The present invention pertains to a method for producing high value-added compounds from polyethylene terephthalate. More specifically, the present invention demonstrates that a monomeric terephthalic acid obtained from the chemical hydrolysis of polyethylene terephthalate can be converted to high value-added aromatic compounds and aromatic-derived compounds, and ethylene glycol, which is another monomer of polyethylene terephthalate, can be converted to glycolic acid, which is a cosmetic material. The present invention is characterized by recycling polyethylene terephthalate waste into high value-added compounds.

The present invention pertains to a method for producing high value-added compounds from polyethylene terephthalate. More specifically, the present invention demonstrates that a monomeric terephthalic acid obtained from the chemical hydrolysis of polyethylene terephthalate can be converted to high value-added aromatic compounds and aromatic-derived compounds, and ethylene glycol, which is another monomer of polyethylene terephthalate, can be converted to glycolic acid, which is a cosmetic material. The present invention is characterized by recycling polyethylene terephthalate waste into high value-added compounds.

The invention relates to a process (100) for the recycling of an article based on (meth)acrylic thermoplastic polymer resin, characterized in that it comprises the following steps: introduction (110) of the article into a system suitable for the recycling of thermoplastic polymer, at least partial depolymerization (130) of the (meth)acrylic thermoplastic polymer resin so as to form (meth)acrylate monomers, introduction (140) of a hydrolysis catalyst into a hydrolysis reactor, introduction (150) of water into said hydrolysis reactor, and conversion (160), in the hydrolysis reactor, of at least part of the (meth)acrylate monomers into (meth)acrylic acid. The invention also relates to a system for recycling an article based on (meth)acrylic thermoplastic polymer resin.

The invention relates to a process (100) for the recycling of an article based on (meth)acrylic thermoplastic polymer resin, characterized in that it comprises the following steps: introduction (110) of the article into a system suitable for the recycling of thermoplastic polymer, at least partial depolymerization (130) of the (meth)acrylic thermoplastic polymer resin so as to form (meth)acrylate monomers, introduction (140) of a hydrolysis catalyst into a hydrolysis reactor, introduction (150) of water into said hydrolysis reactor, and conversion (160), in the hydrolysis reactor, of at least part of the (meth)acrylate monomers into (meth)acrylic acid. The invention also relates to a system for recycling an article based on (meth)acrylic thermoplastic polymer resin.

The invention relates to a method for degradation of plastic materials into terephthalic acid (TPA) and/or ethylene glycol and/or other monomers that form the plastic materials.

The invention relates to a method for degradation of plastic materials into terephthalic acid (TPA) and/or ethylene glycol and/or other monomers that form the plastic materials.

A process for the production of polymers from waste plastics feedstocks includes: providing a hydrocarbon stream A obtained by treatment of a waste plastics feedstock; optionally providing a hydrocarbon stream B; 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); performing a thermal cracking operation in the presence of steam to obtain a cracked hydrocarbon stream D; supplying the cracked hydrocarbon stream D to a separation unit; performing a separation operation in the separation unit to obtain a product stream E comprising a monomer; supplying the product stream E to a polymerisation reactor; and performing a polymerisation reaction to obtain an polymer. The process allows for optimisation of the quantity of waste plastic material that finds its way back into a polymer that is produced as outcome of the process.

A process for the production of polymers from waste plastics feedstocks includes: providing a hydrocarbon stream A obtained by treatment of a waste plastics feedstock; optionally providing a hydrocarbon stream B; 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); performing a thermal cracking operation in the presence of steam to obtain a cracked hydrocarbon stream D; supplying the cracked hydrocarbon stream D to a separation unit; performing a separation operation in the separation unit to obtain a product stream E comprising a monomer; supplying the product stream E to a polymerisation reactor; and performing a polymerisation reaction to obtain an polymer. The process allows for optimisation of the quantity of waste plastic material that finds its way back into a polymer that is produced as outcome of the process.

A method and process arrangement for producing hydrocarbons from polymer-based waste in which the polymer-based waste is gasified with steam at low temperature in a gasifier for forming a product mixture, and the temperature is 640-750° C., and the product mixture is supplied from the gasifier to a recovery unit of the hydrocarbons for separating at least one hydrocarbon fraction.

A method and process arrangement for producing hydrocarbons from polymer-based waste in which the polymer-based waste is gasified with steam at low temperature in a gasifier for forming a product mixture, and the temperature is 640-750° C., and the product mixture is supplied from the gasifier to a recovery unit of the hydrocarbons for separating at least one hydrocarbon fraction.