| 摘要 |
<p>The invention concerns a method and a device for steam cracking hydrocarbons which consists in heating a mixture of hydrocarbons and water vapour to a desired temperature sufficiently high to crack the hydrocarbons and transform them into olefins. The method is characterised in that the energy source required for heating the mixture is essentially supplied by cogeneration which produces by combustion of a fuel both thermal and mechanical energy transformed into electricity by an alternator, and the mixture is first subjected to pre-heating by the thermal energy supplied by cogeneration, and then heated to the desired cracking temperature by electric heating using the electricity supplied by cogeneration.</p> |
