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- Title
Comparative characteristics of ethapolan and xanthan exopolysaccharides as agents for the increasing secondary oil extraction.
- Authors
Ivakhniuk, Mykola; Pirog, Tetyana
- Abstract
Introduction. The purpose of research - to compare the cost of nutrient mediums for obtaining culture fluids of Acinetobacter sp. IMB B-7005 and Xanthomonas campestris strains (xanthan gum producers) for its using in the secondary oil extraction. Materials and methods. Calculation of the culture fluid amount and the cost of nutrients for the ethapolan (producer - Acinetobacter sp. IMB B-7005) and xanthan (producers of Xanthomonas campestris strains) exopolysaccharides production as oil extraction agents for 262 oil wells of Oil and Gas Production Administration "Okhtyrkanaftogas" of JSC "Ukrnafta" was carried out taking into account the following parameters:4 times treatment per year of wells with the 15 m3 of EPS solution with its concentration 0,05%). Results and discussions. On the basis of the data on the concentration of synthesized polysaccharides by strainsproducer, the annual need for a culture fluid (545-1849 m3) was calculated for the treatment of wells of the OGPA "Okhtyrkanaftogas" and the amount of product per fermentation cycle according to selected technologies. Theoretical calculations have shown that costs for the nutrient medium preparing for Acinetobacter sp. IMB B-7005 culture fluid obtaining on waste sunflower oil after frying meat, necessary for increasing secondary oil extraction at "Okhtyrkanaftogas" wells in 1.8-5.4 times less than in the case of ethapolan obtaining on C2-C6 substrates, molasses or their mixtures. Comparison of nutrient medium cost for the preparation of ethapolan and the most famous polysaccharide xanthan obtained on molasses on technical glycerine was made. The cost of polysaccharide xanthan obtaining (in amount that would provide oil extraction in equivalent quantity like in case of ethapolan using) in 12.7-16.7 times higher compared to the ethapolan obtaining. Conclusion. Obtained results confirm the economic feasibility of the ethapolan synthesis on waste oil for the polysaccharide using in secondary oil production in comparison with the technologies for xanthan obtaining.
- Subjects
XANTHOMONAS campestris; MICROBIAL exopolysaccharides; XANTHAN gum; POLYSACCHARIDES; ACINETOBACTER
- Publication
Ukrainian Journal of Food Science, 2018, Vol 6, Issue 1, p62
- ISSN
2310-1008
- Publication type
Article
- DOI
10.24263/2310-1008-2018-6-1-9