GB1017527A - Process for treatment of carbonaceous solids - Google Patents
Process for treatment of carbonaceous solidsInfo
- Publication number
- GB1017527A GB1017527A GB2858164A GB2858164A GB1017527A GB 1017527 A GB1017527 A GB 1017527A GB 2858164 A GB2858164 A GB 2858164A GB 2858164 A GB2858164 A GB 2858164A GB 1017527 A GB1017527 A GB 1017527A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solids
- steam
- ash
- carbon content
- passed
- 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
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Carbonaceous solids including coal, coke, peat, tar, sands and oil shale which disintegrate when reduced to ash are distilled, carbonized and gasified in a fluidized bed process which comprises distilling the solids in a first bed fluidized, e.g. by steam and recovering the product gases, gasifying the partially combusted solids in an air fluidized primary gasification zone to a carbon content not below <FORM:1017527/C4-C5/1> 5%, recirculating part of the partially gasified solids to the distillation zone as source of heat therefor, and further gasifying the remaining solids in a secondary gasification zone fludized with steam and oxygen to yield water gas and ash with carbon content below 1%. The temperatures of the distillation and primary and secondary gasification zones are 500-600 DEG C., 800-900 DEG C., 900-1000 DEG C. respectively. In the Figure oil shale is treated successively in 10 the initial reactor, 20 the primary gasifier, 30 the secondary gasifier and optionally 40, 50 heat recovery units; raw shale, preferably preheated by flue gas, recycled solids from 20 at 800-900 DEG C., and steam are introduced into 10 and carbonization at 500-600 DEG C. is effected; steam and gaseous products are withdrawn at 12 overhead and reacted solids removed at 14 are suspended in air and passed into 20, optionally with added air from 24; in 20 partial gasification at 800-900 DEG C. to a carbon content of at least 5% is effected, the withdrawn flue gas being used to generate steam to preheat fresh oil shale, and part of the solids being recycled to 10 as indicated; remaining solids from 20 are passed to 30 further gasified with a mixture of oxygen and steam at 900-1000 DEG C. to give water gas at 36, suitable for use in ammonia and methanol synthesis, and ash of carbon content less than 1%. The hot shale ash from 30 may be passed into heat recovery system 40, 50 in which low temperature steam is superheated and water is vaporized; cooled ash is discharged through 58.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29420563A | 1963-07-10 | 1963-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1017527A true GB1017527A (en) | 1966-01-19 |
Family
ID=23132340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2858164A Expired GB1017527A (en) | 1963-07-10 | 1964-07-10 | Process for treatment of carbonaceous solids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1017527A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2493331A1 (en) * | 1980-11-05 | 1982-05-07 | Exxon Research Engineering Co | FLUIDIZED BED COKING METHOD AND GASIFICATION |
-
1964
- 1964-07-10 GB GB2858164A patent/GB1017527A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2493331A1 (en) * | 1980-11-05 | 1982-05-07 | Exxon Research Engineering Co | FLUIDIZED BED COKING METHOD AND GASIFICATION |
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