催化裂化装置开工过程中,在气压机运行正常前,一般都会通过入口或出口放火炬来控制反应压力,此部分油气主要为C4以下组分,其中90%以上都是液态烃,造成大量的经济浪费。缩短或不放火炬时间,会为车间挽回大量的经济损失,本文结合FDFCC工艺特点,提出了FDFCC装置开工不放火炬新方法、具体实施方案、注意事项,同时更有利于节能降耗,环境保护。 During the start-up process of the FCC unit, the reaction pressure is usually controlled by the torch at the inlet or outlet before the operation of the air compressor is normal. This part of the oil and gas is mainly composed of the following C4 components, of which more than 90% are liquid hydrocarbons, resulting in a large amount of economy waste. Shorten or not put the torch time, will save a lot of economic losses for the workshop, this paper combines FDFCC process characteristics, put forward a new method of FDFCC plant torch start, the specific implementation plans, precautions, but also more conducive to energy saving, environmental protection .