Characteristics of Asphaltenes Thin Film Extracted from Crude-Oil-Tank-Bottom-Sludge (COTBS)

2019 ◽  
Author(s):  
Sundarajoo Thulasiraman ◽  
Noor Mona Md. Yunus ◽  
Pradeep Kumar ◽  
Zainal Arif Burhanudin ◽  
Cecilia Devi Wilfred ◽  
...  
Keyword(s):  
Thin Film ◽  
Crude Oil ◽  
Oil Tank ◽  
Tank Bottom

Extraction of Hydrocarbons from Crude Oil Tank Bottom Sludges using Supercritical Ethane

2007 ◽  
Vol 42 (10) ◽  
pp. 2327-2345 ◽  
Author(s):  
Marco Antonio Ávila‐Chávez ◽  
Rafael Eustaquio‐Rincón ◽  
Joel Reza ◽  
Arturo Trejo
Keyword(s):  
Crude Oil ◽  
Oil Tank ◽  
Tank Bottom

Assessing the hydrocarbon degrading potential of indigenous bacteria isolated from crude oil tank bottom sludge and hydrocarbon-contaminated soil of Azzawiya oil refinery, Libya

2014 ◽  
Vol 21 (18) ◽  
pp. 10725-10735 ◽  
Author(s):  
Abdulatif A. Mansur ◽  
Eric M. Adetutu ◽  
Krishna K. Kadali ◽  
Paul D. Morrison ◽  
Yuana Nurulita ◽  
...  
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Oil Refinery ◽  
Indigenous Bacteria ◽  
Oil Tank ◽  
Tank Bottom

An effective soil slurry bioremediation protocol for the treatment of Libyan soil contaminated with crude oil tank bottom sludge

2016 ◽  
Vol 115 ◽  
pp. 179-185 ◽  
Author(s):  
Abdulatif A. Mansur ◽  
Mohamed Taha ◽  
Esmaeil Shahsavari ◽  
Nagalakshmi Haleyur ◽  
Eric M. Adetutu ◽  
...  
Keyword(s):  
Crude Oil ◽  
Soil Slurry ◽  
Oil Tank ◽  
Tank Bottom

scholarly journals Energy and Resource Utilization of Refining Industry Oil Sludge by Microwave Treatment

2020 ◽  
Vol 12 (17) ◽  
pp. 6862
Author(s):  
Chien Li Lee ◽  
Cheng-Hsien Tsai ◽  
Chih-Ju G. Jou
Keyword(s):  
Crude Oil ◽  
Microwave Power ◽  
Petroleum Refining ◽  
Microwave Treatment ◽  
Field Energy ◽  
Oily Sludge ◽  
Sludge Sample ◽  
Volatile Hydrocarbons ◽  
Benzene Toluene ◽  
Oil Tank

The oily sludge from crude oil contains hazardous BTEX (benzene, toluene, ethylbenzene, xylene) found in the bottom sediment of the crude oil tank in the petroleum refining plant. This study uses microwave treatment of the oily sludge to remove BTEX by utilizing the heat energy generated by the microwave. The results show that when the oily sludge sample was treated for 60 s under microwave power from 200 to 300 W, the electric field energy absorbed by the sample increased from 0.17 to 0.31 V/m and the temperature at the center of the sludge sample increased from 66.5 °C to 96.5 °C. In addition, when the oily sludge was treated for 900 s under microwave power 300 W, the removal rates were 98.5% for benzene, 62.8% for toluene, 51.6% for ethylbenzene, and 29.9% for xylene. Meanwhile, the highest recovery rates of light volatile hydrocarbons in sludge reached 71.9% for C3, 71.3% for C4, 71.0% for C5, and 78.2% for C6.

Failure of the Crude-Oil Tank Induced by Two Independent Corrosion Processes

2013 ◽  
Vol 577-578 ◽  
pp. 529-532 ◽  
Author(s):  
Jiří Sís ◽  
Bedřich Votava
Keyword(s):  
Corrosion Rate ◽  
Failure Analysis ◽  
Crude Oil ◽  
Weld Joint ◽  
Heat Affected Zone ◽  
Low Cycle Fatigue ◽  
Basic Material ◽  
Cycle Fatigue ◽  
Concrete Base ◽  
Oil Tank

Corrosion processes are frequent reasons of failure of materials in many applications. Results of failure analysis of the crude-oil tank after more than 30 years of service are summarized in this work. The failure was caused by two different and independent corrosion processes – corrosion in crude oil inside the tank and corrosion from concrete base under the tank. Both corrosion processes usually occur equally over the whole surface. In this case, however, both the corrosion processes occurred with distinctly higher corrosion rate in basic material alongside of heat affected zone of weld joint as well. The crack with length about 420 mm was the final result of these processes. The effect of low-cycle fatigue from filling and draining of crude oil is usually significant and was discussed as well.

Analysis of the Influences of Soil Parameters on the Settlement of Storage Tank Foundation

2011 ◽  
Vol 90-93 ◽  
pp. 372-376
Author(s):  
Xu Dong Zhang ◽  
Shuai Wang ◽  
Ran Gang Yu
Keyword(s):  
Permeability Coefficient ◽  
Storage Tank ◽  
Compression Modulus ◽  
Soil Parameters ◽  
Foundation Soil ◽  
Consolidation Settlement ◽  
Water Filling ◽  
Oil Tank ◽  
Tank Bottom ◽  
Main Factor

The settlement characteristics of storage tank foundation at water-filling preloading stage and stable loading stage was analyzed based on numerical simulation. And the influences of foundation soil parameters on the settlement of storage tank foundation were studied. The research results show that Uplift appears at the place 1.3D away from the center of oil tank bottom, and the final uplift value is 10mm.The main factor which influences the consolidation speed of storage tank foundation is permeability coefficient. The consolidation settlement is determined by compression modulus and load.

scholarly journals Activated Flooded Jets and Immiscible Layer Technology Help to Remove and Prevent the Formation of Bottom Sediments in the Oil Storage Tanks

2021 ◽  
Author(s):  
Georgii V. Nesyn
Keyword(s):  
Crude Oil ◽  
Bottom Sediments ◽  
External Heat ◽  
Storage Tanks ◽  
High Molecular Weight Polymer ◽  
Molecular Weight Polymer ◽  
Oil Storage ◽  
Screw Propeller ◽  
Fit For Purpose ◽  
Tank Bottom

Two flooded jet methods of tank bottom sediments caving based on either screw propeller generation or nozzle jets generated with entering crude head oppose each other. The comparison is not advantageous for the first one. Exceptionally if crude oil contains some concentration of high molecular weight polymer which can perform Drag Reduction. In this case, the jet range increases by many times, thus, upgrading the capability of caving system. Preventing the sedimentation of crude oil heavy components may be put into practice with Immiscible Layer Technology. Before filling the tank with crude oil, some quantity of heavy liquid, that is immiscible with all the components of crude oil, is poured into the tank. The most suitable/fit for purpose and available liquid is glycerin. Neither paraffin and resins, nor asphaltenes can penetrate through the glycerin layer to settle down at the tank bottom because of its density, which is equal to 1.26 g/cm3. Instead, sediments are concentrated at/on the glycerin surface and when it is heated in external heat exchanger all the sediments ought to move upwards with the convection streams. Thus, no deteriorate sediment is formed in the tank bottom.

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