ΦΑΣΗ. National Technical University of Athens (NTUA), 1990. http://hdl.handle.net/10442/hedi/1422