Needle coke is a black graphite-like substance, which is mainly composed of graphite microcrystals. Gather together. It looks like a pile of long black needles because this is named ''needle coke''.
Generally speaking, the longitudinal dimension of needle coke can It can reach hundreds of microns, and the transverse size is several microns, showing a typical Graphite-like morphology.
volatile matter | 9.54-11% |
ash | 0.15-2.4% |
moisture | 0.87-7.1% |
sulfur content | 0.24-6% |
The preparation method of needle coke is relatively complicated. Common preparation methods include Electrochemical oxidation stripping, pyrolysis and carbothermal reduction of ink-based materials Decomposition method, etc.
Among them, carbothermal reduction decomposition method is the most widely used at present. One of the preparation methods. In this method, needle-like graphite deposits are placed Placed in a high-temperature plasma furnace for pyrolysis.
Due to its high specific surface area and Good electrical conductivity, needle coke shows excellent performance in electrochemical system. Excellent performance. This petroleum coke for sale can be used as battery negative electrode, supercapacitor negative electrode.
Extremely and so on. In addition, in petroleum refining, metallurgy and chemical industries, Needle coke can also be used as catalyst carrier material.
