Abstract: The invention relates to a process and an installation to produce a monovinylaromatic polymer (3) comprising post-consumer recycled polystyrene (PCR-PS) wherein the process comprises the steps of mixing the PCR-PS (5) and the monovinylaromatic monomer (7) within a dissolver (9) to dissolve the PCR-PS (5) in the monovinylaromatic monomer (7) so as to produce a polymerization mixture (13); and a step of filtering the polymerization mixture (13) that includes continuously redirecting at least a part of the stream of the filtered polymerization mixture (17) back to the dissolver (9) and mixing it with the polymerization mixture (13) so as to continuously reduce the content of insoluble material in the polymerization mixture (13) contained in the dissolver (9).

Abstract: The present invention relates to a process for the production of high value chemicals, preferably including at least ethylene and propylene, by steam cracking a mixture of non-cyclic paraffin stream (A) comprising at least 90% of components having at least 12 carbon atoms, with either a mixture of hydrocarbons having from 3 to 4 carbon atoms or a mixture of hydrocarbons comprising at least 90% of components having a boiling point ranging from 15° C. to 200° C.

Abstract: The invention relates to a conductive article made from a composite material comprising: from 50 to 99 wt % of a first polyethylene resin as based on the total weight of said composite material, wherein the first polyethylene resin has a melt index MI2 of at most 0.45 g/10 min as determined according to ISO 1133 (190° C.—2.16 kg), and a density ranging from 0.920 g/cm3 to 0.980 g/cm3 as determined according to ISO 1183 at a temperature of 23° C.; and from 0.2 to 10 wt % of carbon particles as based on the total weight of said composite material as determined according to ISO 11358 selected from nanographene, carbon nanotubes or any combination thereof; wherein the composite material further comprises from 0.10 to 0.48 wt % of polyethylene glycol as based on the total weight of the composite material, and in that said polyethylene glycol is selected to have a weight average molecular weight Mw of at most 20,000 g/mol.

Abstract: The invention relates to a process for dehydrating alcohols to olefins, comprising a reaction step and a catalyst selectivation step.

Abstract: A Fischer-Tropsch process for synthesizing hydrocarbons, by bringing a catalyst comprising a support and an active phase comprising a Group VIII metal into contact with a feedstock comprising synthesis gas, said catalyst being prepared according to the following steps: a) a porous support is provided; b) an organic compound containing oxygen and/or nitrogen is added to the porous support; c) a step of bringing said porous support into contact with a solution containing a salt of a precursor of the phase comprising a Group VIII metal is carried out; d) the porous support obtained at the end of step c) is dried; characterized in that step b) is carried out by bringing together said porous support and said organic compound under conditions of temperature, pressure and duration such that a fraction of said organic compound is transferred in the gaseous state to the porous support.

Abstract: The present invention relates to a process for the preparation of ethylene polymers using a number of reactors arranged in series comprising the steps in which a) ethylene, a diluent, a catalyst, a co-catalyst and optionally comonomers and hydrogen are introduced into a first reactor, b) polymerization of ethylene and optionally comonomers is carried out in the reaction mixture of said first reactor to make ethylene polymers, c) reaction mixture is discharged from said first reactor, d) said reaction mixture and fresh ethylene and optionally comonomers and hydrogen are introduced into the consecutive reactor to make additional ethylene polymers, e) said reaction mixture is discharged from said consecutive reactor and introduced into the further consecutive reactor, if any, with fresh ethylene and optionally comonomers and hydrogen to make additional ethylene polymers, steps c) and d) are repeated until the last reactor of the series, f) reaction mixture is discharged from last reactor of the series and ethyl

Abstract: A composition may contain a first polymer, a second polymer, and a block copolymer. The first polymer may be polylactic acid, starch, polybutylene succinate, poly(butylene adipate-co-terephthalate), or a mixture thereof. The second polymer may be polybutadiene, high impact polystyrene, or a mixture thereof. The block copolymer may be a block copolymer of polylactic acid and polybutadiene. The composition may be prepared by a process that includes contacting the first polymer with the second polymer and the block copolymer. Articles may be prepared from the composition.

Abstract: A process for purifying an olefinic feedstock containing olefins with 4 carbon atoms and impurities including isobutanal, ethanol and acetone, the process including a pre-treatment containing at least one step of eliminating the ethanol and the water present in the olefinic feedstock and a step of simultaneously eliminating the isobutanal and the acetone, by passing the feedstock from the pre-treatment over at least one fixed bed of at least one adsorbent containing at least one material with a zeolite framework, the material with a zeolite framework being chosen from zeolites, AIPOs, SAPOs and mixtures thereof; the step of simultaneously eliminating the isobutanal and the acetone being carried out at a temperature of between 0 and 200° C., at a pressure of 0.1 to 10 MPa and with an hourly space velocity of the feedstock over the fixed bed of 0.1 to 10 h?1.

Abstract: A method for isomeris ng dehydration in the presence of a specific catalyst, to produce at least one alkene, carried out on a feedstock containing a non-linear primary monoalcohol, where the catalyst includes a zeolite having a series of 8MR channels and a binder having certain pore volume, which catalyst is multilobe-shaped and has characteristics including certain average mesopore volume Vm, and mesopores having a certain diameter, an average certain macropore volume VM, the macropores having a certain diameter, and certain average micropore volume V?, the micropores having a certain diameter, and the catalyst has a certain exposed geometric area.

Abstract: The invention relates to a process for dehydrating alcohols to olefins, comprising a reaction step and a catalyst selectivation step.

Abstract: Catalyst compositions comprising an inorganic porous material with pore diameters of at least 2 nm and of crystals of molecular sieve, characterized in that the crystals of molecular sieve have an average diameter, measured by scanning electron microscopy, not bigger than 50 nm, and in that the catalyst composition presents a concentration of acid sites ranges from 50 to 1200 ?mol/g measured by TPD NH3 adsorption; and the XRD pattern of said catalyst composition is the same as the X ray diffraction pattern of said inorganic porous material.

Abstract: A process for purifying an olefinic feedstock containing olefins with 4 carbon atoms and impurities including isobutanal, ethanol and acetone, the process including a pre-treatment containing at least one step of eliminating the ethanol and the water present in the olefinic feedstock and a step of simultaneously eliminating the isobutanal and the acetone, by passing the feedstock from the pre-treatment over at least one fixed bed of at least one adsorbent containing at least one material with a zeolite framework, the material with a zeolite framework being chosen from zeolites, AIPOs, SAPOs and mixtures thereof; the step of simultaneously eliminating the isobutanal and the acetone being carried out at a temperature of between 0 and 200° C., at a pressure of 0.1 to 10 MPa and with an hourly space velocity of the feedstock over the fixed bed of 0.1 to 10 h?1.

Abstract: The present invention relates to composition comprising at least two polymers, wherein, (a) the first polymer is a block copolymer comprising at least one polyfarnesene block and at least one poly-L-lactide block; and, (b) the second polymer is selected from poly-D-lactide, or a block copolymer comprising at least one polyfarnesene block and at least one poly-D-lactide block; or, (a) the first polymer is a block copolymer comprising at least one polyfarnesene block and at least one poly-D-lactide block; and, (b) the second polymer is selected from poly-L-lactide, or a block copolymer comprising at least one polyfarnesene block and at least one poly-L-lactide block. The present invention relates to a process for preparing said composition, articles comprising said composition, the use of block copolymers as nucleating agent and stereo-complex forming agent.

Abstract: The present invention relates to a process for synthesizing lactide, comprising the steps of: adding thermal energy to at least one solvent; providing one or more components to at least one reactor, the one or more components comprising lactic acid and the at least one solvent; converting at least part of the lactic acid into lactide and water; and recovering at least part of the lactide; wherein the step of adding thermal energy to the at least one solvent is performed prior to the step of adding the at least one solvent to the at least one reactor; wherein the at least one solvent is provided in the at least one reactor independently from the lactic acid by a separate entry into the at least one reactor; and, wherein the step of converting at least part of the lactic acid into lactide and water is performed in one step.

Abstract: The invention relates to a process for dehydration of a mono-alcohol, or of a mixture of at least two mono-alcohols, having at least 2 carbon atoms and at most 7 carbon atoms into olefins having the same number of carbons, wherein the process uses a catalyst composition that comprises a modified crystalline aluminosilicate has an acidity between 350 and 500 ?mol/g that comprises, and further wherein the catalyst composition is obtained by a process comprising the steps of providing a crystalline aluminosilicate having a Si/Al framework molar ratio greater than 10; and steaming said crystalline aluminosilicate, or said shaped and/or calcined crystalline aluminosilicate at a temperature ranging from 100° C. to 380° C.; and under a gas phase atmosphere, without liquid, containing from 5 wt % to 100 wt % of steam; at a pressure ranging from 2 to 200 bars; at a partial pressure of H2O from 2 bars to 200 bars; and said steaming being performed during at least 30 min and up to 144 h.

Abstract: The present invention relates to a process for synthesizing lactide, comprising the steps of: adding thermal energy to at least one of one or more components; providing the one or more components to at least one reactor, the one or more components comprising lactic acid and at least one solvent; converting at least part of the lactic acid into lactide and water; recovering at least part of the lactide; recovering at least part of the at least one solvent; recovering at least part of the thermal energy, wherein at least part of the recovered thermal energy is recovered from the recovered solvent; and adding the recovered thermal energy to at least one of the one or more components.

Abstract: Disclosed herein is a polyethylene composition which includes 45% to 95% by weight of a metallocene-catalyzed polyethylene A. The polyethylene A has a density ranging from 0.916 g/cm3 to 0.940 g/cm3, and a melt index MI2 of at least 1.5 g/10 min to at most 4.0 g/10 min. The polyethylene composition has at least 5% to at most 55% by weight of a metallocene-catalyzed polyethylene B. The metallocene-catalyzed polyethylene B includes 45% to 75% by weight of a metallocene-catalyzed polyethylene B1. The polyethylene B1 has a density of at most 0.918 g/cm3, a melt index MI2 lower than the melt index MI2 of polyethylene A, and includes 25% to 55% by weight of a metallocene-catalyzed polyethylene B2. The density of polyethylene B2 is higher than the density of polyethylene B1. The melt index MI2 of polyethylene B2 is higher than the melt index MI2 of polyethylene B1.

Abstract: The present invention relates to a catalyst composition comprising a modified crystalline aluminosilicate of the Framework Type FER having Si/Al framework molar/ratio greater than 20 characterized in that in said modified crystalline aluminosilicate the ratio between the strong acid sites and the weak acid sites, S/W, is lower than 1.0 and having the extra framework aluminum (EFAL) content lowered to less than 10 wt % preferably 5 wt % even more preferably less than 2 wt % measured by 27Al MAS NMR. The present invention further relates to a process for producing olefins from alcohols in presence of said catalyst composition.

Abstract: Embodiments of poly-lactide compositions are disclosed herein. The compositions may comprise at least one first polymer selected from polylactide-polybutadiene (PLA-PB) block copolymer, polylactide-urethane-polybutadiene block copolymer, or a mixture thereof; and at least one second polymer selected from polylactide, polylactide-urethane, or a mixture thereof. The composition may also comprise from 20% to 50% by weight of said first polymer based on the total weight of the composition and from 50% to 80% by weight of said second polymer based on the total weight of the composition. Embodiments of the present invention also relate to a process for preparing the poly-lactide compositions and articles comprising the poly-lactide compositions.

Abstract: Process to monitor unwanted formation of a polymer, having internal mechanical strain, wherein said formation of polymer generates acoustic emissions due to the sudden break of the polymer, wherein the number of said acoustic emissions increases over time when there is formation of said unwanted polymer formation, wherein said acoustic emissions is detected by a resonant piezo electric transducer having a resonant frequency centred on the second harmonic of said acoustic emission.