Abstract
Bu çalışmada, Ermenek Kömürü süperkritik gaz ekstraksiyonu metodu ile sıvılaştırılmıştır. Elde edilen ürünler değişik çözücülerde çözülerek sınıflandırılmıştır. % 52,22 sabit C ihtiva eden Ermenek Linyiti, 360 o C de 120, 150, 200, 278 atm basınç altında, 0,5 litrelik bir otoklavda toluen ile süperkritik şartlarda- ekstrakte edilmiştir. Ekstraksiyon verimi şartlara bağlı olarak, susuz-külsüz kömürün % 19 – 28 i olarak bulunmuştur. Süperkritik gaz ekstraktı, değişik organik çözücülerle ekstrakte edilerek, petrol eterinde çözünen, petrol eterinde çözünmeyip benzende çözünen ve hem petrol eterinde hem de benzende çözünmeyen olarak üç ana kısma ayrılmıştır. 200 atm basınçta gerçekleştirilen deney sonucunda elde edilen ürünlerin ve ekstraktların IR spektrumları alınarak, Ermenek Linyitinin kimyasal yapısı ve özellikleri aydınlatılmaya çalışılmıştır. Aynı zamanda gaz ekstraksiyonu esnasında meydana gelen uçucu kükürtlü bileşikler de tayin edilmiştir. Bu yöntemin geliştirilerek daha büyük ölçekte yapılıp yapılamayacağı ve kömürden sıvı yakıt elde etme konusunda ekonomik olup olmadığının araştırılması uygun olacaktır.
Abstract
In this study, Ermenek Coal has been liquefy by supercritical gas extractions method. The products have been classified by solved at different solvents. Ermenek Lignite containing 52,22 % fixed C has been extracted at 360 o c under120, 150, 200, 278 atm pressure –supercritical conditions- with toluen in an autoclave. It has been found that efficiency of extraction is between 19-28 % of dry ash free coal. The supercritical gas extracts have been separated in to three fractions; by solvent fractionations- petroleum ether solubles, petroleum ether insolubles, benzene solubles and petroleum ether and benzene insolubles-. The fractions obtained under 200 atm and extractes have been analized by means of IR spectrophotometer. The properties and chemical structure of the products have been discussed. In addition, volatile sulphur compounds occured during supercritical gas extractions under that conditions was analized.
Keywords
Details
| Other ID | JA58HV38AK |
|---|---|
| Journal Section | Research Articles |
| Authors | |
| Publication Date | December 1, 2006 |
| Submission Date | December 1, 2006 |
| Published in Issue | Year 2006 Volume: 2 Issue: 27 |
Cite
Journal Owner: On behalf of Selçuk University Faculty of Science, Rector Prof. Dr. Metin AKSOY
Selcuk University Journal of Science Faculty accepts articles in Turkish and English with original results in basic sciences and other applied sciences. The journal may also include compilations containing current innovations.
It was first published in 1981 as "S.Ü. Fen-Edebiyat Fakültesi Dergisi" and was published under this name until 1984 (Number 1-4).
In 1984, its name was changed to "S.Ü. Fen-Edeb. Fak. Fen Dergisi" and it was published under this name as of the 5th issue.
When the Faculty of Letters and Sciences was separated into the Faculty of Science and the Faculty of Letters with the decision of the Council of Ministers numbered 2008/4344 published in the Official Gazette dated 3 December 2008 and numbered 27073, it has been published as "Selcuk University Journal of Science Faculty" since 2009.
It has been scanned in DergiPark since 2016.
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