Coal tar is commercially utilized as a___________________?
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Answer: D. All A , B. and C.
Explanation
Coal tar functions as an adhesive binder to hold loose coal particles together in briquette production. Liquid coal tar acts as a heavy fuel binder and carbon source inside high temperature rotary kilns. Carbonization of coal tar produces pitch that binds aggregate particles when manufacturing carbon electrodes. Coal tar is a viscous black liquid byproduct obtained during the destructive distillation of bituminous coal. It is a complex mixture of thousands of different aromatic organic compounds and heterocyclic molecules. Fractional distillation of coal tar yields valuable chemical raw materials like benzene, naphthalene, and phenol.
Metallurgical industries utilize coal tar pitch binders to produce durable anodes for aluminium smelting cells. Coal briquetting plants use it to convert fine coal dust into manageable fuel blocks for burning. Refining coal tar supports numerous downstream chemical industries producing dyes, resins, and pharmaceuticals. Isolating only binder applications ignores its simultaneous use as a fuel source in kilns. Stating it is only used as a kiln fuel overlooks its vital role as an electrode binder. Limiting its description to briquette binding ignores its widespread utility in electrode manufacturing.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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