	US 12,264,129 B2
	Process for the preparation of chemical products from waste plastic feedstocks
Anthoni Wouter Zijl Van, Eindhoven (NL); Nicolas Goyheneix, Riemst (BE); Lara Maria Galan-Sanchez, Eindhoven (NL); Christoph Roosen, Würselen (DE); Johan Pastwa, Elsloo (NL); and Safa Farajzadeh Bibalan, Eindhoven (NL)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
Appl. No. 18/017,340
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL)
PCT Filed Jul. 15, 2021, PCT No. PCT/EP2021/069738 § 371(c)(1), (2) Date Jan. 20, 2023, PCT Pub. No. WO2022/017906, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 20187003 (EP), filed on Jul. 21, 2020.
Prior Publication US 2023/0295061 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C07C 4/04 (2006.01); C10B 53/07 (2006.01)

CPC C07C 4/04 (2013.01) [C10B 53/07 (2013.01)]

11 Claims

1. Process for the production of butenes and butadienes from waste plastics feedstocks comprising the steps in this order of:

(a) providing a hydrocarbon stream A obtained by treatment of a waste plastics feedstock;

(b) providing a hydrocarbon stream B;

(c) supplying a feed C comprising a fraction of the hydrocarbon stream A and a fraction of the hydrocarbon stream B to a thermal cracker furnace comprising cracking coil(s);

(d) performing a thermal cracking operation in the presence of steam to obtain a cracked hydrocarbon stream D;

(e) supplying the cracked hydrocarbon stream D to one or more separation units;

(f) performing a separation operation to obtain different streams of chemical products comprising ethylene, propylene, isobutene, 1-butene, 2-butene, 1,2-butadiene, 1,3-butadiene, benzene, styrene, toluene, ethylbenzene and xylenes;

wherein in step (d):

the coil outlet temperature is ≥800 and ≤870° C.; and

the weight ratio of steam to feed C is >0.3 and <0.5,

wherein

the hydrocarbon stream A comprises:

≥25.0 and ≤50.0 wt % of n-paraffins; and

≥5.0 and ≤20.0 wt % of iso-paraffins; and

≥5.0 and ≤50.0 wt % of olefins; and

≥5.0 and ≤20.0 wt % of napthenes; and

≥5.0 and ≤15.0 wt % of aromatics;

with regard to the total weight of the hydrocarbon stream A.