Molecular formula: C₃H₈. It is an important energy source commonly used as fuel for barbecues, portable stoves, and motor vehicles. Currently, with the development of industry, propane has gradually become an important petrochemical raw material.

This product adopts low-temperature absorption, pressure reduction and temperature rise analysis, and segmented distillation technology to comprehensively recover propane from the tail gas of the butanol octanol unit. The product meets the quality indicators of industrial propane No. 95 in the industry standard "SH/T0553-1993 (2005) Industrial Propane and Butane": propane ≥ 95%, vapor pressure (37.8 ℃) ≤ 1430kpa, and total sulfur content ≤ 10mg/m3.