Integrated process for conversion of whole crude to light olefins

A method for producing light olefins from a hydrocarbon feed, the method comprising:

• introducing the hydrocarbon feed having an American Petroleum Institute (API) gravity value above 35° into a feed separator to separate the hydrocarbon feed into at least a light gas fraction stream comprising C1-C4 alkanes, a light fraction stream comprising C5+ alkanes, and a heavy fraction stream, wherein the temperature cut between the light fraction stream and the heavy fraction stream is from 280° C. to 320° C.;
• passing the light gas fraction stream to a steam cracker to steam crack at least a portion of the light gas fraction stream and produce a steam cracked effluent stream;
• preheating the heavy fraction stream to a temperature of less than or equal to 250° C. by mixing the heavy fraction with steam prior to introduction to a steam enhanced catalytic cracker;
• introducing the light fraction stream and the heavy fraction stream to the steam enhanced catalytic cracker (SECC) in the presence of steam and one or more catalysts selected from ZSM-5 and USY to catalytically crack at least a portion of the light fraction stream and the heavy fraction stream and produce a catalytically cracked effluent stream, wherein the weight ratio of steam to the light fraction stream and the heavy fraction stream is from 1:5 to 1:1;
• and
• passing the steam cracked effluent stream and the catalytically cracked effluent stream to a product separator to produce the light olefins;
• wherein the light fraction stream has a final boiling point of less than 300° C.