【摘要】 丙烷脱氢（PDH）是生产丙烯的关键工艺。丙烷原料中存在的二甲醚会导致Pt基脱氢催化剂失活，为保证催化剂活性和生产装置正常运行，采用吸附法脱除二甲醚，并通过再生的方式实现其连续运行。工业应用数据表明，固定床吸附法脱除二甲醚技术可将丙烷原料中二甲醚体积含量降低至1.0×10^-6以下，完全满足装置对丙烷原料的净化要求。该技术在装置上的成功应用，实现了国内副产丙烷在丙烯生产中的资源化应用，降低了丙烷的成本，为我国PDH装置原料多元化提供了可行路径。更多还原

【Abstract】 Propane dehydrogenation（PDH） is a key petrochemical process for producing propylene.Dimethyl ether present in propane feedstock can cause deactivation of Pt-based dehydrogenation catalysts. To ensure catalyst activity and normal operation of production facilities,adsorption technology is used to remove dimethyl ether,and continuous operation is achieved through regeneration. Industrial application data indicates that the fixed-bed adsorption method for removing dimethyl ether can reduce the dimethyl ether content in propane feedstock to below 1.0×10^-6（φ）,fully meeting the purification requirements for propane feedstock in the unit. The successful application of this technology in the facility has enabled the resource-efficient utilization of by-product propane in propylene production,reduced propane costs,and provided a feasible pathway for raw material diversification in China’s PDH facilities.更多还原