关键词: 连续重整, 芳烃抽提, 精馏过程, 节能, 系统优化

Abstract: The revamping and optimization of energy conservation in the No.1 CCR unit of SINOPEC Jinling Company were introduced. By optimizing the reflux ratios of a series of aromatic fractionation columns and adjusting the solvent/oil ratio of the aromatic extraction system, as well as optimizing heat exchange network by adding an o-xylene/xylene heat exchanger and using low-temperature heat to heat up the demineralized water, the energy consumption of the whole unit was reduced significantly, a 419 MJ/t reduction of comprehensive energy consumption was achieved. Meanwhile, a revamping proposal for further energy conservation was put forward.

Key words: CCR, aromatic extraction, fractionating process, energy conservation, system optimization