US1875287A - Zudwig weber - Google Patents
Zudwig weber Download PDFInfo
- Publication number
- US1875287A US1875287A US1875287DA US1875287A US 1875287 A US1875287 A US 1875287A US 1875287D A US1875287D A US 1875287DA US 1875287 A US1875287 A US 1875287A
- Authority
- US
- United States
- Prior art keywords
- distillation
- coal
- binders
- zudwig
- weber
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 20
- 239000003245 coal Substances 0.000 description 20
- 238000004821 distillation Methods 0.000 description 18
- 239000011230 binding agent Substances 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 8
- 239000004927 clay Substances 0.000 description 8
- 229910052570 clay Inorganic materials 0.000 description 8
- 239000004484 Briquette Substances 0.000 description 6
- 239000000571 coke Substances 0.000 description 6
- 238000005292 vacuum distillation Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive Effects 0.000 description 4
- 239000002802 bituminous coal Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 210000002356 Skeleton Anatomy 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 235000015450 Tilia cordata Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000003077 lignite Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000011287 low-temperature tar Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- 239000003232 water-soluble binding agent Substances 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
Definitions
- water soluble binders such as sulphitespent liquors, further those known under the name inorganic binders or also emulsion like binding mixtures such as for example binders consisting of an aqueous mixture of sulphite spent liquor or cellulose pitch phite spent liquor) with clay in the finest state of subdivision so that it constitutes an emulsion or colloidal suspension, and when subsequently heated acts so as to form a skeleton, because the clay'dehydrates.
- sulphite spent liquor as adhesive medium dries and under continued heating carbonizes;
- coke yielding organic materials as for example, fine coal dust can be suspended in the sulphite spent liquor.
- adhesive media such as size (i. e. aqueous glue solution), water-glass or the like can be used.
- Such binders have this in common, as already explained, that they require a subsequent heat treatment for drying or roasting of the briquettes. This is where the new invention applies. That is,'inorganic binders having refractory properties of clay in forming a hard briquette upon molding, pressing and heating to 800 to 1000 degrees C., such as lime, cement, magnesia, and similar materials may be employed.
- the briquettes produced from bituminous coal are not only dried or roasted but the heat treatment which has normally been taken at most to a temperature of about 230 C. is raised to a temperature of 450 -500 O; according to what is most suitable for distillation under 4 the particular conditions, using a suitable
Description
Patented Aug. 30,1932
OFFICE;
LUDWIGWEBER, 0F BERLIN-WILMERSDORF, GERMANY rnocnss ron 'rnn rnonncrron or SEMICOKE nnreun'rzrns FROM BIrUMInouscoAL No Drawing. Application filed October 13, 1927, Serial No. 226,049, and in Germany October 14,1926. 7
The low temperature coking or distillation of bituminous fuels is known, and that it is advantageous in certain cases to briquette the fuelbefore distillation is also known. The invention described in the following-is not concerned with the low temperature dis tillation of lignite, peat and the' like, the briquetting of which involves quite different considerations than for example bituminous coal. The invention is only concerned with the latter. I
In the low temperature distillation of ordinary coal it has, as was to be expected, been found that only lumpy material was most suitable for the distillation. Commercially however,the distillation of lumpy material is of noconsequence because the lumps always find amarket at a good price. On this account it is only the. bituminous fine coal which comes under consideration for distillation because there is not a suflicient outlet for this in the condition in which it occurs and consequently the price is low and the necessary economic circumstances exist.
Most of the distillation processeswhich have become known in practicefor ordinary coal, use the fine coal in the condition in which it occurs. As this fine coal lies very compact and coal in itself is a v'erypoor conductor of heat, mass should be often turned over during the heat treatment in order to "get an evenheating of the entire material.
The almost universal use of rotary tube furnaces for the low temperature distillation of ordinary coal comes about in this way. As a necessary consequence of the constant turning of the material a semi-coke principally in dust form'and a more or less considerably dusty tar are obtained. As these two products-semi-coke and primary low temperature tar-must carry the costs of the low temperature coal distillation, there is under these conditions no prospect for the distillation of fine coal in the loose dust form, so as to provide a useful solution to the pressing problem of mining and general industrial circles, namely, economic production of primary low temperature tar.
On this account it has also been proposed a it is desirable that the.
to briquette the bituminous fine coal first of all and then distill.
v I In carrying out the process according to the invention, pitch and similar organic binders are fundamentally avoided and replacedby such "binders which on heating not only do not soften but rather dry, set or otherwise harden. There are many such binders avail:
able. Y
We' will consider first of all the water soluble binders, such as sulphitespent liquors, further those known under the name inorganic binders or also emulsion like binding mixtures such as for example binders consisting of an aqueous mixture of sulphite spent liquor or cellulose pitch phite spent liquor) with clay in the finest state of subdivision so that it constitutes an emulsion or colloidal suspension, and when subsequently heated acts so as to form a skeleton, because the clay'dehydrates. and thus becomes hard and porous, whilst the sulphite spent liquor as adhesive medium dries and under continued heating carbonizes; In cases where it is important to avoid an increase of ash such as the clay would give, coke yielding organic materials as for example, fine coal dust can be suspended in the sulphite spent liquor. Instead ofthe sulphite spent liquor other adhesive media such as size (i. e. aqueous glue solution), water-glass or the like can be used. 7
Such binders have this in common, as already explained, that they require a subsequent heat treatment for drying or roasting of the briquettes. This is where the new invention applies. That is,'inorganic binders having refractory properties of clay in forming a hard briquette upon molding, pressing and heating to 800 to 1000 degrees C., such as lime, cement, magnesia, and similar materials may be employed.
Whilst choosing suitable binders the briquettes produced from bituminous coal are not only dried or roasted but the heat treatment which has normally been taken at most to a temperature of about 230 C. is raised to a temperature of 450 -500 O; according to what is most suitable for distillation under 4 the particular conditions, using a suitable
Publications (1)
Publication Number | Publication Date |
---|---|
US1875287A true US1875287A (en) | 1932-08-30 |
Family
ID=3424083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1875287D Expired - Lifetime US1875287A (en) | Zudwig weber |
Country Status (1)
Country | Link |
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US (1) | US1875287A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3185635A (en) * | 1961-05-10 | 1965-05-25 | Us Smelting Refining And Minin | Method for producing metallurgical coke and metal-coke from both coking and non-coking coals |
US4024022A (en) * | 1974-12-05 | 1977-05-17 | Bergwerksverband Gmbh | Method of inhibiting dust formation when feeding coal into coking chambers |
US4030983A (en) * | 1975-04-04 | 1977-06-21 | Bergwerksverband Gmbh | Method of restricting dust development when feeding coal into coke ovens |
US4055471A (en) * | 1975-01-09 | 1977-10-25 | Bergwerksverband Gmbh | Method of restricting the formation of dust when feeding coal into coke ovens |
US5368616A (en) * | 1993-06-11 | 1994-11-29 | Acurex Environmental Corporation | Method for decreasing air pollution from burning a combustible briquette |
-
0
- US US1875287D patent/US1875287A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3185635A (en) * | 1961-05-10 | 1965-05-25 | Us Smelting Refining And Minin | Method for producing metallurgical coke and metal-coke from both coking and non-coking coals |
US4024022A (en) * | 1974-12-05 | 1977-05-17 | Bergwerksverband Gmbh | Method of inhibiting dust formation when feeding coal into coking chambers |
US4055471A (en) * | 1975-01-09 | 1977-10-25 | Bergwerksverband Gmbh | Method of restricting the formation of dust when feeding coal into coke ovens |
US4030983A (en) * | 1975-04-04 | 1977-06-21 | Bergwerksverband Gmbh | Method of restricting dust development when feeding coal into coke ovens |
US5368616A (en) * | 1993-06-11 | 1994-11-29 | Acurex Environmental Corporation | Method for decreasing air pollution from burning a combustible briquette |
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