The Extraction of Wood In Fixed Bed and Atmospheric Condition

Melek GÜRKAHRAMAN; Dursun PEHLİVAN

Makale detayları

The Extraction of Wood In Fixed Bed and Atmospheric Condition

Yazarlar:

Melek GÜRKAHRAMAN | Dursun PEHLİVAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Engineering and Environmental Sciences 1999 Vol.23 Issue 4, pp.239-250

Belge Tipi:

Makale

Yayın Tarihi:

3/1999

Belge Dili:

Türkçe

Document ID (Org No.):

2000745338

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160

Özet:

 

Extraction of poplar wood chips with ethanol in a fixed bed  and in a soxhlet apparatus in atmosferic conditions was studied.  The  fixed-bed extraction of the wood was carried out at 30°C and 70°C bed  temperatures The conversion rates of wood (daf basis) were determined  from the decrease in the amounts of wood in the bed.  The extract  yield obtained in a fixed bed was 6.45% at 30°C and 7.44% at 70°C.  The yield reached 6.02% in a soxhlet apparatus.  FTIR and TGA  analyses of the extracts were also undertaken.  The FTIR spectra of  the extracts indicated mainly lignin and hemicellulose properties.   The TGA patterns showed that the lignin components transfered into the  extracts were decomposed first.

 

Extraction of poplar wood chips with ethanol in a fixed bed  and in a soxhlet apparatus in atmosferic conditions was studied.  The  fixed-bed extraction of the wood was carried out at 30°C and 70°C bed  temperatures The conversion rates of wood (daf basis) were determined  from the decrease in the amounts of wood in the bed.  The extract  yield obtained in a fixed bed was 6.45% at 30°C and 7.44% at 70°C.  The yield reached 6.02% in a soxhlet apparatus.  FTIR and TGA  analyses of the extracts were also undertaken.  The FTIR spectra of  the extracts indicated mainly lignin and hemicellulose properties.   The TGA patterns showed that the lignin components transfered into the  extracts were decomposed first.

Makale detayları

The Extraction of Wood In Fixed Bed and Atmospheric Condition

Yazarlar: Melek GÜRKAHRAMAN | Dursun PEHLİVAN

Yayıncı: TUBITAK

Dergi: Turkish Journal of Engineering and Environmental Sciences 1999 Vol.23 Issue 4, pp.239-250

Belge Tipi: Makale

Yayın Tarihi: 3/1999

Belge Dili: Türkçe

Document ID (Org No.): 2000745338

Sıklık: Üç Yıllık

eISSN: 1303-6157

pISSN: 1300-0160

Sayı

Yazarlar:

Melek GÜRKAHRAMAN | Dursun PEHLİVAN

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Engineering and Environmental Sciences 1999 Vol.23 Issue 4, pp.239-250

Belge Tipi:

Makale

Yayın Tarihi:

3/1999

Belge Dili:

Türkçe

Document ID (Org No.):

2000745338

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160