آخرین محصولات
Coal for metallurgical coke production: predictions of coke …
For these reasons, a prediction of coke quality (shatter index and ASTM hardness factor) using Australian coals was undertaken in terms of the microlithotypes, vitrite and clarite. The method can provide useful information on coke …
Anti-coking Solution for DCU Fired Heater …
The hardness and elasticity properties of the tubes can be improved by modifying the structure and composition of the ceramic compounds and process conditions. The hardness of Tubacex's coated tubes is four times higher, while allowing …
Petcoke Fact Sheet
produce petcoke if they are refined in a refinery equipped with a coker, although the amount will vary. • Arab Medium will yield approximately 8 percent by weight as petcoke, while heavier …
TUBACOAT – An Efficient and Cost Effective
Hardness & Elasticity Coating is harder than substrate but less elastic s-e-2 4 6 8 0 2 4] 50 0 0] Base Material Ceramic coating Hardness (HV) 220 840 Elastic Modulus EIT (GPa) 140 87 Hardness and elasticity properties can be improved by modifying structure and composition of ceramic compounds and process conditions Initial transversal cracks ...
Online Monitoring and Life Extension of Coke Drums
Coke Drums Sohan S. Alva GM-Inspection, Technical Services [email protected] Vishal F. Yadav Sr. Manager-Inspection, Technical Services [email protected]. ... Hardness check 4) MPI of outside surface for ruling out OD defects. Clad removal by arc gouging without pre-heating & finish grinding CuSO4 check, PMI and DPT of the finished surface. ...
Strength Evaluation of Coke Structure by Hardness Test
Hardness of coke texture and elemental structure including coke matrix and pore was measured by micro Vickers test and Brinel test respectively. Vickers hardness of coke depends only on …
DCU Coking, Fouling, Corrosion, Erosion
• Coke laydown is time and temperature related; higher temperature, higher fouling Resid transfer piping at 325 - 550⁰F (163 - 260⁰) has low fouling (coke laydown) rates ... • Silicate catalyst is a bad actor due to high hardness, if filtered FCC Slurry Oil is present • Coke carrying through is a secondary source of erosion, but ...
Petroleum Coke: A Comprehensive Guide to Production, …
Because petroleum coke is carbon-rich, it must be stored in a dry environment. It will form a hard solid called "damp coke" if wet. It is a tricky substance that is difficult to …
IMPROVEMENTS IN LIFE EXTENSION AND DESIGN …
6 Why Coke Drums Crack - Review • Most not designed for low cycle fatigue or the compressive strength of coke, unless requested • Not designed using "Actual" measured thermal transients or stress ranges from daily operation • Fabrication practices and QA/QC are more critical • Now operating on shorter cycles (16-10 hr) and MUCH higher stresses for which they are not designed
Título de la presentación
Hardness & Elasticity Coating is harder than substrate but less elastic F = 300.000mN/20s C = ---R = Same as load increase C = ---0.2 0.4 0.6 0.8 1.0 1.2 1.4 h [µm] 50 150 250 F [mN] Base Material Ceramic coating Hardness (HV) 220 840 Elastic Modulus EIT (GPa) 140 87 Hardness and elasticity properties can be improved by modifying structure and ...
Typical Values for the Density of Petroleum Coke.
The paper includes the results of studies of the temperature effect in the range of 480-510 °C at an excess pressure of 0.35 MPa, as well as the effect of excess pressure from 0.15 to 0.55 MPa at ...
Increase reliability and profitability in delayed coking units
The unit is the only semi-continuous batch process in the refinery, which means that feed is continuously switched between two, or sometimes more than two, drums in a time-based cycle, typically 12 hours (Jaguste, 2016). ... the resid is fed into the coke drums (Figure 1, item 2) where it remains until it is thermally cracked (Sawarkar et al ...
Analysis and Characterization of High-Volatile Petroleum …
correlate well with the expected hardness and particle strength of the coke. In general, the lower the green coke volatile level, the harder is the coke and the more anisotropic. As isotropic coke ... coke heaps stored to the west of the Homs Oil refinery. The coke samples were first crushed so that 95% of the coke passed through a 4mm sieve ...
Coking
2. Carbon rejection processes. Carbon rejection technologies have been used by refineries since 1913 to upgrade various hydrocarbon feeds. These technologies include visbreaking, gasification, and coking processes. visbreaking and coking technologies can be generally applied to all residual feeds because they are not limited to constraints such as …
Calcined Coke – Marlin Energy Group
To produce the calcined coke required by specific industries such as the carbon and graphite industries, the coke must be subjected to process at high temperatures to achieve density, structure and conductivity. ... Marlin Energy Group is a market leader in managing the global supply chain of industrial, refinery and energy products. CONTACT US ...
Delayed Coking
In addition, the coke gas can be used to displace liquid and gaseous hydrocarbon fuels in the refinery process heaters and need not be used exclusively in boilers as is the case with fluid coke. As of 2014, the US fluid coking capacity was nearly 160000 bbl∕day.
Coke
Coke is a type of resource that is used in various material recipes, or in power generation at a Power Station with a Sulfuric Reactor upgrade. Coke can only be obtained by refining Coal at an Coal Refinery. Coke can be stored in a Resource Container, Container Car, or a Resource Transfer Station. Coke is only made at a Coal Refinery, with various recipes that either …
PETCOKE PETROLEUM COKE" SPECIFICATIONS
"PETCOKE – PETROLEUM COKE" SPECIFICATIONS S.NO DESCRIPTION UNITS FURNACE OIL Air Dried Basis 1. Moisture content % Wt 2.0, max 2. Ash content % Wt 1.0, max 3. Volatile Matter % Wt 11.0, max 4. Fixed Carbon % Wt 85.0, min 5. Gross Calorific Value Kcal/kg 8,200, min 6. Sulphur % Wt 7.5, max 1.
Maximizing Delayed Coker Liquid Yields
Too much coke drum overhead vapor-line quench flow will promote excessive coke drum recycle. This will diminish coker liquid yields. To set the quench rate correctly, monitor the delta T between the top of the coke drum, and the vapor line downstream of the quench injection point. This is …
Coking
Typically, coke can be divided into spherical shot coke, sponge coke, and needle coke. Using the proper feedstocks, optimal design techniques, and operating parameters, delayed coking can be used to produce needle …
Coke
Coal Refinery: 200 x Coal 3 MW of power: 180 x Coke: 00:04:30: Coal Refinery (Advanced Coal Liquefier) 300 x Coal 100L x Water 6 MW of power: 260 x Coke 60L x Heavy Oil: 00:06:45: Coal Refinery (Coke Furnace) 200 x Coal 3 MW of power: 165 x Coke 15 x Sulfur: 00:04:30
The History and Future Challenges of Calcined …
The Hardgrove Grindability Index (HGI) is a measure of hardness (lower value = harder), and the data highlight the hardness of shot coke relative to sponge coke. Independent or merchant calciners (those not integrated with …
Petroleum Coke Types, Uses and Specifications
Petroleum coke, also known as petcoke is a byproduct of the refining process of crude oil. It is a carbon-rich solid material that is used for various industrial and commercial purposes, such as fuel in power plants and …
Calcinations of Petroleum coke
controlled to insure adequate hardness of the green coke ... Coker unit in a crude oil refinery. The calcined petroleum coke is used to make anodes for the aluminum, steel and titanium ...
Guidance Document for the Storage and Handling of …
petroleum coke The solid carbonaceous material produced from a coker after cracking and distillation from petroleum refining operations. This coke is also termed "green" coke or "fuel grade" coke. 3.3 roadway Any road used for repeated travel by car, truck, or off-road mobile heavy equipment but does not mean any part of a
What is a Coke Drum? (How it Works)(Fully …
Skirt cracking is a common issue that can affect coke drums in oil and gas refineries. The skirt is the portion of the drum that supports it and connects it to the structure or foundation. Cracking in the skirt is often due to the high …
Coker Heater Optimization and Heater Fouling
path in the outlet piping to the coke drums that causes the hydraulics and reacting volume 8 May 2013 11 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0 200 400 600 800 1000 1200 0 500 1,000 1,500 2,000 2,500-ºF Linear Travel - ft Long Transfer Line - TMT Short Transfer Line - TMT Long Transfer Line - Coke Thickness Short Transfer Line - Coke Thickness n ...
The Ultimate Guide to Understanding Petroleum Cokes …
Petroleum coke — the chunky, sooty refinery by-product often stored in piles along the Detroit River that led to black, swirling clouds of misery for nearby residents a few years …
Blast Furnace Coke Hardness
Changes in coke hardness affect the working of the blast furnace, for soft coke is an obstacle to proper furnace operation. Soft coke is due to a low hydrogen-oxygen ratio in the coal charged; increasing this ratio increases the …
Critical Valve Maintenance for Petroleum Coke Processing
Industrial valve maintenance ensures that ball valves used for petroleum coke processing can operate as efficiently as possible. Petroleum coke is a byproduct of refining crude oil and has become a valuable commodity in the energy industry. Due to its extremely high temperatures, coking is one of the most severe processes in the refining industry.
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