Dynamic Simulation of a Pilot Scale Vacuum Gas Oil Hydrocracking Unit by the Space-Time CE/SE Method

2012 ◽  
Vol 35 (5) ◽  
pp. 919-928 ◽  
Author(s):  
S. Sadighi ◽  
A. Ahmad ◽  
M. Shirvani
Keyword(s):  
Dynamic Simulation ◽  
Pilot Scale ◽  
Space Time ◽  
Vacuum Gas Oil ◽  
Gas Oil

Studies on the Catalytic Cracking of Different Gas Oils for Maximizing Propylene

2012 ◽  
Vol 524-527 ◽  
pp. 1889-1894 ◽  
Author(s):  
Xiao Bo Chen ◽  
Ben Xian Shen ◽  
Chun Yi Li ◽  
Hong Hong Shan ◽  
Dong Zhang ◽  
...  
Keyword(s):  
Hydrogen Content ◽  
Catalytic Cracking ◽  
Pilot Scale ◽  
Acid Sites ◽  
Fluid Catalytic Cracking ◽  
Zeolitic Catalyst ◽  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Coker Gas Oil ◽  
Propylene Yield

The effects of feedstock’s properties on the propylene yield of catalytic cracking were investigated in a fluid catalytic cracking (FCC) pilot scale riser test unit operating with a circulating catalyst. Under simulated conditions, the results of catalytic cracking with four different gas oils (including two kinds of vacuum gas oil (VGO) and two kinds of coker gas oil (CGO)) show that the yield of propylene is increasing with the ascending hydrogen content of feed. When the hydrogen content is almost the same, propylene yield fed with paraffinic-base VGO is higher than that fed with intermediate-base or naphthenic-base VGO. The lowest yield is fed with CGO because of the more nitrogen compounds, which can poison the acid sites of the zeolitic catalyst.

Modeling and Evaluating Zeolite and Amorphous Based Catalysts in Vacuum Gas Oil Hydrocracking Process

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Davood Faraji ◽  
Sepehr Sadighi ◽  
Hossein Mazaheri
Keyword(s):  
Pilot Scale ◽  
Zeolite Catalysts ◽  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Average Deviation ◽  
Hydrocracking Process ◽  
Kinetic Coefficients ◽  
Significant Process ◽  
Heavy Fractions ◽  
Effect Of Support

AbstractHydrocracking is a significant process in a refinery which is commonly used for converting heavy fractions such as vacuum gas oil (VGO) to the valuable products such as naphtha and diesel. In this research, VGO hydrocracking process was studied in a pilot scale plant in the presence of a zeolite and two amorphous based commercial catalysts called RK-NiY, RK-MNi and KF-101, respectively. In order to study the effect of support on the yield of the process, a discrete 4-lump kinetic model, including feed (vacuum gas oil and unconverted materials), distillate (diesel and kerosene), naphtha and gas was proposed for each catalyst. At first, each network had six reaction paths and twelve kinetic coefficients, and then by using the model reduction methodology, only four main routes for RK-MNi and RK-NiY, and three ones for KF-101 were designated. Results showed that the absolute average deviation (AAD%) of reduced models decreased from 5.11 %, 10.1 % and 21.8 % to 4.54 %, 8.9 % and 19.67 % for RK-MNi, KF-101 and RK-NiY, respectively. Moreover, it was confirmed that amorphous and zeolite catalysts could be selected for producing middle distillate and naphtha products, respectively.

Exploration of in-situ formed MoSx catalyst for co-hydrodeoxygenation of sawdust and vacuum gas oil in pilot-scale plant

2021 ◽  
pp. 120499
Author(s):  
Dong Liu ◽  
Zhiheng Li ◽  
Chong Chong Wu ◽  
Linhua Song ◽  
PingPing Wu ◽  
...  
Keyword(s):  
Pilot Scale ◽  
Vacuum Gas Oil ◽  
Gas Oil

scholarly journals Distillation of vacuum gas oil in a column with new packings

2020 ◽  
Vol 976 ◽  
pp. 012017
Author(s):  
M I Farakhov ◽  
A G Laptev ◽  
T M Farakhov ◽  
A A Akhmitshin
Keyword(s):  
Vacuum Gas Oil ◽  
Gas Oil

Apparent Kinetics of Co‐Gasification of Biomass and Vacuum Gas Oil (VGO)

2020 ◽  
Author(s):  
Tareq A. Al-Attas ◽  
Rahima A. Lucky ◽  
Mohammed Mozahar Hossain
Keyword(s):  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Kinetics Of

Co-Processing of Deoxygenated Pyrolysis Bio-Oil with Vacuum Gas Oil through Hydrocracking

2021 ◽  
Author(s):  
Anton Alvarez-Majmutov ◽  
Sandeep Badoga ◽  
Jinwen Chen ◽  
Jacques Monnier ◽  
Yi Zhang
Keyword(s):  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Bio Oil
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