Process for treating a gaseous effluent from pyrolytic decomposition of a polymer
US12268985B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 18, 2019 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Feb 8, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10B53/07
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating a gaseous effluent obtained from a pyrolytic decomposition of one or more polymers, including: a condensation step, in a condensation chamber maintained at a first pressure, of a gaseous effluent placed in contact with an absorbent liquid, the temperature of the absorbent liquid being below the temperature of the gaseous effluent, a step of partial vaporization, by expansion of the condensate in a chamber maintained at a second pressure below the first pressure, a reinjection step which includes at least partly redirecting a first liquid or vapor fraction, obtained on conclusion of the partial vaporization step, to the condensation chamber, and a recovery step including purification of a second liquid or vapor fraction, obtained on conclusion of the partial vaporization step and charged with monomer(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.