Abstract: A method of depolymerization of waste polymer material into monomers comprises releasing at least part of the at least one dye from the waste polymer material in an alcoholic solvent without depolymerizing the condensation polymer in the waste polymer material and at conditions preventing a reaction between the dye and the alcoholic solvent, wherein the alcoholic solvent is a polyol. The alcoholic solvent is added in a weight ratio of the alcoholic solvent to the waste polymer material of between 200:1 and 10:1. The at least partially decolorized waste polymer is then separated from the alcoholic solvent, and the at least one dye is extracted from the alcoholic solvent so as to regenerate the alcoholic solvent, which is led to a storage for reuse. The condensation polymer is depolymerized in the purified recovered alcoholic solvent by using a catalyst. A reactor system for carrying out the method is also described.

Abstract: The separation method separates a polyalcohol compound from water, so as to obtain a purified product stream comprising the polyalcohol compound in an output concentration of at least 90 wt %. Thereto, a mixture of the polyalcohol compound and water is provided, said mixture having a polyalcohol concentration. The polyalcohol concentration of the mixture is increased in an evaporation stage. Subsequently, the mixture is treated in a distillation stage to deliver the purified product stream comprising the polyalcohol compound in the output concentration of at least 90 wt %. Herein, the distillation stage is operated to produce steam output, that is optionally compressed to a steam pressure, and is coupled to the evaporation stage. The maximum distillation pressure and/or said compressed steam pressure is not less than the maximum evaporation pressure. The reactor system is configured for performing the separation method.

Abstract: Genes encoding mutant 3-ketoacyl-CoA synthases are introduced into host cells. Certain of the mutants enhance the production of shorter-chain fatty acids and derivatives by the cell than do the wild-type (unmutated) enzymes. In other cases, the chain length is not significantly affected, but productivity is enhanced. In specific cases, both a shift toward lower chain length and higher productivity is seen. Cells producing the mutant 3-ketoacyl-CoA synthases are especially suitable for producing C6-C10 fatty acids and derivatives.

Abstract: The reactor system comprises a reactor vessel with at least one inlet and a first and a second outlet, which reactor vessel is configured for depolymerisation of a condensation polymer and which first and second outlet are configured for removal of a first and a second part of a reaction mixture. The reactor system further comprises a heat exchanger downstream of the first outlet. Herein the second outlet is arranged at a lower position of the reactor vessel than the first outlet. The first outlet is configured for removal of the first part being a dispersion and/or solution comprising said condensation polymer and depolymerisation products thereof in a solvent. Said first part is led to the heat exchanger. The second outlet is configured for removal of the second part including agglomerates. The reactor system is used for depolymerisation of a condensation polymer.

Abstract: The invention relates to a method of separating a first contaminant from a feed stream further comprising a condensation polymer. The invention further relates to a reactor system for carrying out the method, comprising at least one depolymerization vessel, configured for depolymerizing a condensation polymer into monomer, dimer, trimer and/or oligomer, which depolymerizing occurs in an alcoholic solvent, wherein said condensation polymer is provided as a feed stream further comprising a first contaminant, the reactor system comprising a separation stage, said separation stage comprising a separation vessel, downstream of the depolymerization vessel, configured for collecting a first contaminant, wherein said first contaminant is separated from the alcoholic solvent on the basis of a density separation so that the first contaminant is arranged on top of the alcoholic solvent.

Abstract: Method for depolymerising terephthalate polymer into reusable raw material, the method comprising steps of: depolymerizing terephthalate polymer by using ethylene glycol into a depolymerised mixture comprising at least one monomer and at least one dimer, wherein said at least one monomer comprises bis (2-hydroxyethyl) terephthalate (BHET), and said at least one dimer comprises dimer of bis (2-hydroxyethyl) terephthalate (BHET-dimer); removing solid compounds from said depolymerised mixture in a first separator to obtain a composition comprising the at least one dimer and the at least one monomer as solutes in a mixture of ethylene glycol and water; crystallizing BHET-dimer from said solution, thereby obtaining a mixture of BHET-dimer crystals and a first mother liquid; separating the crystallized BHET-dimer from the first mother liquid, and thereafter: forming BHET crystals from said first mother liquid, thereby obtaining a mixture of BHET crystals and a second mother liquid; and recovering the BHET crystals.

Abstract: The invention relates to a solid composition comprising at least 90.0 wt. % bis(2-hydroxyethyl) terephthalate (BHET), as based on dry weight and having a pore volume in the range of 0.20 to 1.0 cm3/g. The porosity is above 25% or even above 35%. The solid composition is made by crystallisation, followed by granulation and fluid bed drying.

Abstract: Genes encoding mutant 3-ketoacyl-CoA synthases are introduced into host cells. Certain of the mutants enhance the production of shorter-chain fatty acids and derivatives by the cell than do the wild-type (unmutated) enzymes. In other cases, the chain length is not significantly affected, but productivity is enhanced. In specific cases, both a shift toward lower chain length and higher productivity is seen. Cells producing the mutant 3-ketoacyl-CoA synthases are especially suitable for producing C6-C10 fatty acids and derivatives.

Abstract: A catalyst complex for catalysis of degradation of a polymer material is described. Said complex comprises a magnetic particulate body containing iron oxide at its surface with an average diameter of 150-450 nm, and a plurality of catalytic groups grafted onto the iron oxide surface of the magnetic particulate body, which catalytic groups comprise a bridging moiety and a catalyst entity, wherein the bridging moiety comprises a functional group for adhesion or bonding to the iron oxide surface and a linking group towards the catalyst entity, and wherein the catalyst entity comprises a positively charged aromatic heterocycle moiety, and a negatively charged moiety for balancing the positively charged aromatic moiety.

Abstract: The present invention provides various combinations of genetic modifications to a transformed host cell that provide increase conversion of carbon to a chemical product. The present invention also provides methods of fermentation and methods of making various chemical products.

Abstract: A recombinant cell for producing a fatty acid ester. The recombinant cell is genetically engineered to produce a reduction in free fatty acids compared to a cell that has not been similarly genetically engineered. Methods for producing fatty acid esters while decreasing free fatty acid production are also described.

Abstract: A catalyst complex for catalysis of degradation of a polymer material is described. Said complex comprises a magnetic particulate body containing iron oxide at its surface with an average diameter of 150-450 nm, and a plurality of catalytic groups grafted onto the iron oxide surface of the magnetic particulate body, which catalytic groups comprise a bridging moiety and a catalyst entity, wherein the bridging moiety comprises a functional group for adhesion or bonding to the iron oxide surface and a linking group towards the catalyst entity, and wherein the catalyst entity comprises a positively charged aromatic heterocycle moiety, and a negatively charged moiety for balancing the positively charged aromatic moiety.

Abstract: Genes encoding mutant 3-ketoacyl-CoA synthases are introduced into host cells. Certain of the mutants enhance the production of shorter-chain fatty acids and derivatives by the cell than do the wild-type (unmutated) enzymes. In other cases, the chain length is not significantly affected, but productivity is enhanced. In specific cases, both a shift toward lower chain length and higher productivity is seen. Cells producing the mutant 3-ketoacyl-CoA synthases are especially suitable for producing C6-C10 fatty acids and derivatives.

Abstract: A catalyst complex for catalysis of degradation of a polymer material is described. Said complex comprises a magnetic particulate body containing iron oxide at its surface with an average diameter of 150-450 nm, and a plurality of catalytic groups grafted onto the iron oxide surface of the magnetic particulate body, which catalytic groups comprise a bridging moiety and a catalyst entity, wherein the bridging moiety comprises a functional group for adhesion or bonding to the iron oxide surface and a linking group towards the catalyst entity, and wherein the catalyst entity comprises a positively charged aromatic heterocycle moiety, and a negatively charged moiety for balancing the positively charged aromatic moiety.

Abstract: The present invention provides various combinations of genetic modifications to a transformed host cell that provide increase conversion of carbon to a chemical product. The present invention also provides methods of fermentation and methods of making various chemical products.

Abstract: A catalyst complex for catalysis of degradation of a polymer material is described. Said complex comprises a magnetic particulate body containing iron oxide at its surface with an average diameter of 150-450 nm, and a plurality of catalytic groups grafted onto the iron oxide surface of the magnetic particulate body, which catalytic groups comprise a bridging moiety and a catalyst entity, wherein the bridging moiety comprises a functional group for adhesion or bonding to the iron oxide surface and a linking group towards the catalyst entity, and wherein the catalyst entity comprises a positively charged aromatic heterocycle moiety, and a negatively charged moiety for balancing the positively charged aromatic moiety.

Abstract: The present invention provides various combinations of genetic modifications to a transformed host cell that provide increase conversion of carbon to a chemical product. The present invention also provides methods of fermentation and methods of making various chemical products.

Abstract: The present invention provides various combinations of genetic modifications to a transformed host cell that provide increase conversion of carbon to a chemical product. The present invention also provides methods of fermentation and methods of making various chemical products.

Abstract: The present invention provides various combinations of genetic modifications to a. transformed host cell that provide increase conversion of carbon to a chemical product. The present invention also provides methods of fermentation and methods of making various chemical products.

Abstract: The present invention provides various combinations of genetic modifications to a transformed host cell that provide increase conversion of carbon to a chemical product. The present invention also provides methods of fermentation and methods of making various chemical products.