丙烷脱氢制丙烯经济及技术分析

丙烯是重要的有机化工原料，除用于生产聚丙烯外，还是生产丙烯腈，丁醇、辛醇、环氧丙烷、异丙醇、丙苯、丙烯酸、羧基醇及壬基酚等产品的主要原料，丙烯的齐聚物是提高汽油辛烷值的主要成分，丙烷催化脱氢制丙烯比烃类蒸气裂解能产生更多的丙烯。当用蒸气裂解生产丙烯时，丙烯收率最多只有33％、而用催化脱氢法生产丙烯，总收率可达74％－86％，用唯一原料生产唯一产品，催化脱氢的设备投资比烃类蒸气裂解低33％。并且采用催化脱氢的方法，能有效地得用液化石油气资源使之转变为有用的烯烃。

Economy and Technology Analysis of Propane Dehydrogenation to Propylene

Propylene is a very import chemical feedstock. Except its use in the production of polypropylene, it is aslo widely used as main material to produce acrylonitrile, butyl alcohol, octanol, propylene oxide, isopropyl alcohol, propyl benzene , crylic acid, carbonyl alcohol, nonyl phenol, and so on. Oligomer of propylene is the main component to raise gasoline o-catane rating. More propylene can be produced by propane dehydrogenation to propylene than by hydrocarbon steam craking. The yield of propylene by steam cracking is 33% at most. However, the total yield can reach 74% -86% by catalytic dehydrogenation of propane. The investment on equipments by catalytic dehydrogenation is lower than by stream cracking because the only product can be got from the only feedstock by catalytic dehydrogenation. In addition, liquefied petroleum gas resources can be effectively utilized to get useful alkene by catalytic dehydrogenation.