2014
DOI: 10.1080/10916466.2012.721439
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Abstract: Effectiveness of coker gas oil (CGO) used as industrial hydrogen donors in the visbreaking was revealed. Hydrogen-transferring abilities of different CGO narrow fractions were first analyzed. The fraction of 350-420 • C (HDII) turned out to be the best selection as hydrogen donors and then we did visbreaking experimental tests. The results show that, in contrast with conventional visbreaking, the addition of HDII achieves higher conversion of residues to desirable liquid product and effectively suppresses coke… Show more

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Cited by 18 publications
(17 citation statements)
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(5 reference statements)
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“…It is known that the visbreaking of crude oil without H-donor additives can lead to significant coke formation, depending on the nature of the feedstock. 17,19,20 The lowest amount of coke (0.023 wt %) was observed for VR + kerosene, and the highest, for VR + HCO (0.18 wt %). The lowest conversion was obtained for VR + HCO (8.7 wt %).…”
Section: Resultsmentioning
confidence: 99%
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“…It is known that the visbreaking of crude oil without H-donor additives can lead to significant coke formation, depending on the nature of the feedstock. 17,19,20 The lowest amount of coke (0.023 wt %) was observed for VR + kerosene, and the highest, for VR + HCO (0.18 wt %). The lowest conversion was obtained for VR + HCO (8.7 wt %).…”
Section: Resultsmentioning
confidence: 99%
“…In all cases, the coke formed during visbreaking was partially deposited on the reactor walls and remained in the composition of liquid products (0.03–0.18 wt %) (Table ). It is known that the visbreaking of crude oil without H-donor additives can lead to significant coke formation, depending on the nature of the feedstock. ,, The lowest amount of coke (0.023 wt %) was observed for VR + kerosene, and the highest, for VR + HCO (0.18 wt %). The lowest conversion was obtained for VR + HCO (8.7 wt %).…”
Section: Resultsmentioning
confidence: 99%
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“…Moreover, enzyme preparations have the advantage of short degradation time and they do not require the use of live microorganisms, which is conducive to application in heavy oil reservoirs with poor growth of oxygen-consuming microorganisms in situ. The high contents of longchain hydrocarbons with a complex structure, heteroatoms (e.g., O, N, S, and metals), and asphaltenes in heavy oil lead to its high viscosity [38]. Moreover, these adverse conditions usually have negative effects on biodegradation of the oil.…”
Section: Viscosity Reduction Of Heavy Oilmentioning
confidence: 99%
“…Moreover, enzyme preparations have the advantage of short heavy oil degradation time and they do not require the use of live microorganisms, which is conducive to use in heavy oil reservoirs with poor growth of oxygenconsuming microorganisms in situ. The high contents of long-chain hydrocarbons with a complex structure, heteroatoms (e.g., O, N, S and metals), and asphaltenes in heavy oil lead to its high viscosity [37].…”
Section: Viscosity Reduction Of Heavy Oilmentioning
confidence: 99%