US 12,168,754 B2
Systems and methods for treating pyrolysis oil
Steven R. Horlacher, League City, TX (US)
Assigned to Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed by CHEVRON PHILLIPS CHEMICAL COMPANY LP, The Woodlands, TX (US)
Filed on Mar. 16, 2022, as Appl. No. 17/655,051.
Prior Publication US 2023/0295524 A1, Sep. 21, 2023
Int. Cl. C10G 67/00 (2006.01); B01D 3/00 (2006.01); B01D 3/32 (2006.01); C10G 7/12 (2006.01); C10G 45/00 (2006.01); C10G 47/16 (2006.01); C10G 49/00 (2006.01)
CPC C10G 67/00 (2013.01) [B01D 3/009 (2013.01); B01D 3/32 (2013.01); C10G 7/12 (2013.01); C10G 45/00 (2013.01); C10G 47/16 (2013.01); C10G 49/002 (2013.01); C10G 2300/301 (2013.01); C10G 2300/4006 (2013.01); C10G 2300/4012 (2013.01); C10G 2400/02 (2013.01); C10G 2400/26 (2013.01)] 39 Claims
OG exemplary drawing
 
1. A pyrolysis oil fractionation system for treating a pyrolysis oil feed, the system including:
a fractionation column including:
a pyrolysis oil inlet,
at least one treatment catalyst bed above the inlet and configured to dehydrohalogenate, decontaminate, and/or hydrogenate the pyrolysis oil feed to form a treated pyrolysis oil feed, and
a plurality of distillation trays above the inlet and configured to fractionate the treated pyrolysis oil feed into a light fraction, a middle fraction, a heavy fraction, and a bottom fraction;
a condenser fluidically coupled to the fractionation column and configured to receive the light fraction and produce a condensed gasoline product and a vapor;
a receiver fluidically coupled to the condenser and configured to collect the gasoline product and the vapor;
a knockout drum fluidically coupled to the receiver and configured to receive a condensed stream from the vapor and produce a fuel gas product; and
a distillate stripper fluidically coupled to the fractionation column and configured to receive the middle fraction and produce a distillate product.