Results 81 to 90 of about 443,431 (232)

Relative Desulfurization Reactivity of Thiophenes in Vacuum Gas Oil.

open access: yesJournal of The Japan Petroleum Institute, 1996
減圧軽油 (VGO) 中のチオフェン類の水素化脱硫反応性を, ガスクロマトグラフィー原子発光検出器(GC/AED) および高速液体クロマトグラフィー (HPLC)-電解電離質量分析 (FI/MS) 法を用いて比較検討した。VGO中のチオフェン類の水素化脱硫反応性に違いがあることが判明した。脱硫されやすいチオフェン類はベンゾチオフェン類およびテトラヒドロジベンゾチオフェン類であった。一方, 脱硫されにくいチオフェン類は, 硫黄原子近傍の炭素にアルキル基ないしはナフテン環が付加したジベンゾチオフェン類とベンゾチオフェノベンゾチオフェン類であることが判明した。そして, ベンゾナフトチオフェン類やジナフトチオフェン類では, 硫黄原子に隣接していない外側の芳香環が容易に水素化されると推測された。今日 ...
AOYAGI, Ko   +2 more
openaire   +2 more sources

Modeling and Optimizing a Vacuum Gas Oil Hydrocracking Plant using an Artificial Neural Network

open access: yes, 2018
In this research, based on actual data gathered from an industrial scale vacuum gas oil (VGO) hydrocracker and artificial neural network (ANN) method, a model is proposed to simulate yields of products including light gases, liquefied petroleum gas (LPG),
Sepehr Sadighi   +4 more
core   +1 more source

Oxidative Catalytic Cracking of Heavy Oil Residues

open access: yesEurasian Chemico-Technological Journal, 2001
The features of oxidative cracking of vacuum distillate of Aturau and Zhetybai oil have been investigated. It was found that the yield of gasoline and light gas oil depends on the ratio of natural zeolite and clay in the composite catalysts, flow rate ...
R. K. Ibrasheva   +2 more
doaj   +1 more source

Characteristics of oxidative desulfurization of vacuum gas oil

open access: yes, 2018
Актуальность исследования обусловлена необходимостью поиска более дешевых чем гидроочистка методов переработки вакуумного газойля. Цель работы: установление концентрационных зависимостей окисления серосодержащих компонентов вакуумного газойля.
Иовик, Юлия Александровна   +5 more
core  

Some problem of centrifugal compressors upgrading

open access: yesMATEC Web of Conferences, 2018
The results of computational investigation of the influence of a gas labyrinth seals, oil end seals with floating rings and oil journal bearings lubricating layer stiffness coefficient on centrifugal compressor rotor critical speed are presented and ...
Sadovskiy Nikolai   +3 more
doaj   +1 more source

Dynamic simulation of a pilot scale vacuum gas oil hydrocracking unit by the space-time CE/SE method

open access: yes, 2012
This work introduces a modified space-time conservation element/solution element (CE/SE) method for the simulation of the dynamic behavior of a pilot-scale hydrocracking reactor. With this approach, a four-lump dynamic model including vacuum gas oil (VGO)
Shirvani, Mansoor   +2 more
core   +1 more source

FLUID CATALYTIC CRACKING OF PETROLEUM FRACTION (VACUUM GAS OIL) TO PRODUCE GASOLINE

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2010
In this work, fluid catalytic cracking of vacuum gas oil to produce gasoline over prepared faujasite type Y zeolite was investigated using experimental laboratory plant scale of fluidized bed reactor. The catalytic activity of prepared faujasite type NaY,
Abdul Halim A-K Mohammed   +1 more
doaj  

Biomass derived feedstock co-processing with vacuum gas oil for second-generation fuel production in FCC units

open access: yes, 2010
Hydrodeoxygenated pyrolysis-oils (HDO-oil) are considered promising renewable liquid energy carriers. As such, it cannot be applied in in-stationary combustion engines so more “upgrading” is required.
Toussaint, G.   +11 more
core   +1 more source

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