What are the requirements for the raw materials of needle coke?
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From a molecular structure perspective, which type of structure is more suitable? Monocyclic aromatics, bicyclic aromatics, tricyclic, or more rings? Is it better to have side chains or not? What are the requirements for sulfur, nitrogen, and metal contents? Seeking advice.
Personal understanding: From a molecular structure perspective, polycyclic aromatics are more suitable; tricyclic and tetracyclic structures are the best, and those without side chains are preferable to those with side chains.
1. Rich in aromatic components (polycyclic and high-molecular-weight aromatics are excluded); 2. Low in asphaltenes; 3. Low in S, N, and metal impurities; 4. Coal-derived needle coke QI