关键词: 丙烷脱氢, 能耗, 直接脱氢, 氧化脱氢, 丙烷/丙烯分离, 金属-有机框架材料

Abstract:

The technical path for reducing energy consumption of propane dehydrogenation process is discussed from four aspects: technological progress of direct dehydrogenation catalyst, technological optimization and innovation, oxidative dehydrogenation technology and low energy consumption propane propylene separation technology. The technical progress of direct dehydrogenation catalyst can improve the performance and life of the catalyst, thus improving the efficiency of the process and achieving the goal of reducing energy consumption. Adopting more suitable process conditions and types can effectively improve the energy efficiency of the process and reduce the energy consumption of feedstock heating and product separation. Although oxidative dehydrogenation can overcome the thermal-dynamic limits of direct dehydrogenation and avoid energy consumption causing by high reaction temperature, it still confronts the problems of low reaction selectivity and hard control of reaction depth. The process of propane-propylene separation has high energy consumption. The development of adsorption separation and membrane separation technology might bring a high efficient separation process with low energy consumption.

Key words: propane dehydrogenation, energy consumption, direct dehydrogenation, oxidative dehydrogenation, propane-propylene separation, metal-organic frameworks;