Effect of Selected Polyhydric Alcohols on Refining Oil Loss in the Neutralization Step

Yooritphun, Kanok; Lilitchan, Supathra; Aryusuk, Kornkanok; Krisnangkura, Kanit

doi:10.1007/s11746-016-2924-4

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…Serbest yağ asitleri alkali çözeltisi ile sabunlaşma tepkimesine girmekte ve sabun fazı meydana gelmektedir. Oluşan sabun fazı, yağ/su emülsiyonuna daha dayanıklı bir yapı kazandırmaktadır [43]. Özellikle yağın serbest yağ asidi içeriğine göre belirlenen alkali miktarından daha fazla alkali kullanımına bağlı olarak nötr yağ kaybı da artmaktadır.…”

Section: Asitlik Gidermeunclassified

Ultrasound applications in the refining of crude oil

Ablay¹,

Özdikicierler²,

Gümüşkesen³

2020

Pamukkale J Eng Sci

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Bitkisel kaynaklı tohum ve meyvelerden elde edilen ham yağların rafinasyonu, yağın yapısındaki istenmeyen bileşenlerin uzaklaştırılması ya da miktarlarının kabul edilebilir düzeye düşürülebilmesi amacıyla uygulanmaktadır. Rafinasyon işlemi sırasında istenmeyen maddeler yağdan uzaklaştırılırken ya da miktarları kabul edilebilir düzeye düşürülürken; yağda bulunan biyoaktif özellikteki bileşenler (tokoferoller, fenolik maddeler, steroller, skualen vb.) nitel ve nicel olarak kayba uğramakta, konjugasyon ve trans izomerizasyon reaksiyonları meydana gelmekte, bir proses bulaşanı olan 3-MCPD oluşabilmektedir. Rafinasyon kademelerindeki biyoaktif madde kaybını azaltmak ve/veya istenmeyen bileşiklerin oluşmasını engellemek için sistem içi, yenilikçi, teknik çözümlerin geliştirilmesi gerekmektedir. Bu amaçla; daha düşük sıcaklıkta gerçekleştirilebilen, işlem süresinin kısaltıldığı, daha az kimyasal madde kullanılan, ultrases destekli rafinasyon gibi yenilikçi ve kimyasal reaksiyonları hızlandırıcı etkisi olduğu bilinen tekniklerin uygulandığı rafinasyon akışlarının geliştirilmesi gerekmektedir. Bu derlemede; ultrases destekli degumming, asitlik giderme ve renk açma konusunda yapılan bilimsel çalışmalar detaylı olarak ele alınarak özetlenmiştir.The refining of crude oils obtained from plant origin seeds and fruits is applied in order to remove the undesirable components in the oil or to reduce the amount to an acceptable level. While the unwanted substances are removed from the oil during the refining process or the quantities are reduced to an acceptable level; bioactive compounds (tocopherols, phenolic substances, sterols, squalene, etc.) in the oil are lost qualitatively and quantitatively, conjugation and trans isomerization reactions and process contaminants such as 3-MCPD occur. Intrasystem, innovative, technical solutions need to be developed to reduce the loss of bioactive compounds in the refining stages and/or to prevent the formation of undesirable compounds. For this purpose; refining flows, which can be carried out at a lower temperature, shorter processing time, using less chemicals, are supported by innovative techniques such as ultrasound-assisted refining and accelerating chemical reactions, need to be developed. In this review; the scientific studies on ultrasound assisted degumming, neutralisation and bleaching steps are summarized in detail.

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Section: Asitlik Gidermeunclassified

Ultrasound applications in the refining of crude oil

Ablay¹,

Özdikicierler²,

Gümüşkesen³

2020

Pamukkale J Eng Sci

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Research Progress of Photocatalytic Deep Denitrification Technology for Oil Products: Mini-review

Chen

Zhang

Liang

2020

RICE

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Due to the presence of nitrides in oil, the stability, storage and transportation safety and deep processing of oil are affected. In recent years, denitrification of oil products has become one of the research hotspots for solving environmental pollution and energy shortages. Modified nanoparticles are important photocatalytic material because they have indicated improvement in the performance as compared with other technologies when they are used for denitrification. There are mainly three kinds of modified nanoparticles applied in the field of photocatalytic denitrification, including titanium catalyst, bismuth catalyst and others. The research on photocatalyst denitrification has been promoted by the advancement of science and technology. This article focuses on the development process, research status and catalytic mechanism of photocatalytic technology in the field of denitrification. In addition, it provides guidance for the preparation of novel modified nanophotocatalysts for high-efficiency applications in the field of denitrification of oils.

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Effect of Selected Polyhydric Alcohols on Refining Oil Loss in the Neutralization Step

Cited by 2 publications

References 19 publications

Ultrasound applications in the refining of crude oil

Ultrasound applications in the refining of crude oil

Research Progress of Photocatalytic Deep Denitrification Technology for Oil Products: Mini-review

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