Hydrocracking of Various Vacuum Residues DOI Creative Commons
Dicho Stratiev

Fuels, Journal Year: 2025, Volume and Issue: 6(2), P. 35 - 35

Published: May 7, 2025

The residue conversion processes, coking, visbreaking, and fluid catalytic cracking (FCC), have demonstrated that feedstock quality is the single factor most affects process performance. While, for FCC, it known heavy oil at a maximum gasoline yield point can vary between 50 85 wt. %, vacuum hydrocracking, no reports appeared yet to reveal dependence of on being hydrocracked. In order search such dependence, eight residues derived from medium, heavy, extra crude oils been hydrocracked in laboratory unit different reaction temperatures. current study has witnessed hydrocracking obeys same rule as other confirming great influence A variation 45 % be observed when sediment content atmospheric within acceptable limit, guaranteeing planned cycle length. An intercriteria analysis was performed, revealed negative consonances with contents nitrogen metals. Correlations were developed which predict constant operating conditions uncertainty measurement 1.7 correlation coefficient 0.964. (HCAR) predicted 0.985. correlations this work disclosed higher metals, nitrogen, asphaltenes, lower sulfur, is. It also shown residues, reactivity (the identical conditions), indicate significant difference HCAR due their diverse propensity form sediments hydrocracking.

Language: Английский

A comparison of results of determining the hydrocarbon group-type composition of petroleum samples obtained using various test methods of open-column liquid chromatography DOI
D. I. Panyukova, К. Ossipov, Elena Yu. Savonina

et al.

Industrial laboratory Diagnostics of materials, Journal Year: 2025, Volume and Issue: 91(1), P. 5 - 14

Published: Jan. 26, 2025

The hydrocarbon group-type composition (so-called SARA -composition) is one of the main characteristics oil, providing an information about its chemical nature and determining quality obtained petroleum products. In world laboratory practice, data on feedstock are widely used to assess colloidal stability compatibility with crude reactivity in various conversion processes, predicting physical properties, etc. Traditionally, determined accordance standard research chromatographic methods that differ significantly from each other, which often leads obtaining incomparable analytical results. this paper, a comparative analysis results two test within open-column liquid chromatography method carried out for samples Russian origin (commercial oils different classes products). Using ASTM D4124 (method B) developed by JSC VNII NP, content identical groups maltene part was determined: saturated hydrocarbons (SH) paraffinic-naphthenic (PNH), naphthenic aromatic (NAH) (AH), polar (PAH) resins (R), respectively. It shown increase density viscosity samples, less (SH PNH) their decreases more (PAH R) obviously increases, there no pronounced distribution pattern NAH AH groups. Statistical processing revealed insignificant differences «heavy viscous» oils, despite large error those according method. Obtaining comparable justifies use both not only high-boiling products, but also oil samples.

Language: Английский

Citations

0
Supervised Learning to Improve Software for Crude Oil Analysis Using Low-Field NMR Relaxometry DOI
Salim Ok, Talha Furkan Canan,

Sohaib Kholosy

et al.

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Language: Английский

Citations

0
Hydrocracking of Various Vacuum Residues DOI Creative Commons
Dicho Stratiev

Fuels, Journal Year: 2025, Volume and Issue: 6(2), P. 35 - 35

Published: May 7, 2025

The residue conversion processes, coking, visbreaking, and fluid catalytic cracking (FCC), have demonstrated that feedstock quality is the single factor most affects process performance. While, for FCC, it known heavy oil at a maximum gasoline yield point can vary between 50 85 wt. %, vacuum hydrocracking, no reports appeared yet to reveal dependence of on being hydrocracked. In order search such dependence, eight residues derived from medium, heavy, extra crude oils been hydrocracked in laboratory unit different reaction temperatures. current study has witnessed hydrocracking obeys same rule as other confirming great influence A variation 45 % be observed when sediment content atmospheric within acceptable limit, guaranteeing planned cycle length. An intercriteria analysis was performed, revealed negative consonances with contents nitrogen metals. Correlations were developed which predict constant operating conditions uncertainty measurement 1.7 correlation coefficient 0.964. (HCAR) predicted 0.985. correlations this work disclosed higher metals, nitrogen, asphaltenes, lower sulfur, is. It also shown residues, reactivity (the identical conditions), indicate significant difference HCAR due their diverse propensity form sediments hydrocracking.

Language: Английский

Citations

0