Effect of Ultrasonic Emulsification on Oil Agglomeration of Coal

Ercan Şahinoğlu

Makale detayları

Effect of Ultrasonic Emulsification on Oil Agglomeration of Coal

Yazarlar:

Ercan Şahinoğlu

Yayıncı:

Dicle University

Ana Başlıklar:

Kömür

Dergi:

Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi Vol.15 Issue 4, pp.899-905

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001334531

pISSN:

1309-8640

Anahtar kelimeler:

Özet:

 In recent years, coal mining technology has been largely mechanized, resulting in significant fine coal content in the coal produced. Direct use of fine coals without cleaning can lead to serious air pollution and solid waste, posing a major risk to the environment. Therefore, it is very important to clean fine coal before use. Oil agglomeration is one of the methods used to clean fine coal. However, due to the high amount of oil used in this method, the method is generally not economically viable. The way to solve this problem is to emulsify the oil to be used as a binder in the method or to use waste oil as a binder. Emulsifying the oils into the system can reduce the amount of oil used in the method. Thus, the oil cost, which is the biggest disadvantage of the method, can be reduced. In recent years, ultrasonic waves have been used in the emulsification of oils. In this study, very fine sized coal with high ash-sulfur content was subjected to agglomeration process with vegetable waste oil. Agglomeration experiments were carried out with and without emulsifying waste oil and the results obtained were compared. When the agglomeration experiment was performed with waste oil emulsified with ultrasonic device 10 oil content, the highest combustible recovery value was 93.46. In the agglomeration experiment without emulsifying the waste oil, the combustible recovery value was 82.87. Ash rejection values ranged between 39.17-46.92.

 In recent years, coal mining technology has been largely mechanized, resulting in significant fine coal content in the coal produced. Direct use of fine coals without cleaning can lead to serious air pollution and solid waste, posing a major risk to the environment. Therefore, it is very important to clean fine coal before use. Oil agglomeration is one of the methods used to clean fine coal. However, due to the high amount of oil used in this method, the method is generally not economically viable. The way to solve this problem is to emulsify the oil to be used as a binder in the method or to use waste oil as a binder. Emulsifying the oils into the system can reduce the amount of oil used in the method. Thus, the oil cost, which is the biggest disadvantage of the method, can be reduced. In recent years, ultrasonic waves have been used in the emulsification of oils. In this study, very fine sized coal with high ash-sulfur content was subjected to agglomeration process with vegetable waste oil. Agglomeration experiments were carried out with and without emulsifying waste oil and the results obtained were compared. When the agglomeration experiment was performed with waste oil emulsified with ultrasonic device 10 oil content, the highest combustible recovery value was 93.46. In the agglomeration experiment without emulsifying the waste oil, the combustible recovery value was 82.87. Ash rejection values ranged between 39.17-46.92.

 In recent years, coal mining technology has been largely mechanized, resulting in significant fine coal content in the coal produced. Direct use of fine coals without cleaning can lead to serious air pollution and solid waste, posing a major risk to the environment. Therefore, it is very important to clean fine coal before use. Oil agglomeration is one of the methods used to clean fine coal. However, due to the high amount of oil used in this method, the method is generally not economically viable. The way to solve this problem is to emulsify the oil to be used as a binder in the method or to use waste oil as a binder. Emulsifying the oils into the system can reduce the amount of oil used in the method. Thus, the oil cost, which is the biggest disadvantage of the method, can be reduced. In recent years, ultrasonic waves have been used in the emulsification of oils. In this study, very fine sized coal with high ash-sulfur content was subjected to agglomeration process with vegetable waste oil. Agglomeration experiments were carried out with and without emulsifying waste oil and the results obtained were compared. When the agglomeration experiment was performed with waste oil emulsified with ultrasonic device 10 oil content, the highest combustible recovery value was 93.46. In the agglomeration experiment without emulsifying the waste oil, the combustible recovery value was 82.87. Ash rejection values ranged between 39.17-46.92.

 Son yıllarda, kömür madenciliği teknolojisi büyük ölçüde mekanize edilmiş, bu da üretilen kömürde önemli oranda ince kömür içeriğine neden olmuştur. İnce kömürlerde temizlenmeden doğrudan kullanıldığında ciddi hava kirliliğine ve katı atıklara yol açarak çevre için büyük bir risk oluşturabilir. Bu nedenle, ince kömürün kullanılmadan önce temizlenmesi çok önemlidir. Yağ aglomerasyonu, ince boyutlu kömürlerin temizlenmesinde kullanılan yöntemlerden biridir. Ancak, bu yöntemde kullanılan yağ miktarının fazla olması nedeniyle yöntem genellikle ekonomik olarak uygun görülmemektedir. Bu sorunu çözmemin yolu, yöntemde bağlayıcı olarak kullanılacak yağın sisteme emülsifiye edilerek verilmesi veya bağlayıcı olarak atık yağların kullanılması olabilir. Yağların sisteme emülsifiye edilerek verilmesi yöntemde kullanılan yağ miktarını azaltabilir. Böylelikle yöntemin en büyük dezavantajı olan yağ maliyeti azaltılabilir. Son yıllarda yağların emülsifikasyonunda ultrasonik dalgalar kullanılmaya başlanmıştır. Bu çalışmada, çok ince boyutlu yüksek kül-kükürt içerikli kömür bitkisel atık yağ ile aglomerasyon işlemine tabi tutulmuştur. Atık yağ emülsifiye edilerek ve emülsifiye edilmeden aglomerasyon deneyleri yapılmış olup elde edilen sonuçlar karşılaştırılmıştır. Ultrasonik cihazla emülsifiye edilen atık yağ 10 yağ miktarı ile aglomerasyon deneyi yapıldığında en yüksek yanabilir verim değeri 93,46 olarak elde edilmiştir. Atık yağ emülsifiye edilmeden yapılan aglomerasyon deneyinde ise yanabilir verim değeri 82,87 olarak bulunmuştur. Kül giderimi değerleri ise 39,17-46,92 arasında değişmiştir.

Makale detayları

Effect of Ultrasonic Emulsification on Oil Agglomeration of Coal

Yazarlar:

Ercan Şahinoğlu

Yayıncı:

Dicle University

Ana Başlıklar:

Kömür

Dergi:

Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi Vol.15 Issue 4, pp.899-905

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001334531

pISSN:

1309-8640

Coal

Oil Agglomeration

Waste Oil

Ultrasonic EmulsificationKömür

Yağ Aglomerasyonu

Atık Yağ

Ultrasonik Emülsifikasyon

Sayı

Makale detayları

Yazarlar: Ercan Şahinoğlu

Yayıncı: Dicle University

Ana Başlıklar: Kömür

Dergi: Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi Vol.15 Issue 4, pp.899-905

Belge Tipi: Makale

Yayın Tarihi: 12/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001334531

pISSN: 1309-8640

Sayı

Yazarlar:

Ercan Şahinoğlu

Yayıncı:

Dicle University

Ana Başlıklar:

Kömür

Dergi:

Dicle Üniversitesi Mühendislik Fakültesi Mühendislik Dergisi Vol.15 Issue 4, pp.899-905

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001334531

pISSN:

1309-8640