GB665164A - Improvements in or relating to methods of treating peat and similar ligno-cellulose materials - Google Patents
Improvements in or relating to methods of treating peat and similar ligno-cellulose materialsInfo
- Publication number
- GB665164A GB665164A GB10238/49A GB1023849A GB665164A GB 665164 A GB665164 A GB 665164A GB 10238/49 A GB10238/49 A GB 10238/49A GB 1023849 A GB1023849 A GB 1023849A GB 665164 A GB665164 A GB 665164A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxidation
- oxygen
- oxides
- gas
- steam
- 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
- 239000000463 material Substances 0.000 title abstract 9
- 238000000034 method Methods 0.000 title abstract 3
- 239000003415 peat Substances 0.000 title abstract 2
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 5
- 230000003647 oxidation Effects 0.000 abstract 4
- 238000007254 oxidation reaction Methods 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 150000004677 hydrates Chemical class 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- 235000013980 iron oxide Nutrition 0.000 abstract 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 abstract 1
- 239000012978 lignocellulosic material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 235000000346 sugar Nutrition 0.000 abstract 1
- 150000008163 sugars Chemical class 0.000 abstract 1
- 229910001935 vanadium oxide Inorganic materials 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10F—DRYING OR WORKING-UP OF PEAT
- C10F5/00—Drying or de-watering peat
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
Crude saw mill waste and similar lignocellulosic materials containing water are broken down from the colloidal condition to facilitate de-watering, by simultaneously heating the material under pressure and admitting oxygen or oxygen-containing gas thereto, the heat being wholly or partly supplied by the exothermic oxidation of the material. Basic reacting substances such as carbonates, hydrates and oxides of the alkaline metals and/or the alkaline earth metals, or catalysts such as iron oxides or vanadium oxides may be added to assist the oxidation, and the mass should be agitated either mechanically or by the admission of steam and/or the gas. The process may be effected continuously or intermittently, and the entering material may be pre-heated by heat-exchange with the treated material or with vapours therefrom. The oxidation may be effected in an acidified phase by adding organic and/or inorganic acids to the material, the resulting hydrolysis of the cellulosic matter forming fermentable sugars. Pressures of from 10 to 200 atmospheres, and temperatures of from 150 DEG to 300 DEG C, and gases containing from 90 to 95 per cent of oxygen are referred to as suitable for the process, although it is stated that oxidation may occur at a temperature as low as 50 DEG C, and that air may be used as the oxidizing gas provided that the pressure of the steam and non-condensable gas supplied to the material is correspondingly increased. The oxidized material may be mixed with crude peat (10 to 15 per cent by weight calculated on a dry basis is mentioned), the de-watering property of the material not being affected by the addition. Specification 3998/15, [Class 50], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE665164X | 1948-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB665164A true GB665164A (en) | 1952-01-16 |
Family
ID=20314444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10238/49A Expired GB665164A (en) | 1948-04-14 | 1949-04-14 | Improvements in or relating to methods of treating peat and similar ligno-cellulose materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB665164A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1047360B (en) * | 1954-10-11 | 1958-12-24 | Stora Kopparbergs Bergslags Ab | Process for the continuous incineration of peat containing water |
| US3990180A (en) * | 1974-09-13 | 1976-11-09 | Bunting William M | Peat containers for the planting of containerized seedlings |
| US4477257A (en) * | 1982-12-13 | 1984-10-16 | K-Fuel/Koppelman Patent Licensing Trust | Apparatus and process for thermal treatment of organic carbonaceous materials |
-
1949
- 1949-04-14 GB GB10238/49A patent/GB665164A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1047360B (en) * | 1954-10-11 | 1958-12-24 | Stora Kopparbergs Bergslags Ab | Process for the continuous incineration of peat containing water |
| US3990180A (en) * | 1974-09-13 | 1976-11-09 | Bunting William M | Peat containers for the planting of containerized seedlings |
| US4477257A (en) * | 1982-12-13 | 1984-10-16 | K-Fuel/Koppelman Patent Licensing Trust | Apparatus and process for thermal treatment of organic carbonaceous materials |
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