Ion Bolocan

About Ion Bolocan

Ion Bolocan, With an exceptional h-index of 8 and a recent h-index of 6 (since 2020), a distinguished researcher at Universitatea Petrol-Gaze din Ploiesti, specializes in the field of Chemical Engineering, Chemistry.

His recent articles reflect a diverse array of research interests and contributions to the field:

The reduction of FCCU afterburning through process optimization and regenerator revamping

Hydrodeoxygenation and hydrocracking of oxygenated compounds over CuPd/γ-Al2O3–ZSM-5 catalyst

Rhenium Effect on the Performance of CoMoNi/γ‐Al2O3 Catalyst in Thiophene Hydrodesulphurization. Performance Evaluation and Process Kinetics

Ion Bolocan Information

University

Universitatea Petrol-Gaze din Ploiesti

Position

Professor of Organic Chemistry

Citations(all)

245

Citations(since 2020)

149

Cited By

159

hIndex(all)

8

hIndex(since 2020)

6

i10Index(all)

6

i10Index(since 2020)

3

Email

University Profile Page

Universitatea Petrol-Gaze din Ploiesti

Ion Bolocan Skills & Research Interests

Chemical Engineering

Chemistry

Top articles of Ion Bolocan

The reduction of FCCU afterburning through process optimization and regenerator revamping

Authors

Florin Enache,Dan Dănulescu,Ion Bolocan,Diana Cursaru

Journal

Chemical Industry & Chemical Engineering Quarterly

Published Date

2022/5/4

Operating the fluid catalytic cracking unit (FCCU) in afterburning conditions can increase the regenerator temperatures above the metallurgical design leading to mechanical failures of the cyclones and plenum chamber. This paper presents the methodology applied in a commercial FCCU to investigate the afterburning causes and the technical solutions that can be implemented to reduce the afterburning. Thus, by evaluating the regenerator temperature profile, regenerator as-build design, and the internals mechanical status, it was concluded that the main cause of afterburning was the non-uniform distribution and mixing of air and catalyst. The industrial results showed that optimizing the catalyst bed level, stripping steam, reaction temperature, and equilibrium catalyst (e-cat) activity reduced the afterburning by 39%. Other process parameters such as feed preheat temperature, slurry recycling, and excess oxygen did not significantly influence afterburning because of air and catalyst maldistribution. Revamping the regenerator to assure a symmetrical layout of cyclones reduced the afterburning by 86%, increased the fines retention in FCCU inventory, and provided a better regeneration of the spent e-cat. The reduction of operating temperatures at around 701 C removed the risk of catalyst thermal deactivation, and therefore the e-cat activity was increased by 10.2 wt.%.

Hydrodeoxygenation and hydrocracking of oxygenated compounds over CuPd/γ-Al2O3–ZSM-5 catalyst

Authors

Mihai Marinescu,Daniela Roxana Popovici,Dorin Bombos,Gabriel Vasilievici,Paul Rosca,Elena-Emilia Oprescu,Ion Bolocan

Journal

Reaction Kinetics, Mechanisms and Catalysis

Published Date

2021/8

Biomass is one of the most important renewable energy resources to produce sustainable liquid fuel. This study presents the process of hydrodeoxygenation/hydrocracking on a model of oxygenated compounds such as fatty acid methyl esters using a bifunctional catalyst that contains a metallic function based on copper and palladium and an acid function type ZMS-5. Hydrocracking of methyl esters on the bifunctional catalyst CuPd/γ-Al2O3–ZSM-5 realized on a fix bed reactor led to obtaining of n-alkanes, iso-alkanes, saturated and aromatic cyclic hydrocarbons with 9 to 18 carbon atoms. The conversion reach 100% value at temperature higher than 350 °C. The yield in n-alkanes varies with a maximum at temperature of 325 °C, meanwhile, the yield in iso-alkanes remains approx. constant. The cyclization and aromatization reactions are favored at temperatures higher than 350 °C.

Rhenium Effect on the Performance of CoMoNi/γ‐Al2O3 Catalyst in Thiophene Hydrodesulphurization. Performance Evaluation and Process Kinetics

Authors

Rami Doukeh,Cristian Leostean,Ion Bolocan,Ancuta Roxana Trifoi,Ionut Banu

Journal

ChemistrySelect

Published Date

2021/4/28

The rhenium effect on the performance of CoMoNi/γ‐Al2O3 catalyst was studied in thiophene hydrodesulphurization. The unsulfided and freshly sulfided catalysts were characterized by N2 adsorption‐desorption, IR spectroscopy, X‐ray photoelectron spectroscopy (XPS) and total acidity. The effects of reaction temperature, pressure, and liquid hourly space velocity (LHSV) on thiophene HDS performance shown that the activity of the CoMoNiRe/γ‐Al2O3 catalyst for thiophene HDS was superior to that of the CoMoNi/γ‐Al2O catalyst, which was mainly ascribed to the higher acidic functional groups. Based on Langmuir‐Hinshelwood approach, a kinetic model for thiophene HDS over both catalysts have been developed. In this respect, two mechanisms have been considered, one hypothesizing that hydrogen is adsorbed on different active centers than thiophene (two‐centers mechanism) and the other considering …

See List of Professors in Ion Bolocan University(Universitatea Petrol-Gaze din Ploiesti)

Ion Bolocan FAQs

What is Ion Bolocan's h-index at Universitatea Petrol-Gaze din Ploiesti?

The h-index of Ion Bolocan has been 6 since 2020 and 8 in total.

What are Ion Bolocan's top articles?

The articles with the titles of

The reduction of FCCU afterburning through process optimization and regenerator revamping

Hydrodeoxygenation and hydrocracking of oxygenated compounds over CuPd/γ-Al2O3–ZSM-5 catalyst

Rhenium Effect on the Performance of CoMoNi/γ‐Al2O3 Catalyst in Thiophene Hydrodesulphurization. Performance Evaluation and Process Kinetics

are the top articles of Ion Bolocan at Universitatea Petrol-Gaze din Ploiesti.

What are Ion Bolocan's research interests?

The research interests of Ion Bolocan are: Chemical Engineering, Chemistry

What is Ion Bolocan's total number of citations?

Ion Bolocan has 245 citations in total.

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