US 11,939,529 B2
Plastic-to-oil plant, according cracking reactor, and related methods for converting plastic waste into petrochemical products
Maria Laura Mastellone, Caserta (IT)
Assigned to Pruvia GmbH, Zirndorf (DE)
Appl. No. 17/603,441
Filed by Pruvia GmbH, Zirndorf (DE)
PCT Filed Apr. 15, 2020, PCT No. PCT/EP2020/060558
§ 371(c)(1), (2) Date Oct. 13, 2021,
PCT Pub. No. WO2020/212403, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 10 2019 110 186.7 (DE), filed on Apr. 17, 2019.
Prior Publication US 2022/0204863 A1, Jun. 30, 2022
Int. Cl. C10G 1/10 (2006.01); B01D 3/14 (2006.01); B01D 53/18 (2006.01); C10G 1/00 (2006.01)
CPC C10G 1/10 (2013.01) [B01D 3/14 (2013.01); B01D 53/18 (2013.01); C10G 1/002 (2013.01); C10G 2300/1003 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A plant for converting plastics into petrochemical products, comprising:
a cracking reactor for a pyrolysis reaction or thermochemical process, wherein the plastics is converted into at least gasified pyrolysis products and char, and further comprising a combustor;
the cracking reactor comprising a reactor vessel with a bottom section, a middle section and a top section, the reactor vessel further comprising a plastics inlet port, a particles inlet port, a pyrolysis products outlet port discharging from the top section, and a char and particles outlet port discharging from the bottom section;
the combustor comprising a char and particles inlet port, a combustion air inlet port, and a combustion products and particles outlet port,
the char and particles outlet port of the cracking reactor being connected to the char and particles inlet port of the combustor, and the combustion products and particles outlet port of the combustor being connected to the particles inlet port of the cracking reactor,
the cracking reactor and the combustor are connected in a particles loop which contains a multitude of solid particles, such that during operation the particles are cycled from the cracking reactor to the combustor and back to the cracking reactor,
wherein mixing in the cracking reactor is promoted by a flow of particles fed at the top of the cracking reactor counter to a flow of the pyrolysis products and without the need of mechanical mixing devices,
wherein the plastics inlet port is a plastic melt flow inlet port,
wherein the plastic melt flow inlet port feeds a plastic melt flow into an annular chamber which opens into the middle section of the reactor vessel via a plurality of high-pressure nozzles, said nozzles being capable of injecting high viscous plastic melt at a pressure of at least 50 bar into the vessel body,
wherein the particles inlet port leads into a channel which opens at least in part into the middle section, and wherein said channel comprises a space between an external reactor vessel wall and a heat conductive internal partition wall.