scholarly journals Commercial Investigation of the Ebullated-Bed Vacuum Residue Hydrocracking in the Conversion Range of 55–93%

ACS Omega ◽  
2020 ◽  
Vol 5 (51) ◽  
pp. 33290-33304
Author(s):  
Dicho Stratiev ◽  
Svetoslav Nenov ◽  
Ivelina Shishkova ◽  
Borislav Georgiev ◽  
Georgi Argirov ◽  
...  
Keyword(s):  
Vacuum Residue ◽  
Conversion Range

Determination of the sensitive fractions for vacuum residue high temperature fast pyrolysis

Fuel ◽  
2021 ◽  
Vol 299 ◽  
pp. 120903
Author(s):  
Yuanjun Che ◽  
Qian Wang ◽  
Jinhua Huo ◽  
Yuanyu Tian
Keyword(s):  
High Temperature ◽  
Fast Pyrolysis ◽  
Vacuum Residue

Coprocessing of Berguedà lignite with vacuum residue under increasing hydrogen pressure comparison with hydrotreating

Fuel ◽  
1995 ◽  
Vol 74 (11) ◽  
pp. 1704-1708 ◽  
Author(s):  
Christophe Bengoa ◽  
Josep Font ◽  
Angel Moros ◽  
Azael Fabregat ◽  
Francesc Giralt
Keyword(s):  
Hydrogen Pressure ◽  
Vacuum Residue

Kinetic Modeling of Arab Light Vacuum Residue Upgrading by Aquaprocessing at High Space Velocities

2013 ◽  
Vol 52 (2) ◽  
pp. 612-623 ◽  
Author(s):  
Mazin M. Fathi ◽  
Pedro Pereira-Almao
Keyword(s):  
Kinetic Modeling ◽  
Vacuum Residue ◽  
High Space

scholarly journals Comparison of Moving-Bed Catalytic Tar Hydrocracking Processes

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 500
Author(s):  
Vladimir Kapustin ◽  
Elena Chernysheva ◽  
Roman Khakimov
Keyword(s):  
Heterogeneous Catalysts ◽  
Process Management ◽  
Raw Materials ◽  
Oil Industry ◽  
Oil Refining ◽  
Hydrocarbon Potential ◽  
Vacuum Residue ◽  
Advantages And Disadvantages ◽  
Major Process ◽  
Liquid Products

In recent years, there has been a trend in the global oil industry to improve the proportion of heavy high-sulfur crude oils in the total volume of extracted and processed resources, reserves of which are estimated at over 800 billion metric tons. Therefore, the main line of oil refining is processing of heavy crudes and residua to allow maximum use of the hydrocarbon potential and yield of high-margin products. Hydrogenation processes of heavy raw materials are most attractive in terms of product quality. This article analyzes tar hydrocracking processes that are either in operation or at the stage of full-scale testing. These include Veba Combi-Cracker (VCC), Uniflex, suspended-bed catalyst hydrocracking (ENI), and vacuum residue hydroconversion (TIPS RAS). These technologies use heterogeneous catalysts and are designed to obtain the largest possible amount of liquid products. This article discusses the features of each technology, highlights their advantages and disadvantages, shows the main approaches to process management, and speculates about the development of these technologies. Tar refining is a major process in heavy oil upgrading, and the development of efficient tar-processing methods will influence refinery configurations and management.

In Situ Observation of Mesophase Formation and Coalescence in Catalytic Hydroconversion of Vacuum Residue Using a Stirred Hot-Stage Reactor

2012 ◽  
Vol 26 (6) ◽  
pp. 3167-3178 ◽  
Author(s):  
S. Reza Bagheri ◽  
Murray R. Gray ◽  
John M. Shaw ◽  
William C. McCaffrey
Keyword(s):  
In Situ Observation ◽  
Vacuum Residue ◽  
Mesophase Formation

Comparison and Synthesis of Molybdenum Carbonyl Complexes Substituted with Mono- and Bis-Triphenylphosphine Ligands for Hydrocracking of Vacuum Residue

2021 ◽  
Vol 21 (7) ◽  
pp. 4085-4088
Author(s):  
Sung Hyeon Kim ◽  
Byeong Min Choi ◽  
Sun Yeong Park ◽  
Ki Hyuk Kang ◽  
MinChul Chung ◽  
...  
Keyword(s):  
Coke Formation ◽  
Energy Industry ◽  
Vacuum Residue ◽  
Heavy Oils ◽  
Carbonyl Complexes ◽  
Triphenyl Phosphine ◽  
Thermal Decomposition Behavior ◽  
Similar Weight ◽  
Molybdenum Carbonyl ◽  
Decomposition Behavior

(PPh3)Mo(CO)5 and (PPh3)2Mo(CO)4 were synthesized by the reaction of molybdenum hexacar-bonyl with triphenylphosphine and applied as precursors to hydrocracking of vacuum residue under high-pressure and high-temperature conditions. (PPh3)2Mo(CO)4 could also be synthesized by the reaction of (PPh3)Mo(CO)5 with triphenyl phosphine. A commercial precursor (Mo-octoate) for hydrocracking of vacuum residue was used for comparison. The thermal decomposition behavior of (PPh3)Mo(CO)5, (PPh3)2Mo(CO)4, and Mo-octoate was also examined by the thermogravimetric analysis. The TGA curve of (PPh3)Mo(CO)5 and (PPh3)2Mo(CO)4 showed a similar weight-loss pattern. (PPh3)Mo(CO)5 and (PPh3)2Mo(CO)4 were decomposed into Mo metal and ligands rapidly in the range of 140 °C~270 °C. There were no ligands bound to a metal center of (PPh3)Mo(CO)5 and (PPh3)2Mo(CO)4 at the reaction temperature (430 °C) of hydrocracking. The amount of coke formed after hydrocracking over (PPh3)Mo(CO)5 and (PPh3)2Mo(CO)4 was 2.3% and 0.5%, respectively. Upgrading the qualities of heavy oils is an important issue in the energy industry. It is not easy to achieve the complete conversion of vacuum residue due to coke forming during hydrocracking of vacuum residue. This study showed that (PPh3)2Mo(CO)4 was considerably effective in reducing coke formation.

Catalytic vacuum residue upgrading under methane: Evaluation of process feasibility, stability and versatility

Fuel ◽  
2022 ◽  
Vol 309 ◽  
pp. 122155
Author(s):  
Hao Xu ◽  
Yang Song ◽  
Yanyan Zhang ◽  
Hua Song
Keyword(s):  
Vacuum Residue
Sign in / Sign up

Export Citation Format

Share Document