Investigation of storage stability of gas oils containing waste originated biodiesel

György Pölczmann, Orsolya Tóth, Adám Beck, J. Hancsók

Research output: Contribution to journalArticle

Abstract

One of the pillars of sustainable development is the mobility, which has significant energy demand. Nowadays in Europe the demand for diesel fuel continuously growing, while the demand for gasoline decreases slightly. Currently, the biodiesel is the biofuel which is blended into the gas oil with the highest amount in case of Diesel engines, which can be produced from different, even waste-derived triglycerides (with transesterification with alcohol). Due to the adverse properties of biodiesel the storage stability of biodiesel/diesel blends have to be examined in detail. In our experimental work we studied the changes in the qualities of biodiesels produced from vegetable oil which contained various waste cooking oil (waste-derived component) share (10, 30, 50 %), and its 7 and 10 % blends with gas oil in case of long-term (more than 150 weeks) storage. We found that with the increasing the proportion of used cooking oil in the vegetable oil used as raw material for biodiesel the oxidation reactions took place in greater amount during the storage of the biodiesel product. Biodiesel made from vegetable oils containing 10 % used cooking oil was the most applicable for blending; in case of using higher proportion it is very necessary to use further amount of antioxidant additives to minimize the degradation. The test results suggest that without the addition of additives the biodiesels are not allowed to store longer than six months, and the diesel-biodiesel blends are not allowed to store longer than 1 year. We established mathematical relationships which describe well the relationship between the Rancimat induction period and the kinematic viscosity and the acid number in case of the investigated biodiesels..

Original languageEnglish
Pages (from-to)991-996
Number of pages6
JournalChemical Engineering Transactions
Volume39
Issue numberSpecial Issue
DOIs
Publication statusPublished - 2014

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Biofuels
Gas oils
Biodiesel
Vegetable oils
Cooking
Plant Oils
Oils
Transesterification
Diesel fuels
Antioxidants
Gasoline
Diesel engines
Sustainable development
Raw materials
Alcohols
Triglycerides
Viscosity
Degradation
Oxidation
Acids

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Investigation of storage stability of gas oils containing waste originated biodiesel. / Pölczmann, György; Tóth, Orsolya; Beck, Adám; Hancsók, J.

In: Chemical Engineering Transactions, Vol. 39, No. Special Issue, 2014, p. 991-996.

Research output: Contribution to journalArticle

Pölczmann, György ; Tóth, Orsolya ; Beck, Adám ; Hancsók, J. / Investigation of storage stability of gas oils containing waste originated biodiesel. In: Chemical Engineering Transactions. 2014 ; Vol. 39, No. Special Issue. pp. 991-996.
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