| 摘要 |
The invention relates to a method for producing propene from propane, comprising the following steps: A) a feed gas flow a containing propane is provided; B) said feed gas flow a containing propane and an oxygen-containing gas flow are delivered into a dehydrogenation zone, and propane is subjected to non-oxidative catalytic, autothermal dehydrogenation so as to obtain propene in a product gas flow b containing propane, propene, methane, ethane, ethene, Chydrocarbons, carbon monoxide, carbon dioxide, steam, and hydrogen; C) the product gas flow b is cooled and steam is separated by precipitation so as to obtain a product gas flow c that is stripped of steam; D) carbon dioxide is separated by gas washing so as to obtain a product gas flow d stripped of carbon dioxide; E) product gas flow d is cooled, and a liquid hydrocarbon flow e containing propane, propene, methane, ethene, and Chydrocarbons is separated by precipitation so as to obtain a remaining gas flow e containing methane, hydrogen, and carbon monoxide; F) the liquid hydrocarbon flow e1 is delivered into a first distillation zone and is divided by distillation into a flow f1 containing propane, propene, and the Chydrocarbons and a flow f2 containing ethane and ethene; G) flow f1 is delivered into a second distillation zone and is divided by distillation into a product flow g1 containing propene and a flow g2 containing propane and the Chydrocarbons. |
