Investigation of the Usability of High Sulfur Coal in Activated Carbon Production

Year 2019, Volume: 7 Issue: 1, 45 - 51, 15.01.2019

Uğur Demir , Sezer Elbinsoy

https://doi.org/10.21541/apjes.365176

Cited By: 1

Abstract

Activated
carbon was especially produced from wood, lignite, organic agricultural wastes
such as coconut shale.  In this study,
high sulfur contained coal was used as a precursor to production of activated
carbon. In the activated carbon production, physical activation method was
applied and several operation parameters such as activation temperature
(350-950 ^oC), activation time (5-120 min.) and particle size of coal
samples (0,25-2 mm) were investigated. High sulfur contained coal samples has
56 m²/gr BET surface area. Produced activated carbons at optimum
conditions have 485 m²/gr and 510 m²/gr BET surface areas
in any gas inherent media and N₂ gas media, respectively.
Furthermore, abilities of removal of Cu²⁺ ions from solution of
produced activated carbons were investigated. In both operation conditions,
approximately 97% Cu²⁺ ions in solutions can be removed.  As a result, it was determined that high
sulfur coals caused environmental problems can be used in non-fuel areas.

Keywords

Activated carbon, coal, sulfur, physical activation method

Aktif Karbon Üretiminde Yüksek Kükürtlü Kömürlerin Kullanılabilirliğinin Araştırılması

Abstract

Aktif karbon, genellikle odun,
kömür,  Hindistan cevizi kabuğu gibi
çeşitli zirai atıklardan üretilmektedir. Bu çalışmada, aktif karbon üretilmesi
için hammadde olarak yüksek oranda kükürt içeren kömür kullanılmıştır. Aktif
karbon üretiminde fiziksel aktivasyon yöntemi uygulanmış, bu yöntemde etkili
olan aktivasyon sıcaklığı (350-950 ^oC), aktivasyon süresi (5-120
dakika), tane boyut (0,25-2 mm) gibi değişkenlerin etkileri araştırılmıştır.
Aktif karbon üretiminde hammadde olarak kullanılan kömür numunesinin BET yüzey
alanı 56 m²/gr iken en uygun çalışma şartlarında herhangi bir gaz
girişinin olmadığı işlemde elde edilen aktif karbonun BET yüzey alanı 485 m²/gr
ve inert bir gaz olan N₂ ile yapılan işlem ile elde edilen aktif
karbonun BET yüzey alanı 510 m²/gr olarak ölçülmüştür. Ayrıca elde
edilen aktif karbonun çözeltiden Cu²⁺ iyonlarını uzaklaştırma
kabiliyetleri incelenmiştir. Her iki çalışma şartlarında çözeltideki Cu²⁺
iyonlarının yaklaşık %97’si uzaklaştırılabilmiştir. Yapılan bu çalışma ile
çevresel sorun oluşturan yüksek oranda kükürt içeren kömürlerin yakıt dışı
alanlarda kullanılabileceği belirlenmiştir.

Keywords

Aktif karbon, kömür, kükürt, fiziksel aktivasyon yöntem

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