PROCESS FOR FEEDING PLASTIC WASTE MATERIAL TO A THERMOCHEMICAL OR PYROLYSIS REACTOR

• Main Author: REIMERS, Jay L
• Format: Patent
• Language: English; French
• Published: 20.05.2021
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; CRACKING HYDROCARBON OILS; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MAKING GRANULES OR PREFORMS; METALLURGY; MINERAL WAXES; NATURAL GAS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Process for feeding plastic material, e.g. a plastic waste, to a processor such as a thermochemical reactor, e.g. a pyrolysis reactor. The process comprises an optional shredder or disintegrator (1), a conveying system (2), a feed hopper (3) with a lock hopper or rotary valve, a melting tank (6) with an agitator (5) followed by a melt pump (7) for the delivery of molten plastic to the processor. The advantage of the current process includes the ability to supply a consistent, metered flow to the processor, independent of the recycled plastic's melt properties, or the form or particle size and distribution of the plastic material. L'invention concerne un procédé d'alimentation en matière plastique, par exemple des déchets en plastique, à un dispositif de traitement tel qu'un réacteur thermochimique, par exemple un réacteur de pyrolyse. Le procédé comprend un broyeur ou un désintégrateur éventuel (1), un système de transport (2), une trémie d'alimentation (3) ayant une trémie à sas ou une vanne rotative, un réservoir de fusion (6) muni d'un agitateur (5) suivi d'une pompe de fusion (7) pour la distribution de plastique fondu au dispositif de traitement. L'avantage du procédé selon l'invention comprend la capacité de fournir un débit constant et sur mesure au dispositif de traitement, indépendamment des propriétés de fusion du plastique recyclé, ou de la forme ou de la taille des particules et de la distribution de matière plastique.