vacuum distillation
Recently Published Documents


TOTAL DOCUMENTS

644
(FIVE YEARS 173)

H-INDEX

24
(FIVE YEARS 9)

Vacuum ◽  
2022 ◽  
Vol 196 ◽  
pp. 110789
Author(s):  
Zhaowang Dong ◽  
Xueyi Guo ◽  
Bin Yang ◽  
Heng Xiong ◽  
Wenlong Jiang

2022 ◽  
pp. 130356
Author(s):  
Zhichao Li ◽  
Juhai Deng ◽  
Dachun Liu ◽  
Wenlong Jiang ◽  
Guozheng Zha ◽  
...  

2021 ◽  
Vol 279 ◽  
pp. 119776
Author(s):  
Zhaowang Dong ◽  
Zhentao Zhou ◽  
Heng Xiong ◽  
Bin Yang ◽  
Yongnian Dai

2021 ◽  
Vol 4 (2) ◽  
pp. 33-39
Author(s):  
B. O. Korchak ◽  
◽  
O. B. Hrynyshyn ◽  
T. I. Chervinskyy ◽  
S. V. Pysh`yev ◽  
...  

The main methods of regeneration of used mineral motor oils, in particular physical, chemical, physicochemical methods are considered. The functional-cost analysis of methods of regeneration of the used mineral motor oils by means of branch experts is carried out. Functional-cost analysis is a method of pairwise comparisons and involves the process of ranking the selected characteristics according to the degree of importance (weight). To do this, each characteristic is assigned a certain index. As a result of the functional-cost analysis, the expediency of using technologies of vacuum distillation and hydrocracking of used oils in the processes of regeneration of used oils has been established.


2021 ◽  
Vol MA2021-02 (60) ◽  
pp. 1784-1784
Author(s):  
Jungshin Kang ◽  
Tae-Hyuk Lee ◽  
Hyeong-Jun Jeoung ◽  
Dong-Hee Lee ◽  
Young Min Kim ◽  
...  

Vacuum ◽  
2021 ◽  
pp. 110674
Author(s):  
Huan Luo ◽  
WenLong Jiang ◽  
GuoZheng Zha ◽  
Lang Liu ◽  
TianTian Zhen ◽  
...  
Keyword(s):  

2021 ◽  
Vol 1195 (1) ◽  
pp. 012050
Author(s):  
S X H’ng ◽  
L Y Ng ◽  
D K S Ng ◽  
V Andiappan

Abstract Crude oil blending is an important step for the operation of crude distillation systems in the refinery to improve the yield and profitability of the products. The product’s yield and quality are strongly dependent on the properties of the crude oil. However, the products of crude distillation units, especially the vacuum distillation unit (VDU) need to satisfy the yield and quality requirements of the downstream process units in the refinery. Otherwise, the performance of downstream processes will be affected, and loss of profitability in the refinery. Hence, it is important to optimise the performance of the VDU to ensure the optimum operation of VDU. This work covers the process simulation of VDU, surrogate modelling and mathematical optimisation model. The objective of the developed optimisation model is to determine an optimal for maximum high vacuum gas oil (HVGO) yield and minimum total annualised cost (TAC) respectively. To do this, crude oil blending ratio, column temperature, column pressure, stripping steam flowrate, pump-around flowrate in the VDU are optimised. Based on the optimised result, the heavy-light crude blend achieves higher HVGO yield and lower TAC as compared to the heavy-medium crude blend and heavy-medium-light crude blend. The optimised results can provide insight into the optimal process conditions of VDU for the refiners. With this insight, effective operating strategies can be developed to overcome the limitations present in real VDU operations.


2021 ◽  
Vol 2021 (8) ◽  
pp. 978-986
Author(s):  
A. A. Korolev ◽  
K. L. Timofeev ◽  
G. I. Maltsev

Sign in / Sign up

Export Citation Format

Share Document