Results 171 to 180 of about 1,887,880 (207)
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DEPOSIT FORMATION IN INDUSTRIAL DELAYED COKER/ VISBREAKER HEATERS
Petroleum Science and Technology, 1998ABSTRACT In order to investigate fouling parameters indicative of the propensity of a furnace charge to form deposits in commercial coker/ visbreaker heater, 30+ processed furnace charge streams from more than 20 plant deposits were studied In general, about 90% of the deposits formed appear to be due to coke formation, and approximately 5% is due to ...
H. K. Lemke, W. K. Stephenson
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Coke bed structure in a delayed coker
Carbon, 2000The porous structure of the coke bed in a delayed coking reactor is investigated in order to understand how flow channels are formed and how the cooling water distributes during the quench stage of the reactor cycle. Tomography, gas expansion, pycnometry and mercury injection are performed in an attempt to associate the bed characteristics with the ...
A.C Silva +3 more
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Determination of Service Life for Undamaged and Damaged Delayed Coker Drums
Volume 3: Design and Analysis, 2016A stated goal of governments in addressing climate warming and to transition to a low carbon future by the end of this century is to increase the proportion of energy supplied by alternative sources. For the hydrocarbon processing industry, the question of stranded assets will become significant as these alternative energy sources become more prevalent.
Vincent A. Carucci, John J. Aumuller
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Corrosion Fatigue Performance of Materials in Delayed Cokers and Coker Blowdown Piping System
CONFERENCE 2024Abstract Very often the current body of knowledge and literature of fatigue performance in coke drums and blowdown piping system are linked to fatigue testing performed in air or in water. This paper summarizes the test results that were conducted using process fluids collected from a delayed coker.
Haixia Guo +4 more
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Energy & Fuels, 2017
Delayed coking is the technology most used to upgrade vacuum residue into high-value products, but in this process, secondary reactions produce coke. It is already known that the chemical and physical properties and composition of the feedstock and processing conditions affect coke morphology. Recently, a new type of morphology, called transition coke,
Naydu P. Zambrano +5 more
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Delayed coking is the technology most used to upgrade vacuum residue into high-value products, but in this process, secondary reactions produce coke. It is already known that the chemical and physical properties and composition of the feedstock and processing conditions affect coke morphology. Recently, a new type of morphology, called transition coke,
Naydu P. Zambrano +5 more
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Catalytic Coprocessing of Delayed Coker Light Naphtha with Light Straight-run Naphtha/FCC Gasoline
Petroleum Science and Technology, 2010Abstract Upgrading of delayed coker light naphtha (DCLN) is difficult due to its high diolefin and silicon content. Mixtures of light straight-run naphtha (LSRN) and DCLN fractions were hydrotreated in two stages over NiMo/Al2O3 and CoMo/Al2O3 catalysts (diolefin saturation followed by hydrodesulphurization (HDS).
S. Magyar +3 more
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Delayed Coker Furnace Fouling Control – Laboratory Correlation to Field Experience
CORROSION 2008, 2008Abstract The problem of fouling is treated from three points of view; laboratory, plant, and economic. A laboratory apparatus, which simulates a furnace operating in a fouling mode, is discussed and test results are given for real situations. Two fouling problems, which occur in operating refinery furnaces, are evaluated with and without
Paul E. Eaton, Jeff Williams
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Energy & Fuels, 2007
The present study was carried out using the microcarbon residue (MCR) test to investigate the mechanism by which vanadium- and nickel-containing additives cause a dramatic reduction in mosaic size in coke from delayed coker feeds. Since a fine mosaic microtexture is one of the key characteristics of shot coke, these additives have the potential to ...
Simon R. Kelemen +7 more
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The present study was carried out using the microcarbon residue (MCR) test to investigate the mechanism by which vanadium- and nickel-containing additives cause a dramatic reduction in mosaic size in coke from delayed coker feeds. Since a fine mosaic microtexture is one of the key characteristics of shot coke, these additives have the potential to ...
Simon R. Kelemen +7 more
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Extraction Treatment of Delayed Coker Heavy Gas Oil with N-Methylpyrrolidone
Russian Journal of Applied Chemistry, 2021A. V. Kameshkov +3 more
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Evaluation of Alternative Control Strategies for Delayed Coker by Dynamic Simulation
1988 American Control Conference, 1988Jack Davis +2 more
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