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 …
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 ...
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 …
Supplier Results for Coke Suppliers Coke Suppliers
Manufacturer and processing of calcined petroleum coke. Available in particle sizes ranging from 20 meshes to 3 microns. ... petroleum coke, pitch coke, needle coke, calcined coke, fluid coke & shot coke. Carbon coke is available in powder, scrap, pellet or custom particle shape forms. Other carbon materials such as carbon raisers ...
The charge/discharge mechanism of soft carbon …
This result is also observed in the X-ray diffraction pattern ( Figure S1), in which regular coke has lower crystallinity than that of graphite or needle coke [21]. Particle size distribution was ...
Preparation of Fe-loaded needle coke particle electrodes …
In this study, a novel iron-loaded needle coke particle electrode was fabricated for the first time using the sintering method, and exhibited good hardness and reusability. The 3DEF system constructed with Fe-NCPEs as the suspended particle electrode was highly effective at removing pollutants from coking wastewater, expressed …
Effects of Needle Coke Conductive Additive on the …
volatile, it further shows that NC A is a high-purity needle coke, and it also shows that NC A has an excellent electrical conductivity and good particle passing rate under 100 mesh …
Investigation on shot-coke-forming propensity and controlling of coke
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. ... It has been revealed that particle shape is an important factor determining the packing properties and compacted density. A temperature-programmed ...
(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.
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
What is needle petroleum coke?
The needle petroleum coke has obvious stripes on the surface, and the pores inside the focal block are arranged in a slender oval shape, which is broken into slender particles, which can be used as raw materials for …
Needle Coke
China Needle Coke wholesale - Select 2024 high quality Needle Coke products in best price from certified Chinese Steel manufacturers, Iron Steel suppliers, wholesalers and factory on Made-in-China.com ... Shape: Grains or Granular. Material: Anthracite Coal,Petroleum Coke and Graphite. Usage: Metallurgy Industry. ... Particle Size: 0 …
C Calcined Needle Coke
China C Calcined Needle Coke wholesale - Select 2024 high quality C Calcined Needle Coke products in best price from certified Chinese C Profile Steel manufacturers, C Steel Channel suppliers, wholesalers and factory on Made-in-China.com. Home. Metallurgy, Mineral & Energy.
Effect of crystallinity and particle size on coke-based anode …
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 outstanding crystallinity had high initial efficiency, and smaller particles with larger specific surface areas saw increased irreversible capacity ...
Effects of Needle Coke Conductive Additive on the Performance …
Due to the difference in shape and size between the auxiliary conductive filler and flake graphite, the addition of NC particles can easily fill the gap between flake-like graphite and phenolic resin. ... And the optimal GCP-NC−C plate was prepared by wet milling needle coke particles displayed excellent conductivity and flexural strength ...
US20150353701A1
The present invention discloses expandable vinyl aromatic polymers comprising platelet needle coke particles having a polymodal particle size distribution wherein (about) 45% or more of the total amount of particles has a diameter comprised between (about) 3 μm and (about) 20 μm and wherein (about) 40% or less of the total amount of particles ...
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 …
Influence of Crushing Technology and Particle Shape on …
particles can give tighter packing than platelike or needle like particles and will give a higher bulk density even when the real density and particle porosity are the same. He also ... coke particle shape, and what is the impact of coke particle shape on bulk density? These two questions can be unified in
Effect of coke orientation on the electrochemical properties …
As a result, regular coke, having a random orientation, shows an irregular particle shape and a random particle arrangement. In contrast, needle coke, having …
(PDF) Study of coke by X-ray structural analysis and
Electron microscopic images of coke particles: anisotropic (elo ngated) particle shape (a); ... The invention provides a stock oil composition for needle coke for …
CN109504416A
The invention discloses a kind of production technologies of coal-based needle coke, comprising the following steps: S1, takes out coal tar and low temperature coal tar pitch, solvent according to the ratio of 6-8:3-4:0.5-1, and is uniformly mixed, is so settled, obtain light phase and heavy phase；S2, light oil is prepared；S3, light oil is mixed with coal …
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. …
Electrochemical properties of R-1300, N-1300, R-2700, N …
This result is also observed in the X-ray diffraction pattern ( Figure S1), in which regular coke has lower crystallinity than that of graphite or needle coke [21]. Particle size distribution was ...
Influence of coke particle characteristics on the compaction properties
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. Sverdlin et al. [6] reported that irregular shape and rough surface of coke particles up to 12 mm prevented the movement in a viscous medium. Edwards et …
Coke Particle
Field's model [155] is also a typical kinetic/diffusion-limited rate model (Eq. 54).In Field's model, a coke particle is considered to be spherical and surrounded by a stagnant boundary layer through which O 2 or CO 2 diffuse before they react with the coke. The reaction is determined by both the rate of diffusion to the surface, k d, and the rate of …
Filterability prediction of needle-like crystals based on particle …
The determination of the two-dimensional particle size and shape distributions of the produced populations has been performed using an ex situ, stereoscopic imaging apparatus, referred to as the flow through cell (FTC) [16], [36]; its schematic representation is shown in Fig. 1.Briefly described, particles flowing through a sapphire …
Influence of particle shape on the rheological behavior …
1. Left: SEM images of the used PCC powders with different particle shapes: (a) plate-shaped, (b) spherical, (c) scalenohedral, (d) needle-shaped. Black dots in the background of the images result from sample preparation. Right: Particle size analysis of the used PCC powders. Differential particle size distribution q3 and sum distribution Q3 were
Treatment of bio-treated coking wastewater in a 3DEF …
As one of the most representative hard-to-biodegrade industrial wastewater, coking wastewater is poor in biodegradability and has a high concentration of organic matter. Consequently, even after treatment using biochemical technology, the discharge standards cannot be reached. We used the self-developed Fe-loaded needle coke electrodes (Fe …
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 …
Effect of Particle Shape on Dry Particle Inhalation: Study of
where ρ s = 1 g/cm 3, d g is the particle geometric diameter, ρ e is the effective particle density in the same unit as ρ s, and λ is the dynamic shape factor of the particle (1,2,4).This shape factor is defined as the ratio of the drag force of the particle to that of a sphere of equivalent volume ().Increasing particle surface roughness would …