CN103468288B - Comprehensive utilization method of coal-based oil residue - Google Patents
Comprehensive utilization method of coal-based oil residue Download PDFInfo
- Publication number
- CN103468288B CN103468288B CN201310425990.9A CN201310425990A CN103468288B CN 103468288 B CN103468288 B CN 103468288B CN 201310425990 A CN201310425990 A CN 201310425990A CN 103468288 B CN103468288 B CN 103468288B
- Authority
- CN
- China
- Prior art keywords
- coal
- fat
- separator
- gas
- comprehensive utilization
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a comprehensive utilization method of a coal-based oil residue. According to the method, a heated solid heat carrier is mixed with the coal-based oil residue by using a solid heat carrier method; the oil residue is heated and gasified and partially pyrolyzed by using sensible heat of high-temperature solids; heavy liquefied oil in the coal-based oil residue is recovered after being pyrolyzed and gasified; the residual un-gasified residue enters a hot blast heater of a circulating fluidized bed to fully burn; one part of heat generated by combustion is used for heating the solid heat carrier; the other part of heat is recovered through a waste heat boiler. The comprehensive utilization method is small in investment, easy to implement, and high in overall efficiency.
Description
Technical field
The present invention relates to the technical field of utilizing of the coal-based dregs of fat, relate in particular to a kind of method of comprehensive utilization of the coal-based dregs of fat.
Background technology
The processing of the coal liquefaction dregs of fat and the tar dregs of fat is worldwide technological puzzle.The up to ten thousand tons of by-product dregs of fat of the annual generation of direct liquefaction project of China Shenhua Coal to Liquid and Chemical Co., Ltd. Ordos Coal to Liquid Branch, can only pass through the method processing of Boiler Mixed Burning at present.Coal-based dregs of fat main component is the compositions such as heavy liquefaction oil, bitumen and unconverted coal, wherein, the content of heavy liquefaction oil and pitch accounts for 50% of the dregs of fat, the coal-based dregs of fat of Boiler Mixed Burning are burnt the expensive useful components such as a large amount of heavy liquefaction oils and pitch class, are a kind of forced methods.
Coal-based dregs of fat comprehensive utilization technique exploitation is current popular research topic, the mode of filtering by extraction after dregs of fat dissolving is reclaimed tar by the extraction agents that adopt more at present, this technique comprises the processes such as extraction, filtration or centrifugation, filtration cakes torrefaction, extraction liquid separation, technique is comparatively loaded down with trivial details, the common failure rate of filter plant is high, and filter not exclusively, filter cake after filtration also contains a large amount of tar and extraction agent, cause unnecessary waste if do not reclaimed, but removal process is comparatively complicated, facility investment is large.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of comprehensive utilization of the coal-based dregs of fat of investing little, easy to implement, high efficiency.
For addressing the above problem, the method for comprehensive utilization of a kind of coal-based dregs of fat of the present invention, is characterized in that:
The coal-based dregs of fat are sent in making beating tank and broken into pasty state, then by the charging system of making beating pot bottom, the coal-based pasty state dregs of fat are sent in revolution pyrolysis oven and converged with the hot solids thermal barrier of a cyclonic separator, under the effect of rotating at revolution pyrolysis oven, hot solids thermal barrier mixes with coal-based dregs of fat limit, the motion of limit pyrolysis, limit, and the solid after pyrolysis and gas are discharged to enter from revolution pyrolysis oven discharge end and separator, carried out gas solid separation:
Gas part is pyrolysis gas, pyrolysis gas from separator top enter cooling tower carry out cooling, condense: the light constituent that can not coolingly condense and coal gas be cooled top of tower gas fan extract out send into coal gas gathering system; Cooled tar is sent into tar cooler through the recycle pump of cooling tower bottom and is carried out coolingly, and the cooled tar overwhelming majority is returned to cooling tower and vented one's spleen as circulating cooling medium cooling heat, and all the other tar are discharged;
Solid part is solid thermal carriers and semicoke residue, solid thermal carriers and semicoke residue enter circulating fluid bed hot-air furnace from separator bottom discharge mouth is discharged, semicoke residue burns and emits heat as ignition dope using the air after air preheater heating in circulating fluid bed hot-air furnace, heat solid thermal barrier, solid thermal carriers after ash content after burning and heating enter No. one time cyclonic separator through circulating fluid bed hot-air furnace top, solid thermal carriers enter revolution pyrolysis oven and recycle from a cyclonic separator feed opening after being collected by a cyclonic separator, ash content and flue gas are discharged from a cyclonic separator venting port, after entering successively waste heat boiler, air preheater cooling, enter second separator dedusting, the ash content that second separator dedusting is collected is discharged through blocking valve III, flue gas after dedusting is discharged from second separator, wherein a part drains into chimney by discharge blower fan, and rest part is sent in circulating fluid bed hot-air furnace and recycled through recirculation blower.
Described charging system is impeller pump, ram pump, volume pump, spiral pump and resistance to any one in pump of speeding.
Described revolution pyrolysis oven is lined revolving drum stoving oven.
Described cooling tower is any one in packing tower, tray column and spray column.
Described tar cooler is shell and tube heat exchanger, spiral-plate exchanger or plate-type heat exchanger.
Described second separator is sack cleaner or electric precipitator.
Described solid thermal carriers are any one in sand, coal gangue and resinous shale.
The present invention compared with prior art has the following advantages:
1, the present invention adopts the coal-based dregs of fat of solid thermal carriers heat, and the tar quality better that pyrolysis produces simultaneously can by-product gas.
2, the present invention using sand, coal gangue or resinous shale as solid thermal carriers and the coal-based dregs of fat carry out mixed pyrolysis in revolution in pyrolysis oven, residence time of material is short, pyrolysis efficiency is high.
3, pyrolysis solid product semicoke residue of the present invention is directly sent in circulating fluid bed hot-air furnace as fuel and is used, and solid thermal carriers can recycle, and has avoided the separating step of semicoke residue and solid thermal carriers.
4, the present invention invests little, easy to implement and overall efficiency is high, the solid residue perfect combustions such as semicoke residue, and in meeting coal-based dregs of fat comprehensive utilization, can byproduct steam.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is process flow sheet of the present invention.
In figure: the 1-tank of pulling an oar, 2-charging system, cyclonic separator of 3-, 4-turns round pyrolysis oven, 5-separator, 6-cooling tower, 7-recycle pump, 8-tar cooler, 9-gas fan, 10-circulating fluid bed hot-air furnace, 11-blocking valve III, 12-solid thermal carriers storehouse, 13-blocking valve I, 14-coal bunker, 15-blocking valve II, 16-recirculation blower, 17-waste heat boiler, 18-air preheater, 19-discharges blower fan, 20-second separator.
Embodiment
As shown in Figure 1, a kind of method of comprehensive utilization of the coal-based dregs of fat:
The coal-based dregs of fat are sent in making beating tank 1 and broken into pasty state, then by the charging system 2 of making beating tank 1 bottom, the coal-based pasty state dregs of fat are sent in revolution pyrolysis oven 4; The revolution opening for feed of pyrolysis oven 4 and cyclonic separator 3 feed openings of circulating fluid bed hot-air furnace 10 are connected, hot solids thermal barrier by a cyclonic separator 3 converges at revolution pyrolysis oven 4 feed ends and the coal-based dregs of fat, under the effect of rotating at revolution pyrolysis oven 4, hot solids thermal barrier mixes with coal-based dregs of fat limit, the motion of limit pyrolysis, limit, and the solid after pyrolysis and gas are discharged to enter from revolution pyrolysis oven 4 discharge ends and separator 5, carried out gas solid separation:
Gas part is pyrolysis gas, pyrolysis gas enter from separator 5 tops cooling tower 6 carry out cooling, condense: the light constituent that can not coolingly condense and coal gas are cooled the gas fan 9 at tower 6 tops is extracted out and send into coal gas gathering system; Cooled tar is sent into tar cooler 8 through the recycle pump 7 of cooling tower 6 bottoms and is carried out cooling, the cooled tar overwhelming majority is returned to cooling tower 6 and is vented one's spleen as circulating cooling medium cooling heat, all the other tar are discharged, discharge tar content and be recovery tar content, by base level control being realized to the quantitative discharge of tar content;
Solid part is solid thermal carriers and semicoke residue, solid thermal carriers and semicoke residue enter circulating fluid bed hot-air furnace 10 from separator 5 bottom discharge mouths are discharged, semicoke residue is emitted heat as ignition dope in the interior burning of circulating fluid bed hot-air furnace 10 using the air after air preheater 18 heating, heat solid thermal barrier, ash content after burning with heating after solid thermal carriers together with from circulating fluid bed hot-air furnace 10 tops discharge, enter cyclonic separator 3 No. one time, solid thermal carriers enter revolution pyrolysis oven 4 and recycle from cyclonic separator 3 feed openings after being collected by a cyclonic separator 3, ash content and flue gas are discharged from cyclonic separator 3 venting ports, after entering successively waste heat boiler 17, air preheater 18 coolings, enter second separator 20 dedustings, the ash content that second separator dedusting is collected is discharged through blocking valve III 11, uses as the building materials raw material of Building Materials Factory, flue gas after dedusting is discharged from second separator 20, and wherein a part drains into chimney by discharge blower fan 19, and rest part is sent in circulating fluid bed hot-air furnace 10 and recycled through recirculation blower 16.
Fire coal in coal bunker 14 is sent in circulating fluid bed hot-air furnace 10 by blocking valve II 15.
Solid thermal carriers in solid thermal carriers storehouse 12 enter circulating fluid bed hot-air furnace 10 by blocking valve I 13, solid thermal carriers meeting drawing small when normal operation, can enter the rear loss part of second separator 20 with hot flue gas, so need supplement solid thermal carriers while normally operation.
Charging system 2 is impeller pump, ram pump, volume pump, spiral pump and resistance to any one in pump of speeding.
Revolution pyrolysis oven 4 is lined revolving drum stoving oven.
Cooling tower 6 is any one in packing tower, tray column and spray column.
Tar cooler 8 is shell and tube heat exchanger, spiral-plate exchanger or plate-type heat exchanger.
Second separator 20 is sack cleaner or electric precipitator.
Solid thermal carriers are any one in sand, coal gangue and resinous shale.
Claims (7)
1. a method of comprehensive utilization for the coal-based dregs of fat, is characterized in that:
The coal-based dregs of fat are sent in making beating tank (1) and broken into pasty state, then by the charging system (2) of making beating tank (1) bottom, the coal-based pasty state dregs of fat being sent into the hot solids thermal barrier coming with a cyclonic separator (3) in revolution pyrolysis oven (4) converges, under the effect of rotating at revolution pyrolysis oven (4), hot solids thermal barrier mixes with coal-based dregs of fat limit, limit pyrolysis, limit motion, the solid after pyrolysis and gas are discharged to enter from revolution pyrolysis oven (4) discharge end and separator (5), are carried out gas solid separation:
Gas part is pyrolysis gas, pyrolysis gas from separator (5) top enter cooling tower (6) carry out cooling, condense: the light constituent that can not coolingly condense and coal gas be cooled tower (6) top gas fan (9) extract out send into coal gas gathering system; Cooled tar is sent into tar cooler (8) through the recycle pump (7) of cooling tower (6) bottom and is carried out coolingly, and the cooled tar overwhelming majority is returned to cooling tower (6) and vented one's spleen as circulating cooling medium cooling heat, and all the other tar are discharged;
Solid part is solid thermal carriers and semicoke residue, solid thermal carriers and semicoke residue enter circulating fluid bed hot-air furnace (10) from separator (5) bottom discharge mouth is discharged, semicoke residue burns and emits heat as ignition dope using the air after air preheater (18) heating in circulating fluid bed hot-air furnace (10), heat solid thermal barrier, solid thermal carriers after ash content after burning and heating enter a cyclonic separator (3) through circulating fluid bed hot-air furnace (10) top, solid thermal carriers enter revolution pyrolysis oven (4) and recycle from a cyclonic separator (3) feed opening after being collected by a cyclonic separator (3), ash content and flue gas are discharged from a cyclonic separator (3) venting port, enter second separator (20) dedusting after entering successively the cooling of waste heat boiler (17), air preheater (18), and the ash content that second separator dedusting is collected is discharged through blocking valve III (11), flue gas after dedusting is discharged from second separator (20), and wherein a part drains into chimney by discharge blower fan (19), and rest part is sent in circulating fluid bed hot-air furnace (10) and recycled through recirculation blower (16).
2. the method for comprehensive utilization of a kind of coal-based dregs of fat as claimed in claim 1, is characterized in that: described charging system (2) is impeller pump, ram pump, volume pump, spiral pump and resistance to any one in pump of speeding.
3. the method for comprehensive utilization of a kind of coal-based dregs of fat as claimed in claim 1, is characterized in that: described revolution pyrolysis oven (4) is lined revolving drum stoving oven.
4. the method for comprehensive utilization of a kind of coal-based dregs of fat as claimed in claim 1, is characterized in that: described cooling tower (6) is any one in packing tower, tray column and spray column.
5. the method for comprehensive utilization of a kind of coal-based dregs of fat as claimed in claim 1, is characterized in that: described tar cooler (8) is shell and tube heat exchanger or plate-type heat exchanger.
6. the method for comprehensive utilization of a kind of coal-based dregs of fat as claimed in claim 1, is characterized in that: described second separator (20) is sack cleaner or electric precipitator.
7. the method for comprehensive utilization of a kind of coal-based dregs of fat as claimed in claim 1, is characterized in that: described solid thermal carriers are any one in sand, coal gangue and resinous shale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310425990.9A CN103468288B (en) | 2013-09-18 | 2013-09-18 | Comprehensive utilization method of coal-based oil residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310425990.9A CN103468288B (en) | 2013-09-18 | 2013-09-18 | Comprehensive utilization method of coal-based oil residue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103468288A CN103468288A (en) | 2013-12-25 |
| CN103468288B true CN103468288B (en) | 2014-11-26 |
Family
ID=49793334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310425990.9A Active CN103468288B (en) | 2013-09-18 | 2013-09-18 | Comprehensive utilization method of coal-based oil residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103468288B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947844A (en) * | 2018-06-20 | 2018-12-07 | 珠海市高栏联合新材料有限公司 | A kind of Ergol cake treatment apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952558A (en) * | 2012-11-16 | 2013-03-06 | 东北电力大学 | Integral process for oil shale drying, heating, refining and semicoke burning |
-
2013
- 2013-09-18 CN CN201310425990.9A patent/CN103468288B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952558A (en) * | 2012-11-16 | 2013-03-06 | 东北电力大学 | Integral process for oil shale drying, heating, refining and semicoke burning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103468288A (en) | 2013-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103160301B (en) | Low-temperature carbonization apparatus and method for oil sand, oil sludge, oil shale and biomass | |
| CN201473491U (en) | A biomass fast pyrolysis device | |
| CN102952558B (en) | Integral process for oil shale drying, heating, refining and semicoke burning | |
| CN101624531A (en) | Device for preparing bio-oil by utilizing biomass spouted fluidized bed through pyrolysis and fractional condensation | |
| CN107244797A (en) | A kind of oiliness sludge confesses heated drying and Non-oxygen pyrolytic system and method indirectly | |
| CN202953993U (en) | Oil shale drying, heating, oil refining, semi-coke combustion integration device | |
| CN103911179A (en) | Coal gasification method and device | |
| CN101602953A (en) | The purification system of straw quick thermal cracking products | |
| CN103031135A (en) | Fluidized bed hierarchical coal pyrolysis reactor and coal pyrolysis method | |
| CN204874405U (en) | Biological oily preparation system | |
| CN104832226B (en) | A kind of coal liquifaction and coal gas power generating simultaneously device and method | |
| CN107892936A (en) | A kind of high dust-laden tar sub-prime purification processes technique | |
| CN105542854A (en) | Device and method for recovering paraffin from Fischer-Tropsch paraffin residues | |
| CN103409156B (en) | Heat carrier destructive distillation system for coal and method thereof | |
| CN103468288B (en) | Comprehensive utilization method of coal-based oil residue | |
| CN207243708U (en) | A kind of oiliness sludge confesses heated drying and Non-oxygen pyrolytic system indirectly | |
| CN203613150U (en) | Feed coal front-loading pyrolysis device used for large-scale pulverized coal furnace | |
| CN102433143A (en) | Pushing type vacuum direct heating oil shale dry distillation process and device thereof | |
| CN102994127A (en) | Low-rank coal multi-stage fluidized bed coal chemical industry multiple production system and method | |
| CN105001895A (en) | Bio-oil preparation system | |
| CN205803398U (en) | A kind of low order fine coal hydrogenation pressurization fast low temperature destructive distillation device | |
| CN107674696A (en) | High dust-laden tar comprehensive processing technique caused by a kind of fixed bed crushed coal pressure gasifying | |
| CN104560096B (en) | Continuous separation technology for oil sand | |
| CN107937073A (en) | A kind of system and technique for producing water-coal-slurry | |
| CN201713491U (en) | Production equipment for comprehensive utilization of renewable energy from waste plastics, tires, and waste engine oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |