Determining CRI and CSR for Coke | Coke and Chemistry
Coke quality is currently assessed in terms of the moisture content, sulfur content, ash content, and mechanical strength, as well as the coke reactivity (CRI) and coke strength after reaction with CO 2 (CSR).The CRI and CSR values are determined by a method developed by Nippon Steel (NSC) [].. The requirements on coke quality for blast-furnace use are fairly …
IS 1448-130 (1988): Methods of test for petroleum and …
of calcined petroleum coke [PCD 1: Methods of Measurement and Test for Petroleum, Petroleum Products and Lubricants] 1s : 1448 [ P : 130 ] - 1988 Adopted 21 September 1988 Indian Standard ... When the following crushing pro- cedure is used, contributions to VBD from both as-calcined and laboratory crushed particles ( which may differ ...
Coke crusher/coke mill
2. Coke Feed: The prepared coke is then feed into the coke crusher. The feed can be in the form of lumps or fines, depending on the desired output size and the subsequent use of the coke. 3. Crushing: The coke crusher, which can be a jaw crusher, cone crusher, impact crusher, or hammer mill, reduces the size of the coke to the desired ...
What equipment is needed for crushing coke?
Crushing coke, which is a carbonaceous material produced by the carbonization of coal, typically involves several steps to reduce its size for various applications. The equipment needed for …
Lecture 32: Coke production
At first Bituminous coal is crushed and screened to a certain size. Preheating of coal (at 150-250 ̊C) is done to reduce coking time without loss of coal quality. Briquetting increases strength of …
The fracture characteristics and enhancement mechanism of crushing …
High-strength coke is essential to the ironmaking and steelmaking industries. The crushing strength of coke could be improved effectively when the hot pressing technique is carried out with proper parameters. The fracture characteristics and enhancement mechanism of crushing strength for the coke with hot pressing were investigated by experiment and finite element …
Influence of Crushing Technology and Particle Shape on …
Confirm the laboratory crushing method/shape/bulk density correlations at a plant scale, including efforts to make the linkage between different plant crushing methods and coke shape/aggregate packing/anode density. Include anode butts in the study.
Influence of Selective Crushing and Particle Shape of Shaft …
Prior studies investigated the impact of coke parameters (open and closed porosity, real density, particle size, shape, and size distribution) on bulk density, and looked at methods to modify the particle shape of anode aggregate material through various crushing techniques [2, 3].To achieve this, the Run of Kiln (ROK) coke, material as received from the supplier, was …
Method for Calcined Petroleum Coke Evaluation to …
particles but can be seen after little hammering or crushing. The macro porosities in sponge coke allow good pitch penetration during mixing and lead to a mechanically strong ... Method for Calcined Petroleum Coke Evaluation to Improve the Anode Quality 1097. isotropic structure. It is also very likely that CPC will consist
Vibrated Bulk Density (VBD) of Calcined Petroleum Coke …
the current ASTM International (ASTM) method D4292 generates a wide range of VBD data. Therefore, Oxbow Calcining investigated the VBD procedure - D4292. Issues with D4292 include the use of the appropriate crushing equipment, crushing of the gross sample, sieving of the prepared sample, determination of
Determining the Strength of Coke under Crushing …
the furnace. The method used to determine the coke's ability to withstand abrasive and impact forces has been codified in GOST State Standards (in terms of the strength indices M 25, M 40, and M 10). However, there is no standard method for assessing the ability of the coke to withstand crushing forces. To address that deficiency,
(PDF) Crushing properties of coal
The Hardgrove grindability index HGI is closely related to the power consumed in crushing coal and may be used to optimize crushing in the coal-preparation shops at coke plants, as shown in [1] [2 ...
Influence of Crushing Technology and Particle Shape on …
the coke packing behaviour that influences anode density. Bhattacharyay et al. [11] used a simple Image Analysis method to study the size and shape of coke and butts par-ticles. They found that butts were less round and more irregular than coke. In a study of coke and anode properties, Lubin et al. [12]
COKE CRUSHING CHARACTERISTICS
coke from the crushing tests are plotted against tumbler stability in figure 2. Even though sizing results are scattered, very definite trends are shown for both screen- ings and the plus 1/2-inch sizes. Although it is hard to assign values to the amount of dust produced when crushing small samples of coke, visual observations were made.
Effect of Iron Particles on the Coke Solution Loss Reaction
The influence mechanism of iron particles loaded by the addition method on the coke reaction can be explained from the following two points. (1) The structure of coke is affected by adding iron particles, so as to improve the solution loss reaction of coke. In the process of coal coking, colloids are produced, and the isotropic liquid gradually ...
HEAVY OIL REFINING—2 (Conclusion): Analysis
The coke-crushing impeller option allows continuous operation but increases fines to the heater and downstream systems where they can cause erosion, coke seeds for tube coking, and foaming in the ...
11.4 Calcium Carbide Manufacturing
coke and lime; coke dryer - coke; tap fume vent - coke and lime; furnace room vent - coke and lime; crusher - calcium carbide; charging conveyor - coke and lime. NA = not applicable. ND = no data. Neg = negligible. SCC = Source Classification Code. b Filterable PM is that collected on or before the filter of an EPA Method 5 (or equivalent ...
Coal and Coke Analysis
Besides the chemical analysis of cokes, there are required the "Crushing resistance," "Porosity," and "Specific Gravity." For information concerning these tests, and the more accurate methods of estimating the calorific power, consult Stillman's Engineering Chemistry and Poole's Calorific Power of Fuels.
Co-pyrolysis of coal with biomass residues and coke breeze …
Finite element method was used to study the fracture characteristics of coke. Abstract. Superior quality coke is essential in the metallurgical industry. ... Coke with higher crushing strength is more challenging to break into coke fine and could effectively support the burden column in a blast furnace [13]. Enhancement of crushing strength ...
CASE STUDY Coker pump design
The coke that remains in the drum is periodically removed and during this process the feed material is directed to another drum. Once the coke has been steamed and cooled, high pressure water jets are used to loosen the coke and wash it out of the bottom of the drum. Jet cutting pumps are high pressure units, around 4'300
The fracture characteristics and enhancement mechanism of crushing …
The finite element method was used to study the coke's crushing strength and fracture characteristics. The fracture of coke was simulated by Abaqus with the brittle cracking model. The Rankine criterion was used to detect crack initiation. This criterion states that a crack forms when the maximum principal tensile stress exceeds the material's ...
CN114507536A
The invention discloses a coal blending method for improving the crushing strength of coke, which comprises the following steps: selecting gas coal, lean coal, 1/3 coking coal 1#, 1/3 coking coal 2#, fat coal and coking coal, wherein the fat coal is selected from any one of the following combinations: the method comprises the following steps of 1# fat coal and 3#, 1# fat coal and …
12.2 Coke Production
Coke manufacturing includes preparing, charging, and heating the coal; removing and cooling the coke product; and cooling, cleaning, and recycling the oven gas. Coal is prepared for coking by …
ISO 18283:2022(en), Coal and coke ? Manual sampling
This document provides the basic terms used in manual sampling of coal and coke and describes the general principles of sampling. It provides procedures and requirements for establishing a manual sampling scheme, methods of manual sampling, sampling equipment, handling and storage of samples, sample preparation and a sampling report, and applies to manual …
Co-pyrolysis of coal with biomass residues and coke breeze …
The hot-pressed cokes have high crushing strength when the blending ratio of biomass or breeze is appropriate. Biomass and breeze were mixed with the coking coal with different blending ratios. The coke crushing strength is shown in Fig. 3. The crushing strength of coke is 2.61 MPa when coal is coked without pressing.
Effect of Coal Size on Coking Pressure and Coke Strength
Focusing on the fine crushing of coal to achieve them, we investigated the reduction of the coking pressure by a selective fine crushing of high-coking pressure coal and the effect of fine …
INTERNATIONAL STANDARD 18283
ISO 687, Solid mineral fuels — Coke — Determination of moisture in the general analysis test sample ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth ISO 13909-7, Hard coal and coke — Mechanical sampling — Part 7: Methods for determining the precision of
COKE CRUSHING CHARACTERISTICS
Coke fines can be kept at a minimum by choosing the proper coal, or coal blend, and by using a coke crusher designed to produce a minimum of screenings. A combination of the proper coal …
Crushing Equipment for Petroleum Coke Plant | by feng li
1. Application Material: Petroleum Coke 2. Feed size: ≤200mm Moisture ≤5% 3. out size: 325mesh(D97), particle size can be adjusted. 4. Output: shot coke 3t/h-4t/h ; sponge coke 4t/h-5t/h 5 ...
Crushing
The power to crush or deform people or objects no matter their constitution. Compression Crashing Crippling Crumpling Crunch Crush Pressure Smashing Squish The user is able to easily crush and/or deform almost any object …