calcination of needle coke

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QUALITY ANALYSIS OF PETROLEUM COKES COALS FOR ,

Feedstocks, needle coke precursors, are characterized by low API gravity, low asphalene content, and a high degree of aromaticity [SIGenerally hydrocarbon streams are used with low sulfur content catalytic cracker slurry oils, tars derived fiom the thermal cracking of refinery gas oils, hydrodesulfUrized catalytic cracker slurry oils, and coal tar pitch...

Method for the production of needle coke (Patent) | OSTIGOV

Method for the production of needle coke Full Record; Other Related Research; Abstract Coal tar pitch is liquified at temperature of from about 135 to 280/sup 0/ C The liquid coal tar pitch is filtered through a sieve with apertures from about 100 to 220 mu M and with a closed surface area of at least 75 percent of the total sieve surface ....

ScientificNet: Materials Science

Abstract: The effects of calcination on preparation of needle coke were studitiedThe relationship between structureand and property of needle coke that was prepared under calcination were characterized by SEM,XRD and FT-IR analysisThe results indicated that the effect of calcination on the preparation of needle coke was positive.The higher temperature of caclineing and the longer time of ....

STUDY ON PHYSICAL-CHEMICAL PROPERTIES OF ,

2 Study on physical-chemical properties of petroleum cokes 977 black, having porous, amorphous structure; and needle coke, not used in anode production is silver-gray, having crystalline broken needle structure, and...

Needle coke - definition of Needle coke by The Free Dictionary

Needle coke synonyms, Needle coke pronunciation, Needle coke translation, English dictionary definition of Needle coke n Coke that is produced as a byproduct of petroleum refining, used as an industrial fuel and in the manufacture of iron and steel, anodes for aluminum....

High Quality Graphite Electrodes For Sale - RS ,

You Can Buy High Quality Graphite Electrodes For Sale From RS, A Professional Refractory Manufacturer&Supplier Contact Us For Free Quote!...

Coking | » Seadrift Coke LP

The additional drying step passes a superheated gas through the coke bed to reduce volatile material and harden the coke Seadrift Coke is more than just a coker We also operate a rotary kiln for calcination of the needle coke prior to shipment, a waste heat boiler with a steam driven cogeneration unit for production of electrical power, and a ....

What will be the upcoming growth in the Needle Coke market?

Needle coke is a high grade, high value, petroleum or coal-based coke It is primarily employed in the manufacture of graphite electrodes of very low coefficient of thermal expansion for electric arc furnaces in the steel industry...

Global Needle Coke Market to Reach around US$ 518 Bn by ,

Production of petroleum derived needle coke involves specific feedstock, calcination settings, and coking environments The hardware apparatuses engaged are similar to that of conventional delayed ....

Method for producing needle coke - Google Patents

A method is provided for producing needle coke comprising the steps of heating green needle coke at temperatures between about 875° F and about 1,200° F for between about 10 minutes and about 24 hours, and, without first allowing the temperature of the coke to cool below about 250° F, calcining the green needle coke at calcination temperatures above about 2,000° F...

Needle Coke Market to expand at a CAGR of 48% from 2018 ,

Needle Coke is a premium grade, high-value, petroleum coke employed in the manufacture of graphite electrodes of very low thermal expansion coefficient for the electric arc furnaces in the steel industry...

Calcined Coke - Aluminium Bahrain (Alba)

Calcined petroleum coke is the major raw material required for the production of carbon anodes used in the aluminium smelting process Green coke (raw coke) is the product of the coker unit in a crude oil refinery and must possess sufficiently low metal content in order to be used as anode material...

Preparation of needle coke from petroleum by-products

Preparation of needle coke from petroleum by-products , Needle coke is a specific type of coke with a high level of graphite resulting from its microcrystalline structure A high , material continues to calcination to stabilize the coke by a temperature of around 1000°C It possesses solid concentrat-...

1 INTRODUCTION - UPSpace

1-3 Low air and carboxy reactivity of the coke during calcination (Hippo and Walker, 1975) and (Walker et al, 1983) Feedstocks historically utilised for needle coke production include Coal-Tar Pitch (CTP)....

Effects Of Calcination Upon Properties Of Needle-cokes

The effects of calcination on preparation of needle coke were studitiedThe relationship between structureand and property of needle coke that was prepared under calcination ,...

Table 10 shows typical ultimate analysis of green ,

Calcination of the green coke has traditionally been carried out in a single stage rotary kiln Use of the Marathon rotating hearth process, Petrol Chimie vertical kiln (PC), more as a desulphurizing calciner and electric calcination have also been reported (Reis, 1975)...

Regular Power Graphite Electrode Sales - Rongsheng Refractory

Using petroleum coke and needle coke as raw materials, coal asphalt as binder, graphite electrode is made through the production process of calcination, compounding, kneading, pressing, roasting, graphitization and machining, which is the conductor that releases electric energy in the form of electric arc in electric arc furnace to heat and melt the furnace charge...

QUALITY ANALYSIS OF PETROLEUM COKES COALS FOR ,

Feedstocks, needle coke precursors, are characterized by low API gravity, low asphalene content, and a high degree of aromaticity [SIGenerally hydrocarbon streams are used with low sulfur content catalytic cracker slurry oils, tars derived fiom the thermal cracking of refinery gas oils, hydrodesulfUrized catalytic cracker slurry oils, and coal tar pitch...

Calcination of petroleum coke in rotary-hearth furnace

TABLE 1 Coke Raw Ordinary Needle Calcined Ordinary Needle moisture 8,2 11,9 0,01 0,02 Content, 070 volatile ash matter 10,4 0,48 8,0 0,35...

Profitable Calcining of Non-Calcinable Pet Coke - R&D Carbon

Profitable Calcining of Non-Calcinable Petroleum Coke Dr Ulrich Mannweiler, Mannweiler Consulting, Zürich, , production or as needle coke for steel electrod Besides of the impurities, the content of Volatile , In Table 1 the properties of green coke for shaft kiln calcination versus Rotary Kiln calcination are compared...

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The manufacturing process of coal-based needle coke includes pretreatment of raw material, delayed coking and calcination Because the medium coal-tar pitch used as ,...

CHARACTERIZATION OF GREEN AND CALCINED COKE ,

a mixture of shot and needle cokes; and needle coke (not used in anode production) is silver- gray, haviug crystalline broken needle structure, and chemically produced through cross linking of condensed aromatic hydrocarbons during coking reactions [3,4]...

2001: SULFUR RETENTION DURING CARBONIZATION OF ,

SULFUR RETENTION DURING CARBONIZATION OF DECANT OIL AND CALCINATION OF SEMI-COKE Guohua Wang and Semih Eser , decant oils are the primary feedstock to the delayed coker to produce highly graphitizable precursor the needle coke The quality of needle coke ,...

Effects of Coke Breeze and Shot Coke - About Pettroleum ,

In recent years, the content of coke breeze in petroleum coke has an increasing trend, especially the content of fine coke breeze below 1 mm directly affects the calcination of petroleum coke and the production of carbon anode...

Petroleum coke calcining -

Petroleum coke calcining is a three step process, including drying, devolatization and densification The coke calcining process is a time-temperature function, conducted in an oxygen deficient atmosphere...

Calcined Petroleum Coke - Oxbow

Calcined Petroleum Coke is a critical ingredient in the production of aluminum It is created by placing high quality raw "green" petroleum coke into rotary kilns, where it is heated to temperatures between 1200 to 1350 degrees C (2192 to 2460 F)...

Fuel Grade Non Calcined Petroleum Coke | Products ,

Needle coke, also called acicular coke, is a highly crystalline petroleum coke used in the production of electrodes for the steel and aluminium industries and is particularly valuable because the electrodes must be replaced regularly...

Petroleum coke - Wikipedia

Needle coke, also called acicular coke, is a highly crystalline petroleum coke used in the production of electrodes for the steel and aluminium industries and is particularly valuable because the electrodes must be replaced regularly...

Needle Coke Market to Reach US$4,4243 mn by 2025 ,

Nov 22, 2017· Production of needle coke involves specific feedstocks, coking environments, and calcination settings The hardware components employed are similar to ,...

NEEDLE COKE TECHNOLOGY - Iocl

Needle coke is a premium grade petroleum coke, which is used in manufacturing of graphite electrodes for arc furnaces in steel industry A good quality of needle coke is , feedstocks, coking conditions and calcination conditions The hardware employed is similar to that of Delayed Coker unit Heavier...