(PDF) Study of coke by X-ray structural analysis and
Needle coke was recognized as one of the most important precursor to produce ultra-high power graphite electrode, commercial anode materials for lithium-ion battery, and …
Effects of Needle Coke Conductive Additive on the …
In order to a detailed study of the affects of the contents of β resin on the properties of needle coke, 8 types of refined coal pitch (the fa range from 0.9621 to 0.9725) with varied contents of ...
Petroleum Coke Petroleum Coke
The standards apply to both imported and domestic petroleum coke, which are used as common-power graphite electrodes, carbon raw materials and fuels for aluminum, etc. Needle-shaped coke meets the requirements of the standards of GB/T 37308-2019 for "Oil-based Needle Coke" and T/ZGTS 002-2019 for "Oil-based Needle Coke for Graphite ...
Needle Coke Market Size, Share 2024 | Showing Impressive …
The Needle Coke Market Research Report provides in-depth historical research as well as comprehensive market projections broken down by types, applications, and geographical outlook for the years ...
A kind of production method of needle coke
The invention discloses a kind of production methods of needle coke, comprising the following steps: S2, takes out solvent and maltha according to the ratio of 1:1.5-2, and isolates light phase and heavy phase after mixing；S3, the heavy phase obtained in S1 is heated to 150-200 DEG C, it is introduced into tube furnace after separating water in dehydrating tower, by diamond …
HS Code 27131200
- A shipment of 10,000 tons of calcined petroleum coke in bulk ( grain size 0.5-1mm) for steel production - 200 bags of 25 kg each of calcined petroleum coke (spherical shape, 1-5mm diameter) for use in metal refining - 3,000 kg of calcined petroleum coke in powder form ( particle size 0.1-0.3mm) for use in ceramics
Effects of Needle Coke Conductive Additive on the …
The needle coke (NC) as a conductive additive was studied on effects of treated by ball milling on the electrical conductivity, mechanical property of the composite plates. All the …
Methods for modifying needle coke raw materials by …
Needle coke, commonly used in the production of high-power graphite electrodes for steel production in electric furnaces, is a scarce product in the refining and by-product coke industry. ... the addition of polystyrene was shown to have a favourable effect on the shape of crystallites. ... Role of quinoline insoluble particles during the ...
Effect of coke orientation on the electrochemical properties …
Needle coke and regular coke were selected as raw materials and pulverized to 2–25 μm to determine the effects of crystalline properties on particle shape after pulverization.
Improved discharge capacities for lithium-ion batteries …
SEM analysis was used to identify the shapes of the needle coke particles as a function of the ozone treatment time, and the images are shown in Fig. 2. As shown in Fig. 2, all samples showed the stacked layer structure commonly found in needle cokes, and the particle sizes were 10–20 μm . As the ozone treatment time increased, the surfaces ...
The charge/discharge mechanism of soft carbon …
The needle coke (NC) as a conductive additive was studied on effects of treated by ball milling on the electrical conductivity, mechanical property of the composite plates.
Use of image processing for the measurement of coke particle shape
Made available by U.S. Department of Energy Office of Scientific and Technical Information ...
Particle size distribution of green cokes.
Download scientific diagram | Particle size distribution of green cokes. from publication: Development of a Novel Shaft Dryer for Coal-Based Green Needle Coke Drying Process | The industry of coal ...
Methods for modifying needle coke raw materials by …
This transformation, accompanied by a 12% volume increase and a 4.6° unit cell shape change, is analogous to the tetragonal-to-monoclinic transformation in zirconia. Due to the processing methods used, previous studies into the particle size effect were limited by a wide range of particle size distribution.
Effects of Needle Coke Conductive Additive on the Performance …
Figure 3a shows the surface morphology of the original needle coke NC−A with an average particle size of 250 μm, it can be clearly seen that needle coke is a kind of oval silver gray porous solid with metallic luster, and its surface is obviously elongated needle like or fibrous texture, which is basically consistent with the previous ...
Preparation of particle electrodes for landfill leachate …
X-Ray Diffraction (XRD) results showed that Zn 0.7 Ni 0.15 Cu 0.15 Fe 2 O 4 in the shape of cubic spinel with the main peak at (311). ... Preparation of Fe-loaded needle coke particle electrodes ...
Structural Analysis of Needle Coke | Coke and Chemistry
Abstract Industrial needle-coke samples from different producers are investigated by X‑ray diffraction and scanning electron microscopy. Their structural parameters La and Lc are determined, and their microstructure is investigated. A relation is observed between the structural parameters and morphology of the coke particles. Given the consistency of the results …
US3704224A
US3704224A US77735A US3704224DA US3704224A US 3704224 A US3704224 A US 3704224A US 77735 A US77735 A US 77735A US 3704224D A US3704224D A US 3704224DA US 3704224 A US3704224 A US 3704224A Authority US United States Prior art keywords coke graphite weight petroleum coking Prior art date Legal status (The legal status is an …
Highly conductive, hierarchical porous ultra-fine carbon …
Here, the treated ultra-fine needle coke particles (UNCs) are introduced in hierarchical porous ultra-fine carbon fibers by electrospinning and thermally treatment process of two immiscible polymers and UNCs precursor. ... Fascinatingly, the shape of CV curves showed very slightly deformation, revealing an excellent rate capability at high scan ...
Effect of coke orientation on the electrochemical properties of lithium
Needle coke and regular coke were selected as raw materials and pulverized to 2–25 μm to determine the effects of crystalline properties on particle shape after pulverization. Needle coke with ...
From GPC to CPC: A Century of Calcined Coke Evolution and …
Shot Coke: Characterized by a spherical particle shape and a dense, highly isotropic texture, shot coke tends to have a high CTE (>5.5) and typically higher levels of sulfur and trace metal ...
CN101776547A
The invention relates to a method for easily and quickly evaluating needle coke. In the method, material to be evaluated is placed in a container, and the container is placed in a pyrolysis reactor; the temperature of the pyrolysis reactor is increased to 460 DEG C to 520 DEG C at the heating rate of 1 DEG C/min to 20 DEG C/min, and after the temperature is kept for one to two hours, …
Structure and Texture of Industrial Coke Samples: A …
In the baked needle coke particles, packets of layers are separated by slot-like pores; in the unbaked particles, amorphous sponge-like microstructure is seen. ... It determined by optical microscope analysis of its particle shape: the score assigned ranges from zero for completely isotropic coke (shot coke) to seven for anisotropic needle coke ...
Treatment of bio-treated coking wastewater in a 3DEF …
The Fe-NCPEs were prepared by impregnation and calcination method (the mass of Fe 2+ is 2.5 % of the mass of needle coke). Particle electrodes with a radius of about 2.5 mm were made from PTFE and Fe-loaded needle coke (1:4 in mass) and under nitrogen atmosphere calcined at 350 °C for 3 h with nitrogen atmosphere to obtain the Fe-NCPEs.
Automatic analysis and detection method and detection device for needle
According to customer needs, coke particle size is an important indicator to measure product quality, currently, in order to meet the user's coke particle size requirements, only a mobile vibrating screen can be used for screening, and the batching and delivery will be carried out according to the method of matching needle coke with different ...
Effects of Needle Coke Conductive Additive on the …
The needle coke (NC) as a conductive additive was studied on effects of treated by ball milling on the electrical conductivity, mechanical property of the composite plates. All the characterizations showed that after ball milling, the NC particles have smaller particle size, and more uniform particle size distribution, which enhanced
Structural Analysis of Needle Coke
Structural Analysis of Needle Coke Z. R. Ismagilova, b, *, S. A. Sozinova, **, A. N. Popovaa, ***, ... whose size and shape depend on the raw material and the coking and roast-ing conditions [13, 20–23]. For example, on holding ... crushed coke samples (~3-mm particles) are prepared. An image of the coke particles is obtained in secondary ...
Difference between calcined coke and petroleum coke
Needle coke in petroleum coke is mainly used for high-power graphite electrodes, and sponge coke is mainly used in the steelmaking industry and carbon industry. ... From the appearance, coke is a black block (or particle) with irregular shapes and different sizes, with a metallic luster. The particles of coke have a porous structure. The main ...
Influence of coke particle characteristics on the compaction …
Belitskus [5] confirmed that spherical coke particles pack better than plate-like or needle-like ones, thus even particles with more porosity may result in a higher vibrated bulk density. ... The enhancing effect of particle shape of shot coke on the compacted density of anodes was expected and reported in another work [7]. The influence of ...
Effect of coke orientation on the electrochemical …
In this paper, to investigate the eect of coke orienta-tion on the crystallization properties and electrochemical performance of graphite, needle coke and regular coke with dierent crystallinities and orientation characteristics were selected as raw materials. To examine the eect of crystal properties on the particle shape in regard to possible raw
Effect of crystallinity and particle size on coke-based …
Needle coke and regular coke were selected as raw materials and pulverized to 2–25 μm to determine the eects of crystalline properties on particle shape after pulveriza-tion. Needle …
Effects of Needle Coke Conductive Additive on the …
The experimental results show that needle coke as an auxiliary conductive filler can enhance the flexural strength of the composites by improving the interfacial adhesion between particles and phenolic resin after dry and wet …
(PDF) Study of coke by X-ray structural analysis and
Particles of calcined needle coke were formed by lamellae packs, between which there were slit-like pores, and the structure of particles of "raw" coke had an amorphous spongy microstructure.
Structure and Texture of Industrial Coke Samples: A …
In X-ray structural analysis, we use a Bruker D8 ADVANCE A25 instrument (CuKαradiation, with an Ni filter in the secondary radiation) at room temperature, by the polycrystalline method. A large accumulation time (2 s) is used in recording the diffraction patterns; the scanning …