calcined petroleum coke rate using method

FUZZY GREY RELATIONAL ANALYSIS FOR INFLUENCE FACTORS ON THE QUALITY OF CALCINED PETROLEUM COKE

Real density and powder resistivity are key indiors for the quality of calcined petroleum coke (CPC). They are closely related to calcining parameters in shaft calciner. Fuzzy grey relational analysis was proposed to evaluate the effects of various factors 2 8

Method for calcining delayed coke (Patent) | OSTI.GOV

Delayed petroleum coke is calcined in an internally-fired vertical shaft kiln. A downwardly-moving bed of green coke is preheated in the top of the kiln by rising coustion gases, then heat soaked at calcining temperatures in the intermediate section of the kiln, and finally cooled by recycle gas moving upwardly from the lower part of the kiln.

Microstructure and physical-chemical properties of petroleum coke …

tion of carbon is 80-90% and when calcined petroleum coke is used, utilization is 60 - 70%. The results of microstructure examination of analysed coke are shown in figures 1 and 2. Macrostructure of coke discovered by using a stereo microscope (Fig. 1) is

Fluid Coke - an overview | ScienceDirect Topics

7.6 Petroleum Coke. When petroleum is refined, there are residues left behind that are processed into coke to yield either delayed coke or fluid coke. In the delayed coking process, various petroleum feedstocks, including vacuum and pyrolysis residues and decant oils heated to about 450°C are pumped into a drum and held for 24 hours (Adams, 1997).

Modeling and simulation of petroleum coke …

A one-dimensional mathematical model was developed for the simulation of petroleum coke calcination in rotary kilns. The model is comprised of 14 ordinary differential equations derived from mass

The History and Future Challenges of Calcined …

2014/12/20· Calcined petroleum coke is used for the production of carbon anodes in the Hall-Héroult aluminum smelting process due to a coination of low impurity levels, ready availability, and relatively low cost. This article provides a review of the history and use of calcined petroleum coke for anode production and describes the different calcining technologies used by the industry. The article

Petroleum Coke - an overview | ScienceDirect Topics

Petroleum coke can be fired in coination with coals or heavy oils in circulating fluidized bed boilers; alternatively, it can be fired as the sole fuel. Some examples of petroleum coke firing in fluidized bed boilers are shown in Table 5.16. Other examples of CFB

Method for calcining delayed coke (Patent) | OSTI.GOV

Delayed petroleum coke is calcined in an internally-fired vertical shaft kiln. A downwardly-moving bed of green coke is preheated in the top of the kiln by rising coustion gases, then heat soaked at calcining temperatures in the intermediate section of the kiln, and finally cooled by recycle gas moving upwardly from the lower part of the kiln.

AJE

Over several decades, calcined petroleum coke producers and the aluminum industry have been using various techniques such as Vibrated Bulk Density (VBD), Mercury Intrusion Porosimetry (MIP), and Mercury Apparent Density to predict the porosity of

Microstructure and physical-chemical properties of petroleum coke …

tion of carbon is 80-90% and when calcined petroleum coke is used, utilization is 60 - 70%. The results of microstructure examination of analysed coke are shown in figures 1 and 2. Macrostructure of coke discovered by using a stereo microscope (Fig. 1) is

Effect of calcination rate on petroleum coke properties …

1995/1/1· The excellent work of Bui, Perron, and Read studied several process parameters pertinent to the calcination of green petroleum coke and the subsequent effect on calcined coke properties. One parameter studied was a calcination rate that was comparatively fast.

ASTM D7454 - 08 Standard Test Method for …

1.1 This test method covers the determination of bulk density of a representative 2-kg sample of calcined petroleum coke, after vibration to increase compaction, using a semi-automatic apparatus. 1.2 The procedure is applied, but not limited, to particles passing through a 4.75-mm opening sieve and retained on a 1.18-mm opening sieve.

Real-time monitoring of efficient grinding and blending of petroleum coke

petroleum coke Abstract Calcined petroleum coke is an essential component of carbon anodes. Method All trials were carried out on an automatic coined disc mill/ pelletizer of the type HP-MP using a 100 ccm tungsten carbide grinding vessel. The

Petroleum Coke - an overview | ScienceDirect Topics

The project will process petroleum coke from the refinery at a rate of 1,235 short tons per day. The product slate includes 457 barrels per day (b/d) of finished F-T wax, 125 b/d of diesel, 35 b/d of naphtha, and 55 MW of electricity for sale. Other salable products include steam, sulfur, nitrogen, and oxygen.

US4251323A - Method for calcining delayed coke - …

Partially cooled calcined coke is recovered from the bottom of the kiln. Delayed petroleum coke is calcined in an internally-fired vertical shaft kiln. A downwardly-moving bed of green coke is

Real-time monitoring of efficient grinding and blending of petroleum coke

composition of coke can be determined by using different methods including atomic-absorption, atomic -emission and X ray fluorescence spectrometry (XRF). The XRF is a procedure which is simple to carry out and delivers reliable quantitative results of

Modeling and Simulation of Petroleum Coke …

2015/10/13· The model can be divided into two main parts (1) heterogeneous reacting flow of petroleum coke calcination in the pot was simulated using a two-fluid model approach where the gas and solid phase are treated as a continuous phases; and (2) the standard turbulence equations coined with the finite rate/eddy-dissipation coustion model and discrete ordinates model were solved for the …

CHARACTERIZATION OF PETROLEUM COKE AND BUTTS USED IN …

CHARACTERIZATION OF PETROLEUM COKE AND BUTTS USED IN ANODE MANUFACTURING IN ALUMINUM INDUSTRY Arunima Sarkar 1, Duygu Kocaefe , Yasar Kocaefe , Dipankar Bhattacharyay , Brigitte Morais 2, Martin Pouliot 2 1University of Quebec at …

Method for measuring the coefficient of thermal …

A method for measuring the coefficient of thermal expansion of calcined petroleum coke involves pressing a sample of the calcined coke with a binder pitch to form a pellet and baking the pellet at a temperature of at least 800 DEG C. The coefficient of thermal expansion of the pellet is then measured.

AJE

Vibrated Bulk Density (VBD) of calcined petroleum coke is widely utilized as one measure of quality and is useful for quantifying binder demand in the anode production process of the aluminum reduction industry. ASTM D 4292-10 is one of the methods used widely by the carbon and aluminum reduction industries to measure VBD.

Influence of coke structure on coke quality using …

2018/11/22· Porosity values of coke samples varied from 45.5 to 52.9% with standard deviation between 5.8 and 9.9 (Table 5) was observed in image analysis method. For each coke samples, 20 nuers of frames have been captured and it was found that the porosity

Petroleum coke - Wikipedia

The calcined petroleum coke can be further processed in an anode baking oven to produce anode coke of the desired shape and physical properties. The anodes are mainly used in the aluminium and steel industry. Petcoke is over 80% carbon and emits 5% to 10% more carbon dioxide (CO 2) than coal on a per-unit-of-energy basis when it is burned.

ASTM D7454 - 19 Standard Test Method for …

1.1 This test method covers the determination of bulk density of a representative 2 kg sample of calcined petroleum coke, after vibration to increase compaction, using a semi-automatic apparatus. 1.2 The procedure is applied, but not limited, to particles passing through a 4.75 mm opening sieve and retained on a 1.18 mm opening sieve.

Influence of coke structure on coke quality using …

2018/11/22· The image analysis method shows total area, length, perimeter, roundness, pore-wall thickness and porosity (vol%) of each sample. Porosity values of coke samples varied from 45.5 to 52.9% with standard deviation between 5.8 and 9.9 (Table 5) was observed in image analysis method.

Method for calcining delayed coke - Conoco, Inc.

1. A process for calcining delayed petroleum coke in an internally-fired vertical shaft kiln comprising: (a) feeding particulate green delayed petroleum coke at a rate of from 0.5 to 2.5 tons per day per square foot of kiln cross section into the top of a vertical shaft

Modeling and simulation of petroleum coke …

A one-dimensional mathematical model was developed for the simulation of petroleum coke calcination in rotary kilns. The model is comprised of 14 ordinary differential equations derived from mass

Conversion of petroleum coke into valuable products …

2018/3/1· Petroleum coke (petcoke), one of these residues, is a solid-rich carbon typically produced during the upgrading of heavy oil and delay coking of vacuum residue in the refinery. Finding an alternative technique to treat this massive amount of petcoke is highly needed as the conventional processes like gasifiion and coustion have limitations in terms of efficiency and environmental …

Microstructure and physical-chemical properties of petroleum coke …

tion of carbon is 80-90% and when calcined petroleum coke is used, utilization is 60 - 70%. The results of microstructure examination of analysed coke are shown in figures 1 and 2. Macrostructure of coke discovered by using a stereo microscope (Fig. 1) is

Production and Appliion of Calcined Coke In Rotary Kilns …

Calcined coke is the best material for making carbon anodes for smelting of alumina to aluminum. Petroleum coke is usually calcined in a gas-fired rotary kiln or rotary hearth at high temperatures, around 1200 to 1450 C, to remove moisture, drive

Determination of L in calcined petroleum coke according to …

Calcined Petroleum Coke (CPC) is produced from “green” petroleum coke, which is a byproduct of oil refining. the crystallite size in CPC samples using Rietveld’s method with MAUD and JADE as well as according to ASTM D5187. Find out more at All rights