WO2010058119A1 - Procede de fabrication d'un methylacrylate de methyle derive de la biomasse - Google Patents

Procede de fabrication d'un methylacrylate de methyle derive de la biomasse Download PDF

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WO2010058119A1
WO2010058119A1 PCT/FR2009/052198 FR2009052198W WO2010058119A1 WO 2010058119 A1 WO2010058119 A1 WO 2010058119A1 FR 2009052198 W FR2009052198 W FR 2009052198W WO 2010058119 A1 WO2010058119 A1 WO 2010058119A1
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fraction
methanol
carbon monoxide
ethanol
reaction
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PCT/FR2009/052198
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English (en)
French (fr)
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Jean-Luc Dubois
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Arkema France
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Priority to BRPI0921466A priority Critical patent/BRPI0921466A2/pt
Priority to EP09768204A priority patent/EP2361240A1/fr
Priority to CN200980154688.6A priority patent/CN102282121B/zh
Priority to US13/129,714 priority patent/US20110287991A1/en
Publication of WO2010058119A1 publication Critical patent/WO2010058119A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/303—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by hydrogenation of unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/1516—Multisteps
    • C07C29/1518—Multisteps one step being the formation of initial mixture of carbon oxides and hydrogen for synthesis
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/48—Preparation of compounds having groups
    • C07C41/50—Preparation of compounds having groups by reactions producing groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/49—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide
    • C07C45/50—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reaction with carbon monoxide by oxo-reactions
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
    • C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/36—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates
    • C07C67/38—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates by addition to an unsaturated carbon-to-carbon bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/10—Esters
    • C08F20/12—Esters of monohydric alcohols or phenols
    • C08F20/14—Methyl esters, e.g. methyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
    • C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
    • C10M145/14—Acrylate; Methacrylate
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
    • C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
    • C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00—Preparation of oxygen-containing organic compounds
    • C12P7/62—Carboxylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C07C2521/04—Alumina
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Definitions

  • the present invention relates to a process for producing a methyl methacrylate derived from biomass.
  • Methyl methacrylate is the starting material for many polymerization or copolymerization reactions.
  • PMMA poly (methyl methacrylate)
  • ALTUGLAS ® and PLEXIGLAS ® poly (methyl methacrylate)
  • PLEXIGLAS ® poly (methyl methacrylate)
  • It is in the form of powders, granules or plates, the powders or granules used to mold various articles, such as articles for the automobile, household and office items, and the plates found use in the signs and displays, in the fields of transportation, building, lighting and sanitary, as noise barriers, for works of art, flat screens, etc.
  • Methyl methacrylate is also the starting material for the organic synthesis of higher methacrylates, which, like it, are used in the preparation of acrylic emulsions and acrylic resins, serve as additives for polyvinyl chloride, enter As comonomers in the manufacture of many copolymers such as methyl methacrylate-butadiene-styrene copolymers, serve as additives for lubricants, and have many other applications among which one could mention medical prostheses, flocculants, products of maintenance, etc.
  • Acrylic emulsions and resins have applications in the fields of paints, adhesives, paper, textiles, inks, etc.
  • Acrylic resins serve also in the manufacture of plates, having the same applications as the PMMA.
  • Methyl methacrylate can be obtained in a variety of ways, one of which is an alpha addition of formaldehyde to methyl propionate, depending on the reaction:
  • Methyl methacrylate can also be obtained by reacting methyl propionate with a formaldehyde-methanol mixture or with methylal
  • Methyl propionate can be obtained by carbonylation of ethylene in the presence of methanol, by esterification of propionic acid with methanol or by hydrogenation of methyl acrylate.
  • Propionic acid can be obtained by carbonylation of ethanol or by hydrogenation of acrylic acid.
  • Methyl acrylate can be obtained by esterification of acrylic acid with methanol.
  • the acrylic acid can be obtained by oxidation of acrolein, which can be obtained by catalytic oxidation of propylene or by dehydration of glycerol, obtaining acrylic acid as a by-product.
  • the raw materials used for these syntheses of methyl methacrylate are mainly of petroleum origin or of synthetic origin, comprising Many sources of CO2 emissions contribute to the increase of the greenhouse effect.
  • the raw materials used for these syntheses of methyl methacrylate are mainly of petroleum origin or of synthetic origin, comprising Many sources of CO2 emissions contribute to the increase of the greenhouse effect.
  • it is a question of manufacturing methyl methacrylate by reaction of methyl propionate with formaldehyde the methyl propionate having been obtained by reaction of methoxycarbonylation of ethylene with carbon monoxide from a synthesis gas derived from coal (coal of fossil origin).
  • the source of these raw materials will gradually run out.
  • Raw materials from biomass are renewable and have a reduced impact on the environment. They do not require all the refining steps, very expensive in energy, petroleum products.
  • the production of fossil CO2 is reduced so that they contribute less to global warming.
  • the plant has consumed atmospheric CO2 at a rate of 44g of CO2 per mole of carbon (or for 12 g of carbon). So the use of a renewable source begins by decreasing the amount of atmospheric CO2.
  • the vegetable matter has the advantage of being able to be cultivated in large quantity, according to the demand, on most of the terrestrial globe.
  • Biomass is the raw material of plant or animal origin naturally produced. This plant material is characterized by the fact that the plant for its growth has consumed atmospheric CO2 while producing oxygen. The animals for their growth consumed this vegetable raw material and thus assimilated carbon derived from atmospheric CO2.
  • the purpose of the present invention is therefore to respond to certain concerns of sustainable development.
  • the subject of the present invention is therefore a process for producing methyl methacrylate by reacting methyl propionate with formaldehyde or a formaldehyde-methanol or methylal mixture, characterized in that at least a fraction of at least one reagent involved in this reaction was obtained by a reaction or a succession of reactions from the biomass.
  • the reaction of methyl propionate with formaldehyde consists of a catalytic condensation in the gas phase, with a large excess of methyl propionate, optionally in the presence of methanol, at a temperature generally between 225 ° C. and 450 ° C.
  • the catalysts alkali or alkaline-earth metal aluminosilicates, silica or alumina impregnated with a hydroxide, a carbonate or a nitrate, for example potassium, cesium or zirconium, or a lanthanide. Operating conditions for carrying out the reaction are described in particular in documents FR 2 223 080 or US Pat. No. 3,701,798.
  • the reaction of methyl propionate with methylal is carried out with an excess of methyl propionate, optionally in the presence of water, at a temperature generally of between 200 ° C. and 500 ° C. in the presence of a catalyst which may be chosen from phosphates and / or silicates of magnesium, calcium, aluminum, zirconium, thorium, and / or titanium, alone or with the addition of oxides of zirconium, aluminum, thorium and / or titanium and and / or boric acid and / or urea, the catalyst being capable of being modified with an alkaline or alkaline-earth carboxylate.
  • a catalyst which may be chosen from phosphates and / or silicates of magnesium, calcium, aluminum, zirconium, thorium, and / or titanium, alone or with the addition of oxides of zirconium, aluminum, thorium and / or titanium and and / or boric acid and / or urea, the catalyst being capable of being modified with
  • At least one fraction of methyl propionate can be obtained by carbonylation of ethylene in the presence of methanol, at least a fraction of at least one of ethylene, carbon and methanol involved in this methoxycarbonylation reaction having been obtained by a reaction or a succession of reactions from the biomass.
  • At least one fraction of ethylene may be obtained by ethanol synthesis by ethanol fermentation of at least one plant material and optionally purification of the ethanol obtained, then by dehydration of the ethanol obtained to produce a mixture of ethylene and water, removal of water and optionally purification of the ethylene obtained; and / or having obtained at least a fraction of the carbon monoxide by gasification of any material of animal or vegetable origin, leading to a synthesis gas consisting essentially of carbon monoxide and hydrogen, from which carbon monoxide has been extracted ; and / or having obtained at least a fraction of the methanol by pyrolysis of the wood or by gasification of any material of animal or vegetable origin leading to a synthesis gas consisting essentially of carbon monoxide and hydrogen, or by fermentation from plant crops such as wheat, corn, sugar cane or beetroot, giving fermentable products and therefore alcohol.
  • plant crops such as wheat, corn, sugar cane or beetroot
  • the plant material subjected to the ethanolic fermentation may advantageously have been chosen from sugars, starch and plant extracts containing thereof, among which mention may be made of beetroot, sugar cane, cereals such as corn, wheat , barley and sorghum, potatoes, and a source of cellulose (mixture of cellulose, hemicellulose and lignin), but also organic waste.
  • the fermentation is then obtained, for example using Saccharomyces cerevisiae or its mutant, ethanol.
  • the dehydration of ethanol could have been carried out using a catalyst based on ⁇ -alumina.
  • At least one fraction of methyl propionate can be obtained by esterification of propionic acid with methanol, at least a fraction of at least one of the acid propionic and methanol put in in this reaction having been obtained by a reaction or a succession of reactions from the biomass.
  • At least a fraction of the propionic acid can be obtained by carbonylation of the ethanol, at least a fraction of the carbon monoxide having been obtained by gasification of all materials of animal or vegetable origin, leading to a gas synthesis compound consisting essentially of carbon monoxide and hydrogen, from which carbon monoxide has been extracted; and at least a fraction of the ethanol obtained by fermentation of at least one plant material and optionally purification of the ethanol obtained; and / or at least one fraction of methanol can be obtained by pyrolysis of the wood or by gasification of any material of animal or vegetable origin leading to a synthesis gas consisting essentially of carbon monoxide and hydrogen, or by fermentation at from plant crops such as wheat, corn, sugar cane or beetroot, giving fermentable products and therefore alcohol.
  • At least a fraction of the propionic acid may also have been obtained by hydrogenation of acrylic acid, which has been obtained as a by-product of the dehydration of glycerol. It has been possible to obtain at least a fraction of glycerol as a by-product of the manufacture of biofuels from oleaginous plants such as rapeseed, sunflower or soy containing triglycerides, hydrolysis or transesterification of these triglycerides to form glycerol apart from fatty acids and fatty esters respectively.
  • a third embodiment of the invention it has been possible to obtain at least a fraction of the methyl propionate by hydrogenation of methyl acrylate, itself obtained by esterification of acrylic acid with methanol, at least a fraction of the methanol having been obtained by pyrolysis of the wood or by gasification of all materials of animal origin or vegetable leading to a synthesis gas composed essentially of carbon monoxide and hydrogen, or by fermentation from crops of plants such as wheat, corn, sugar cane or beet, giving fermentable products and therefore of the alcohol ; and / or at least a fraction of the acrylic acid which has been obtained as a by-product of the dehydration of glycerol, itself obtained as a by-product of the production of biofuels from oleaginous plants such as rapeseed, sunflower or soy.
  • the synthesis gas for preparing the methanol advantageously comes from the waste liquor of the manufacture and bleaching of cellulosic pulps.
  • the subject of the present invention is also the use of methyl methacrylate manufactured by the process as defined above, as monomer for the manufacture of poly (methyl methacrylate), as starting material for the organic synthesis of methacrylates. as a product used in the preparation of acrylic emulsions and acrylic resins, as an additive for polyvinyl chloride, as a comonomer in the manufacture of copolymers and as a lubricant additive.
  • methanol is obtained by pyrolysis of the wood, by gasification of all materials of animal or vegetable origin, leading to a synthesis gas composed essentially of carbon monoxide and hydrogen which is optionally reacted. with water in order to adjust the H 2 / CO ratio in the proportions appropriate to the synthesis of methanol, or by fermentation from crops of plants such as wheat, corn, sugar cane or beet, giving fermentable products and therefore alcohol.
  • the materials of animal origin are, by way of non-limiting examples, fish oils and fats, such as cod liver oil, whale oil, sperm whale, dolphin oil, seal oil, sardine oil, herring oil, squales, oils and fats of cattle, pigs, goats, equines, and poultry, such as tallow, lard, milk fat, bacon, chicken fat, beef, pork, horse, and others.
  • fish oils and fats such as cod liver oil, whale oil, sperm whale, dolphin oil, seal oil, sardine oil, herring oil, squales, oils and fats of cattle, pigs, goats, equines, and poultry, such as tallow, lard, milk fat, bacon, chicken fat, beef, pork, horse, and others.
  • Plant-based materials are, by way of non-limiting examples, ligno-cellulosic residues from agriculture, cereal straw fodder, such as wheat straw, straw or maize residues; cereal residues as maize residues; cereal flours, such as wheat flour; cereals such as wheat, barley, sorghum, maize; wood, waste and scrap wood; grains; sugar cane, sugar cane residues; shoots and stems of peas; beetroot, molasses such as beet molasses; Jerusalem artichokes; potatoes, potato tops, potato residues; starch; mixtures of cellulose, hemicellulose and lignin, and the black liquor of stationery, which is a carbon-rich material.
  • the synthesis gas for preparing methanol comes from the recovery of waste liquor from the manufacture of cellulosic pulps.
  • Ethylene is obtained by dehydration of ethanol, which is obtained by ethanolic fermentation of at least one plant material, in the presence of one or more yeasts or mutants of these yeasts.
  • the plant material may especially be chosen from sugars, starch and plant extracts containing it, among which include beetroot, sugar cane, cereals such as wheat, barley, sorghum or wheat. corn, as well as the potato, without this list being exhaustive. It can alternatively be biomass (mixture of cellulose, hemicellulose and lignin).
  • the plant material used is generally in hydrolysed form before the fermentation stage.
  • This preliminary hydrolysis step thus allows, for example, the saccharification of starch to transform it into glucose, or the transformation of sucrose into glucose.
  • Ethanol is generally obtained in mixture with heavier alcohols, called Fusel alcohols, the composition of which depends on the plant material used and the fermentation process. These generally comprise about 50% of iso-amyl alcohol (C5) and some percentages of C3 and C4 alcohols (isobutanol).
  • Fusel alcohols the composition of which depends on the plant material used and the fermentation process.
  • These generally comprise about 50% of iso-amyl alcohol (C5) and some percentages of C3 and C4 alcohols (isobutanol).
  • it is therefore preferable to purify the ethanol produced by fermentation for example by distillation and / or absorption on filters of the molecular sieve, carbon black or zeolite type.
  • the ethanol obtained by fermentation and advantageously purified as indicated above is then dehydrated in a reactor in a mixture of ethylene and water. It is preferred that the ethanol is injected at the top of the reactor.
  • This dehydration step is generally conducted in the presence of a catalyst which may be a ⁇ -alumina.
  • a catalyst suitable for the dehydration of ethanol is especially marketed by the company EUROSUPPORT under the trade name ESM 110 ® . It is an undoped trilobal alumina containing little residual Na2 ⁇ 0 (usually 0.04%). Those skilled in the art will be able to choose the optimal operating conditions for this dehydration step.
  • the ethylene obtained may optionally be constituted by a mixture with other alkenes if there has been no purification of ethanol as indicated above, that is, if the ethanol has been subjected to dehydration in mixed with Fusel alcohols. It is therefore advantageous in this case to provide a step of purifying the ethylene obtained, for example by absorption on molecular sieve type filters, carbon black or zeolites.
  • Carbon monoxide is obtained by gasification of all materials of animal or vegetable origin, leading to a synthesis gas composed essentially of carbon monoxide and hydrogen, from which carbon monoxide is extracted.
  • Glycerol is obtained from oleaginous plants such as rapeseed, sunflower or soya, containing oils (triglycerides) or animal fats.
  • a step of hydrolysis or transesterification of triglycerides is carried out to form, with glycerol, respectively fatty acids or fatty esters.
  • this transesterification can be carried out by reacting the crude oil in a stirred reactor in the presence of an excess of alcohol (for example methanol), preferably with a basic catalyst
  • the crude oil is reacted in the presence of an excess of water, preferably with an acid catalyst.
  • This transesterification or hydrolysis reaction is preferably carried out at a temperature of between 40 and 120 ° C.
  • the reactor is continuously fed to maintain the water / acid or alcohol / ester molar ratio of greater than or equal to 2. 1.
  • the glycerol is separated from the mixture obtained by decantation.
  • the present invention thus makes it possible to obtain a methyl methacrylate having at least a portion of its carbons of renewable origin.
  • a renewable raw material, or bioressourcée is a natural resource, animal or vegetable, whose stock can be reconstituted over a short period on a human scale. In particular, this stock must be renewed as quickly as it is consumed.
  • renewable raw materials contain 14 C in the same proportions as atmospheric CO2. All carbon samples from living organisms
  • the 14 C / 12 C ratio of living tissues is identical to that of the atmosphere.
  • 14 C exists in two main forms: in mineral form, that is to say carbon dioxide (CO2), and in organic form, that is to say carbon incorporated into molecules
  • CO2 carbon dioxide
  • organic form that is to say carbon incorporated into molecules
  • the 14 C / 12 C ratio is kept constant by the metabolism because the carbon is continuously exchanged with the environment, the proportion of 14 C being constant in the atmosphere, the same is true in the organism, as long as it is alive, since it absorbs this 14 C as it absorbs 12 C.
  • the average ratio of 14 C / 12 C is equal to l, 2xl ⁇ ⁇ 12 for a bioresourced material, while carbon 14 is derived from the bombardment of atmospheric nitrogen (14), and spontaneously oxidizes with the oxygen of the In our human history, the content of 14 C02 has increased as a result of atmospheric nuclear explosions, and has steadily decreased after stopping these tests.
  • 12 C is stable, that is to say that the number of atoms of 12 C in a given sample is constant over time.
  • 14 C is radioactive (each gram of carbon in a living being contains enough 14 C isotopes to give 13.6 disintegrations per minute) and the number of such atoms in a sample decreases over time (t ) according to the law :
  • - no is the number of 14 C at the origin (on the death of the creature, animal or plant),
  • n is the number of 14 C atoms remaining at the end of time t
  • - at. is the disintegration constant (or radioactive constant); it is connected to the half-life.
  • the half-life of 14 C is 5730 years. In 50 000 years the 14 C content is less than 0.2% of the initial content and therefore becomes difficult to detect. Petroleum products, or natural gas or coal therefore do not contain 14 C.
  • the 14 C content is substantially constant from the extraction of renewable raw materials, to the manufacture of methyl methacrylate 1 according to the invention and even up at the end of its use.
  • the methyl methacrylate obtained according to the invention contains organic carbon derived from renewable raw materials; it is therefore characterized in that it contains 14 C.
  • At least 1% by weight of the carbon atoms of said methyl methacrylate is of renewable origin.
  • at least 20% of the carbons of said methyl methacrylate are of renewable origin.
  • at least 40% of the carbons of said methyl methacrylate are of renewable origin.
  • at least 60%, and even more at least 80% of the carbon atoms of said methyl methacrylate are of renewable origin.
  • the methyl methacrylate obtained according to the invention contains at least 0.01 ⁇ 10 -10 % by weight, preferably at least 0.2 ⁇ 10 -10 %, of 14 C relative to the total mass of carbon. Even more preferably, said methyl methacrylate contains at least 0.4 ⁇ 10 -10 % of 14 C, more particularly at least 0.7 ⁇ 10 -10 % of 14 C, and even more specifically at least 0.9 ⁇ 10 -10 %. 14 C.
  • methyl methacrylate obtained by the process according to the invention contains 0,2xl0 ⁇ 10% when, 2xl ⁇ ⁇ 10% by mass
  • the methyl methacrylate obtained according to the invention contains 100% organic carbon derived from renewable raw materials and therefore 1, 2xl ⁇ ⁇ 10
  • the 14 C content of methyl methacrylate can be measured for example according to the following techniques: by liquid scintillation spectrometry: this method consists in counting 'Beta' particles resulting from the decay of 14 C. The radiation is measured
  • Beta from a sample of known mass (number of known carbon atoms) for a certain time. This 'radioactivity' is proportional to the number of 14 C atoms, which can be determined.
  • the 14 C present in the sample emits ⁇ - radiation, which, in contact with the scintillating liquid (scintillator), give rise to photons. These photons have different energies (between 0 and 156 Kev) and form what we call a spectrum of 14 C.
  • the analysis relates to the CO2 previously produced by combustion of the carbon sample in an appropriate absorbent solution, or on benzene after prior conversion of the carbon sample to benzene, by mass spectrometry: the sample is reduced to graphite or gaseous CO2, analyzed in a mass spectrometer.
  • This technique uses an accelerator and a mass spectrometer to separate 14 C ions and 12 C and thus determine the ratio of the two isotopes.
  • the measurement method preferably used in the case of methyl methacrylate is the mass spectrometry described in ASTM D6866-06.
  • the methyl methacrylate obtained according to the process according to the invention constitutes a raw material containing mainly methyl methacrylate, in the sense that the product resulting from the process may comprise impurities related to the nature of the reagents used or generated during the course of the process. process, which may be different from the impurities generated during the implementation of reagents of fossil origin.
  • the method according to the invention may therefore further comprise one or more purification steps.
  • the methyl methacrylate obtained according to the process according to the invention can be used as it is or optionally after a purification step, such as raw material in all the applications in which it is known to use MAM, especially as monomer for the manufacture of poly (methyl methacrylate), as a starting material for the organic synthesis of higher methacrylates, as a product used in the preparation of acrylic emulsions and acrylic resins, as additive for polyvinyl chloride, as comonomer in the manufacture of copolymers and as additive for lubricants.
  • MAM monomer for the manufacture of poly (methyl methacrylate)
  • a starting material for the organic synthesis of higher methacrylates as a product used in the preparation of acrylic emulsions and acrylic resins
  • additive for polyvinyl chloride as comonomer in the manufacture of copolymers and as additive for lubricants.
  • Example 1 Manufacture of methyl methacrylate by reaction of methyl propionate with a formaldehyde-methanol mixture
  • a water-sugar mixture (10 kg of sugar) is poured into a 50-liter plastic tank. 0.25 l of baker's yeast mixed beforehand with 0.25 l of warm water, a dose of Calgon (water softener) are added to the mixture and the mixture is left to macerate for 14 days at a temperature of 25 ° C. To limit the formation of acetic acid, the container is covered with a lid provided with a valve. At the end of this step, the mixture is filtered, decanted and the solution is distilled to recover the azeotrope of ethanol, 96% in water.
  • Calgon water softener
  • Corn kernels are used in a container and covered with hot water. Tissue is placed over the container to limit contamination and heat loss. The container is provided with a hole in the foot to allow a slow flow. Hot water is added regularly to maintain the level. The container is thus maintained for 3 days or until the grains have sufficiently exploded. Then the grains are dried and ground.
  • a slurry is prepared by adding hot water, and thus maintained to start the fermentation.
  • a yeast is added for the fermentation (250 g of yeast for 200 liters of slurry for example), and optionally sugar. With yeast, the fermentation takes about 3 days, in the absence of yeast it can take 10 days.
  • a yeast Saccharomyces cerevisiae is used. The porridge is converted when it stops bubbling. Fermentation produces both ethanol and CO2. The product is placed in a boiler equipped with a distillation column. The first distilled fractions contain volatile contaminants and alcohol, and are removed. Then the ethanol is collected. The last fractions are low in alcohol.
  • Ib - Manufacture of ethylene by dehydration of ethanol 96% ethanol, obtained by ethanol fermentation of corn or sugar grains as described previously, is vaporized in a vaporizer, then preheated in a heat exchanger, before being injected at the head of a 127 mm diameter reactor containing a catalytic bed heated to 300-400 0 C and consisting of a layer of alumina ESM110 ® EUROSUPPORT, representing a volume of 12700cm 3 and a mass of 6500 g, the ratio of the volume flow rate of ethanol to the catalyst volume being Ih "1.
  • the mixture of water and ethylene produced in the reactor is cooled in the heat exchanger, before being sent to a gas-liquid separator where ethylene and water (possibly mixed with by-products) are separated.
  • a solid catalyst based on palladium palladium (di-t-butylphosphino o-xylene) dibenzylidene acetone (37 mg, 5.0 * 10 -5 mole), cobalt carbonyl (9 mg, 2.6 * 10 -5 mole) and methanesulfonic acid produced by Arkema (68 microliters, 1.0 * 10 -3 mol) are dissolved in methanol (219 ml, 5.41 mol) and methyl propionate (81 ml, 0.841 mol) under an atmosphere. nitrogen.
  • the solution is transferred to an autoclave and heated to 80 ° C., and then CO and the ethylene prepared above in a molar ratio of 1: 1 are introduced into the reactor continuously at a total pressure of 10 bar.
  • the reaction is carried out for a period of 4 hours and the products are analyzed to determine the amount of methyl propionate formed: 4329 kg of methyl propionate per kg of palladium per hour.
  • the yield of the reaction relative to the methanol involved is 19%.
  • unconverted ethylene and CO are recycled, and the methanol remains in the reactor.
  • the methyl propionate is then isolated for the next step.
  • a Cs / Zr / SiO 2 type catalyst prepared from a silica gel in the form of 2-4 mm diameter spheres having a purity of 99.9% and a surface area of 320 m is used. 2 / g and a pore volume of 0.83 cm 3 / g with a median pore diameter of 9 nm.
  • the silica is impregnated with an aqueous solution of zirconium nitrate (impregnation with interaction), filtration, and drying in rotary evaporator, then in an oven at 120 ° C. for 2 hours. The impregnation and drying were repeated a further 2 times so as to obtain a deposit of 0.02% by weight (1.2 g of zirconium per 100 moles of silica).
  • the cesium is then also impregnated with an aqueous solution of cesium carbonate, followed by drying, to give a cesium content of about 4% by weight (calculated by weight of metal).
  • the catalyst was then calcined at 450 ° C. under air for 3 hours.
  • the specific surface of the catalyst thus prepared is 300 m 2 / g.
  • Methanol is used from the reaction of a synthesis gas obtained by gasification of black liquor.
  • the reaction was carried out in a microreactor at atmospheric pressure, charged with about 3 g of ground catalyst to have particles of about millimeter.
  • the catalyst is first dried at 300 ° C. under a flow of 100 ml / min of nitrogen for 30 minutes.
  • the catalyst is heated to 300 ° C. and fed with a mixture of methyl propionate, methanol and formalin solution (formalin / methanol / water: 35/15/50 - mass ratios), so that the molar ratios Methanol Methyl propionate and Formol / methyl propionate are 1.45 and 0.187, respectively.
  • the temperature of the catalyst is brought to 350 ° C. overnight.
  • the yield of methyl methacrylate + methacrylic acid is 9%, with a selectivity of 97%.
  • an ethanol-water mixture is used, the ethanol being obtained by fermentation as in Example la.
  • the reaction is carried out at a pressure of 30 bar and at a temperature of 900 ° C., with a Ni / Alumina catalyst. On leaving the reactor, the excess water is condensed as well as the heavy impurities.
  • the CO / H 2 mixture is cryogenically separated, passing the mixture through a liquid nitrogen trap to retain the CO.
  • the condensed gas is then reheated to separate the CO from other impurities (methane, CO 2 , etc.).
  • Example 2 For the synthesis of methanol, the synthesis gas of Example 2 is used. The composition of this gas is adjusted to have an H2 / CO / CO2 ratio of 71/23/6 and the CO2 content is 6%. The total pressure of the gas is
  • a commercial catalyst Cu-Zn-Al-O, MegaMax 700 is used.
  • the reactor is supplied with the gas mixture at 70 bar with a VVH of 1000Oh -1 , and passes over the catalyst at a temperature of 240 ° C.
  • the mixture produced gases are then decompressed at atmospheric pressure and the methanol produced is isolated by distillation.
  • the selectivity to methanol is 99% and the methanol yield is 95%.
  • EXAMPLE 4 Manufacture of formaldehyde by oxidation of methanol The reaction is carried out in a fixed bed reactor. The flow of helium and oxygen is regulated by mass flow meters. The gas flow passes through a methanol-containing evaporator / saturator prepared according to Example 3. The evaporator is either at room temperature or heated by heating ribbons. The temperature of the saturator is adjusted to control the partial pressure of methanol. The temperature of the gas mixture is controlled by a thermocouple at the top of the saturator.
  • the gaseous mixture is then sent to the reactor which is placed in an oven.
  • the reaction temperature is measured using a thermocouple which is in the catalytic bed.
  • the gaseous effluents are analyzed by in-line gas phase chromatography using a microGC equipped with two columns (Molecular sieve and Plot U).
  • the catalysts are ground and the 250 micron particle size fraction is mixed with a double amount of silicon carbide of the same particle size and placed in the glass reactors.
  • MicrogC calibration was performed with reference gas mixtures, and calibration for condensables (dimethoxymethane, methanol, methyl formate) was performed using the saturator evaporator.
  • the catalyst is first activated under a stream of Helium / Oxygen (48 Nml / min - 12 Nml / min) at 340 ° C. for 15 hours and 30 minutes. Then the temperature is brought back to 280 0 C and the accumulation of the product is started.
  • Helium / Oxygen 48 Nml / min - 12 Nml / min
  • the flow rates of oxygen and helium are respectively 4.7 and 47.6 Nml / min and the concentration of methanol is adjusted to 5% of the reaction medium. (Methanol / O 2 / inert: 5 / 8.5 / 86.5).
  • the conversion of methanol is almost complete, and the selectivity to formaldehyde is 90%.
  • the products are recovered at the outlet of the reactor in a cold temperature-controlled trap.
  • the product obtained is then passed over an anionic resin to remove the acids present, and an aqueous solution of methanol is added to obtain a standard Formol Formalin / Water / Methanol mass ratio formalin: 35/50 / 15.
  • the added methanol inhibits the reactions of formalin and thus avoids the subsequent formation of secondary products such as hemi-acetals and polyacetals.
  • Example 4 is reproduced but with the following conditions:
  • the catalyst is first activated under a stream of Helium / Oxygen (48 Nml / min - 12 Nml / min) at 340 ° C. for 15 hours and 30 minutes. Then, the temperature is reduced to 250 ° C. After stabilization, the products are accumulated. Then the catalyst temperature is increased in trays up to 280 0 C. The flow rates of oxygen and helium are respectively 6.7 and 26.4 Nml / min and the concentration of methanol is adjusted to 37%. (conditions: Methanol / O 2 / inert: 37/13/50) for a VVH of 22000 ml. h "
  • the methylal is then separated by distillation from the other products, obtaining its azeotrope with water.
  • Example 3 The methanol of Example 3 and the CO of Example 2 are used in conjunction with the ethylene of Example 1-lb to produce 100% renewable methyl propionate under the conditions of Example 1-lc.
  • a yield of 18% of methyl propionate relative to methanol is obtained. After obtaining methyl propionate, it is reacted with formaldehyde (obtained as in Example 4) and methanol (obtained as in Example 3) under the conditions of Example 1-2).
  • Example 7 Synthesis of Methyl Methacrylate by Reaction of Propionaldehyde and Methylal Example 6 is repeated, but methylal (obtained in Example 5) is used in place of the methanol / formaldehyde mixture, while preserving the molar ratios.
  • the yield of methyl methacrylate + methacrylic acid is 6% and the selectivity is 94%.

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BRPI0921466A BRPI0921466A2 (pt) 2008-11-18 2009-11-17 processo para a fabricação de metacrilato de metila derivado de biomassa
EP09768204A EP2361240A1 (fr) 2008-11-18 2009-11-17 Procede de fabrication d'un methylacrylate de methyle derive de la biomasse
CN200980154688.6A CN102282121B (zh) 2008-11-18 2009-11-17 制备生物质来源的甲基丙烯酸甲酯的方法
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WO2011077140A2 (en) 2009-12-21 2011-06-30 Lucite International Uk Limited Method of producing acrylic and methacrylic acid
WO2012069813A1 (en) 2010-11-24 2012-05-31 Lucite International Uk Limited A process for the production of methacrylic acid and its derivatives and polymers produced therefrom
WO2012107758A1 (en) 2011-02-09 2012-08-16 Lucite International Uk Limited A process for the production of (meth)acrylic acid and derivatives and polymers produced therefrom
CN104254549A (zh) * 2012-04-27 2014-12-31 璐彩特国际英国有限公司 用于生产甲基丙烯酸及其衍生物的工艺以及由该工艺生产的聚合物
WO2015030580A1 (en) 2013-08-26 2015-03-05 Stichting Dienst Landbouwkundig Onderzoek Process for the production of methacrylic acid

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CN107337600A (zh) * 2017-07-04 2017-11-10 湖北三里枫香科技有限公司 一种甲醇和醋酸甲酯生产甲基丙烯酸甲酯的方法及工艺装置
US10544381B2 (en) 2018-02-07 2020-01-28 Sartec Corporation Methods and apparatus for producing alkyl esters from a reaction mixture containing acidified soap stock, alcohol feedstock, and acid
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MX2023003071A (es) * 2020-09-25 2023-05-24 Carbon Tech Holdings Llc Biorreducción de minerales metálicos integrados con pirólisis de biomasa.
CN112851505B (zh) * 2021-01-08 2022-04-26 西南化工研究设计院有限公司 一种丙烯酸甲酯连续气相加氢制丙酸甲酯工艺
CN112851507A (zh) * 2021-01-25 2021-05-28 西南化工研究设计院有限公司 一种乙醇合成甲基丙烯酸甲酯的工艺
US20230020752A1 (en) 2021-07-09 2023-01-19 Carbon Technology Holdings, LLC Producing biocarbon pellets with high fixed-carbon content and optimized reactivity, and biocarbon pellets obtained therefrom

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WO2011077140A2 (en) 2009-12-21 2011-06-30 Lucite International Uk Limited Method of producing acrylic and methacrylic acid
US8933179B2 (en) 2009-12-21 2015-01-13 Lucite International Uk Limited Method of producing arcylic and methacrylic acid
WO2012069813A1 (en) 2010-11-24 2012-05-31 Lucite International Uk Limited A process for the production of methacrylic acid and its derivatives and polymers produced therefrom
US9174913B2 (en) 2010-11-24 2015-11-03 Lucite International Uk Limited Process for the production of methacrylic acid and its derivatives and polymers produced therefrom
WO2012107758A1 (en) 2011-02-09 2012-08-16 Lucite International Uk Limited A process for the production of (meth)acrylic acid and derivatives and polymers produced therefrom
US9216938B2 (en) 2011-02-09 2015-12-22 Lucite International Uk Limited Process for the production of (meth)acrylic acid and derivatives and polyers produced therefrom
US9890103B2 (en) 2011-02-09 2018-02-13 Lucite International Uk Limited Process for the production of (meth)acrylic acid and derivatives and polymers produced therefrom
CN104254549A (zh) * 2012-04-27 2014-12-31 璐彩特国际英国有限公司 用于生产甲基丙烯酸及其衍生物的工艺以及由该工艺生产的聚合物
WO2015030580A1 (en) 2013-08-26 2015-03-05 Stichting Dienst Landbouwkundig Onderzoek Process for the production of methacrylic acid

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