Device with 120 thousand tons / year of the oxidative dehydrogenation of butene to butadiene (hereinafter referred to as the device) torch process gas emission system accounting, and expounds the design process of torch gas emissions accounting system, including the torch tube accounting, discharge air line diameter determination, liquid tank structure design, and ultimately determine the reasonable scheme of the torch device gas emission.%结合12万吨/年丁烯氧化脱氢制丁二烯装置(以下简称本装置)火炬气排放系统工艺核算,阐述火炬气排放系统核算的设计过程,包括火炬筒体的核算、装置排放气管线管径的确定、分液罐的结构尺寸的设计要点,最终确定本装置火炬气排放的合理方案.
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