scholarly journals Experimental study on viscosity reduction of heavy oil by hydrogen donors using a cavitating jet

RSC Advances ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 2509-2515 ◽  
Author(s):  
Chunhao Wan ◽  
Ruihe Wang ◽  
Weidong Zhou ◽  
Luopeng Li
Keyword(s):  
Experimental Study ◽  
High Pressure ◽  
Heavy Oil ◽  
Viscosity Reduction ◽  
Bubble Collapse ◽  
Extreme Conditions ◽  
High Pressure And Temperature ◽  
Hydrogen Donors ◽  
Cavitating Jet

Cavitating jet technology is used to change the quality and to reduce the viscosity of heavy oil because bubble collapse can cause extreme conditions such as high pressure and temperature.

Experimental study on a biomass-based catalyst for catalytic upgrading and viscosity reduction of heavy oil

2019 ◽  
Vol 143 ◽  
pp. 104684
Author(s):  
Xiao-Dong Tang ◽  
Tian-Da Zhou ◽  
Jing-Jing Li ◽  
Chang-Lian Deng ◽  
Guang-Fu Qin
Keyword(s):  
Experimental Study ◽  
Heavy Oil ◽  
Viscosity Reduction ◽  
Catalytic Upgrading

Erosive Effects of High Pressure and High Temperature Gases on Steel

1977 ◽  
Vol 99 (3) ◽  
pp. 239-243 ◽  
Author(s):  
A. C. Alkidas ◽  
C. W. Christoe ◽  
L. H. Caveny ◽  
M. Summerfield
Keyword(s):  
Experimental Study ◽  
High Pressure ◽  
Surface Interactions ◽  
Surface Chemical ◽  
Aerodynamic Forces ◽  
High Pressure And Temperature ◽  
Rapid Formation ◽  
Surface Chemical Reactions ◽  
Gas Surface Interactions ◽  
Oxygen Mole Fraction

An experimental study is being conducted to determine the thermochemical mechanisms by which short duration pulses (1 to 2 ms) of high pressure and temperature gases erode steel. A ballistic compressor is used to generate the desired test gas conditions. The erosion of steel by oxygen-containing gases (e.g., air, O2/N2 mixtures) was found to be controlled by surface chemical reactions of oxygen. The erosion is linearly proportional to the oxygen mole fraction of the O2/N2 mixture. SEM examination of surfaces eroded by air, H2 and CO showed the formation of scales resulting from gas/surface interactions. It is proposed that, in general, erosion of steel results from the rapid formation of oxides on the surface followed by the removal of the oxides by the aerodynamic forces of the flow.

Proton delocalization under extreme conditions of high pressure and temperature

2007 ◽  
Vol 80 (10-12) ◽  
pp. 1051-1072 ◽  
Author(s):  
Alexander F. Goncharov ◽  
Jonathan Crowhurst
Keyword(s):  
High Pressure ◽  
Extreme Conditions ◽  
High Pressure And Temperature
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