EP1520900A1 - A method of gasifying liquid pyrolysis products - Google Patents

A method of gasifying liquid pyrolysis products Download PDF

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Publication number
EP1520900A1
EP1520900A1 EP04018777A EP04018777A EP1520900A1 EP 1520900 A1 EP1520900 A1 EP 1520900A1 EP 04018777 A EP04018777 A EP 04018777A EP 04018777 A EP04018777 A EP 04018777A EP 1520900 A1 EP1520900 A1 EP 1520900A1
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EP
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Prior art keywords
pyrolysis
organic
bio
aqueous phase
oil
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EP04018777A
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German (de)
French (fr)
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EP1520900B1 (en
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Edmund Dr. Henrich
Eckhard Prof.Dr. Dinjus
Dietrich Meier
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Forschungszentrum Karlsruhe GmbH
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Forschungszentrum Karlsruhe GmbH
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/466—Entrained flow processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
    • C10J3/60—Processes
    • C10J3/64—Processes with decomposition of the distillation products
    • C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0916—Biomass
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0916—Biomass
    • C10J2300/092—Wood, cellulose
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0943—Coke
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0983—Additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1696—Integration of gasification processes with another plant or parts within the plant with phase separation, e.g. after condensation

Definitions

  • the invention relates to a process for the gasification of pyrolysis condensates according to the first claim.
  • the pyrolysis is a good way. Especially wood waste, but also other dry lignocellulosic waste, can be achieved by rapid pyrolysis, in which the waste for a few Seconds to high temperatures, effectively convert to a so-called bio-oil.
  • the bio-oil so obtained has some crucial Disadvantage. Above all, it is not stable and storable. Much more after a more or less long time, it tends to segregate, wherein an aqueous and an organic phase form.
  • the aqueous phase can be more or less large quantities water-soluble organic compounds, in particular Acetic acid, alcohols and other hydrocarbons Oxygen or other heteroatoms.
  • the bio-oil can be used in a carburetor, especially in an airstream pressure carburetor be implemented to a higher quality To obtain energy sources.
  • the bio-oil in the air flow gasifier with pure oxygen in substoichiometric Ratio implemented.
  • the invention is therefore based on the object, a method for the gasification of pyrolysis condensates, in which the Flugstromvergaser can be safely operated.
  • the other Claims become preferred embodiments of the method specified.
  • the basic idea of the invention is demixing of bio-oil in order to obtain a safe
  • the bio-oil separated into an aqueous and an organic phase become.
  • the organic phase contains sufficient in each case high calorific value to dangerous operating conditions in the To avoid entrainment gasifier; It therefore becomes continuous and fed without interruption the Flugstromvergaser.
  • the aqueous phase is fed separately into the entrained flow gasifier, it is irrelevant whether the feed is continuous or intermittently - at intervals, for example. This way it can not become a superstoichiometric Concentration of oxygen in the carburetor come.
  • the feed can be in two different feed nozzles, but also take place in a common feed nozzle.
  • the separation of the bio-oil into the two phases is preferred carried out in such a way that the organic phase at best a low water content, definitely a water content below 25, better below 20 wt .-%.
  • the water content In contrast, the aqueous phase is preferably at least 50% by weight.
  • the two phases can be among these Conditions are stored for a long time and are no longer prone to a new phase separation.
  • the separation of the bio-oil into the two phases is preferably carried out by fractional condensation during generation of the Bio oils in the fast pyrolysis.
  • the fast pyrolysis carried out with lignocellulose, taking the lignocellulose with sand or another suitable heat carrier, the a temperature of 500 ° C to 600 ° C, for the duration from 1 to 10 seconds.
  • the educated Bio-oil is subjected to the mentioned fractional condensation, so that the described two phases arise. alternative could bio-oil by prolonged storage and decanting in two phases are separated.
  • Both the organic and the aqueous phase prove as long-term stable, so that against a longer, separate Storage no safety concerns exist. Both phases can with or without the addition of 3% by weight straw ash at room temperature for example, over a period of 15 months be stored in sealed gas cylinders, without that a significant segregation occurs. Composition, Density, calorific value and viscosity remain over the storage period practically the same.
  • one or both phases can be before the feed in the gasifier powdered pyrolysis and / or a Slag fur formers are mixed.
  • the pyrolysis coke stabilized the operation of the carburetor because of the additional Fuel while through the slag fur builder the interior carburetor against corrosive and aggressive conditions is protected.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Method for gasification of pyrolysis condensates comprises: (a) separating the condensate into a liquid organic and a liquid aqueous phase; (b) feeding the two phases separately or together, along with a sub-stoichiometric amount of oxygen into a gasifier, the organic phase being fed continuously into it.

Description

Die Erfindung betrifft ein Verfahren zur Vergasung von Pyrolysekondensaten gemäß dem ersten Patentanspruch.The invention relates to a process for the gasification of pyrolysis condensates according to the first claim.

Als Energieträger ist aus Umweltschutzgründen seit einiger Zeit Biomasse, also Abfall aus der Land- und Forstwirtschaft, insbesondere Holzabfall, von besonderem Interesse. Da aus technischer Sicht flüssige und gasförmige Energieträger bevorzugt werden, gibt es eine Reihe von Versuchen, die feste, umständlich zu handhabende Biomasse in solche Energieträger zu konvertieren.As an energy source is for environmental reasons for some Time biomass, ie waste from agriculture and forestry, especially wood waste, of particular interest. Out there technical point of view preferred liquid and gaseous energy sources There are a number of attempts that are solid, cumbersome to be handled biomass in such energy sources convert.

Dabei ist die Pyrolyse ein gut geeigneter Weg. Vor allem Holzabfälle, aber auch andere trockene Lignocellulose-Abfälle, lassen sich durch Schnellpyrolyse, bei der die Abfälle für wenige Sekunden auf hohe Temperaturen erhitzt werden, effektiv in ein sogenanntes Bioöl konvertieren.The pyrolysis is a good way. Especially wood waste, but also other dry lignocellulosic waste, can be achieved by rapid pyrolysis, in which the waste for a few Seconds to high temperatures, effectively convert to a so-called bio-oil.

Leider hat das so gewonnene Bioöl einige entscheidende Nachteile. Es ist vor allem nicht stabil und lagerfähig. Vielmehr neigt es nach mehr oder weniger langer Zeit zur Entmischung, wobei sich eine wässrige und eine organische Phase bilden. Die wässrige Phase kann mehr oder weniger große Mengen wasserlöslicher organischer Verbindungen enthalten, insbesondere Essigsäure, Alkohole und andere Kohlenwasserstoffe mit Sauerstoff oder weiteren Heteroatomen.Unfortunately, the bio-oil so obtained has some crucial Disadvantage. Above all, it is not stable and storable. Much more after a more or less long time, it tends to segregate, wherein an aqueous and an organic phase form. The aqueous phase can be more or less large quantities water-soluble organic compounds, in particular Acetic acid, alcohols and other hydrocarbons Oxygen or other heteroatoms.

Das Bioöl kann in einem Vergaser, insbesondere in einem Flugstrom-Druckvergaser umgesetzt werden, um einen höherwertigen Energieträger zu erhalten. Hierbei wird das Bioöl im Flugstromvergaser mit reinem Sauerstoff in unterstöchiometrischem Verhältnis umgesetzt. The bio-oil can be used in a carburetor, especially in an airstream pressure carburetor be implemented to a higher quality To obtain energy sources. Here, the bio-oil in the air flow gasifier with pure oxygen in substoichiometric Ratio implemented.

Es hat sich jedoch gezeigt, dass bei der Einspeisung des Bioöls in den Flugstromvergaser gravierende Sicherheitsprobleme auftauchen können. Diese Sicherheitsprobleme hängen mit der erwähnten Neigung des Bioöls zur Entmischung zusammen. Da das Bioöl zur Vergasung in einem Tank bevorratet werden muss, besteht die Gefahr, dass aus dem Tank für kürzere oder längere Zeit ausschließlich die wässrige Phase des Bioöls entnommen wird. Die Gefahr besteht insbesondere dann, wenn der Tankinhalt nicht kontinuierlich und nicht ausreichend effizient durchmischt werden kann. Wegen der kurzen Verweilzeit des Bioöls im Flugstromvergaser - typischerweise einige Sekunden - tritt dabei ein Betriebszustand ein, in dem der Sauerstoff ausschließlich mit der wässrigen Phase in Berührung kommt.However, it has been shown that in the feed of bio-oil in the Flugstromvergaser serious security problems can emerge. These security problems depend on the mentioned tendency of the bio-oil to segregation together. Since that Bio-oil for gasification in a tank needs to be stocked exists the danger of leaving the tank for shorter or longer Time taken exclusively the aqueous phase of bio-oil becomes. The danger exists in particular if the tank contents not continuous and not efficient enough can be mixed. Because of the short residence time of the bio-oil in the air flow gasifier - typically a few seconds - enters an operating state in which the oxygen comes into contact exclusively with the aqueous phase.

An sich braucht sich dabei nicht unbedingt ein gefährlicher Betriebszustand einzustellen. Enthält die wässrige Phase eine ausreichend hohe Menge an brennbaren organischen Verbindungen, besteht keine Gefahr. Äußerst gefährlich ist es jedoch, wenn die wässrige Phase einen niedrigen Heizwert aufweist, somit im Wesentlichen nur aus Wasser besteht und kaum brennbare Verbindungen in gelöster Form enthält. Dann stellt sich im Flugstromvergaser für einige Zeit ein Sauerstoffüberschuss ein, der in Folge der Vermischung zuvor erzeugtem Synthesegas zur Explosion führen kann. Da die Zusammensetzung des Bioöls und damit die Zusammensetzung der wässrigen Phase je nach der Art der Ausgangs-Biomasse variiert, lässt sich nicht zuverlässig vorhersagen, ob die erwähnte Gefahr besteht. Hinzu kommt, dass die Zusammensetzungen der organischen und der wässrigen Phase je nach Art der Lagerung bei ein und demselben Bioöl unterschiedlich sein können, etwa weil sich niedrig siedende Bestandteile verflüchtigt haben.In itself it does not necessarily need a dangerous one Set operating status. Does the aqueous phase contain a sufficiently high amount of combustible organic compounds, there is no danger. However, it is extremely dangerous if the aqueous phase has a low calorific value, thus in the Essentially consists only of water and hardly combustible compounds in dissolved form. Then turns in the entrained flow gasifier an excess of oxygen for some time, the result of mixing previously generated synthesis gas for Can cause an explosion. Because the composition of bio-oil and thus the composition of the aqueous phase depending on the type the output biomass varies, can not be reliable predict whether the mentioned danger exists. In addition, that the compositions of the organic and the aqueous phase different depending on the type of storage for the same bio-oil may be because of low-boiling constituents have volatilized.

Der Erfindung liegt somit die Aufgabe zugrunde, ein Verfahren zur Vergasung von Pyrolysekondensaten anzugeben, bei dem der Flugstromvergaser sicher betrieben werden kann. In den weiteren Ansprüchen werden bevorzugte Ausgestaltungen des Verfahrens angegeben.The invention is therefore based on the object, a method for the gasification of pyrolysis condensates, in which the Flugstromvergaser can be safely operated. In the other Claims become preferred embodiments of the method specified.

Der Grundgedanke der Erfindung besteht darin, die Entmischung des Bioöls vorwegzunehmen, um auf diese Weise einen sicheren Betrieb des Flugstromvergasers zu gewährleisten, und zwar soll das Bioöl in eine wässrige und eine organische Phase getrennt werden. Die organische Phase enthält in jedem Fall einen ausreichend hohen Brennwert, um gefährliche Betriebszustände im Flugstromvergaser zu vermeiden; sie wird daher kontinuierlich und ohne Unterbrechung dem Flugstromvergaser zugeführt. Die wässrige Phase wird separat in den Flugstromvergaser eingespeist, wobei es unerheblich ist, ob die Einspeisung kontinuierlich oder diskontinuierlich - etwa in Intervallen - erfolgt. Auf diese Weise kann es nicht zu einer überstöchiometrischen Konzentration des Sauerstoffs im Vergaser kommen. Die Einspeisung kann in zwei verschiedenen Einspeisedüsen, aber auch in einer gemeinsamen Einspeisedüse erfolgen.The basic idea of the invention is demixing of bio-oil in order to obtain a safe To ensure operation of the entrainment gasifier the bio-oil separated into an aqueous and an organic phase become. The organic phase contains sufficient in each case high calorific value to dangerous operating conditions in the To avoid entrainment gasifier; It therefore becomes continuous and fed without interruption the Flugstromvergaser. The aqueous phase is fed separately into the entrained flow gasifier, it is irrelevant whether the feed is continuous or intermittently - at intervals, for example. This way it can not become a superstoichiometric Concentration of oxygen in the carburetor come. The feed can be in two different feed nozzles, but also take place in a common feed nozzle.

Die Trennung des Bioöls in die zwei Phasen wird vorzugsweise in der Weise durchgeführt, dass die organische Phase allenfalls einen geringen Wassergehalt, auf jeden Fall einen Wassergehalt unter 25, besser unter 20 Gew.-% aufweist. Der Wassergehalt der wässrigen Phase beträgt demgegenüber vorzugsweise mindestens 50 Gew.-%. Die beiden Phasen können unter diesen Bedingungen längere Zeit gelagert werden und neigen nicht mehr zu einer erneuten Phasentrennung.The separation of the bio-oil into the two phases is preferred carried out in such a way that the organic phase at best a low water content, definitely a water content below 25, better below 20 wt .-%. The water content In contrast, the aqueous phase is preferably at least 50% by weight. The two phases can be among these Conditions are stored for a long time and are no longer prone to a new phase separation.

Die Trennung des Bioöls in die zwei Phasen erfolgt vorzugsweise durch fraktionierte Kondensation während der Erzeugung des Bioöls in der Schnellpyrolyse. Vorzugsweise wird die Schnellpyrolyse mit Lignocellulose durchgeführt, wobei die Lignocellulose mit Sand oder einem anderen geeigneten Wärmeträger, der eine Temperatur von 500°C bis 600°C aufweist, für die Dauer von 1 bis 10 Sekunden in Kontakt gebracht wird. Das gebildete Bioöl wird der erwähnten fraktionierten Kondensation unterworfen, so dass die beschriebenen beiden Phasen entstehen. Alternativ könnte Bioöl durch längere Lagerung und Dekantieren in zwei Phasen aufgetrennt werden.The separation of the bio-oil into the two phases is preferably carried out by fractional condensation during generation of the Bio oils in the fast pyrolysis. Preferably, the fast pyrolysis carried out with lignocellulose, taking the lignocellulose with sand or another suitable heat carrier, the a temperature of 500 ° C to 600 ° C, for the duration from 1 to 10 seconds. The educated Bio-oil is subjected to the mentioned fractional condensation, so that the described two phases arise. alternative could bio-oil by prolonged storage and decanting in two phases are separated.

Aus Vorversuchen ergibt sich, dass sich das Bioöl unter den erwähnten Randbedingungen in eine organische Rohholzteer-Phase und eine wässrige Rohholzessig-Phase auftrennt. Diese Phasentrennung kann in einer technischen Anlage leicht durch eine fraktionierte Kondensation erreicht werden. Die Untersuchung der Phasen ergab für die organische Phase einen Feststoffgehalt zwischen 26 und 29 Gew.-%, eine Dichte von 1250 bis 1290 kg/m3, eine Viskosität bei Zimmertemperatur von ca. 5 Pas und einen Heizwert von 20,8 bis 21,5 MJ/kg. Die entsprechenden Werte für die wässrige Phase sind: Feststoff 29 Gew.-%, Dichte ca. 1200 kg/m3, Viskosität bei Zimmertemperatur ca. 1 Pas und einen Heizwert von lediglich 9 MJ/kg.Preliminary results show that the bio-oil separates under the mentioned boundary conditions into an organic raw wood tar phase and an aqueous raw wood vinegar phase. This phase separation can be easily achieved in a technical plant by a fractional condensation. Examination of the phases showed for the organic phase a solids content between 26 and 29 wt .-%, a density of 1250 to 1290 kg / m 3 , a viscosity at room temperature of about 5 Pas and a calorific value of 20.8 to 21, 5 MJ / kg. The corresponding values for the aqueous phase are: solids 29% by weight, density about 1200 kg / m 3 , viscosity at room temperature about 1 Pas and a calorific value of only 9 MJ / kg.

Sowohl die organische als auch die wässrige Phase erweisen sich als langzeitstabil, so dass gegen eine längere, getrennte Lagerung keine Sicherheitsbedenken bestehen. Beide Phasen können mit oder ohne Zusatz von 3 Gew.-% Strohasche bei Zimmertemperatur über einen Zeitraum von 15 Monaten beispielsweise in unter Luft verschlossenen Gasflaschen gelagert werden, ohne dass eine nennenswerte Entmischung eintritt. Zusammensetzung, Dichte, Heizwert und Viskosität bleiben über die Lagerzeit hinweg praktisch gleich.Both the organic and the aqueous phase prove as long-term stable, so that against a longer, separate Storage no safety concerns exist. Both phases can with or without the addition of 3% by weight straw ash at room temperature for example, over a period of 15 months be stored in sealed gas cylinders, without that a significant segregation occurs. Composition, Density, calorific value and viscosity remain over the storage period practically the same.

Bei Bedarf kann einer oder beiden Phasen vor der Einspeisung in den Vergaser pulverförmiger Pyrolysekoks und/oder ein Schlackepelzbildner zugemischt werden. Der Pyrolysekoks stabilisiert den Betrieb des Vergasers wegen des zusätzlichen Brennstoffes, während durch den Schlackepelzbildner der Innenraum des Vergasers gegen die korrosiven und aggressiven Bedingungen geschützt wird.If necessary, one or both phases can be before the feed in the gasifier powdered pyrolysis and / or a Slag fur formers are mixed. The pyrolysis coke stabilized the operation of the carburetor because of the additional Fuel while through the slag fur builder the interior carburetor against corrosive and aggressive conditions is protected.

Claims (3)

Verfahren zur Vergasung von Pyrolysekondensaten mit den Schritten: die Pyrolysekondensate werden in eine flüssige organische und eine flüssige wässrige Phase getrennt, die organische und die wässrige Phase werden getrennt oder gemeinsam zusammen mit unterstöchiometrischem Sauerstoff in einen Vergaser eingespeist, wobei jedoch zumindest die organische Phase kontinuierlich und ohne Unterbrechung dem Vergaser zugeführt wird. Process for the gasification of pyrolysis condensates with the steps: the pyrolysis condensates are separated into a liquid organic and a liquid aqueous phase, the organic and aqueous phases are fed separately or together with substoichiometric oxygen into a gasifier, but with at least the organic phase is fed continuously and without interruption to the gasifier. Verfahren nach Anspruch 1, bei dem die Pyrolysekondensate durch eine Schnellpyrolyse von Lignocellulose erzeugt werden, wobei die Lignocellulose für 1 bis 10 Sekunden mit einem Wärmeträger einer Temperatur von 500°C bis 600°C in Kontakt gebracht und das dabei entstehende Pyrolysekondensat durch eine fraktionierte Kondensation in die organische und die wässrige Phase getrennt wird. Process according to claim 1, wherein the pyrolysis condensates are produced by rapid pyrolysis of lignocellulose, wherein the lignocellulose for 1 to 10 seconds with a heat transfer medium temperature of 500 ° C to 600 ° C brought into contact and the resulting pyrolysis condensate is separated by a fractional condensation in the organic and the aqueous phase. Verfahren nach Anspruch 1, bei dem einer der beiden Phasen ein pulverförmiger Pyrolysekoks und/oder ein Schlackepelzbildner zugemischt wird.The method of claim 1, wherein one of the two phases a powdered pyrolysis coke and / or a slag fur builder is mixed.
EP04018777A 2003-10-01 2004-08-07 A method of gasifying liquid pyrolysis products Expired - Lifetime EP1520900B1 (en)

Applications Claiming Priority (2)

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DE10345672A DE10345672B4 (en) 2003-10-01 2003-10-01 Process for the gasification of pyrolysis condensates
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WO2007045291A1 (en) * 2005-10-15 2007-04-26 Forschungszentrum Karlsruhe Gmbh Process for production and preparation of rapid pyrolysis products from biomass for pressurized entrained-flow gasification
ITPR20090048A1 (en) * 2009-06-18 2010-12-19 Renzo Vaiani PROCEDURE AND PLANT FOR THE PRODUCTION OF BIOMASS SYNTHESIS GASES AND / OR WASTE IN GENERAL

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EP2236588B1 (en) 2009-04-02 2012-07-04 General Electric Company Process for use of pyrolysis water
EP2236587A1 (en) 2009-04-02 2010-10-06 General Electric Company Modified bio-slurry and process for its production and gasification

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EP0523815A1 (en) * 1991-07-15 1993-01-20 JOHN BROWN DEUTSCHE ENGINEERING GmbH Process for fabrication of synthesis or fuel gases from pasty or solid refuse or waste materials or from low-grade fuels in gasification reactor
WO2003033624A1 (en) * 2001-10-16 2003-04-24 Forschungszentrum Karlsruhe Gmbh Method for pyrolysis and gasification of biomass

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Publication number Priority date Publication date Assignee Title
WO2007045291A1 (en) * 2005-10-15 2007-04-26 Forschungszentrum Karlsruhe Gmbh Process for production and preparation of rapid pyrolysis products from biomass for pressurized entrained-flow gasification
US8043391B2 (en) 2005-10-15 2011-10-25 Forschungszentrum Karlsruhe Gmbh Method for producing and preparing fast pyrolysis products from biomass for an entrained-flow pressure gasification
CN101365770B (en) * 2005-10-15 2013-03-13 卡尔斯鲁厄研究中心股份有限公司 Process for production and preparation of rapid pyrolysis products from biomass for pressurized entrained-flow gasification
ITPR20090048A1 (en) * 2009-06-18 2010-12-19 Renzo Vaiani PROCEDURE AND PLANT FOR THE PRODUCTION OF BIOMASS SYNTHESIS GASES AND / OR WASTE IN GENERAL

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ATE362503T1 (en) 2007-06-15
DE502004003825D1 (en) 2007-06-28
DE10345672B4 (en) 2005-12-29
EP1520900B1 (en) 2007-05-16
DE10345672A1 (en) 2005-05-19

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