coke zone Tertiary air injections at calcining zone provide a combustion boost to utilize the volatiles coming off the petcoke and generate the heat required for the calcining process Green Coke Feed Material Flow Gas Flow Heat up Zone Calcining Zone Calcined Coke Zone Calcined Coke to Cooler Natural Gas & Air Flow Vigorous Combustion Zone .
The petroleum coke calcination system is mainly composed of the original coke silo conveying, calcination system, afterburner, dust removal system and cooling systemThe green coke feed from the material soil into the rotary kiln,through the 1200℃ calcining 40 min,after the calcined coke putinto the rotary cooler,the cooler exhausted air .
Coke Calcining Plants - HarbisonWalker International
Coke-calcining plants receive green petroleum coke from oil refineri The green coke is blended and fed into rotary kilns operating up to 2800°F under a reducing condition The material exits the rotary kiln as calcined coke with a correct crystalline structure and electrical conductivity properti
US Patent Application for Vertical Calcined Petroleum Coke ,
Nov 18, 2010· 1 A system for calcining petroleum coke comprising (a) a kiln for calcining coke having a coke feed end and a calcined coke discharge end and arranged for the passage of heated kiln gases therethrough countercurrent to the travel of coke.
Calcined Coke - albasmelter 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
US3823073A - Calcining coke in vertical kiln - Google Patents
a new method of calcining coke in a vertical kiln in two zones to shorten the kiln residence time and to provide efficient heat transfer to the coke particl green coke is dried, preheated and fed to a choking zone of a vertical klin for calcining in suspension with countercurrent flow of asceding flue gas, ten further calcined in a free all zone of the kiln by contact with ascending .
Coke Calcining Systems Brochure - Corporation - PDF ,
Two coke calciners in Bahrain KVS Coke calcining systems provides systems and equipment for thermal processing of solid materials such as ores, minerals, bulk granular chemicals, agricultural products, and waste materials to change their physical and/or chemical properti
While not necessary, calciners can be accompanied by a cooling system, designed to quickly cool a material down from the high temperatures experienced during the process, making it easy to quickly package and distribute the end feed for re-use Some examples of calcining applications include:
Petroleum coke calcining systems Petroleum coke calcining is thermal treatment of green petroleum coke to beneficiate the material by removing moisture and volatile matter, while increasing density and decreasing electrical resistivity Calcined petroleum coke is mainly used to produce anodes used in the aluminum industry for smelting aluminum .
Project Report on CALCINED PETROLEUM COKE (CP COKE) 50,000 ,
This coke can either be fuel grade (high in sulfur and metals) or anode grade (low in sulfur and metals) The raw coke directly out of the coker is often referred to as green coke In this context, “green” means unprocessed The further processing of green coke by calcining in a rotary kiln removes residual volatile hydrocarbons from the coke
The refining process also produces coke, which is comprised of primarily carbon Refineries typically produce green coke, which is coke that contains some amount of remnant impuriti In order to make a more marketable product, green coke can be purified through a process known as coke calcining Rule 9-14 aims to address SO 2
Performance of Dry Flue Gas Desulfurization on a Petroleum ,
covered storage building, from raw storage to the kiln feed hood, and from the calcined coke coolers to product storage bins The materials handling system can accommodate rail or truck deliveries and shipments Coke calcining occurs in a horizontal, counter-current, gas-fire d rotary kiln Th e kiln is arrange with th raw cok
US4251323A - Method for calcining delayed coke - Google ,
4 The process of claim 1 wherein the green coke feed rate is from 10 to 15 tons per day per square foot of kiln cross section, the combustion air introduction rate is from 25 to 40 mols per ton of dry green coke feed, the recycle gas rate is from 85 to 100 mols per ton of dry green coke feed, the coke moving through the kiln is maintained at a calcining temperature of from 2400° to 2800 .
The History and Future Challenges of Calcined Petroleum ,
Dec 20, 2014· Calcined petroleum coke is used for the production of carbon anodes in the Hall-Héroult aluminum smelting process due to a combination of low impurity levels, , CPC is produced by heating or calcining green petroleum coke (GPC) at temperatures greater than 1200°C , but modern ones have automated feed and discharge systems, .
coke calcining operating parameters, be it residence time, temperature gradient, and heat up rate all of which impac, t product quality Product Quality KVS’ coke calcining systems can produce a quality product specification from sponge, needle, shot, fluid or tar pitch cok The real and vibrated bulk densities are optimized
Subpart Y Coke Calcining Unit Information - Cal e-GGRT ,
To add or update CO 2, CH 4, and N 2 O emissions information for a coke calcining unit that is NOT monitored by CEMS OR CH 4 and N 2 O emissions information for a coke calcining unit that is monitored by CEMS, locate the COKE CALCINING UNIT-LEVEL EMISSION SUMMARY table on the Subpart Y Overview page, and click OPEN Step 1
This petroleum coke can either be fuel grade (high in sulphur and metals) or anode grade (low in sulphur and metals) The raw coke from the coker is often referred to as green coke In this context, "green" means unprocessed The further processing of green coke by calcining in a rotary kiln removes residual volatile hydrocarbons from the coke
How it works Coke calcining plants can be located in oil refineries, captive plants in aluminum smelters or merchant plants Rotary Kiln The petroleum green coke is fed into a refractory lined rotary kiln where the volatiles are driven off during the calcining process in an oxygen deficient atmosphere
Profitable Calcining of Non-Calcinable Pet Coke - R&D Carbon green coke with high VCM (12 – 16%) contents can be calcined The resulting calcined coke properties are excellent, with high densities, low resistivity and very coarse grain siz
In this context green means unprocessed the further processing of green petcoke by calcining in a rotary kiln removes residual volatile hydrocarbons from the coke the calcined petroleum coke can be further processed in an anode baking oven in order to pro Chat Online
Project Report on CALCINED PETROLEUM COKE - Manufacturing ,
Green coke with low metals content is referred to as anode grade coke The green coke with too high metals content will not be calcined and is used for burning This green coke is called fuel grade coke Petcoke is over 90 percent carbon and emits 5 to 10 percent more carbon dioxide (CO2) than coal on a per-unit-of-energy basis when it is burned
Other coke calcining units must either install a CEMS that complies with the Tier 4 Calculation Methodology in subpart C of this part, or follow the requirements of paragraph (g)(2) of this section (2) Calculate the CO 2 emissions from the coke calcining unit using Equation Y-13 of this section
process for calcining coke Process for calcining coke - Koa Oil Company, Limited- process for calcining coke , Process for calcining green coke in at least three heating stages, which comprises preheating the green coke in the first stage, preliminarily calcining ,Annealing, Sintering and Calcining Processes - CM Furnaces Inc Annealing .