Abstract
A new system for final cooling of coke-oven gas has been installed in the byproduct-capture shop of the coke plant at Durgapur Steel Plant (India). This system, designed by AO VUKhIN under a contract with Bengal Tools Limited (now BTL EPC, India), also removes naphthalene from the gas and ensures the absorption and distillation of benzene. The main design features are outlined. The treatment technology for the coke-oven gas is described; along with the organization of the final cooling and the removal of naphthalene, the trapping of phenolic hydrocarbons by petroleum absorbent, and the distillation of absorbing oil. This system ensures the specified quality of the products—purified coke-oven gas and raw benzene.
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