【HaiChuan – Lessons from Others】Qilu Petrochemical has installed new flare gas recovery compressors to capture more flare gas

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Qilu Petrochemical’s newly installed flare gas recovery compressor comes online 2019-02-14 Source: Sinopec News Network Print article Petrochemical news Recently, the newly installed flare gas recovery compressor for the olefin plant at Qilu Petrochemical was put into operation after going through procedures such as individual testing, purging, airtightness checks, and air-interlocked testing; it started working successfully on the first attempt, marking the commissioning of this new flare gas recovery compressor. Through continuous optimization of feedstock usage, the cracking units in the olefin plant use natural gas as the primary fuel; as a result, methane emissions increase, exceeding the processing capacity of the 2 flare gas recovery compressors. A new flare gas recovery compressor must be installed to meet the requirements and improve the capacity for recovering flare gas. The flare gas recovery compressor in the cracking unit is a key energy-saving project for olefin plants. Once the newly installed compressor comes online, its processing capacity is 1.6 times that of the two previous recovery compressors; this allows for the recovery of more flare gas, which can then be fed into the fuel gas mainline, thereby reducing the fuel gas consumption of the entire ethylene plant. (Sun Wanzhang)