Method and Plant for Producing Olefins

A process for the production of olefins comprising:

• subjecting a first feed stream comprising propane and hydrogen to propane dehydrogenation to obtain a first product stream, the first product comprising at least propylene, propane, ethane and/or ethylene, methane and hydrogen;
• subjecting at least part of the first product stream to a first separation sequence to form a transfer fraction comprising at least ethane and/or ethylene, wherein the first separation sequence comprises a first separation step and a second separate step;
• subjecting a second feed stream to steam cracking to obtain a second product stream;
• subjecting at least part of the second product stream to crude gas compression and thereafter to a second separation sequence;
• wherein:
• the first separation step comprises receiving at least part of the first product streams and forming a gas fraction enriched in hydrogen and methane and a liquid fraction depleted in hydrogen and methane;
• and
• the second separation step comprises receiving at least part of the liquid fraction;
• and forming the transfer fraction;
• and
• at least a part of the transfer fraction is transferred to the steam cracking or the crude gas compression.