Flexible buffer adsorption purification zero emission system and method

The embodiment of the invention discloses a flexible buffer adsorption purification zero emission system which comprises a condensation recovery unit, a flexible buffer unit and an oil storage tank area, the condensation recovery unit is used for recovering oil gas in the oil storage tank area, and the flexible buffer unit is used for temporarily storing gas remaining after recovery of the condensation recovery unit, and conveying gas to the oil storage tank area when oil storage unloading and air temperature reduction are carried out in the oil storage tank area. According to the scheme, the purification efficiency is improved, the operation cost is reduced, meanwhile, zero emission of evaporated oil gas in the oil storage tank area is achieved, oil gas evaporation loss caused by large and small breathing in the oil storage tank area is thoroughly eliminated, and potential safety hazards and pollution to the surrounding atmospheric environment are eliminated. 本发明实施例公开了一种柔性缓冲吸附净化零排放系统，该系统包括：冷凝回收单元、柔性缓冲单元以及储油罐