CPC C10G 63/08 (2013.01) [C10G 7/00 (2013.01); C10G 51/04 (2013.01); C10G 63/00 (2013.01); C10G 69/08 (2013.01); C10G 69/10 (2013.01); C10G 2300/301 (2013.01); C10G 2300/4006 (2013.01); C10G 2300/4012 (2013.01); C10G 2300/4018 (2013.01); C10G 2300/4025 (2013.01); C10G 2400/20 (2013.01); C10G 2400/30 (2013.01)] | 17 Claims |
1. A method for processing full range naphtha, the method comprising the steps of:
feeding full range naphtha to a separation unit, the full range naphtha having a final boiling point less than 250° C.; separating the naphtha, in the separation unit, to produce a light naphtha stream having a final boiling point in a range of 60° C. to 110° C. and a heavy naphtha stream having a final boiling point less than 250° C.;
hydrotreating the heavy naphtha stream in a hydrotreater unit to produce a hydrotreated stream;
separating the hydrotreated stream to produce a paraffinic stream comprising primarily C6 to C12 paraffins and a reformable stream comprising 40 to 80 wt. % aromatics and the remainder naphthene;
reforming the reformable stream to produce an aromatic stream comprising greater than 50 wt. % aromatics, wherein conditions in the reforming unit include a temperature range from 450° C. to 580° C. and a pressure range from 1 to 50 bars;
combining the light naphtha stream with the paraffinic stream to produce a combined stream;
catalytically cracking the combined stream in a fluid catalytic cracker to form a cracked stream;
separating the cracked stream to produce a plurality of product streams that include a first stream that comprises primarily C2 to C3 paraffins, a second stream comprising primarily methane and hydrogen, a third stream comprising primarily C2 to C4 olefins, a fourth stream primarily comprising C4 to C6 hydrocarbons, a fifth stream comprising primarily fuel oil, and a sixth stream comprising C6-C12 hydrocarbons; and
steam cracking the first stream in a steam cracker to produce C2 to C3 olefins; and
feeding the sixth stream to the hydrotreating unit.
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