Digitale Bibliotheek
Sluiten Bladeren door artikelen uit een tijdschrift
 
<< vorige    volgende >>
     Tijdschrift beschrijving
       Alle jaargangen van het bijbehorende tijdschrift
         Alle afleveringen van het bijbehorende jaargang
           Alle artikelen van de bijbehorende aflevering
                                       Details van artikel 6 van 7 gevonden artikelen
 
 
  Upgrading of Sugar Cane Bagasse by Thermal Processes 10. Catalytic Liquefaction in Aqueous Medium
 
 
Titel: Upgrading of Sugar Cane Bagasse by Thermal Processes 10. Catalytic Liquefaction in Aqueous Medium
Auteur: Lancas, Fernando M.
Ruggiero, Marcal A.
Donate, Paulo M.
Verschenen in: Energy sources. Part A, Recovery utilization and environmental effects
Paginering: Jaargang 21 (1999) nr. 4 pagina's 309-318
Jaar: 1999-03-01
Inhoud: This work presents the results of a study of a process of direct catalytic liquefaction of sugar cane bagasse, in aqueous medium, using different pH values. The experiments were conducted in the absence as well as in the presence of commercial catalysts. In the absence of catalyst, the results showed that the conversion of sugar cane bagasse into liquefied products is not influenced by the pH of the reaction mixture. An increase in the temperature augments the yield of liquefied products. The utilization of different commercial catalysts permits an increase in the yields of liquefied products up to 92.4 % , obtained with 10 % palladium on activated carbon powder as catalyst. The liquefied products were fractionated into eight different chemical classes by preparative liquid chromatography (PLC-8 method). In the absence of catalyst, high conversion yields into light-oils and resins (fractions F1 to F6)was observed only at pH 9. When the catalysts were used (at pH 9 and at 370 C), an important increase (from 29 to 78 %) of resins (fraction F6) was observed. Under this condition, the proportion of asphaltenes and asphaltols (fractions F7 and F8) decreases from 70 to 20 %.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details van artikel 6 van 7 gevonden artikelen
 
<< vorige    volgende >>
 
 Koninklijke Bibliotheek - Nationale Bibliotheek van Nederland