New Developments in Deep Hydroconversion of Heavy Oil Residues with Dispersed Catalysts. 1. Effect of Metals and Experimental Conditions

1994 ◽  
Vol 8 (3) ◽  
pp. 588-592 ◽  
Author(s):  
Bernard Fixari ◽  
Sylvie Peureux ◽  
Jeanne Elmouchnino ◽  
Pierre Le Perchec ◽  
Michel Vrinat ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Experimental Conditions ◽  
New Developments ◽  
Dispersed Catalysts ◽  
Heavy Oil Residues

New Developments in Deep Hydroconversion of Heavy Oil Residues with Dispersed Catalysts. 2. Kinetic Aspects of Reaction

1994 ◽  
Vol 8 (3) ◽  
pp. 593-597 ◽  
Author(s):  
A. Del Bianco ◽  
N. Panariti ◽  
S. Di Carlo ◽  
P. L. Beltrame ◽  
P. Carniti
Keyword(s):  
Heavy Oil ◽  
New Developments ◽  
Dispersed Catalysts ◽  
Heavy Oil Residues

Deep Hydroconversion of Heavy Oil Residues with Dispersed Catalysts: Analysis of the Transformation

2010 ◽  
Vol 104 (4-5) ◽  
pp. 359-366 ◽  
Author(s):  
S. Peureux ◽  
S. Bonnamy ◽  
B. Fixari ◽  
F. Lambert ◽  
P. Le Perchec ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Dispersed Catalysts ◽  
Heavy Oil Residues

scholarly journals Production of High Purity Biosurfactants Using Heavy Oil Residues as Carbon Source

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3557
Author(s):  
Athina Mandalenaki ◽  
Nicolas Kalogerakis ◽  
Eleftheria Antoniou
Keyword(s):  
Carbon Source ◽  
Heavy Oil ◽  
Oil Pollution ◽  
Batch Reactor ◽  
Production Method ◽  
Promising Alternative ◽  
Heavy Oil Residues ◽  
Oil Residue ◽  
Increasing Demand ◽  
Heavy Oil Residue

Typically, oil pollution cleanup procedures following first response actions include dispersion. Crude oil is biodegradable, and its bioavailability can be increased when dispersed into very fine droplets by means of chemical surfactants. Although their use is widely spread in many applications, the latter may prove toxic, depending on the extent of use. The use of biological means, such as bioremediation and biosurfactants, has emerged over the past years as a very promising ‘green’ alternative technology. Biosurfactants (BSs) are amphiphilic molecules produced by microorganisms during biodegradation, thus increasing the bioavailability of the organic pollutants. It is their biodegradability and low toxicity that render BSs as a very promising alternative to the synthetic ones. Alcanivorax borkumensis SK2 strain ability to produce BSs, without any impurities from the substrate, was investigated. The biosurfactant production was scaled up by means of a sequencing batch reactor (SBR) and a heavy oil residue substrate as the carbon source. The product is free from substrate impurities, and its efficiency is tested on oil bioremediation in the marine environment. The product’s dispersion efficiency was determined by the baffled flask test. The production method proposed can have a significant impact to the market, given the ever-increasing demand for ecologically friendly, reliable, commercially viable and economically competitive environmental cleanup techniques.

An Investigation Into Propagation Behavior of the Steam Chamber During Expanding-Solvent SAGP (ES-SAGP)

SPE Journal ◽  
2019 ◽  
Vol 24 (02) ◽  
pp. 413-430
Author(s):  
Zhanxi Pang ◽  
Lei Wang ◽  
Zhengbin Wu ◽  
Xue Wang
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Physical Simulation ◽  
Heat Losses ◽  
Oil Reservoirs ◽  
Oil Viscosity ◽  
Sweep Efficiency ◽  
Experimental Conditions ◽  
Steam Chamber ◽  
Heavy Oil Reservoirs

Summary Steam-assisted gravity drainage (SAGD) and steam and gas push (SAGP) are used commercially to recover bitumen from oil sands, but for thin heavy-oil reservoirs, the recovery is lower because of larger heat losses through caprock and poorer oil mobility under reservoir conditions. A new enhanced-oil-recovery (EOR) method, expanding-solvent SAGP (ES-SAGP), is introduced to develop thin heavy-oil reservoirs. In ES-SAGP, noncondensate gas and vaporizable solvent are injected with steam into the steam chamber during SAGD. We used a 3D physical simulation scale to research the effectiveness of ES-SAGP and to analyze the propagation mechanisms of the steam chamber during ES-SAGP. Under the same experimental conditions, we conducted a contrast analysis between SAGP and ES-SAGP to study the expanding characteristics of the steam chamber, the sweep efficiency of the steam chamber, and the ultimate oil recovery. The experimental results show that the steam chamber gradually becomes an ellipse shape during SAGP. However, during ES-SAGP, noncondensate gas and a vaporizable solvent gather at the reservoir top to decrease heat losses, and oil viscosity near the condensate layer of the steam chamber is largely decreased by hot steam and by solvent, making the boundary of the steam chamber vertical and gradually a similar, rectangular shape. As in SAGD, during ES-SAGP, the expansion mechanism of the steam chamber can be divided into three stages: the ascent stage, the horizontal-expansion stage, and the descent stage. In the ascent stage, the time needed is shorter during ES-SAGP than during SAGP. However, the other two stages take more time during nitrogen, solvent, and steam injection to enlarge the cross-sectional area of the bottom of the steam chamber. For the conditions in our experiments, when the instantaneous oil/steam ratio is lower than 0.1, the corresponding oil recovery is 51.11%, which is 7.04% higher than in SAGP. Therefore, during ES-SAGP, not only is the volume of the steam chamber sharply enlarged, but the sweep efficiency and the ultimate oil recovery are also remarkably improved.

Studying the Steam Cracking of Heavy Oil over Iron- and Molybdenum-Containing Dispersed Catalysts in a Flow-Type Reactor

2018 ◽  
Vol 10 (4) ◽  
pp. 344-352 ◽  
Author(s):  
R. G. Kukushkin ◽  
P. M. Eletskii ◽  
O. O. Zaikina ◽  
G. A. Sosnin ◽  
O. A. Bulavchenko ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Type Reactor ◽  
Flow Type ◽  
Dispersed Catalysts ◽  
Steam Cracking

scholarly journals Effectiveness of Different Transition Metal Dispersed Catalysts for In Situ Heavy Oil Upgrading

2015 ◽  
Vol 54 (43) ◽  
pp. 10645-10655 ◽  
Author(s):  
Abdullah Al-Marshed ◽  
Abarasi Hart ◽  
Gary Leeke ◽  
Malcolm Greaves ◽  
Joseph Wood
Keyword(s):  
Transition Metal ◽  
Heavy Oil ◽  
Dispersed Catalysts ◽  
Heavy Oil Upgrading
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