GB499924A - Improvements in the distillation of pitch and like carbonaceous materials - Google Patents
Improvements in the distillation of pitch and like carbonaceous materialsInfo
- Publication number
- GB499924A GB499924A GB8831/38A GB883138A GB499924A GB 499924 A GB499924 A GB 499924A GB 8831/38 A GB8831/38 A GB 8831/38A GB 883138 A GB883138 A GB 883138A GB 499924 A GB499924 A GB 499924A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heated
- steam
- materials
- parts
- atomized
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
- C10C1/04—Working-up tar by distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
<PICT:0499924/III/1> In a process for the recovery of difficulty volatilizable products from pitches, tars, bitumens, coals, resins, waxes &c., of the ; kind in which the initial materials, preferably preheated, are atomized in a current of superheated steam or gas, the atomized materials are mixed with the steam or gas under pressure or vacuum in a locally very limited inlet zone, the length of which does not exceed a few centimetres, so that the materials are heated by the steam &c. only for a fraction of a second, whereupon the mixture is expanded into a non-heated expansion zone maintained at a lower pressure than the inlet zone where the products are cooled to a temperature below that at which decomposition can occur. The reaction temperature may be chosen so that slight decomposition of non - volatile fractions of the initial material takes place, whereby difficultly volatilizable decomposition products are obtained. The initial materials heated in a vessel F are fed through a nozzle D where they are atomized by heated gases passed through a coil A and a vaporizing tube C, the mixture being immediately expanded into a chamber E from which volatile constituents are withdrawn through a line H to condensation apparatus. The distance of the nozzle D from the inlet of the expansion chamber E is about 20 cms. so that with a flow of vapour of 5 metres per second the materials are in contact with the hot gases for 1/25 of a second. In examples: (1) coal-tar pitch was heated to 380 DEG C. and sprayed into a steam-jet heated to 600 DEG C.; 65 per cent viscous oil and 33 per cent pitch of high softening point were obtained; (6) 35 parts coal dispersed in 65 parts tar-oil were heated to 390 DEG C. and sprayed into steam heated to 600 DEG C., and on expansion the temperature of the mixture was reduced to 400 DEG C.; 29 parts residue and 70 parts distillate were obtained. Specification 169,763, [Class 32], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE499924X | 1938-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB499924A true GB499924A (en) | 1939-01-31 |
Family
ID=6545541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8831/38A Expired GB499924A (en) | 1938-01-12 | 1938-03-22 | Improvements in the distillation of pitch and like carbonaceous materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB499924A (en) |
-
1938
- 1938-03-22 GB GB8831/38A patent/GB499924A/en not_active Expired
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