US1450888A - Coking of coal - Google Patents
Coking of coal Download PDFInfo
- Publication number
- US1450888A US1450888A US581488A US58148822A US1450888A US 1450888 A US1450888 A US 1450888A US 581488 A US581488 A US 581488A US 58148822 A US58148822 A US 58148822A US 1450888 A US1450888 A US 1450888A
- Authority
- US
- United States
- Prior art keywords
- coal
- temperature
- coking
- substances
- preheating
- 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
- 239000003245 coal Substances 0.000 title description 20
- 238000004939 coking Methods 0.000 title description 6
- 239000000126 substance Substances 0.000 description 8
- 239000000571 coke Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000746181 Therates Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
Definitions
- Vales have invented new and useful Tmprovements in the Coking of Goal, of which the following is a specification.
- the objects of my former and present inventions are to obtain a dense coke produced under uniform conditions, the production of coke from coals from which under present conditions it is not possible to obtain such coke and to improve the yield and quality of the byproducts.
- coal is submitted to a preheating temperature between 500 and 600 C. out of contact with air so as to destroy the non-coke producing substances in the coal but to leave in the product resinic substances of a weight not l ss th n 5% of the weight of the product.
- the process above described may be conducted in a vacuum produced by a gas pump or the like.
- a vacuum is particularly advantageous when the higher temperatures are employed, the hydrocarbons being more readily disengaged from the charge and the time of contact with the hot walls and fittings being shortened, and therefore the decomposition of the hydrocarbons first given off is lessened.
- the degree of vacuum would depend upon circumstances, but at temperatures of 500 C. a vacuum of at least 20 inches of mercury WOllld be used and at temperatures of above 600 C. endeavours would be made to attain 28 inches.
- the improvement which comprises heating the coal in a partial vacuum to a temperature between 500 and 600 C., the temperature being so selected for the particular coal as to leave in the coal not-substantially less than 5% of substances soluble in boiling pyridine and in. chloroform, While destroying theb'ulk of the substances in the coal which are soluble in caustic alkalies, whereby a coal having good coking properties is produced.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Description
1!? STS PATENT FFH@E.
STEWART ROY ILLINGWORTH, 01E RADYR, GLAIMEORGAN, WALES, ASSIGNOR TO ILLING- WORTH CARBONIZATION COMPANY, LIMITED, OF MANCHESTER, ENGLAND.
CURING or COAL.
No Drawing.
To all whom it may concern:
Be it known that I, STEWART Ror ILLING= WORTH, a subject of the King of Great Britain, residing at Brynfedwen, Station 5 Road, Radyr, in the county of Glamorgan,
Vales, have invented new and useful Tmprovements in the Coking of Goal, of which the following is a specification.
This invention relates to improvements in and modifications of the invention described in my former Patent No. 1,422,269, July 11,
1922, relating to the coking of coal.
The objects of my former and present inventions are to obtain a dense coke produced under uniform conditions, the production of coke from coals from which under present conditions it is not possible to obtain such coke and to improve the yield and quality of the byproducts.
In my former specification these results were obtained by preheating the coal to a temperature below 500 C. that is to a temperature at which all resinic substances in the coal are decomposed. The process however may be carried out at temperatures above 500 C. but. below 600 C. at which temperature decomposition of the products it vis-desired to eliminate from the coal takes place more rapidly and the yield of byproducts will be smallerand moreover benzenoid hydrocarbons are produced. The higher the temperature employed the greater the decomposition of the hydrocarbons first evolved, the amount of decomposition depending on the time the hydrocarbons are in contact with the hot walls and fittings.
It is known that a certain'minimum temperature 'for the preheating must be employed for each'type of coal and this mini- 40 mum temperature is higher the greater be the carbon hydrogen ratio of the coal. The desired degree of preheating of the coal can be achieved by the employment of any temperature above the minimum up to 600 C.
and since therate of decomposition of the substances that it is desired to eliminate increases with rise of temperature, the period of preheating is thereby shortened.
Application filed August 12, 1922. Serial No. 581,488.
According to this invention coal is submitted to a preheating temperature between 500 and 600 C. out of contact with air so as to destroy the non-coke producing substances in the coal but to leave in the product resinic substances of a weight not l ss th n 5% of the weight of the product.
The process above described may be conducted in a vacuum produced by a gas pump or the like. The use of a vacuum is particularly advantageous when the higher temperatures are employed, the hydrocarbons being more readily disengaged from the charge and the time of contact with the hot walls and fittings being shortened, and therefore the decomposition of the hydrocarbons first given off is lessened. The degree of vacuum would depend upon circumstances, but at temperatures of 500 C. a vacuum of at least 20 inches of mercury WOllld be used and at temperatures of above 600 C. endeavours would be made to attain 28 inches.
What I claim is 1. In the art of coking coal, the improvement which comprises submitting the coal in a partial vacuum to a temperature between 500 and 600 C., and for a time sutficient to destroy a substantial portion of the non-coke producing substances in the coal but to leave 5% by weight of the resinic substances in the product.
2. In the art of coking coal, the improvement which comprises heating the coal in a partial vacuum to a temperature between 500 and 600 C., the temperature being so selected for the particular coal as to leave in the coal not-substantially less than 5% of substances soluble in boiling pyridine and in. chloroform, While destroying theb'ulk of the substances in the coal which are soluble in caustic alkalies, whereby a coal having good coking properties is produced.
In testimony that I claim the foregoing as my invention I have signed my name this 28 day of July 1922.
STEWART ROY TLLINGWORTH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US581488A US1450888A (en) | 1922-08-12 | 1922-08-12 | Coking of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US581488A US1450888A (en) | 1922-08-12 | 1922-08-12 | Coking of coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1450888A true US1450888A (en) | 1923-04-03 |
Family
ID=24325403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US581488A Expired - Lifetime US1450888A (en) | 1922-08-12 | 1922-08-12 | Coking of coal |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1450888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2645199A1 (en) * | 1975-10-10 | 1977-04-14 | Cryo Maid | PROCESS AND EQUIPMENT FOR THE EXTRACTION OF OIL AND OTHER HYDROCARBONS FROM HYDROCARBON SOLIDS, SUCH AS E. OIL SLATE |
| US4077868A (en) * | 1975-02-10 | 1978-03-07 | Deco Industries, Inc. | Method for obtaining hydrocarbon products from coal and other carbonaceous materials |
-
1922
- 1922-08-12 US US581488A patent/US1450888A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4077868A (en) * | 1975-02-10 | 1978-03-07 | Deco Industries, Inc. | Method for obtaining hydrocarbon products from coal and other carbonaceous materials |
| DE2645199A1 (en) * | 1975-10-10 | 1977-04-14 | Cryo Maid | PROCESS AND EQUIPMENT FOR THE EXTRACTION OF OIL AND OTHER HYDROCARBONS FROM HYDROCARBON SOLIDS, SUCH AS E. OIL SLATE |
| US4052293A (en) * | 1975-10-10 | 1977-10-04 | Cryo-Maid Inc. | Method and apparatus for extracting oil from hydrocarbonaceous solid material |
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