CN101623574A - Method for filtering Fischer-Tropsch synthesized heavy wax - Google Patents
Method for filtering Fischer-Tropsch synthesized heavy wax Download PDFInfo
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- CN101623574A CN101623574A CN200910012837A CN200910012837A CN101623574A CN 101623574 A CN101623574 A CN 101623574A CN 200910012837 A CN200910012837 A CN 200910012837A CN 200910012837 A CN200910012837 A CN 200910012837A CN 101623574 A CN101623574 A CN 101623574A
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Abstract
The invention discloses a method for filtering Fischer-Tropsch synthesized heavy wax. The method is as follows: feeding heavy wax extracted from a Fischer-Tropsch synthesized reactor into a high-gradient magnetic filter to adsorb and remove the iron-based catalyst in the heavy wax, and then entering a device of next procedure. The method of the invention adopts the high-gradient magnetic filter to adsorb and remove the iron-based catalyst in the heavy wax, the flow is simple and is convenient for operation, and the material consumption is lower, no waste residue is generated, thereby avoiding the occurrence of secondary pollution. Meanwhile, the filtering result is obvious, which can be up to more than 99. 5%, the device energy consumption is the lowest in the country, thereby being worth promotion and application.
Description
One, technical field
The invention belongs to the Fischer-Tropsch synthesis technical field, be specifically related to a kind of filter method of Tscher-Topsch synthesis of heavy wax.
Two, background technology
Oil is the goods and materials commodity of a national strategy.China is a rich coal, oil-poor country, and petroleum resources are rare, and annual import substantial oil is to satisfy the demand that national economy increases.Therefore, seeking alternative energy source is the problem of a national strategy.Fischer-tropsch synthesis process is to be that stock yard is bonded into liquid fuel with coal or natural gas, H in fischer-tropsch reaction
2Generate hydrocarbon product with CO going back on the ortho states catalyst.In process of production, extract the partially liq hydro carbons out as heavy wax from the middle part of Fischer-Tropsch synthesis device usually, the product processing unit (plant) of deoiling is processed processing.Before the product processing unit (plant) of deoiling is processed processing, need the ferrum-based catalyst in the heavy wax is deviate from, satisfy the requirement of oil product processing unit (plant).At present, the filter method of Tscher-Topsch synthesis of heavy wax all adopts clay-filtered method, and technical process is: the heavy wax raw material synthetic from Fischer-Tropsch carries out gas-liquid separation through the heavy wax head tank, and gas partly returns the synthesis tail gas system, and liquid is stand-by as filtering raw material.After heavy diesel fuel and carclazyte filtration adjuvant mix through hybrid system, utilize pump to filter the precoating of machine aided filtering system, form and filter required primary condition, be ready to back incision heavy wax filtration system and filter, filter process adopts pump as filtering power and flow-control source.After heavy wax reaches requirement through filter, send into product intermediate products storage tank stores buffering and be pumped into the oil product processing unit (plant) by qualified wax.Above-mentioned clay-filtered method need consume a large amount of carclazytes, has increased material consumption, and flow process is also comparatively complicated, not easy to operate, also can produce waste residue, causes secondary pollution, is difficult to apply.
Three, summary of the invention
It is low to the purpose of this invention is to provide a kind of material consumption, and flow process is simple, easy operating, can not produce waste residue, causes the filter method of the Tscher-Topsch synthesis of heavy wax of secondary pollution.
For achieving the above object, the technical solution used in the present invention is: this method be for sending into high gradient magnetic filter from the heavy wax that the Fischer-Tropsch synthesis device is extracted out, after wherein ferrum-based catalyst being adsorbed remove, enter down the preface device again.
The ferrum-based catalyst that is adsorbed in the high gradient magnetic filter is discharged by the flushing of backwash controller.
The scouring media that above-mentioned backwash controller adopts is atoleine or diesel oil.
Above-mentioned high gradient magnetic filter is the electromagnetism high gradient magnetic filter.
Above-mentioned high gradient magnetic filter is the permanent-magnet high gradient magnetic filter.
The inventive method is to adopt high gradient magnetic filter that the ferrum-based catalyst in the heavy wax is adsorbed removal, and flow process is simple, easy operating, and material consumption is lower, also can not produce waste residue, has avoided the generation of secondary pollution.Simultaneously, filter effect is remarkable, can reach more than 99.5%, and plant energy consumption is domestic minimum, is worthy of popularization.Below two forms be respectively and adopt the inventive method to filter forward and backward heavy wax to form:
Heavy wax is formed before filtering
| Project | Design basis | Project | Design basis |
| Temperature (℃) | ??250 | Mole is formed (%) | |
| Pressure (MPa) (G) | ??0.03 | ??CO+H 2+CO 2+H 2+N 2+Ar | ??0.0875 |
| Weight flow (Kg/h) | ??7508 | ??CH 4+C 2H 4+C 2H 6+LPG | ??0.0445 |
| Volume flow (m3/h) | ??83.9 | ??C 5-10+C 11-20+C 21+ | ??0.868 |
| Liquid component (Kg/hr) | ??7435 | Always | ??1 |
| Gas component (Kg/hr) | ??73 | ??Fe +Content (ug/g) | ??＜500 |
Filtering the back heavy wax forms
| Project | Design basis | Scope | Project | Design basis |
| Temperature (℃) | ??180 | ??150-180 | Mole is formed (%) | Liquid phase component |
| Pressure (MPa) (G) | ??0.4 | ??0.03-0.05 | ??CO+H 2+CO 2+N 2+Ar | ??0.063 |
| Weight flow (Kg/h) | ??7435 | ??CH 4+C 2H 4+C 2H 6+LPG | ??0.012 | |
| Volume flow (m3/h) | ??10.6 | ??C 5-10+C 11-20+C 21+ | ??0.925 | |
| ??Fe +Content ppm | ??≤5 | Always | ??1 |
As seen from the above table: adopt the inventive method to filter back Fe
+(ferrum-based catalyst) content reaches preface matching requirements down less than 5ppm.
Four, the specific embodiment
The inventive method comprises equipment such as heavy wax head tank, high gradient filter, backwash controller and pump.Reduce pressure behind the 0.15MPa (A), 239 ℃ from the 2.75MPa (A) of Fischer-Tropsch synthesis device isolated by filtration jar, 250 ℃ heavy wax, be cooled to 160-180 ℃ through feed cooler and enter the heavy wax head tank, Gravity Separation (pressure in the heavy wax head tank maintains about 0.13～0.15MPa (A)) through the heavy wax head tank discharges gas and enters in the Fischer-Tropsch synthesis device from tank deck.Heavy wax in jar is pumped into high gradient magnetic filter by heavy wax, and through behind the filter, formation 0.4MPa (A), 180 ℃ of heavy waxs enter down the preface device.Ferrum-based catalyst is adsorbed on filter interior, through the flushing of backwash controller, discharges high gradient magnetic filter.The scouring media that the backwash controller adopts is atoleine or diesel oil.
Claims (5)
1, a kind of filter method of Tscher-Topsch synthesis of heavy wax, this method is: will send into high gradient magnetic filter from the heavy wax that the Fischer-Tropsch synthesis device is extracted out, and after wherein ferrum-based catalyst being adsorbed remove, enter down the preface device again.
2, the filter method of a kind of Tscher-Topsch synthesis of heavy wax according to claim 1 is characterized in that: the ferrum-based catalyst that is adsorbed in the high gradient magnetic filter is discharged by the flushing of backwash controller.
3, the filter method of a kind of Tscher-Topsch synthesis of heavy wax according to claim 2 is characterized in that: the scouring media that described backwash controller adopts is atoleine or diesel oil.
4, according to the filter method of right 1 or 2 described kinds of Tscher-Topsch synthesis of heavy wax, it is characterized in that: described high gradient magnetic filter is the electromagnetism high gradient magnetic filter.
5, according to the filter method of right 1 or 2 described kinds of Tscher-Topsch synthesis of heavy wax, it is characterized in that: described high gradient magnetic filter is the electromagnetism high gradient magnetic filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910012837A CN101623574A (en) | 2009-07-31 | 2009-07-31 | Method for filtering Fischer-Tropsch synthesized heavy wax |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910012837A CN101623574A (en) | 2009-07-31 | 2009-07-31 | Method for filtering Fischer-Tropsch synthesized heavy wax |
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| CN101623574A true CN101623574A (en) | 2010-01-13 |
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| CN200910012837A Pending CN101623574A (en) | 2009-07-31 | 2009-07-31 | Method for filtering Fischer-Tropsch synthesized heavy wax |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172495A (en) * | 2011-01-31 | 2011-09-07 | 神华集团有限责任公司 | Method for removing wax and iron compound mixed solid impurities in filters and use thereof |
| WO2014000501A1 (en) | 2012-06-29 | 2014-01-03 | 阳光凯迪新能源集团有限公司 | Combined filtering process for recycling precious metal from fischer-tropsch synthetic product |
| WO2014000500A1 (en) | 2012-06-29 | 2014-01-03 | 阳光凯迪新能源集团有限公司 | High-efficiency dynamic slurry-liquid-separating filtration apparatus and filtration method therefor |
| CN105542855A (en) * | 2016-01-27 | 2016-05-04 | 北京康泰丰源科技发展有限公司 | Wax residue treating method and system |
| CN108102716A (en) * | 2017-12-28 | 2018-06-01 | 神华集团有限责任公司 | The filtration system and method for Fischer-Tropsch wax in a kind of Fischer-Tropsch synthesis |
-
2009
- 2009-07-31 CN CN200910012837A patent/CN101623574A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172495A (en) * | 2011-01-31 | 2011-09-07 | 神华集团有限责任公司 | Method for removing wax and iron compound mixed solid impurities in filters and use thereof |
| CN102172495B (en) * | 2011-01-31 | 2013-03-27 | 神华集团有限责任公司 | Method for removing wax and iron compound mixed solid impurities in filters and use thereof |
| WO2014000501A1 (en) | 2012-06-29 | 2014-01-03 | 阳光凯迪新能源集团有限公司 | Combined filtering process for recycling precious metal from fischer-tropsch synthetic product |
| WO2014000500A1 (en) | 2012-06-29 | 2014-01-03 | 阳光凯迪新能源集团有限公司 | High-efficiency dynamic slurry-liquid-separating filtration apparatus and filtration method therefor |
| EP2868756A4 (en) * | 2012-06-29 | 2016-07-20 | Sunshine Kaidi New Energy Group Co Ltd | Combined filtering process for recycling precious metal from fischer-tropsch synthetic product |
| CN105542855A (en) * | 2016-01-27 | 2016-05-04 | 北京康泰丰源科技发展有限公司 | Wax residue treating method and system |
| CN108102716A (en) * | 2017-12-28 | 2018-06-01 | 神华集团有限责任公司 | The filtration system and method for Fischer-Tropsch wax in a kind of Fischer-Tropsch synthesis |
| CN108102716B (en) * | 2017-12-28 | 2023-03-31 | 神华集团有限责任公司 | Fischer-Tropsch wax filtering system and method in Fischer-Tropsch synthesis process |
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Open date: 20100113 |