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Jurnal Penelitian Hasil Hutan
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Search results for , issue " Vol 13, No 1 (1995): Jurnal Penelitian Hasil Hutan" : 2 Documents clear
PEMBUATAN ARANG KAYU KARET (Hevea brasilliensis) PADA TUNGKU KUBAH MODEL S-93 Nurhayati, Tjutju
Jurnal Penelitian Hasil Hutan Vol 13, No 1 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4390.068 KB) | DOI: 10.20886/jphh.1995.13.1.37-44

Abstract

Dome kiln of S-93 model with 1.40 m3 capacity was built for charcoal production of rubber wood (Hevea brasilliensis). Two clones of rubber wood used as raw materials were AVROS 2037 and GT-Twhich were 15 and 25 years old, respectively.Charcoal yield, conversion efficiency from wood 10 charcoal, rate of production and quality between AVROS and GT-T were not significant. the percentage of yield was 26.9 % , efficiency was 39.2 % and rate of production was 1.6 kg/hour. the quality of charcoal showed that volatile melter content was 17.43 %, fixed carbon 78.64 %, ash content 3.92 % and catoriffic value 6582 kcal/kg.
ANALISIS KIMIA DAN DESTILASI KERING KAYU KARET Komarayati, Sri; Setiawan, Dadang; Nurhayati, Tjutju
Jurnal Penelitian Hasil Hutan Vol 13, No 1 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3900.923 KB) | DOI: 10.20886/jphh.1995.13.1.1-8

Abstract

This paper  deals with chemical  and charcoal properties  of rubberwood.  The analysis of chemical  propertis comprises of  the determination   of cellulose, holocellulose,   lignin, pentosan, moisture  content,    ash  content,  silica  content,  solubility  in  cold  water,    hot  water,   sodium hydroxide  1  percent  and ethanol-benzene    (1 : 2). The  analysis of charcoal property comprises of charcoal,  tar,  pyroligneous  liquor,   calorific value,  volatile matter and fixed carbon.The result showed  that cellulose  content   48.38   %  -  50.26  %  ;  holocellulose 59.68   %  -60.17    %  ;  lignin 31.33  %  -  33.49  %  ;  pentosan  15.98   %  -  16.43   %  ;  moisture   content 7.34  -9. 98 %  ; ash 0. 64 - 0. 71  % ; silica 0. 57 %  - 0. 60 %.  Solubility in cold water 2. 39 %  - 4.48 %;  in hot water  3.33   %   - 5.93   %  ;  in alcohol-benzene     (1  :  2)  2.35  %   - 2.37    %  and in one percent sodium hydroxide 18. 87 %  - 20. 72 %.Based on chemical analysis,  especially  the cellulose and pentosan  content,   rubberwood is suitable as raw material forpulp and paper,  rayon andfiberwood.Chemical analysis of charcoal indicated that charcoal yield variedfrom 28.16  %  - 29. 77 %  ;  tar   6.86  %  -  7.4666   %  ; pyroligneous   liquor  87.50   -  103.23   %  ;  calorific value  7114.68  cal/gr -7166. 77 cal/gr .fixed carbon 73.82   %  -  78.05 %  and volatile mailer 20.45 % - 23. 61 %. Proximate  analysis  of charcoal  obtained from this  experiments   revealed that   the   quality are suitable for commercial charcoal, metallurgy charcoal and as raw malerial of activated charcoal.

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