Kanola Saplarından (Brassica napus L.) Modifiye Kraft Yöntemi ile Kağıt Hamuru ve Kağıt Üretimi Üzerine Araştırmalar

Year 2018, Volume: 18 Issue: 3, 357 - 365, 28.12.2018

Mehmet Akgül İlhan Erdönmez Mustafa Çiçekler , Ahmet Tutuş

https://doi.org/10.17475/kastorman.499091

Cited By: 4

Abstract

Çalışmanın amacı: Bu çalışma, kanola (Brassica napus L.) saplarının kağıt hamuru ve kağıt üretiminde
alternatif bir hammadde olarak değerlendirilmesini amaçlamıştır.

Çalışmanın alanı: Bu çalışma Kahramanmaraş Sütçü İmam
Üniversitesi, Orman Fakültesi, Kağıt Hamuru ve Kağıt Üretim Laboratuvarı'nda
yürütülmüştür.

Materyal ve Yöntem: Kağıt hamuru üretimine geçilmeden önce
kanola saplarının kimyasal içeriği araştırılmıştır. Holoselüloz, alfa selüloz,
lignin ve kül içerikleri ile NaOH (%1), soğuk ve sıcak su çözünürlükleri
belirlenmiştir. Kanola saplarından kağıt hamuru üretimi için NaBH₄
ilaveli modifiye kraft yöntemi kullanılmıştır. Sülfidite %26, 28 ve 30, NaBH₄;
%0, 0.1, 0.3, ve 0.5 oranlarında değiştirilirken aktif alkali oranı %20 olarak
sabit tutulmuştur. Optimum koşulu belirlemek için 12 farklı koşulda pişirme
işlemi yapılmıştır. Ayrıca elde edilen kağıt hamurlarından üretilen kağıtların
fiziksel ve optik özellikleri de belirlenmiştir.

Sonuçlar: Kanola saplarının holoselüloz (%72.10) ve
lignin (%13.15) içeriği yapraklı ağaç odunları ile benzer oranlarda
bulunmuştur. Optimum pişirme, %20 aktif alkali, %28 sülfidite ve %0.5 NaBH₄
oranlarının kullanıldığı koşulda elde edilmiş ve bu koşulda kağıt hamuru toplam
verimi %44.7 olarak bulunmuştur. Aynı zamanda NaBH₄ ilavesi ile
toplam verim %24.1 oranında artarken kappa numarası %9.7 oranında azalmıştır.

Araştırma Vurguları: Elde edilen sonuçlar, kanola saplarının
kağıt hamuru ve kağıt üretimi için uygunluğunu ve NaBH₄'ün hamur
verimliliği için etkili bir pişirme katkı maddesi olduğunu ortaya koymuştur.

Keywords

Brassica napus L., kanola sapları, NaBH4, Kraft pişirmesi

The Investigations on Pulp and Paper Production with Modified Kraft Pulping Method from Canola (Brassica napus L.) Stalks

Abstract

Aim of study: This study was carried out to evaluate
canola (Brassica napus L.) stalks as
an alternative raw material for pulp and paper production.

Area of study: This work was carried out in Kahramanmaraş
Sütçü Imam University, Faculty of Forestry, Pulp and Paper Production
Laboratory.

Material and Methods: Before pulping procedure, the chemical
components of the canola stalks were investigated. The holocellulose, alpha
cellulose, lignin, and ash contents and NaOH (1%) and cold-hot water
solubilities were determined. Modified kraft cooking method was used for
pulping from canola stalk by using sodium borohydride (NaBH₄).
Sulfidity charge; 26, 28, 30%, and NaBH₄ charge; 0, 0.1, 0.3, 0.5%
were changed while keeping constant temperature (150 ^oC), time (120
min) and alkali charge (20%). For determination of the optimum pulping condition,
12 cooking experiments were performed to canola stalks. In addition, the
physical and optical properties of the papers produced from the obtained pulps
were also determined.

Main results: The holocellulose (72.10%) and lignin
(13.15%) contents of the canola stalks were found to be similar with hardwoods.
The optimum cooking condition was determined as 20% active alkali, 28%
sulfidity and 0.5% NaBH₄ charges (as NaOH) and the total pulp yield
were obtained about 44.7% in this condition. Besides, the addition of NaBH₄
increased pulp yield by 24.1% and decreased kappa number by 9.7%.

Research highlights: It was concluded that obtained results
demonstrate the suitability of canola stalk for pulp and paper production and
NaBH₄ is an effective cooking additive for the pulp yield.

Keywords

Brassica napus L., canola stalk, NaBH4, Kraft pulping

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