DE19653238A1 - High-grade granular activated charcoal production without sulphur di:oxide emission - Google Patents
High-grade granular activated charcoal production without sulphur di:oxide emissionInfo
- Publication number
- DE19653238A1 DE19653238A1 DE19653238A DE19653238A DE19653238A1 DE 19653238 A1 DE19653238 A1 DE 19653238A1 DE 19653238 A DE19653238 A DE 19653238A DE 19653238 A DE19653238 A DE 19653238A DE 19653238 A1 DE19653238 A1 DE 19653238A1
- Authority
- DE
- Germany
- Prior art keywords
- activated charcoal
- sulphur
- granular activated
- oxide emission
- charcoal production
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Die Patentanmeldung 196 50 414.7 beschreibt Wege, um aus diversen Ionen austauschern, Vorstufen von diesen sowie Rückständen eine kugelförmige Aktivkohle herzustellen. Dabei ist es wichtig, vor dem eigentlichen Schwelen die Kügelchen unschmelzbar zu machen, um ein Zusammenbacken zu ver meiden. Das bedingt eine schon bei niedriger Temperatur einsetzende Vernet zung, die normalerweise über Radikale stattfindet. Es haben sich u. a. Sauer stoff und Isocyanate bewährt.The patent application 196 50 414.7 describes ways to get out of diverse ions exchangers, precursors of these and residues a spherical Manufacture activated carbon. It is important to do this before smoldering to make the beads infusible to prevent caking avoid. This requires Vernet to start at a low temperature tongue, which usually takes place via radicals. U. a. Sour Proven substance and isocyanates.
Es wurde jetzt gefunden, daß sich Diphenylmethan-Polyisocyanate besonders gut als Vernetzer bzw. auch als wesentlicher Bestandteil des zu schwelenden Materials eignen.It has now been found that diphenylmethane polyisocyanates in particular good as a crosslinker or as an essential part of the process to be smoldered Material.
Es wurde weiter gefunden, daß die so erhaltene Aktivkohle eine gegenüber normaler Aktivkohle erhöhte Affinität für saure Gase hat, was dem in Aromat systemen eingebauten Stickstoff zuzuschreiben ist.It was further found that the activated carbon thus obtained was compared to one normal activated carbon has increased affinity for acid gases, which is the same as in aromatics systems is due to built-in nitrogen.
Beim Schwelen, welches im Drehrohr oder in Wirbelschicht bzw. speziellen Öfen, wie Röhrenofen ("Tubular furnace", Etagenofen, Schneckengangofen usw.) durchgeführt wird, ist darauf zu achten, daß besonders unterhalb 250°C der Vernetzung (unschmelzbar machen) genügend Zeit geboten wird. Hier ist auch die Zugabe von etwas Luft der Vernetzung förderlich. Die Abspaltung von flüchtigen Bestandteilen ist ab 450°C weitgehend beendet. Ab 600°C ist es vorteilhaft, etwas Wasserdampf zuzugeben, um einer vorzeitigen Graphiti sierung entgegenzuwirken. Die Aktivierung wird in einer dem Fachmann be kannten Weise bei Temperaturen von 700-900°C durchgeführt, wobei Was serdampf, Luft oder CO2 eingeblasen wird.When smoldering, which is carried out in a rotary tube or in a fluidized bed or special furnaces such as tubular furnaces (multi-stage furnaces, multi-deck furnaces, screw-type furnaces, etc.), care must be taken to ensure that there is sufficient time, especially below 250 ° C, for the crosslinking (to make it infusible) is offered. The addition of some air is also conducive to networking here. The elimination of volatile constituents has largely ended at 450 ° C. From 600 ° C, it is advantageous to add some water vapor to counteract premature graphitization. The activation is carried out in a manner known to the person skilled in the art at temperatures of 700-900 ° C., water vapor, air or CO 2 being blown in.
25 Teile Polystyrol-Abfälle wurden in 25 Teilen Steinkohlenteerpech aufge schmolzen und mit 50 Teilen Diphenylmethan-Poly-(meist tri-)isocyanat ver setzt. Die Masse wurde warm extrudiert und mittels eines Marumerizers zu Kügelchen mit Durchmesser 0,3-2,0 mm geformt. Die Schwelung geschah in einem 20 l Drehrohr der Fa. Plecq. Es wurde in 60 min. auf 150°C unter N2 unter Zugabe von ca. 10% Luft angeheizt und bei dieser Temperatur 60 min. verweilt. Danach wurde mit 3°C/min. auf 450°C und mit 5°C/min. auf 700°C aufgeheizt. Ab 600°C wurden ca. 5% Wasserdampf zugegeben. Der Pyroly se-Rückstand betrug 56%, das Schüttgewicht ca. 910 g/l. Die Aktivierung wur de im gleichen Drehrohr bei 850°C mit 25% Wasserdampf in N2während 120 min. durchgeführt. Es wurde in einer Ausbeute von 41% eine hochwertige, abriebfeste Kugelkohle mit einer inneren Oberfläche von 1.250 m2/g erhalten. Je nach Bedarf kann die innere Oberfläche von 600-1.500 m2/g variieren.25 parts of polystyrene waste were melted in 25 parts of coal tar pitch and mixed with 50 parts of diphenylmethane poly (mostly tri) isocyanate. The mass was extruded warm and formed into beads with a diameter of 0.3-2.0 mm using a Marumerizer. The smoldering took place in a 20 l rotary tube from Plecq. It was in 60 min. heated to 150 ° C under N 2 with the addition of about 10% air and at this temperature for 60 min. lingers. Then at 3 ° C / min. to 450 ° C and at 5 ° C / min. heated to 700 ° C. From 600 ° C about 5% water vapor was added. The pyrolysis residue was 56%, the bulk density was about 910 g / l. The activation was carried out in the same rotary tube at 850 ° C with 25% water vapor in N 2 for 120 min. carried out. A high-quality, abrasion-resistant spherical carbon with an inner surface area of 1,250 m 2 / g was obtained in a yield of 41%. Depending on requirements, the inner surface can vary from 600-1,500 m 2 / g.
Claims (5)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19653238A DE19653238A1 (en) | 1996-12-05 | 1996-12-20 | High-grade granular activated charcoal production without sulphur di:oxide emission |
US09/242,727 US6300276B1 (en) | 1996-08-20 | 1997-08-14 | Granular activated carbon from distillation residues |
AU46170/97A AU4617097A (en) | 1996-08-20 | 1997-08-14 | Granulated activated carbon from distillation residues |
ES97944759T ES2201327T3 (en) | 1996-08-20 | 1997-08-14 | GRANULATED ACTIVE CARBON FROM DISTILLATION RESIDUES. |
EP97944759A EP0952960B1 (en) | 1996-08-20 | 1997-08-14 | Granulated activated carbon from distillation residues |
DE59710240T DE59710240D1 (en) | 1996-08-20 | 1997-08-14 | GRANULAR ACTIVE CARBON FROM DISTILLATION RESIDUES |
PCT/EP1997/004459 WO1998007655A1 (en) | 1996-08-20 | 1997-08-14 | Granulated activated carbon from distillation residues |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19650414A DE19650414A1 (en) | 1996-08-20 | 1996-12-05 | High grade spherical adsorbents production from ion exchanger or precursor |
DE19653238A DE19653238A1 (en) | 1996-12-05 | 1996-12-20 | High-grade granular activated charcoal production without sulphur di:oxide emission |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19653238A1 true DE19653238A1 (en) | 1998-06-25 |
Family
ID=26031891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19653238A Withdrawn DE19653238A1 (en) | 1996-08-20 | 1996-12-20 | High-grade granular activated charcoal production without sulphur di:oxide emission |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19653238A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005038555A1 (en) * | 2005-08-12 | 2007-02-15 | Cernius Holding Gmbh | Process for the preparation of spherical activated carbon |
DE202016100320U1 (en) | 2015-12-10 | 2016-12-28 | BLüCHER GMBH | Activated carbon, in particular particulate activated carbon, in particular with defined porosity properties |
DE202021100461U1 (en) | 2020-09-25 | 2022-01-07 | Blücher Gesellschaft mit beschränkter Haftung | supported catalysts |
DE202020107404U1 (en) | 2020-11-27 | 2022-03-01 | Blücher Gesellschaft mit beschränkter Haftung | Blasting media based on granular activated carbon |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416198A1 (en) * | 1978-02-06 | 1979-08-31 | Kureha Chemical Ind Co Ltd | SPHERICAL ACTIVE CARBON WITH HIGH PHYSICAL RESISTANCE AND LOW-DUST RELEASING AND ITS MANUFACTURING PROCESS |
DE4304026A1 (en) * | 1992-02-28 | 1993-09-02 | Hasso Von Bluecher | Exhausted granular organic ion exchange resins disposal for useful active carbon - by converting to carbon@ pellets by carbonising in mainly inert atmos. and activating in oxidising atmos. for cation exchange styrene] acrylic] acid resin |
DE4328219A1 (en) * | 1993-08-21 | 1995-02-23 | Hasso Von Bluecher | Spheres of activated carbon from ion exchangers |
DE19600237A1 (en) * | 1995-01-11 | 1996-07-18 | Bluecher Hasso Von | Prodn. of granulated active carbon |
-
1996
- 1996-12-20 DE DE19653238A patent/DE19653238A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416198A1 (en) * | 1978-02-06 | 1979-08-31 | Kureha Chemical Ind Co Ltd | SPHERICAL ACTIVE CARBON WITH HIGH PHYSICAL RESISTANCE AND LOW-DUST RELEASING AND ITS MANUFACTURING PROCESS |
DE4304026A1 (en) * | 1992-02-28 | 1993-09-02 | Hasso Von Bluecher | Exhausted granular organic ion exchange resins disposal for useful active carbon - by converting to carbon@ pellets by carbonising in mainly inert atmos. and activating in oxidising atmos. for cation exchange styrene] acrylic] acid resin |
DE4328219A1 (en) * | 1993-08-21 | 1995-02-23 | Hasso Von Bluecher | Spheres of activated carbon from ion exchangers |
DE19600237A1 (en) * | 1995-01-11 | 1996-07-18 | Bluecher Hasso Von | Prodn. of granulated active carbon |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005038555A1 (en) * | 2005-08-12 | 2007-02-15 | Cernius Holding Gmbh | Process for the preparation of spherical activated carbon |
US8021463B2 (en) | 2005-08-12 | 2011-09-20 | Blucher Gmbh | Method for producing spherical activated carbon |
US8147589B2 (en) | 2005-08-12 | 2012-04-03 | Blucher Gmbh | Method for producing spherical activated carbon |
DE202016100320U1 (en) | 2015-12-10 | 2016-12-28 | BLüCHER GMBH | Activated carbon, in particular particulate activated carbon, in particular with defined porosity properties |
DE102016101215A1 (en) | 2015-12-10 | 2017-06-14 | BLüCHER GMBH | Process for the production of activated carbon and activated carbon produced in this way and their use |
DE202021100461U1 (en) | 2020-09-25 | 2022-01-07 | Blücher Gesellschaft mit beschränkter Haftung | supported catalysts |
DE102021102078A1 (en) | 2020-09-25 | 2022-03-31 | Blücher Gesellschaft mit beschränkter Haftung | Process for preparing supported catalysts |
WO2022063447A1 (en) | 2020-09-25 | 2022-03-31 | BLüCHER GMBH | Method for producing supported metal catalysts with a granular activated carbon used as a catalyst support |
DE202020107404U1 (en) | 2020-11-27 | 2022-03-01 | Blücher Gesellschaft mit beschränkter Haftung | Blasting media based on granular activated carbon |
DE102020134238A1 (en) | 2020-11-27 | 2022-06-02 | Blücher Gesellschaft mit beschränkter Haftung | Blasting media based on granular activated carbon |
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Legal Events
Date | Code | Title | Description |
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AF | Is addition to no. |
Ref country code: DE Ref document number: 19650414 Format of ref document f/p: P |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: MHB FILTRATION GMBH + CO. KG, 40699 ERKRATH, DE |
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8141 | Disposal/no request for examination |