EP1190137B1 - Verfahren zum auftrennen lignocellulosehaltiger biomasse - Google Patents
Verfahren zum auftrennen lignocellulosehaltiger biomasse Download PDFInfo
- Publication number
- EP1190137B1 EP1190137B1 EP00925193A EP00925193A EP1190137B1 EP 1190137 B1 EP1190137 B1 EP 1190137B1 EP 00925193 A EP00925193 A EP 00925193A EP 00925193 A EP00925193 A EP 00925193A EP 1190137 B1 EP1190137 B1 EP 1190137B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lignin
- alkanolamine
- extraction
- cellulose
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/003—Pulping cellulose-containing materials with organic compounds
Definitions
- the present invention relates to a method for separating lignocellulose-containing Biomass, in particular from wood or grain straw, in the essential components in the form of lignin, hemicellulose and cellulose.
- the disadvantages of classic pulp processes are mainly the high water requirement, the large content of organic substances in the wastewater and the relatively high operating costs. The latter are not least due to the ancillary companies to process the Alkali and the wastewater or waste streams.
- the conventional process there is no separation without the use of sulfur-containing compounds of lignin; this is associated with odor nuisance.
- the classic Wood pulping processes (sulfate, sulfite, Milox) are among the lignin chemically cleaving and mainly dissolving the cleavage products (lignin sulfonic acids).
- the formacell process is mainly the lignin dissolving and only slightly splitting process.
- ASAM and Organocell are combined Method.
- the ASAM process in particular requires a complicated one Chemical recovery system.
- a method of dissolving the lignin would have the advantage that the lignin and others By-products could easily be separated.
- a disadvantage of using steam is that additives do not or can only be supplied in the steam with great technical effort. Much more The biomass must be in contact with the substances to be used before the steam explosion brought what is generally with a poor distribution or with a higher dosage is linked. This also applies analogously to the steam refining process (Steam digestion process with subsequent mechanical fibering), which with less high-tension steam works (10 - 15 bar) and mechanical for fraying Devices used.
- Cereal straw is also of particular interest as a starting material, as in the USA 125 million tons of wheat straw in Europe and even 170 million tons a year attack. In many countries - especially in Asia (e.g. China) and in Africa - there are a lack of wood as a raw material for the production of pulp, so one on the use of straw is instructed.
- Known reprocessing methods are for example the steam explosion or soda pulping (pulping) Straw.
- the former method is a relatively complex mechanical construction and does not solve the problem of the clean separation of cellulose and lignin.
- the Fibrillation is never entirely complete, which is what refiners add, especially but requires a high dilution of the fiber suspension down to 2%.
- alkanolamines to remove lignin from lignocelluloses was first developed by Elton Fisher and R.S. Bower (J. Am. Chem. Soc. 63 (1941) 1881-1883). In the 1970s, monoethanolamine was used as an additive processed to sodium hydroxide solution for wood digestion (keywords: alkaline pulping in aqueous alcohols and amines, acceleration of soda delignification, sulfur free delignification). This should reduce or even replace the sulphurous ones Chemicals are made possible.
- DE-A-2803465 describes a method for producing cellulose from plants Fiber raw materials by digestion with organic solvents, the Fiber raw materials during a pretreatment first the hemicelluloses and others extractable components are withdrawn.
- US-A-4259151 discloses a process for producing cellulose powder from woody material and a device for performing the method.
- a process for pulping is disclosed of raw lignocellulosic materials, especially for the production of alpha cellulose and other valuable products, described as a treatment agent at least 70% by weight alkylolamine is used.
- the treatment is done by boiling under pressure between room temperature and 200 ° C for 4 to 20 Hours.
- NaOH can also be used.
- the treatment agent separated, the pulp obtained with dilute inorganic acid washed and bleached. The separation into the individual components achieved in this way However, the pulp is completely inadequate and the quality obtained is not satisfactory.
- the invention is therefore based on the object of a method for fractionation of lignocellulose-containing biomass, in which the addressed Disadvantages of the prior art are largely eliminated.
- It should be the wooden components Hemicellulose, lignin and cellulose in as little contaminated as possible Form obtained separately from each other in order to further process this way to provide these raw materials.
- It should be a sulfur and chlorine free Wood digestion process can be provided, which also works without sodium hydroxide and thus on complex recovery, exhaust air and wastewater treatment processes can do without.
- chemical pulp production in time, chemical and energy-saving way carried out in a small decentralized unit can be.
- Cellulose is said to be a never-dried pulp, i.e. with high accessibility, can be directly processed into cellulose derivatives. This is intended to manufacture of tailor-made according to the criteria of the individual chemical pulp processor Pulp inexpensive and also in the state of highest reactivity for further processing with an integrated processing chain from wood to cellulose derivative.
- the method according to the invention enables lignocelluloses to be digested and be broken down into its components by first performing a pre-hydrolysis be subjected to treatment with water or steam, then the hydrolyzed hemicelluloses formed are extracted with aqueous media and then extracting the residue with alkanolamine to obtain a Cellulose raw material is subjected.
- lignocellulose can be used for the teaching according to the invention, namely the Fractionation into the essential components of cellulose, polyoses and lignin used become.
- Plant growth materials are lignocellulose-containing biomass various types, such as wood, oat husks, corn and grain stalks, bagasse, Straw of all kinds, such as wheat straw, rice straw and oat straw, are suitable.
- wood it is usual, logs or industrial waste wood, preferably in shredded form, e.g. in the form of wood chips.
- fibrous raw materials such as annual plants, are suitable for cutting shredded fibers. Crushed is preferred or shredded wood, in the form of hardwood, beech or softwood used.
- the water content of the lignocellulose-containing biomass can be between that for fresh harvested lignocelluloses typical content of about 80% by mass, in particular 50 % By mass, and after intensive drying are also close to 0%.
- the initial step of the method according to the invention comprises pre-hydrolysis the lignocellulose-containing biomass by treatment with water or steam.
- the biomass can so-called steam explosion process, the application is also of the steam refining process possible.
- Prehydrolysis of the To carry out biomass in mild conditions the goal of this The process step is to break down the hemicelluloses to such an extent that their subsequent separation as oligosaccharides by extraction with aqueous Media, such as washing with water, is easily possible.
- the pre-hydrolysis is a well-known process step in the pulp industry, not dealt with here must be received. Cellulose and lignin should be as little as possible to be attacked.
- the total breakdown of the hemicelluloses in the first step of Process i.e. the pre-hydrolysis
- the pre-hydrolysis according to step a) can also be carried out to a small extent be performed. It is then pre-hydrolyzed to the extent that the hemicelluloses bound acids are cleavable and the cleaved according to step b) Acids are washed out. This plays in particular for the production of High yield pulp plays a role. Excess acids would come with the following Alkanolamine to be used react and thus lead to losses. So it can a minimum pre-hydrolysis may be sufficient.
- a two-stage pre-hydrolysis can also be used to improve the effectiveness of the pre-hydrolysis at the same temperature and cooking conditions, but at higher Effectiveness, i.e. first steam and then hot water.
- the straw can also be at about 150 ° C to 190 ° C, especially about Prehydrolyzed 170 ° C and then an extraction according to step c) elevated temperature below about 170 ° C, preferably below about 160 ° C, in particular at about 115 to 135 ° C to chemical pulp receive.
- Sugar is obtained here by concentrating the pre-hydrolyzate, what a suitable further processing can follow.
- the appropriate variant can be selected for the desired pulp quality.
- the lignocellulose-containing biomass can be used Carrying out step a), i.e. pre-hydrolysis, acidic or alkaline Undergo pretreatment. This means a further increase in the yield desired products.
- the raw material which is generally already well-fibred, with hot Water is treated to dissolve most of the degraded hemicellulose and separate.
- the pre-hydrolyzed and softened biomass is thus extracted with an aqueous medium from the hydrolyzed hemicelluloses formed freed.
- excess water is preferably squeezed out and hot washed. This can be followed by mechanical unraveling of the biomass, for example crushing in a refiner to the desired degree of division, which can be of great importance depending on the desired quality.
- Mass (based on dry matter) adjusted to about 0.1: 1 1 to 4: 1.
- alkanolamines in particular all alkanolamines in question that are not due to alkyl groups on nitrogen are substituted. For example, from: N-methyl-monoethanolamine and N, N-dimethyl-monoethanolamine, since this has no effect on the extraction of the lignin show the wood.
- the extraction according to the invention is preferably carried out under pressure, i.e. in one suitable autoclave or a continuous extractor. With an extraction under atmospheric pressure, e.g. with straw, equally good results can be achieved.
- the hemicelluloses are released washed, if necessary crushed and suitably pretreated with ammonia Biomass with the water it contains, the extractant (s), for at least heated to a temperature between about 80 and 220 ° C for about 1 hour. It can also use solvents for the resulting lignin degradation components be present.
- a continuous extraction is preferred over a batch mode of operation. This can be done by placing the biomass in a pressure reactor can flow through the preheated extractant or by doing this extracting material, the biomass, leads to the extractant in countercurrent. Both Variants have the advantage over the autoclave, i.e. stationary operation, that as a result of removing the degradation products with the extractant side reactions are largely excluded. In addition, with the same extraction effect with a lower liquor ratio of extractant to wood chips and work at a lower temperature. The solubility of Organosolv lignin in monoethanolamine is relatively high (250 g / liter).
- the extraction is multi-stage, i.e. in at least two successive extractions with alkanolamine carried out.
- the same total amount of alkanolamine is preferably used as used in a one-step extraction. This can effectively Countercurrent extraction takes place, since the shortest extraction times are realized become.
- MEA Monoethanolamine
- the alkanolamine extraction can be carried out at lower temperatures (approx. 100 to 120 ° C) be carried out when ammonia pretreatment is carried out. Despite the low temperatures, low kappa numbers are then obtained. Moreover side reactions are strongly suppressed.
- the cellulose raw material is obtained.
- the residue after distilling off the solvent can also be combined with the extract separated from the fibers. From this, water and the alkanolamine serving as extractant are separated by distillation, preferably vacuum distillation. Other separation processes which, as desired, lead to the concentration of the lignin extract - in extreme cases to dry matter - are also suitable here.
- the lignin can also be separated off by adding a non-solvent to the solution of the lignin in alkanolamine.
- the lignin precipitates in the form of solid particles and can be separated from the extraction agent alkanolamine by a suitable solid / liquid separation process, such as filtration, centrifugation, thin-layer evaporation or membrane separation processes.
- the lignin can be separated off, for example, by introducing CO 2 into the lignin / alkanolamine extract, which is optionally concentrated and diluted with water or better with the wash water after the alkanolamine extraction.
- a large part of the alkanolamine is recovered in pure form by concentration using thin-layer evaporation or a suitable other distillation method.
- the rest of the alkanolamine is distilled after the water has been distilled off from the precipitation liquid after the lignin has been separated off, likewise in vacuo. Lignin precipitation is thus accomplished by introducing CO 2 and centrifuging.
- the alkanolamine * CO 2 addition compound which forms with the CO 2 can be decomposed completely again into alkanolamine and CO 2 thermally or by injecting steam.
- the residue consists of lignin, which is greatly degraded in its molecular weight and not chemically modified. This can therefore be used as a chemical raw material, eg for the production of thermosets or polyurethanes.
- the degraded hemicelluloses are in aqueous solution or suspension and can also be used for further purposes.
- the raw pulp has a kappa number of at most about 20, preferably below about 10 on. This corresponds to a lignin content of ⁇ 3 or ⁇ 1.5 mass% and represents an advantageous entry into bleaching.
- a so-called “inclined screw reactor” can be used for the pre-hydrolysis, which is followed by a fiberization and washout that is customary in the production of "cmp" (see above).
- the use of an inclined screw reactor for the pretreatment with NH 4 OH / alkanolamine is preferred, then an above-mentioned fiberization for the thorough lignin extraction in the form of countercurrent extraction.
- these two steps result in a weakly lignin-containing, water-rich fraction which can be used several times, the lignin being concentrated, and in the second case a fraction with a high lignin content and alkanolamine-rich fraction.
- FIG. 1 is the so-called pre-hydrolysis, for example in the form of the steam explosion or of the steam refining process, which is shown after extraction with an aqueous Medium leads to the separation of hemicelluloses.
- ammonia treatment is optionally followed by ammonia treatment.
- it is, for example, a so-called ammonia explosion.
- FIG. 2 A variant of the alkanolamine extraction is shown in detail in FIG. 2. Here is a recycle circuit shown, the recovery of the solvent used or the extractant used. This variant allows an extremely economical mode of operation.
- One advantage is initially in the fact that no sulfur-containing chemicals are used for the wood digestion become. Furthermore, chlorine-containing chemicals do not have to be used for bleaching become.
- the so-called severity factor ie the integral the steam temperature and the exposure time
- the so-called severity factor ie the integral the steam temperature and the exposure time
- One of the advantages of the method according to the invention is that hemicelluloses and lignin in two different process stages, accordingly appropriate and specifically, be separated from the cellulose. This also means that the molecular weight of the cellulose does not decrease so much and the lignin content before Bleach is significantly lower than in the above-mentioned processes and also in the industrially introduced processes (sulfate and sulfite processes).
- the steam used for the pre-hydrolysis of the hemicelluloses can be used for Preheat the extractor. It is used twice. The for that Fibrillating energy is also due to the strong softening of the Biomass very low after extraction. The fraying mostly takes place after the Pre-hydrolysis, in individual cases after the extraction step, without a significant Entry of mechanical energy must be accepted.
- caustic soda as an extractant for lignin, as is the case after the steam explosion or the steam refining process is common.
- the use of caustic soda in particular requires the construction and operation of so-called Recovery systems (recovery) in the pulp mills. Their size is first Line through the economically sensible operation only in certain dimensions of these ancillary systems.
- the recovery consists of a simple vacuum distillation.
- the alkanolamine * CO 2 addition compound which forms with the CO 2 can be decomposed completely again into alkanolamine and CO 2 thermally or by injecting steam. There is no need to recover sodium salts.
- a simple pre-hydrolysis with water makes the alkanolamine extraction so effective that the raw pulp already has an ISO brightness of approx. 50%.
- the alkanolamine extraction can also be carried out without pressure given the low water content of the straw, which allows the use of simple apparatus.
- the biomass must also be of relatively the same size within relatively narrow limits, otherwise for digestion e.g. Larger wood chips are not sufficient in the cooking time are permeated by the white liquor.
- the invention allows Extraction with an alkanolamine with significantly lower liquor ratios (about 3: 1) - especially in continuous operation. This has a positive effect the steam consumption during extraction and recovery.
- the biomass according to the Pre-hydrolysis with steam with low mechanical energy consumption in suitable Refiners or defibrators machined so that during the subsequent extraction with Alkanolamine the effective duration is not affected by diffusion processes.
- Additives to prevent the condensation of the lignin are also not necessary, which saves costs.
- As a pretreatment with chemicals, as with exclusive Use of the steam explosion and steam refining process necessary is, there are no problems with their distribution. Accordingly points the method according to the invention has a very low reject rate (coarse wood components, which are not sufficiently frayed due to a lack of distribution).
- the pre-hydrolysis can be carried out either for total degradation or only slightly Scope can be used, which gives another variation results.
- a multi-stage alkanolamine extraction in the process according to the invention chosen instead of a single-stage, this alternative offers efficiency and efficiency of the process management further advantages.
- the process according to the invention also improves the separation of sugar achieved by fiberization before or after the pre-hydrolysis. Furthermore is a two-stage pre-hydrolysis to improve the effectiveness of the pre-hydrolysis possible. Short dwell times and effective extraction of the broken down sugar result also less furfural formation
- Continuous process control also has advantages: there is no need for displacement one process liquid through another, as is the case with classic pulping technology is necessary in stoves.
- the exchange and washing processes are fewer in stoves effective and take a relatively long time.
- the selectivity is in the displacement in practice so that there is undesirable mixing or blurring Transitions comes, so additional effort in recovery is required becomes.
- Drying can be omitted if small, decentralized units work economically; this is possible with the method according to the invention. This will make the specific Invest and operating costs significantly reduced.
- the method according to the invention also delivers higher yields than other chemical pulp processes; cold alkali extraction to achieve low hemicellulose residues is also not mandatory.
- the bleaching of the product obtained is possible, for example, with peracetic acid a directly subsequent acetylation without changing solvents and one represents high cost savings.
- the DP determination was carried out using the known Cuoxam method.
- wood chips 40 g were in a mixture consisting of liquid ammonia, monoethanolamine and water (80 g: 40 g: 20 g) cooked in a pressure reactor at 140 ° C, then suddenly from the Unload reactor, washed and dried.
- the kappa number was 143, according to the Alkaline extraction of Example 1 was kappa number 129.
- N-methylmonoethanolamine and N, N-dimethylmonoethanolamine have no effect during the extraction, since the nitrogen is substituted by alkyl groups.
- the lignin extraction is therefore significantly improved if an ammonia explosion has occurred.
- adding MEA with the ammonia to the chips before the explosion does not have a positive effect compared to the NH 3 explosion without the addition of MEA.
- the cumulative amounts of lignin extracted are given, expressed in% of the absolute lignin content, for row 1 (100 ° C), row 2 (140 ° C) and row 3 (170 ° C).
- the extraction rate was approximately 45 ml per hour.
- the apparatus used is a pressure-resistant chromatography column, which is compatible with the Wood chips were filled. This was indicated on the electrical heating tapes Brought temperatures; the temperatures were controlled by an electronic Regulation kept constant.
- the monoethanolamine was using a high pressure pump (HPLC) preheated pumped through the wood chips. There were factions of 25 ml each, of which after dilution by a factor of 100 optical densities were measured.
- the pre-hydrolysis conditions (heating time, duration, temperature, type and concentration of acid) can be adjusted in order to achieve the desired residual hemicellulose content.
- the following table shows the status achieved in tests in a laboratory autoclave (heating-up time approx.
- Acetic acid is not necessary for the complete pre-hydrolysis of hemicellulose in beech wood sufficient.
- a hemicellulose content of ⁇ 3 mass% is for beech chips achievable without the addition of acid in the pre-hydrolysis.
- the mannose content is below these conditions ⁇ 1%.
- the ⁇ -cellulose content is ⁇ 96%, what chemical pulp is sufficient - except for acetylation pulp.
- the one required for acetylation pulp Low xylose content ⁇ 2% by mass could, however, be sharper in beech wood Digestion conditions and in eucalyptus achieved with less harsh conditions become. A deterioration in the target sizes when switching to wood chips in original size was not found. They were in larger autoclaves Results even better.
- the yield was 40%, the whiteness 50%.
- Example 21 was repeated, but no prehydrolysis was carried out. The received one Whiteness was 22%.
- the products obtained from the preceding examples were each based on By-products of monoethanolamine examined. It was found that the By-products of monoethanolamine, such as N-methyl-monoethanolamine, N, N-dimethyl-monoethanolamine, N-acetyl-monoethanolamine and N-formyl-monoethanolamine, did not occur or in one case using N-methyl-monoethanolamine only with a share of 0.3% (based on the analyzed MEA lignin extract) templates. The so-called head was used as the analysis method Space gas chromatography used.
Landscapes
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Extraction Or Liquid Replacement (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
- Compounds Of Unknown Constitution (AREA)
Description
| Temperatur [°C] | Druck [bar] | optische Dichte |
| 155 | 3 | 0,48 |
| 180 | 6 | 0,83 |
| 198 | 9 | 0,62 |
| Dauer [Stunden] | optische Dichte |
| 0,5 | 0,154 |
| 1 | 0,33 |
| 2 | 0,48 |
| 3 | 0,47 |
| Vorbehandlung | optische Dichte |
| Ohne Vorhydrolyse | 0,43 |
| mit Vorhydrolyse | 0,47 |
| Vorhydrol. + NH3-Explosion | 0,73 |
| Vorbehandlung | optische Dichte |
| Vorhydrolysiert | 1,50 |
| Vorhydrolysiert + NH3-Explosion | 2,07 |
| Vorhydrolysiert + NH3-Explosion mit MEA | 1,31 |
| Vorbehandlung | optische Dichte |
| Vorhydrolysiert | 0, 33 |
| Vorhydrolysiert + NH3-Explosion | 0,55 |
| Vorhydrolysiert + NH3-Explosion mit MEA | 0,30 |
| Durchgang | Dauer [h] | MEA [ml] | Hackschnitzel [g] | optische Dichte |
| 1. Extraktion | 2 | 110 | 10 | 0,48 |
| 2. Extraktion | 2 | 60 | 5,5 | 0,083 |
| Durchgang | Dauer [h] | MEA [ml] | Hackschnitzel [g] | optische Dichte |
| 1. Extraktion | 3 | 30 | 10 | 0,419 |
| 2. Extraktion | 2 | 30 | 10 | 0,036 |
| Durchgang | Dauer [Min.] | MEA [ml] | Hackschnitzel [g] | optische Dichte |
| 1. Extraktion | 45 | 30 | 10 | 0,266 |
| 2. Extraktion | 45 | 30 | 10 | 0,189 |
| 3. Extraktion | 45 | 30 | 10 | 0,066 |
| Extrahiertes Lignin in % des ursprüngl. im Holz enthal- tenen | Noch im Holz befindliches Lignin | kappa-Zahl | |
| Menge in g | Menge in % | ||
| 100 | 0 | 0 | 0 |
| 90 | 0,44 | 2,2 | 14,7 |
| 80 | 0,88 | 4,4 | 29,3 |
| 70 | 1,32 | 6,6 | 44 |
| 20 | 3,52 | 17,6 | 117,3 |
| 10 | 3,96 | 19,8 | 132 |
| 0 | 4,4 | 22 | 146,7 |
| Zellstoff | Celluloseausbeute | Xylose-Gehalt |
| Solucell hoher Reinheit | 95,9 | 1,9 |
| Zellstoff mit niedrigem Xylose-Gehalt (erfindungsgemäß) | 97,55 | 1,9 |
| Zellstoff | Cellulose-Gehalt | Xylose-Gehalt | DP |
| Solucell hoher Reinheit | 95,9 | 1,9 | 620 |
| Zellstoff mit niedrigem Xylose-Gehalt (erfindungsgemäß) | 98,7 | 1,2 | 750 |
| Zellstoff | Essigsäurerückhaltevermögen % |
| Acetylierzellstoff, kommerziell | 38 |
| Acetylierzellstoff, kommerziell, mit flüssigem NH3 behandelt, dann Austausch NH3 gegen Wasser und schließlich Wasser gegen Eisessig | 77 |
| Zellstoff, never-dried (erfindungsgemäß) | 105 |
| Zellstoff, getrocknet 1h bei 105°C (erfindungsgemäß) | 54 |
| Peak | °2Θ alt | β alt | INT alt | °2Θ neu | β neu | INT neu | INT(F) neu |
| 1 | 16.110 | 4.803 | 353.2 | 15.540 | 3.885 | 303.6 | 11793.8 |
| 2 | 21.000 | 7.000 | 250.0 | 20.901 | 7.808 | 203.6 | 15900.8 |
| 3 | 22.610 | 4.070 | 859.7 | 22.266 | 2.418 | 706.8 | 17088.5 |
| 4 | 34.300 | 1.000 | 30.0 | 34.372 | 2.668 | 72.1 | 1923.7 |
| Untergrund = 47.7 + 2.61*2Θ |
| Peak 1 | 2Θ=15.540° | β=3.885° | INT= | 304 c/s | = 69% |
| Peak 2 | 2Θ=20.901° | β=7.808° | INT= | 204 c/s | = 93% |
| Peak 3 | 2Θ=22.266° | β=2.418° | INT= | 707 c/s | = 100% |
| Peak 4 | 2Θ=34.372° | β=2.668° | INT = | 72 c/s | = 11% |
| Kohlenhydrate In Masse% bezogen auf Trockenmasse | Original Chips (Eucalyptus) | Vorhydrolyse mit unzerkleinerten Chips | Vorhydrolyse mit disc refiner zerkleinerten Chips | Unzerkleinerte Chips nach Waschstufe | Disc refiner zerkleinerte Chips nach Waschstufe | Rohzellstoff aus unzerkleinerten Chips | Rohzellstoff aus Disc refiner zerkleinerten Chips |
| Galaktose | 1,3 | 0,47 | 0,58 | + | - | - | - |
| Glucose | 44,0 | 54,5 | 56,8 | 61,5 | 60,9 | 93,9 | 95,5 |
| Xylose | 11,1 | 4,5 | 5,1 | 3,1 | 2,4 | 2,3 | 2,3 |
| Mannose | 1,0 | 0,63 | 0,64 | 0,65 | + | + | + |
| Monosaccharide gesamt | 57,7 | 60,1 | 63,1 | 65,2 | 63,3 | 96,2 | 97,8 |
| - = nicht detektierbar | |||||||
| - + = unterhalb der Detektionsgrenze (0,3 mg/100 mg) |
| Versuch | Flüssigkeit | FV | T °C | Haltezeit | Cellulose (bestimmt als Glucose) | Xylose | Mannose |
| VH-27 Buche | 0,6% H2SO4 | 3:1 | 160 | 60 | 98,0 | 1,7 | 0,3 |
| VF-4 Fichte | 0,3% H2SO4 | 4:1 | 150 | 60 | 93,9 | 2,7 | 3,4 |
| VH-P-M1 Stroh | Wasser | 6,5:1 | 160 | 180 | 93,7 | 6,1 | 0,2 |
| VE-4 Eucalyptus | 0,3% H2SO4 | 4,5:1 | 150 | 60 | 98,8 | 1,0 | 0,2 |
| Cellulose (als Glucose) | 93,7% |
| Xylose | 6,1% |
| Mannose | 0,2 % |
Claims (26)
- Verfahren zum Auftrennen lignocellulosehaltiger Biomasse, insbesondere von Holz, in die wesentlichen Bestandteile in Form von Lignin, Hemicellulose und Cellulose mit den folgenden Schritten:a) Vorhydrolysieren der lignocellulosehaltigen Biomasse durch Behandlung mit Wasser oder Wasserdampf;b) Extrahieren der durch Vorhydrolysieren gebildeten hydrolysierten Hemicellulose mit einem wässrigen Medium;c) Extrahieren des im Rückstand verbliebenen prozessmodifizierten Lignins mit einem Alkanolamin, Isolieren des Lignins, Rückgewinnung des Alkanolamins, wobei das Alkanolamin nicht durch Alkylgruppen am Stickstoff substituiert ist, undd) Gewinnung eines Celluloserohstoffs.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Vorhydrolyse gemäß Schritt a) nur so weit durchgeführt wird, dass die an Hemicellulosen gebundenen Säuren abspaltbar sind, und gemäB Schritt b) die abgespaltenen Säuren ausgewaschen werden.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass als lignocellulosehaltige Biomasse zerkleinertes bzw. geschreddertes Holz, insbesondere Laub-, Buchen- oder Nadelholz, eingesetzt wird.
- Verfahren nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass als Biomasse Getreidestroh eingesetzt wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass bei 150 bis 190°C, insbesondere 170°C, vorhydrolysiert und danach ein Extrahieren gemäß Schritt c) bei erhöhter Temperatur unterhalb von 170°C, vorzugsweise unter 160°C, insbesondere bei 115 bis 135°C durchgeführt wird, um Chemiezellstoff zu erhalten.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die vorhydrolysierte lignocellulosehaltige Biomasse mechanisch aufgefasert wird, bevor Schritt b) durchgeführt wird.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass vor der Wasserdampfbehandlung von Schritt a) zusätzlich eine saure oder alkalische Vorbehandlung durchgeführt wird.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorhydrolyse gemäß Schritt a) in Form eines Steam-Explosion- oder eines Steam-Refining-Verfahrens durchgeführt wird.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass nach Schritt b) (ein) Lösungsmittel für Lignin zugegeben (wird) werden.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Massenverhältnis von Wasser zu Biomasse (bezogen auf Trockensubstanz) auf 3 : 1 bis 10 : 1, insbesondere 6 : 1, und das Massenverhältnis von Wasserdampf zu Biomasse auf 1 : 1 bis 3 : 1 eingestellt wird.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Wasser vor Schritt b) aus der erhaltenen Masse abgepresst und diese anschließend mechanisch aufgefasert wird.
- Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass die aufgefaserte Masse zusätzlich mit heißem Wasser gewaschen wird.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass nach Schritt b) zusätzlich eine Behandlung mit wässriger Ammoniaklösung, mit Ammoniakgas oder mit flüssigem Ammoniak durchgeführt wird.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass bei einem gegenüber Atmosphärendruck erhöhten Ausgangsdruck mit flüssigem Ammoniak gearbeitet wird.
- Verfahren nach Anspruch 14, dadurch gekennzeichnet, dass die erhaltene Masse noch heiß von der vorangegangenen Dampfbehandlung und Wäsche ist und mit dem flüssigen Ammoniak das der zu behandelnden, von Hemicellulose befreiten Masse zur Verfügung stehende Volumen durch Entspannen unter Senken des Drucks um mindestens 5 bar explosionsartig vergrößert wird.
- Verfahren nach Anspruch 15, dadurch gekennzeichnet, dass das Massenverhältnis flüssiges Ammoniak zu der zu behandelnden Masse (bezogen auf Trockensubstanz) auf 0,1 : 1 bis 4 : 1 eingestellt wird.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in Schritt c) mindestens zwei aufeinanderfolgende Extraktionen mit Alkanolamin durchgeführt werden.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Extrahieren mindestens 1 Stunde lang bei einer Temperatur von 80 bis 220°C erfolgt.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Extraktionsmittel im Schritt c) vorgeheizt wird, insbesondere auf mindestens 80°C.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass als Extraktionsmittel Monoethanolamin eingesetzt wird.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass nach der Extraktion am Rohzellstoff haftende Reste des in einem Alkanolamin gelösten prozessmodifizierten Lignins durch ein Lösungsmittel vollständig entfernt werden.
- Verfahren nach Anspruch 21, dadurch gekennzeichnet, dass der Rest an prozessmodifiziertem Lignin und Alkanolamin im Rohzellstoff mit dem Lösungsmittel durch Wäsche oder Gegenstromwäsche entfernt wird und anschließend das Lösungsmittel durch Destillation von Lisnin und dem Extraktionsmittel Alkanolamin abgetrennt und für einen erneuten Einsatz zurückgewonnen werden kann.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Entfernen des Alkanolamins mit dem darin gelösten prozessmodifizierten Lignin vom Rohzellstoff durch Abpressen oder Abschleudern erfolgt.
- Verfahren nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das prozessmodifizierte Lignin aus dem Alkanolamin durch Zugabe eines Nichtlösemittels ausgefällt und durch Fest-/Flüssigtrennprozesse abgetrennt wird.
- Verfahren nach Anspruch 24, dadurch gekennzeichnet, dass das ausgefällte Lignin durch Filtrieren oder Zentrifugieren vom Alkanolamin abgetrennt wird.
- Verfahren nach Anspruch 24, dadurch gekennzeichnet, dass das prozessmodifizierte Lignin aus dem Alkanolamin in einem Dünnschichtverdampfer oder durch einen Membranprozess abgetrennt wird.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19916347A DE19916347C1 (de) | 1999-04-12 | 1999-04-12 | Verfahren zum Auftrennen lignocellulosehaltiger Biomasse |
| DE19916347 | 1999-04-12 | ||
| PCT/EP2000/003212 WO2000061858A1 (de) | 1999-04-12 | 2000-04-11 | Verfahren zum auftrennen lignocellulosehaltiger biomasse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1190137A1 EP1190137A1 (de) | 2002-03-27 |
| EP1190137B1 true EP1190137B1 (de) | 2003-11-26 |
Family
ID=7904218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00925193A Expired - Lifetime EP1190137B1 (de) | 1999-04-12 | 2000-04-11 | Verfahren zum auftrennen lignocellulosehaltiger biomasse |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP1190137B1 (de) |
| JP (1) | JP2002541355A (de) |
| CN (1) | CN1208514C (de) |
| AT (1) | ATE255187T1 (de) |
| AU (1) | AU756976B2 (de) |
| BR (1) | BR0011169B1 (de) |
| CA (1) | CA2368872C (de) |
| CZ (1) | CZ298831B6 (de) |
| DE (2) | DE19916347C1 (de) |
| ES (1) | ES2213011T3 (de) |
| NO (1) | NO20014939L (de) |
| NZ (1) | NZ515051A (de) |
| PL (1) | PL203363B1 (de) |
| PT (1) | PT1190137E (de) |
| RU (1) | RU2220245C2 (de) |
| SK (1) | SK14392001A3 (de) |
| WO (1) | WO2000061858A1 (de) |
| ZA (1) | ZA200108406B (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023047423A1 (en) * | 2021-09-27 | 2023-03-30 | Fuma Labs Private Limited | Process for treatment of biomass for pulping and biorefinery applications |
Families Citing this family (91)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10049340C1 (de) * | 2000-10-05 | 2002-04-25 | Rhodia Acetow Gmbh | Verfahren zur Herstellung von Holocellulose durch Delignifizieren von lignocellulosehaltiger Biomasse |
| DE10109502A1 (de) | 2001-02-28 | 2002-09-12 | Rhodia Acetow Gmbh | Verfahren zum Abtrennen von Hemicellulosen aus hemicellulosehaltiger Biomasse sowie die mit dem Verfahren erhältliche Biomasse und Hemicellulose |
| DE10145338C1 (de) * | 2001-09-14 | 2003-04-17 | Rhodia Acetow Gmbh | Verfahren zum Abtrennen von Hemicellulosen aus hemicellulosehaltiger Biomasse |
| DE10158120A1 (de) * | 2001-11-27 | 2003-06-18 | Ties Karstens | Verfahren zum Abtrennen von Xylose aus xylanreichen Lignocellulosen, insbesondere Holz |
| CN1806945B (zh) * | 2005-01-20 | 2010-05-12 | 中国科学院过程工程研究所 | 利用秸秆预处理和酶解工艺使秸秆纤维素完全酶解的方法 |
| CN100487059C (zh) * | 2005-01-20 | 2009-05-13 | 中国科学院过程工程研究所 | 利用木质纤维原料制备可降解材料的方法 |
| PT1883731E (pt) | 2005-05-24 | 2016-01-26 | Int Paper Co | Fibras kraft modificadas |
| CA2959268A1 (en) | 2005-07-19 | 2007-01-25 | Inbicon A/S | Method and apparatus for conversion of cellulosic material to ethanol |
| AU2005338842B2 (en) * | 2005-12-07 | 2011-08-11 | Kelly Anthony O'flynn | A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein |
| FI123036B (fi) | 2006-02-10 | 2012-10-15 | Metso Paper Inc | Menetelmä hydrolyysituotteiden talteenottamiseksi |
| FI20065105A0 (fi) * | 2006-02-10 | 2006-02-10 | Metso Paper Inc | Menetelmä hydrolyysituotteiden talteenottamiseksi |
| DE602006019919D1 (de) * | 2006-03-29 | 2011-03-10 | Virginia Tech Intell Prop | Celluloselösungsmittelbasierte fraktionierung von lignocellulose unter mässigen reaktionsbedingungen und eduktrückführung |
| US9206446B2 (en) | 2006-05-01 | 2015-12-08 | Board Of Trustees Of Michigan State University | Extraction of solubles from plant biomass for use as microbial growth stimulant and methods related thereto |
| US8968515B2 (en) | 2006-05-01 | 2015-03-03 | Board Of Trustees Of Michigan State University | Methods for pretreating biomass |
| EP2826869A1 (de) | 2006-05-01 | 2015-01-21 | Board of Trustees of Michigan State University | Verfahren zur Behandlung einer Lignozellulose-Biomasse |
| CA2595484A1 (en) * | 2006-08-07 | 2008-02-07 | John Allan Fallavollita | Process for recovery of holocellulose and near-native lignin from biomass |
| JP2008054640A (ja) * | 2006-09-04 | 2008-03-13 | Univ Of Tokyo | バイオマス原料の処理方法、並びに、これを利用した糖の製造方法及びエタノールの製造方法 |
| US7824521B2 (en) | 2006-12-18 | 2010-11-02 | University Of Maine System Board Of Trustees | Process of treating a lignocellulosic material with hemicellulose pre-extraction and hemicellulose adsorption |
| US7842161B2 (en) * | 2006-12-18 | 2010-11-30 | The University Of Maine System Board Of Trustees | Pre-extraction and solvent pulping of lignocellulosic material |
| CN101743257B (zh) * | 2007-04-19 | 2013-04-10 | 马斯科马公司 | 木质纤维素生物质的联合热化学预处理和精制 |
| CN101790611B (zh) * | 2007-06-20 | 2013-11-20 | 纳格祖那能量私人有限公司 | 分离生物质组分的方法 |
| US7819976B2 (en) * | 2007-08-22 | 2010-10-26 | E. I. Du Pont De Nemours And Company | Biomass treatment method |
| BRPI0817084B1 (pt) | 2007-09-07 | 2019-05-21 | Council Of Scientific & Industrial Research | Processo para o fracionamento de bagaço de cana-de-açúcar em polpa de alfa-celulose superior, xilano e lignina |
| CN101143881B (zh) * | 2007-10-11 | 2011-03-16 | 孔延华 | 一种同时提取半纤维素、纤维素以及木质素并回收酚酸类物质的方法 |
| CN101440108B (zh) * | 2007-11-23 | 2011-04-06 | 中国科学院过程工程研究所 | 一种实现木质纤维类生物质组分分离的常压脱脂粗甘油预处理方法 |
| CN101210033B (zh) * | 2007-12-21 | 2011-09-07 | 武汉工程大学 | 一种植物纤维原料综合利用技术 |
| DE102008013845A1 (de) * | 2008-03-12 | 2009-09-17 | Zylum Beteiligungsgesellschaft Mbh & Co. Patente Ii Kg | Verfahren zur Herstellung von Bioethanol aus lignocellulosischer Biomasse |
| EP2300573B1 (de) * | 2008-06-04 | 2018-10-10 | Inbicon A/S | Vorrichtungen und verfahren zum austragen von vorbehandelter biomasse von bereichen höheren drucks in bereiche niedrigeren drucks |
| KR101657100B1 (ko) * | 2008-10-29 | 2016-09-19 | 삼성전자주식회사 | 리그노셀룰로오스계 바이오매스의 분별방법 및 분별장치 |
| RU2011144375A (ru) * | 2009-04-02 | 2013-05-10 | Оберн Юниверсити | Способ варки целлюлозы для повышения выхода и качества, включающий способы экстракции гемицеллюлозы и обработки лигноцеллюлозных материалов после экстракции гемицеллюлозы |
| DE102009017051A1 (de) | 2009-04-09 | 2010-10-21 | Zylum Beteiligungsgesellschaft Mbh & Co. Patente Ii Kg | Verfahren zur Gewinnung von Zellstoff aus Lignocellulose-haltiger Biomasse |
| WO2010121366A1 (en) * | 2009-04-23 | 2010-10-28 | Greenfield Ethanol Inc. | Separation of reactive cellulose from lignocellulosic biomass with high lignin content |
| WO2011007369A1 (en) * | 2009-07-13 | 2011-01-20 | Chemtex Italia S.R.L. | High temperature lignin separation process |
| CA2760840C (en) | 2009-08-24 | 2014-12-02 | Board Of Trustees Of Michigan State University | Pretreated densified biomass products and methods of making and using same |
| US10457810B2 (en) | 2009-08-24 | 2019-10-29 | Board Of Trustees Of Michigan State University | Densified biomass products containing pretreated biomass fibers |
| US8945245B2 (en) | 2009-08-24 | 2015-02-03 | The Michigan Biotechnology Institute | Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto |
| US9580454B2 (en) | 2009-11-13 | 2017-02-28 | Fpinnovations | Biomass fractionation process for bioproducts |
| EP2333151A1 (de) * | 2009-12-11 | 2011-06-15 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | Neuartiges Verfahren zur Verarbeitung von lignocellulosehaltigem Material |
| CN105525043B (zh) | 2010-01-19 | 2021-03-19 | 瑞恩麦特克斯股份有限公司 | 使用超临界流体从生物质产生可发酵的糖和木质素 |
| MX2012008945A (es) * | 2010-02-03 | 2012-11-30 | Archer Daniels Midland Co | Procedimiento mejorado para el fraccionamiento de biomasa lignocelulosica. |
| WO2011116320A1 (en) | 2010-03-19 | 2011-09-22 | Poet Research, Inc. | System for treatment of biomass to facilitate the production of ethanol |
| EP2547778B1 (de) | 2010-03-19 | 2019-09-04 | POET Research, Inc. | System zur behandlung von biomasse |
| BR112012026710B8 (pt) | 2010-04-19 | 2020-06-23 | Univ Michigan State | método para produzir um produto extraído a partir de biomassa lignocelulósica e método para produzir um produto digerido a partir de biomassa lignocelulósica |
| WO2011142426A1 (ja) * | 2010-05-12 | 2011-11-17 | 本田技研工業株式会社 | リグノセルロース系バイオマスの糖化前処理物の製造方法及びそれに用いる糖化前処理装置 |
| AU2010354974A1 (en) * | 2010-06-10 | 2013-01-24 | Department Of Biotechnology | Process for fractionation of biomass |
| IT1402202B1 (it) | 2010-09-29 | 2013-08-28 | Chemtex Italia S R L Ora Chemtex Italia S P A | Procedimento migliorato per recuperare zuccheri da un flusso di pretrattamento di biomassa lignocellulosica |
| US9932707B2 (en) | 2010-11-05 | 2018-04-03 | Greenfield Specialty Alcohols Inc. | Bagasse fractionation for cellulosic ethanol and chemical production |
| CN103228707B (zh) | 2010-11-05 | 2017-06-09 | 绿源乙醇公司 | 用于纤维素乙醇和化学品生产的蔗渣分级分离 |
| US20120125551A1 (en) * | 2010-11-23 | 2012-05-24 | E. I. Du Pont De Nemours And Company | Biomass pretreatment process for a packed bed reactor |
| US20120125548A1 (en) * | 2010-11-23 | 2012-05-24 | E. I. Du Pont De Nemours And Company | Continuously fed biomass pretreatment process for a packed bed reactor |
| CN103547677B (zh) | 2011-01-18 | 2016-10-12 | 波特研究公司 | 用于生物质水解的体系和方法 |
| CA2806873C (en) * | 2011-05-04 | 2014-07-15 | Renmatix, Inc. | Lignin production from lignocellulosic biomass |
| CN103635628B (zh) * | 2011-06-30 | 2018-03-09 | 纳米绿色生物炼制公司 | 生物质的催化转化 |
| BR112014000351A2 (pt) | 2011-07-07 | 2017-01-10 | Poet Res Inc | “método para tratamento prévio de biomassa lignocelulósica” |
| KR20140072866A (ko) | 2011-07-15 | 2014-06-13 | 그린필드 스페셜티 알콜스 아이엔씨. | 발효 전 향상된 c5/c6 당류 방출을 위한 바이오매스의 조절 |
| US8759498B2 (en) | 2011-12-30 | 2014-06-24 | Renmatix, Inc. | Compositions comprising lignin |
| JP2013143918A (ja) * | 2012-01-13 | 2013-07-25 | Jx Nippon Oil & Energy Corp | 酵素糖化用原料の製造方法、糖の製造方法、並びにエタノールの製造方法 |
| WO2013131015A1 (en) | 2012-03-02 | 2013-09-06 | Board Of Trustees Of Michigan State University | Methods for increasing sugar yield with size-adjusted lignocellulosic biomass particles |
| EP2878349B1 (de) * | 2012-05-03 | 2022-07-06 | Virdia, LLC | Fraktionierung eines Gemisches mittels sequenzieller simulierter Fliessbettchromatographie |
| CN102660884B (zh) * | 2012-05-11 | 2014-06-11 | 南开大学 | 一种采用氨水蒸汽爆破技术处理秸秆制取半纤维素的方法 |
| FI124553B (fi) * | 2012-07-11 | 2014-10-15 | Bln Woods Ltd Ab | Menetelmä biomassan uuttamiseksi |
| CN102864668B (zh) * | 2012-09-18 | 2015-03-11 | 北京林业大学 | 木质纤维素原料预处理方法 |
| FI127582B (en) * | 2014-01-10 | 2018-09-14 | Ab Bln Woods Ltd | Procedure for extracting lignin |
| SE537929C2 (sv) * | 2014-02-11 | 2015-11-24 | Daprox Ab | Raffinöranordning och ett förfarande för raffinering av cellulosamaterial |
| EP4477306A3 (de) * | 2014-05-01 | 2024-12-25 | Renmatix, Inc. | Aufwertung von lignin aus ligninhaltigen rückständen durch reaktive extraktion |
| CN104313930B (zh) * | 2014-09-22 | 2016-08-31 | 洛阳华高轴承科技有限公司 | 一种利用废弃玉米秸秆造纸制浆的工艺方法 |
| CA2962606C (en) | 2014-09-26 | 2019-01-29 | Renmatix, Inc. | Cellulose-containing compositions and methods of making same |
| ES2628239T3 (es) * | 2014-12-01 | 2017-08-02 | S2P Ag Straw - Pulp & Paper | Procedimiento para la fabricación de un fertilizante de licor negro |
| MX2017012913A (es) | 2015-04-10 | 2018-06-06 | Comet Biorefining Inc | Metodos y composiciones para el tratamiento de biomasa celulosica y productos producidos por estos. |
| CN105154986A (zh) * | 2015-08-04 | 2015-12-16 | 江南大学 | 一种碱预处理、低压力蒸汽闪爆与生物酶联合处理综合利用棉秆皮的方法 |
| CN105198939B (zh) * | 2015-09-19 | 2017-10-10 | 北京化工大学 | 一种低分子量木质素的制备方法 |
| CN105672012B (zh) * | 2016-01-27 | 2018-11-06 | 中信格义循环经济有限公司 | 从生物质原料中同时提取半纤维素、纤维素和木质素的方法 |
| CN105780569A (zh) * | 2016-05-19 | 2016-07-20 | 黄德辉 | 非木纤维工业原料的物理制备方法 |
| CN106040702A (zh) * | 2016-06-03 | 2016-10-26 | 合肥原印农业科技有限公司 | 一种农作物秸秆回收制备工艺 |
| FI128486B (en) | 2016-07-01 | 2020-06-15 | Ch Bioforce Oy | Procedure for conversion of fresh biomass |
| WO2018009502A1 (en) | 2016-07-06 | 2018-01-11 | Virdia, Inc. | Methods of refining a lignocellulosic hydrolysate |
| CN106368032B (zh) * | 2016-09-19 | 2018-06-22 | 华南理工大学 | 一种同时制备纤维素纤维和半纤维素溶液的方法 |
| DE102016219719B3 (de) * | 2016-10-11 | 2018-01-25 | Clariant International Ltd. | Verfahren zur Gewinnung von Cellulose, Hemicellulose und Lignin aus Lignocellulose aus pflanzlicher Biomasse |
| KR101736156B1 (ko) | 2016-11-14 | 2017-05-18 | 주식회사 대경에스코 | 급속 열분해용 바이오매스 미분쇄 공정을 포함한 바이오 오일 제조 장치 및 그 방법 |
| BR102018004591B1 (pt) | 2017-03-08 | 2019-11-12 | Univ Michigan State | método de pré-tratamento de biomassa |
| US11440999B2 (en) | 2017-07-07 | 2022-09-13 | Board Of Trustees Of Michigan State University | De-esterification of biomass prior to ammonia pretreatment |
| CA3099535C (en) | 2018-05-10 | 2024-01-16 | Comet Biorefining Inc. | Compositions comprising glucose and hemicellulose and their use |
| CN110894248A (zh) * | 2018-09-12 | 2020-03-20 | 上海昶法新材料有限公司 | 一种从预水解液中提取半纤维素的方法 |
| JP2022532566A (ja) | 2019-05-10 | 2022-07-15 | コメット バイオリファイニング インコーポレイテッド | アラビノキシラン組成物を生成する材料及び方法 |
| SE543253C2 (en) * | 2019-06-26 | 2020-11-03 | Valmet Oy | Method for extracting hemicellulose from lignocellulosic material |
| CA3074194A1 (en) * | 2020-02-28 | 2021-08-28 | Fluid Energy Group Ltd. | Modified sulfuric acid and uses thereof |
| EP4023813A1 (de) | 2020-12-29 | 2022-07-06 | Technische Universität Wien | Verfahren zur herstellung von produkten auf basis von holz als rohstoff |
| EP4023812A1 (de) * | 2020-12-29 | 2022-07-06 | MM BOARD & PAPER GmbH | Verfahren zur herstellung von produkten auf basis von holz als rohstoff |
| CN116178576A (zh) * | 2022-12-12 | 2023-05-30 | 国科绿海(天津)科技发展有限公司 | 一种金竹草全质化多产物的分离处理方法 |
| US12428783B1 (en) | 2023-05-04 | 2025-09-30 | United Arab Emirates University | Lignin removal from lignocellulosic waste using rejected brine solution |
| CN116856188A (zh) * | 2023-07-12 | 2023-10-10 | 湖南山润油茶科技发展有限公司 | 一种从油茶蒲中制备纤维素纤维的方法及所制备的纤维素纤维 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2192202A (en) * | 1936-10-23 | 1940-03-05 | Floyd C Peterson | Pulping process |
| BE579421A (fr) * | 1958-11-27 | 1959-10-01 | Avebene | Procédés de fabrication et utilisation de condensats de lignine |
| US4397712A (en) * | 1975-02-12 | 1983-08-09 | New Fibers International | Semi-chemical pulping process |
| DE2803465A1 (de) * | 1978-01-27 | 1979-08-02 | Hans Dipl Ing Knauth | Verfahren zur erzeugung von zellstoff aus pflanzlichen faserrohstoffen unter verwendung organischer loesungsmittel - hydrosolvverfahren |
| US4259151A (en) * | 1978-11-22 | 1981-03-31 | New Fibers International | Pulping apparatus |
| CA1173380A (en) * | 1980-02-19 | 1984-08-28 | Michael I. Sherman | Acid hydrolysis of biomass for ethanol production |
| FR2518573A1 (en) * | 1981-12-21 | 1983-06-24 | British Petroleum Co | Saccharification of lignocellulosic material - involves pretreatment with delignifying solvent comprising an amine, pref. ethanolamine, and enzymatic hydrolysis |
| US4548675A (en) * | 1983-05-16 | 1985-10-22 | New Fibers International | Nonsulfur chemimechanical pulping process |
| CA1232109A (en) * | 1984-12-11 | 1988-02-02 | Peter K. Kauppi | Pulping process |
| SU1567700A1 (ru) * | 1988-05-04 | 1990-05-30 | Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности | Способ предварительного гидролиза древесины перед сульфатной варкой целлюлозы |
| CA1322366C (en) * | 1989-09-29 | 1993-09-21 | Quang A. Nguyen | Continuous leaching of lignin or hemicellulose and lignin from steam pretreated lignocellosic particulate material |
| US5730837A (en) * | 1994-12-02 | 1998-03-24 | Midwest Research Institute | Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars |
| DE19730486C2 (de) * | 1997-07-16 | 2000-02-24 | Rhodia Acetow Ag | Verfahren zur Behandlung von lignocellulosehaltiger Biomasse |
-
1999
- 1999-04-12 DE DE19916347A patent/DE19916347C1/de not_active Expired - Fee Related
-
2000
- 2000-04-11 CZ CZ20013627A patent/CZ298831B6/cs not_active IP Right Cessation
- 2000-04-11 CA CA002368872A patent/CA2368872C/en not_active Expired - Fee Related
- 2000-04-11 SK SK1439-2001A patent/SK14392001A3/sk unknown
- 2000-04-11 WO PCT/EP2000/003212 patent/WO2000061858A1/de not_active Ceased
- 2000-04-11 PT PT00925193T patent/PT1190137E/pt unknown
- 2000-04-11 ES ES00925193T patent/ES2213011T3/es not_active Expired - Lifetime
- 2000-04-11 JP JP2000610900A patent/JP2002541355A/ja active Pending
- 2000-04-11 BR BRPI0011169-4A patent/BR0011169B1/pt not_active IP Right Cessation
- 2000-04-11 AT AT00925193T patent/ATE255187T1/de not_active IP Right Cessation
- 2000-04-11 AU AU43995/00A patent/AU756976B2/en not_active Ceased
- 2000-04-11 CN CNB008061629A patent/CN1208514C/zh not_active Expired - Fee Related
- 2000-04-11 EP EP00925193A patent/EP1190137B1/de not_active Expired - Lifetime
- 2000-04-11 DE DE50004573T patent/DE50004573D1/de not_active Expired - Lifetime
- 2000-04-11 PL PL351393A patent/PL203363B1/pl unknown
- 2000-04-11 NZ NZ515051A patent/NZ515051A/xx unknown
- 2000-04-11 RU RU2001130355/12A patent/RU2220245C2/ru not_active IP Right Cessation
-
2001
- 2001-10-10 NO NO20014939A patent/NO20014939L/no not_active Application Discontinuation
- 2001-10-12 ZA ZA200108406A patent/ZA200108406B/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023047423A1 (en) * | 2021-09-27 | 2023-03-30 | Fuma Labs Private Limited | Process for treatment of biomass for pulping and biorefinery applications |
Also Published As
| Publication number | Publication date |
|---|---|
| NO20014939L (no) | 2001-12-04 |
| BR0011169B1 (pt) | 2011-02-22 |
| CA2368872A1 (en) | 2000-10-19 |
| CZ20013627A3 (cs) | 2003-10-15 |
| BR0011169A (pt) | 2002-02-19 |
| DE50004573D1 (de) | 2004-01-08 |
| EP1190137A1 (de) | 2002-03-27 |
| CA2368872C (en) | 2005-11-29 |
| SK14392001A3 (sk) | 2002-04-04 |
| DE19916347C1 (de) | 2000-11-09 |
| NO20014939D0 (no) | 2001-10-10 |
| CZ298831B6 (cs) | 2008-02-20 |
| PL203363B1 (pl) | 2009-09-30 |
| PT1190137E (pt) | 2004-04-30 |
| ZA200108406B (en) | 2002-12-24 |
| CN1352716A (zh) | 2002-06-05 |
| ATE255187T1 (de) | 2003-12-15 |
| JP2002541355A (ja) | 2002-12-03 |
| AU4399500A (en) | 2000-11-14 |
| NZ515051A (en) | 2003-03-28 |
| PL351393A1 (en) | 2003-04-07 |
| ES2213011T3 (es) | 2004-08-16 |
| CN1208514C (zh) | 2005-06-29 |
| RU2220245C2 (ru) | 2003-12-27 |
| WO2000061858A1 (de) | 2000-10-19 |
| AU756976B2 (en) | 2003-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1190137B1 (de) | Verfahren zum auftrennen lignocellulosehaltiger biomasse | |
| DE2737118C2 (de) | ||
| EP0584675B1 (de) | Holzaufschluss mit Essigsäure unter Zusatz von Ameisensäuren | |
| DE2732289C2 (de) | ||
| WO2003046227A1 (de) | Verfahren zum abtrennen von xylose aus xylanreichen lignocellulosen, insbesondere holz | |
| DE2732327C2 (de) | ||
| DE2027319B2 (de) | Verfahren zur Herstellung von chemisch gut löslichem Zellstoff | |
| DE102009017051A1 (de) | Verfahren zur Gewinnung von Zellstoff aus Lignocellulose-haltiger Biomasse | |
| DE102016225827B4 (de) | Zweistufiges Aufschlussverfahren zur chemischen Fraktionierung von Lignocellulose | |
| DE3445132C2 (de) | ||
| DE19856582C1 (de) | Verfahren zur Gewinnung von Chemiezellstoff aus Hackschnitzeln | |
| EP2029806A2 (de) | Verfahren zum herstellen von faserstoff | |
| DE10145338C1 (de) | Verfahren zum Abtrennen von Hemicellulosen aus hemicellulosehaltiger Biomasse | |
| DE102008013845A1 (de) | Verfahren zur Herstellung von Bioethanol aus lignocellulosischer Biomasse | |
| DE2920731A1 (de) | Verfahren zur chemischen umwandlung von lignocellulose unter abtrennung von fasern davon | |
| EP4291708B1 (de) | Verfahren für ein chemisch unterstütztes mechanisches aufschlussverfahren von hackschnitzeln bzw. hackspänen | |
| DE3227843C2 (de) | ||
| WO2009015699A1 (de) | Lignocellulosischer faserstoff aus einjahrespflanzen | |
| DE10049340C1 (de) | Verfahren zur Herstellung von Holocellulose durch Delignifizieren von lignocellulosehaltiger Biomasse | |
| DE2001997A1 (de) | Verfahren zum Aufschliessen von lignozellulosischem Material | |
| WO2007140839A2 (de) | Verfahren zum herstellen von faserstoff aus holz | |
| AT398990B (de) | Verfahren zur hydrolyse von pflanzenmaterialien | |
| DE3423024A1 (de) | Holzaufschluss mit essigsaeure und chlorethanol | |
| EP4269687A1 (de) | Verfahren zur herstellung von zellstoff und zur gewinnung von lignin aus einer lignocellulose aus rohstoffpflanzen der pflanzengattung miscanthus | |
| EP4308651A1 (de) | Verfahren zur fraktionierenden auftrennung von lignin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20011026 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO PAYMENT 20011026;SI PAYMENT 20011026 |
|
| 17Q | First examination report despatched |
Effective date: 20021107 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Extension state: RO SI |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20031126 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031126 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031126 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031126 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 50004573 Country of ref document: DE Date of ref document: 20040108 Kind code of ref document: P |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040226 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040226 |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040311 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040411 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040411 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040430 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040430 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040430 |
|
| REG | Reference to a national code |
Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 20040219 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20031126 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2213011 Country of ref document: ES Kind code of ref document: T3 |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| BERE | Be: lapsed |
Owner name: *RHODIA ACETOW G.M.B.H. Effective date: 20040430 |
|
| 26N | No opposition filed |
Effective date: 20040827 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20050407 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20050421 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20050422 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060411 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060411 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060412 |
|
| EUG | Se: european patent has lapsed | ||
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20060411 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 50004573 Country of ref document: DE Owner name: ZYLUM BETEILIGUNGSGESELLSCHAFT MBH & CO. PATEN, DE Free format text: FORMER OWNER: RHODIA ACETOW GMBH, 79108 FREIBURG, DE Effective date: 20130221 Ref country code: DE Ref legal event code: R082 Ref document number: 50004573 Country of ref document: DE Representative=s name: MEISSNER, BOLTE & PARTNER GBR, DE Effective date: 20130221 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP Owner name: ZYLUM BETEILIGUNGSGESELLSCHAFT MBH & CO. PATEN, DE Effective date: 20130408 |
|
| REG | Reference to a national code |
Ref country code: PT Ref legal event code: PC4A Owner name: ZYLUM BETEILIGUNGSGESELLSCHAFT MBH & CO. PATEN, DE Effective date: 20131007 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: ZYLUM BETEILIGUNGSGESELLSCHAFT MBH &CO PATENTE II Effective date: 20131015 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20140626 Year of fee payment: 15 Ref country code: FR Payment date: 20140430 Year of fee payment: 15 Ref country code: PT Payment date: 20140407 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20140724 Year of fee payment: 15 |
|
| REG | Reference to a national code |
Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20151012 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50004573 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151103 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20151231 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151012 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150430 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20160526 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150412 |
