NO136902B - PROCEDURES FOR THE PREPARATION OF A PREPRODUCT FROM A CELLULLOSE-CONTAINING MATERIAL. - Google Patents
PROCEDURES FOR THE PREPARATION OF A PREPRODUCT FROM A CELLULLOSE-CONTAINING MATERIAL. Download PDFInfo
- Publication number
- NO136902B NO136902B NO761640A NO761640A NO136902B NO 136902 B NO136902 B NO 136902B NO 761640 A NO761640 A NO 761640A NO 761640 A NO761640 A NO 761640A NO 136902 B NO136902 B NO 136902B
- Authority
- NO
- Norway
- Prior art keywords
- cellulose
- ozone
- containing material
- cellullose
- preproduct
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 8
- 239000001913 cellulose Substances 0.000 claims description 13
- 229920002678 cellulose Polymers 0.000 claims description 13
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229920005610 lignin Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 150000001720 carbohydrates Chemical class 0.000 claims description 2
- 235000014633 carbohydrates Nutrition 0.000 claims description 2
- 239000002243 precursor Substances 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 claims 1
- 235000019621 digestibility Nutrition 0.000 description 7
- 239000010902 straw Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000282849 Ruminantia Species 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012084 conversion product Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004459 forage Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 239000012464 large buffer Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 210000004798 organs belonging to the digestive system Anatomy 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Landscapes
- Saccharide Compounds (AREA)
Description
Den foreliggende oppfinnelse angår en fremgangsmåte til fremstilling av et forprodukt fra celluloseholdig materiale ved delvis nedbrytning av lignin/cellulose-bindingene og i det minste delvis omdannelse av cellulosen til lett fordøyelige karbohydrater. The present invention relates to a method for producing a precursor from cellulose-containing material by partially breaking down the lignin/cellulose bonds and at least partially converting the cellulose into easily digestible carbohydrates.
En slik fremgangsmåte er kjent fra norsk utlegningsskrift Such a procedure is known from Norwegian interpretation documents
nr. 132 374. Ifølge dette utlegningsskrift foregår omdannelsen i fravær av alkaliske stoffer i mengder som vesentlig kan nøytralisere de sure omdannelsesprodukter, slik at omdannelsen forløper i stadig surere miljø. Ifølge både dette utlegningsskrift og tid-ligere kjent teknikk (se f.eks. NO-PS 6 7 16 7) foregår behandlingen ved forhøyet temperatur og ved hjelp av oksygen med forhøyet trykk. Et slikt forhøyet trykk medfører tekniske ulemper når det gjelder både konstruksjonen av produksjonsutstyret og sikker-hetsmessige forhold. no. 132 374. According to this explanatory document, the conversion takes place in the absence of alkaline substances in quantities which can substantially neutralize the acidic conversion products, so that the conversion takes place in an increasingly acidic environment. According to both this specification and previously known technology (see e.g. NO-PS 6 7 16 7), the treatment takes place at elevated temperature and with the help of oxygen at elevated pressure. Such an elevated pressure entails technical disadvantages in terms of both the construction of the production equipment and safety-related conditions.
Hensikten med den foreliggende oppfinnelse er således å The purpose of the present invention is thus to
skaffe en fremgangsmåte av den innledningsvis angitte art som ikke anvender forhøyet trykk. provide a method of the nature indicated at the outset which does not use elevated pressure.
Ifølge oppfinnelsen er det overraskende funnet at det ved behandling av cellulosematerialet med ozon ved atmosfæretrykk kan oppnås lignende gode fordøyelighetsegenskaper som beskrevet i norsk utlegningsskrift nr. 132 374. Forøvrig kan fremgangsmåten ifølge oppfinnelsen med fordel utføres som beskrevet i det nevnte utlegningsskri ft. According to the invention, it has surprisingly been found that by treating the cellulose material with ozone at atmospheric pressure, similar good digestibility properties can be achieved as described in Norwegian explanatory document no. 132 374. Otherwise, the method according to the invention can be advantageously carried out as described in the aforementioned explanatory document.
Ifølge et ytterligere trekk ved oppfinnelsen kan behandlingen foregå i relativt tørr tilstand av cellulosematerialet. Dette medfører den vesentlige fordel at der unngås kostbar tørking etter behandlingen. According to a further feature of the invention, the treatment can take place in a relatively dry state of the cellulose material. This entails the significant advantage that costly drying after treatment is avoided.
Med "relativt tørr tilstand" menes et tørrstoffinhold By "relatively dry state" is meant a dry matter content
på minst 15%. Dette er vesentlig tørrere enn vanlig, idet behandling av cellulosemasse vanligvis foregår ved et tørrstoff-innhold på 0,5 - 5%. Det er ikke praktisk å benytte et tørrstoff-innhold på over 90%. of at least 15%. This is significantly drier than usual, as the processing of cellulose pulp usually takes place at a dry matter content of 0.5 - 5%. It is not practical to use a dry matter content of more than 90%.
Ved et tørrstoffinnhold på 85% eller mer kan produktet lagres uten With a dry matter content of 85% or more, the product can be stored without
at det angripes av mikroorganismer. that it is attacked by microorganisms.
Behandlingen av cellulosematerialet kan utføres i et tempera-turområde fra temperaturer under omgivelsestemperatur til svakt for-høyede temperaturer (opp til ca. 100°C). The treatment of the cellulose material can be carried out in a temperature range from temperatures below ambient temperature to slightly elevated temperatures (up to approx. 100°C).
Fremgangsmåten ifølge oppfinnelsen vil i det etterfølgende bli nærmere belyst ved hjelp av eksempler. The method according to the invention will subsequently be explained in more detail by means of examples.
Eksempel 1 Example 1
Malt halm fra en slaghammermølle med hulldiameter på 8 mm i såldet ble behandlet med ozon i 15 min., hvilket tilsvarte 1% ozon.Tørrstoffinnholdet var 40%, og behandlingen foregikk ved en temperatur på 20°C. Ground straw from an impact hammer mill with a hole diameter of 8 mm in the sieve was treated with ozone for 15 min., which corresponded to 1% ozone. The dry matter content was 40%, and the treatment took place at a temperature of 20°C.
pH-verdien i vannuttrekk av det behandlede materiale ble målt til 5,5. Fordøyeligheten målt in vitro var 52,0%. The pH value in water extraction of the treated material was measured to be 5.5. The digestibility measured in vitro was 52.0%.
Eksempel 2 Example 2
Malt halm ble behandlet med ozon i 15 min., tilsvarende 1% ozon.Tørrstoffinnholdet var 60% og behandlingstemperaturen 22°C. Ground straw was treated with ozone for 15 min., corresponding to 1% ozone. The dry matter content was 60% and the treatment temperature 22°C.
pH-verdien i vannuttrekk ble målt til 4,9, og fordøyeligheten var 5 7%. The pH value in the water extract was measured at 4.9, and the digestibility was 5 7%.
Eksempel 3 Example 3
Malt halm ble behandlet med ozon i 45 min., hvilket tilsvarte Ground straw was treated with ozone for 45 min., which corresponded to
3%ozon. Behandlingstemperaturen var 22°C og tørrstoffinnholdet 40%. 3% ozone. The treatment temperature was 22°C and the dry matter content 40%.
pH-verdien i vannuttrekk ble målt til 5,0. Fordøyeligheten var 56,8%. The pH value in the water extract was measured at 5.0. Digestibility was 56.8%.
Eksempel 4 Example 4
Malt halm ble behandlet med 3% ozon ved en temperatur på 22°C og et tørrstoffinnhold på 60%. Ground straw was treated with 3% ozone at a temperature of 22°C and a dry matter content of 60%.
pH-verdien i vannekstrakt ble målt til 4,2, og fordøyeligheten var 58,6%. Til sammenligning er fordøyeligheten av ubehandlet halm 46-47%. The pH value in the water extract was measured at 4.2, and the digestibility was 58.6%. In comparison, the digestibility of untreated straw is 46-47%.
Fremgangsmåten ifølge oppfinnelsen er ikke begrenset til det som fremgår av de spesielt angitte eksempler. Man kan således benytte et hvilket som helst ligninholdig cellulosemateriale, f.eks. sagflis, avispapir etc. Ozonbehandlingen foregår som nevnt uten over-trykk. Der kan anvendes forskjellige temperaturer fra nedkjølt tilstand og opp til ca. 100°C alt etter hvilken reaksjonshastighet som ønskes. The method according to the invention is not limited to what is apparent from the specifically stated examples. You can thus use any lignin-containing cellulose material, e.g. sawdust, newspaper etc. As mentioned, the ozone treatment takes place without overpressure. Different temperatures can be used, from a chilled state and up to approx. 100°C depending on which reaction rate is desired.
Produktets surhetsgrad har som regel ingen negativ innflytelse på fordøyeligheten av for for drøvtyggere på grunn av den store bufferkapasitet som disse dyr har i sine fordøyelsesorganer. Det kan imidlertid være fordelaktig med en viss nøytralisering med f.eks. ammoniakk, som også gir foret et nitrogeninnhold. Dette nitrogen kan som kjent drøvtyggere benytte til oppbygging av aminosyrer, så bruken av kostbart proteinfor kan reduseres. The acidity of the product usually has no negative influence on the digestibility of forage for ruminants due to the large buffer capacity that these animals have in their digestive organs. However, it may be advantageous to have a certain neutralization with e.g. ammonia, which also gives the feed a nitrogen content. As is known, ruminants can use this nitrogen to build up amino acids, so the use of expensive protein feed can be reduced.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO761640A NO136902C (en) | 1976-05-12 | 1976-05-12 | PROCEDURES FOR PREPARING A PREPRODUCT FROM A CELLULLOSE-CONTAINING MATERIAL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO761640A NO136902C (en) | 1976-05-12 | 1976-05-12 | PROCEDURES FOR PREPARING A PREPRODUCT FROM A CELLULLOSE-CONTAINING MATERIAL |
Publications (3)
Publication Number | Publication Date |
---|---|
NO761640L NO761640L (en) | 1977-08-20 |
NO136902B true NO136902B (en) | 1977-08-22 |
NO136902C NO136902C (en) | 1977-11-30 |
Family
ID=19882905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO761640A NO136902C (en) | 1976-05-12 | 1976-05-12 | PROCEDURES FOR PREPARING A PREPRODUCT FROM A CELLULLOSE-CONTAINING MATERIAL |
Country Status (1)
Country | Link |
---|---|
NO (1) | NO136902C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985000133A1 (en) * | 1983-06-23 | 1985-01-17 | Bioteknisk Institut | A process and an apparatus for chemical treatment of bulky organic materials, such as straw and other biomass, with volatile chemicals |
FR2603775A1 (en) * | 1986-09-17 | 1988-03-18 | Agri Poitou Ste Indle Agric Po | Process for enhancing the digestibility of straw and other lignocellulosic materials for ruminants, using ozone treatment |
FR2826309A1 (en) * | 2001-06-22 | 2002-12-27 | Goemar Lab Sa | TREATMENT OF LIGNOCELLULOSIC OZONE SUBSTRATES |
-
1976
- 1976-05-12 NO NO761640A patent/NO136902C/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985000133A1 (en) * | 1983-06-23 | 1985-01-17 | Bioteknisk Institut | A process and an apparatus for chemical treatment of bulky organic materials, such as straw and other biomass, with volatile chemicals |
FR2603775A1 (en) * | 1986-09-17 | 1988-03-18 | Agri Poitou Ste Indle Agric Po | Process for enhancing the digestibility of straw and other lignocellulosic materials for ruminants, using ozone treatment |
FR2826309A1 (en) * | 2001-06-22 | 2002-12-27 | Goemar Lab Sa | TREATMENT OF LIGNOCELLULOSIC OZONE SUBSTRATES |
WO2003000070A1 (en) * | 2001-06-22 | 2003-01-03 | Laboratoires Goemar S.A. | Treatment of lignocellulosic substrates with ozone |
Also Published As
Publication number | Publication date |
---|---|
NO761640L (en) | 1977-08-20 |
NO136902C (en) | 1977-11-30 |
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