B) Mention (Feed stocks, operation condition and process, Products) for the following: • FCC • Isomerization • CCR • Coking 40M Question : ) Make A comparison for the following: 1 Coil Visbreaker and Soaker Visbreaker 2 Delyaed coker and The Flexicoker 3 Semiregenerative and Continuous regenerative .

10. A process as claimed in claim 9, wherein the velocity of the steam in the second coking column is kept in the range of 4 to 14 feet/sec. 11. A process as claimed in claim 1, wherein the first and second coking and distillation columns may be physically same, but the operations are carried out in two different modes. 12.

Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air—a destructive distillation process. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.. The unqualified term "coke" .

The process. Delayed coking is a semibatch cyclic process that thermally cracks a variety of residual oil feeds into light gases, naphtha, diesel, heavy gas oil and petroleum coke. The heart of delayed coking technology is the furnace, in which a mixture of oil and steam is superheated in a short residence time environment such that coking in ...

The process. Delayed coking is a semibatch cyclic process that thermally cracks a variety of residual oil feeds into light gases, naphtha, diesel, heavy gas oil and petroleum coke. The heart of delayed coking technology is the furnace, in which a mixture of oil and steam is superheated in a short residence time environment such that coking .

Sep 18, 1997 · The mechanism of coking pressure generation I: Effect of high volatile matter coking coal, semianthracite and coke breeze on coking pressure and plastic coal layer permeability. Fuel 2010, 89 (7), .

Apr 16, 2013 · Process Description • Delayed coking is a semi continuous process in which the heated charge is transferred to large coking drums which allow the long residence time needed to allow the cracking reactions to proceed to completion feed to these units is normally heavy atmospheric residues, although heavy alytic cycle oils and cracked tars ...

The problem is simply this – it is a semibatch process. Part of the process is continuous, and part of the process is batch. In a typical two drum delayed coker, one coke drum is filling, and ...

Coal Washing is a process of separation mainly based on difference in Specific Gravity of Coal and associated impurities like Shale, Sand Stones etc so that we get relatively pure marketable coal without changing its physical properties. ... 2015 B. SEMI COKING COAL Grade Parameter Semi Coking I Ash + moisture < 19 % Semi Coking II Ash ...

Product: Fixed Carbon: Ash: Volatile Matter: Sulfur: Phosphorus: Moisture: Semicoke （1835mm）: 84% Min. 9% Max. 7% Max. % Max. % Max. 15% Max. Semicoke ...

Mar 01, 2004 · In this work, the possibility of using such waste materials as binders in a partial briquetting process for metallurgical coke production is explored. By means of this coking procedure, a strong metallurgical coke not inferior in quality to coke from conventional coal blends is produced at pilot and semiindustrial scales.

The main division is between "coking" coal and "energy or steaming" coal. Coking coals, used to make coke for use in blast furnaces, have particular properties which allow it to form a good coke when put through a coking process which involves heating in an atmosphere deficient in oxygen.

2) As a byproduct of direct reduction process under. the C/Fe ratio of, the fixed carbon content of SF. semicoke reaches 1% and the gross calorific value. of SF semicoke is MJ/kg ...

Industrial wastewater could be an important source for the emission of volatile (VOCs) and semivolatile organic compounds (SVOCs), but little is known about it. In this study, a method for the identifiion and quantitation of 43 VOCs and SVOCs in coking wastewater was developed using a solventfr .

Oct 15, 2006 · Investigation of bonding mechanism of coking on semicoke from lignite with pitch and tar

Mathematical Modeling of the Carbon Burnout Process from the Shale Semicoke Surface of Aerofountain Technological Furnace in the Solid Heatcarrier Oil Shale Semicoking Scheme By Selivanov, Batrakov, Mrakin and Morev

Sep 10, 2020 · In this work, the treatment of biotreated coking wastewater (BCW) by alytic ozonation was conducted in semibatch and continuous flow reactors.

Coking coals within the rank range – % reflectance are considered prime coking coals if the ash content is < % and sulphur approximates %. Coal such as this is the most expensive and coke manufacturers try and reduce costs by using coals classed as soft coking (make a weaker coke) and semisoft coking (are weakly coking.

Delayed Coking Process . The feed to the delayed coking process consists of atmospheric or vacuum residuum and is introduced into a fractionator where it is heated and the lower boiling fractions flash off. The fractionator bottoms, including a recycle stream of heavy product, are heated in a furnace to cracking temperature (900° F.950° F.).

A high coking value pitch with a relatively low softening point is disclosed. A pitch is distilled or thermally processed to produce an intermediate pitch with an increased coking value and relatively high softening point, then blended with a cutter solvent of a liquid hydrocarbon stream to form a product pitch. The process may be used to increase the coking value of either petroleum or coal ...

Global Coking Coal Market by Semisoft Coking Coal (SSCC), (USD Million) ... The process of market research at Syndie Market Research is an iterative in nature and usually follows following path. Information from secondary is used to build data models, further the results obtained from data models are .