Flow characteristics and morphology of hydrate slurry formed from (natural gas+diesel oil/condensate oil+water) system containing anti-agglomerant

2012 ◽  
Vol 84 ◽  
pp. 333-344 ◽  
Author(s):  
Bao-Zi Peng ◽  
Jun Chen ◽  
Chang-Yu Sun ◽  
Abhijit Dandekar ◽  
Shao-Hui Guo ◽  
...  
Keyword(s):  
Natural Gas ◽  
Water System ◽  
Flow Characteristics ◽  
Diesel Oil ◽  
Oil Water

Evaluating and Testing of Gas Hydrate Anti-Agglomerants in (Natural Gas + Diesel Oil + Water) Dispersed System

2014 ◽  
pp. 381-386
Author(s):  
Chang-Yu Sun ◽  
Jun Chen ◽  
Ke-Le Yan ◽  
Sheng-Li Li ◽  
Bao-ZiPeng ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Hydrate ◽  
Diesel Oil ◽  
Dispersed System ◽  
Oil Water

Investigation of hydrate plugging in natural gas+diesel oil+water systems using a high-pressure flow loop

2017 ◽  
Vol 158 ◽  
pp. 480-489 ◽  
Author(s):  
GuangChun Song ◽  
YuXing Li ◽  
WuChang Wang ◽  
Kai Jiang ◽  
Xiao Ye ◽  
...  
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Diesel Oil ◽  
Water Systems ◽  
Flow Loop ◽  
Pressure Flow ◽  
Oil Water

scholarly journals The Separation of Emulsified Water/Oil Mixtures through Adsorption on Plasma-Treated Polyethylene Powder

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1086
Author(s):  
Asma Abdulkareem ◽  
Anton Popelka ◽  
Patrik Sobolčiak ◽  
Aisha Tanvir ◽  
Mabrouk Ouederni ◽  
...  
Keyword(s):  
Droplet Size ◽  
Contact Time ◽  
Diesel Oil ◽  
Polluted Water ◽  
Order Kinetic ◽  
Atmospheric Conditions ◽  
Sonication Time ◽  
Oil Concentration ◽  
Oil Water ◽  
Emulsified Water

This paper addresses the preparation and characterization of efficient adsorbents for tertiary treatment (oil content below 100 ppm) of oil/water emulsions. Powdered low-density polyethylene (LDPE) was modified by radio-frequency plasma discharge and then used as a medium for the treatment of emulsified diesel oil/water mixtures in the concentration range from 75 ppm to 200 ppm. Plasma treatment significantly increased the wettability of the LDPE powder, which resulted in enhanced sorption capability of the oil component from emulsions in comparison to untreated powder. Emulsions formed from distilled water and commercial diesel oil (DO) with concentrations below 200 ppm were used as a model of oily polluted water. The emulsions were prepared using ultrasonication without surfactant. The droplet size was directly proportional to sonication time and ranged from 135 nm to 185 nm. A sonication time of 20 min was found to be sufficient to prepare stable emulsions with an average droplet size of approximately 150 nm. The sorption tests were realized in a batch system. The effect of contact time and initial oil concentrations were studied under standard atmospheric conditions at a stirring speed of 340 rpm with an adsorbent particle size of 500 microns. The efficiency of the plasma-treated LDPE powder in oil removal was found to be dependent on the initial oil concentration. It decreased from 96.7% to 79.5% as the initial oil concentration increased from 75 ppm to 200 ppm. The amount of adsorbed oil increased with increasing contact time. The fastest adsorption was observed during the first 30 min of treatment. The adsorption kinetics for emulsified oils onto sorbent followed a pseudo-second-order kinetic model.

scholarly journals New insights into the mechanisms of ultrasonic emulsification in the oil-water system and the role of gas bubbles

2021 ◽  
pp. 105501
Author(s):  
W.H. Wu ◽  
D.G. Eskin ◽  
A. Priyadarshi ◽  
T. Subroto ◽  
I. Tzanakis ◽  
...  
Keyword(s):  
Water System ◽  
Gas Bubbles ◽  
Ultrasonic Emulsification ◽  
Oil Water

scholarly journals STUDIES ON PROTEIN-OIL-WATER SYSTEM IN KAMABOKO-V

1960 ◽  
Vol 26 (12) ◽  
pp. 1167-1170
Author(s):  
Tuneo IKEUTI ◽  
Wataru SIMIDU
Keyword(s):  
Water System ◽  
Oil Water

scholarly journals Numerical and Experimental Investigation of Combustion and Knock in a Dual Fuel Gas/Diesel Compression Ignition Engine

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
A. Gharehghani ◽  
S. M. Mirsalim ◽  
S. A. Jazayeri
Keyword(s):  
Natural Gas ◽  
Diesel Oil ◽  
Combustion Characteristic ◽  
Simultaneous Increase ◽  
Dual Fuel ◽  
Compression Ignition ◽  
Swirl Ratio ◽  
Characteristic Analysis ◽  
Mode Of Operation ◽  
Intake Pressure

Conventional compression ignition engines can easily be converted to a dual fuel mode of operation using natural gas as main fuel and diesel oil injection as pilot to initiate the combustion. At the same time, it is possible to increase the output power by increasing the diesel oil percentage. A detailed performance and combustion characteristic analysis of a heavy duty diesel engine has been studied in dual fuel mode of operation where natural gas is used as the main fuel and diesel oil as pilot. The influence of intake pressure and temperature on knock occurrence and the effects of initial swirl ratio on heat release rate, temperature-pressure and emission levels have been investigated in this study. It is shown that an increase in the initial swirl ratio lengthens the delay period for auto-ignition and extends the combustion period while it reduces NOx. There is an optimum value of the initial swirl ratio for a certain mixture intake temperature and pressure conditions that can achieve high thermal efficiency and low NOxemissions while decreases the tendency to knock. Simultaneous increase of intake pressure and initial swirl ratio could be the solution to power loss and knock in dual fuel engine.

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