CN104789259A - Filtering separation device for biomass pyrolytic heavy oil sludge and separation process thereof - Google Patents
Filtering separation device for biomass pyrolytic heavy oil sludge and separation process thereof Download PDFInfo
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- CN104789259A CN104789259A CN201510231801.3A CN201510231801A CN104789259A CN 104789259 A CN104789259 A CN 104789259A CN 201510231801 A CN201510231801 A CN 201510231801A CN 104789259 A CN104789259 A CN 104789259A
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Abstract
The invention discloses a filtering separation device for biomass pyrolytic heavy oil sludge and a separation process thereof. The separation process comprises the following steps: discharging the mixture of the heavy oil and the sludge from the bottom part of a fractionating tower at a high temperature, directly entering into a centrifuge filtering separation device from the upper side position along the inner wall tangential direction, filtering the heavy oil from the filtering nets on the side part and the upper part through a filtering channel, and discharging from the lower liquid oil outlet, and pumping into the fractionating tower to spray and circulate; and because the sludge is heavier than the heavy oil, discharging the sludge from the bottom part of a separator along the filtering channel and emulsifying. The process has the following advantages that (1) the continuous separation of the sludge and the liquid heavy oil is realized, the sludge is emulsified and cannot be polymerized into a solid so that the oil extraction rate of the liquid oil is increased; (2) the separated heavy oil is discharged through the sediments at bottom part of the separator and the bottom part of an intermediate tank so that the returned heavy oil does not contain excess impurities and the blockage of the pipe and the nozzle is avoided; and (3) the separation of the high-temperature sludge and the heavy oil is realized without an external force and the energy is saved.
Description
Technical field
The invention belongs to biomass new energy field, particularly a kind of filtering separation device of biomass pyrolytic heavy oil greasy filth and separating technology.
Background technology
Along with developing rapidly of society, the exploitation of the disposable energy is increasingly exhausted, and biomass are more and more subject to people's attention as secondary energy.Select novel renewable energy, reduce environmental pollution, become the major objective that people pursue.And current, China biomass pyrolytic made fuel oil technology starting evening, the shortcoming having that device is backward, technology is immature, pyrolysis productive rate is low etc., therefore do not form certain industrial scale.
Because the pyrolysis gas after biomass pyrolytic is through the condensation of separation column differing temps gradient; different products is had to produce; and general pyrolysis installation to there is pyrolysis incomplete; be separated halfway situation; so there are the solids components such as partial lignin, thermal barrier, biomass semicoke to enter separation column; be present in after chilling in the middle of heavy oil; add heavy oil viscosity and proportion; part oil product is made to be the greasy filth of somewhat mobility; this viscous oil, as can not get in time outer milk ejection, will cause separation column to return tower circulation line and equipment blocks and shuts down.
Summary of the invention
The object of the invention is to for biomass to provide a kind of filtering separation device and separating technology of biomass pyrolytic heavy oil greasy filth from downlink cycle fluid bed fast pyrolysis technique, by this tripping device, viscous oil and fluid oil are entered after in it, viscous oil is sunk outer milk ejection gradually, fluid oil also can realize circulation and return tower, makes separation column achieve continuous circulation, continuous seepage; And viscous oil obtains better process.
First-selection provides the technical scheme of the filtering separation device of biomass pyrolytic heavy oil greasy filth: comprise separation column, also comprises vertical centrifugal filter separator, emulsion reactor and heavy oil tundish; Described vertical centrifugal filter separator is the hollow cylinder that upper cylinder and lower cone body are connected to form; The top of described hollow cylinder is provided with heavy oil import, inner filtration channel, the bottom being provided with continuous helical is from top to bottom provided with greasy filth outlet, and described heavy oil import is connected with described filtration channel upper end import, described greasy filth exports to export with described filtration channel lower end and is connected; The cross section of described filtration channel is rectangle and the end face of filtration channel and two sides are filter screen structure; Heavy oil relief outlet at the bottom of the tower of described separation column is connected with the heavy oil import of vertical centrifugal filter separator by pipeline, and the greasy filth outlet of described vertical centrifugal filter separator bottom is connected by the greasy filth import of pipeline with described emulsion reactor top; The side of described vertical centrifugal filter separator bottom is provided with liquid oil outlet, described liquid oil outlet is connected with heavy oil tundish by pipeline, the bottom of described heavy oil tundish is provided with heavy oil and arranges mouth outward, and described heavy oil is arranged mouth outward and is provided with branch and by returning tower pump and pipeline is connected with the spray pipe on described separation column; The inwall of described vertical centrifugal filter separator is circumferentially with multiple lateral brace from top to bottom, and described filtration channel from top to bottom spirrillum to be erected in lateral brace and to maintain spacing between the inwall of filtration channel and vertical centrifugal filter separator.
Such scheme can more preferably:
Described lateral brace is the angle bar of horizontal welding, and described spacing is 200mm.
Described vertical centrifugal filter separator top is also provided with venting port, bottom is also provided with sewage draining exit.
Described heavy oil import edge is that tangential direction is connected with vertical centrifugal filter separator outer wall.
For steel plate, top and two sides are stainless steel punching net bottom described filtration channel.
The shell of described hollow cylinder is provided with thermal insulation layer; Described thermal insulation layer is preferably the insulating cotton layer of more than 15 millimeters thickness.
Then provide the separating technology of the filtering separation device applying above-mentioned biomass pyrolytic heavy oil greasy filth, the steps include:
(1) pyrolysis gas of biomass is after the process of separation column spray, and the heavy oil obtained and sludge mixture keep temperature 85 DEG C >=T >=60 DEG C to enter vertical centrifugal filter separator with flow velocity 0.5m/s≤V≤2m/s by the heavy oil relief outlet at the bottom of tower;
(2), heavy oil obtains greasy filth and liquid oil respectively after vertical centrifugal filter separator is separated; Wherein greasy filth keeps greasy filth temperature to be not less than 60 DEG C entering emulsion reactor through greasy filth outlet and carry out emulsification, and emulsification keeps temperature 85 DEG C >=T >=60 DEG C; Liquid oil is discharged by separator bottom side line and is entered heavy oil tundish, and liquid oil in a heavy oil tundish part enters separation column spray pipe by returning tower pump and pipeline carries out circulating, another part is arranged mouth outward by heavy oil and entered subsequent processing units;
(3) oil in water emulsion, through emulsion reactor emulsification enters subsequent processing units by the oil in water emulsion outlet at the bottom of still.
After running after a while, the dregs of fat precipitation that in the sepn process of vertical centrifugal filter separator, bottom produces is discharged by the sewage draining exit of separator bottom.
Compared with prior art, advantage of the present invention mainly contains: 1) achieve being continuously separated of greasy filth and liquid heavy oil, greasy filth is squeezed in product tank after emulsification, again can not aggregate into solid, thus improves the oil yield of liquid oils; 2) heavy oil after being separated is arranged outward through the precipitation of separator bottom, tundish bottom, ensure that to return in tower weight oil not contain undesired impurities, avoids the blocking of pipeline and nozzle.3) separator invented voluntarily, when not needing external force, achieves high temperature greasy filth and heavy oil separating, has saved the energy.
Accompanying drawing explanation
The filtering separation process flow diagram of Fig. 1 form biomass pyrolysis heavy oil greasy filth;
Fig. 2 is the structural representation of vertical centrifugal filter separator;
Fig. 3 is the A-A sectional view in Fig. 2;
Fig. 4 is the B-B sectional view in Fig. 2;
Fig. 5 is the distribution schematic diagram of angle bar.
In figure: 1, heavy oil import; 2, greasy filth outlet; 3, sewage draining exit; 4, emulsion reactor; 5, liquid oil outlet; 6, vertical centrifugal filter separator; 7, filtration channel (71, bottom steel plate, 72, filtering net, 73, reinforced steel); 8, venting port; 9, tower pump is returned; 10, mouth spray, 11, oil and gas import, 12, the outlet of pyrolysis dry gas, 13, separation column, 14, heavy oil relief outlet, 15, emulsifying agent entrance, 16, oil in water emulsion outlet, 17, spray pipe, 18, heavy oil tundish, 19, heavy oil arranges mouth outward, 20, angle bar.
Embodiment
See Fig. 1-4, a kind of filtering separation device of biomass pyrolytic heavy oil greasy filth, mainly comprises the separation column 13, vertical centrifugal filter separator 6, emulsion reactor 4 and the heavy oil tundish 18 that are connected by pipeline; Vertical centrifugal filter separator 6 is the hollow cylinder that upper cylinder and lower cone body are connected to form; The outside of hollow cylinder is provided with thermal insulation layer (being preferably the insulating cotton layer of more than 15 millimeters thickness), top is provided with heavy oil import 1, inner filtration channel 7, the bottom being provided with continuous helical is from top to bottom provided with greasy filth outlet 2, and heavy oil import 1 is connected with filtration channel 7 upper end import, greasy filth exports 2 and to export with filtration channel 7 lower end and be connected; The multiple angle bar 20 of inwall circumference welding from top to bottom of vertical centrifugal filter separator 6, filtration channel 7 from top to bottom spirrillum to be erected on angle bar 7 and to maintain spacing (when the upper cylinder diameter of vertical centrifugal filter separator is 4000mm between the inwall of filtration channel and 7 vertical centrifugal filter separators 6, this spacing can be chosen as 200mm, is beneficial to after liquid oil filters and directly falls by gravity); The cross section of filtration channel 7 is rectangle and filtration channel comprises bottom surface steel plate 71(5mm) and the filtering net 72(that is provided with of end face and two sides can be chosen as stainless steel punching net), each junction is provided with reinforced steel 73; Heavy oil relief outlet 14 at the bottom of the tower of separation column 13 is connected with the heavy oil import 1 of vertical centrifugal filter separator 7 by pipeline, and the greasy filth outlet 2 of vertical centrifugal filter separator 7 bottom is connected by the greasy filth import of pipeline with emulsion reactor 4 top; The side of vertical centrifugal filter separator 7 bottom is provided with liquid oil outlet 5, liquid oil outlet 5 is connected with heavy oil tundish 18 by pipeline, the bottom of heavy oil tundish 18 is provided with heavy oil and arranges mouth 19 outward, and heavy oil is arranged mouth 19 outward and is provided with branch and by returning tower pump 9 and pipeline is connected with the spray pipe 17 on separation column 13; The top of vertical centrifugal filter separator 7 is also provided with venting port 8, bottom and is also provided with sewage draining exit 3.
The separating technology of said apparatus is:
(1) pyrolysis gas of biomass, after downlink cycle fluidized bed pyrolysis is after being separated, from oil and gas import 11 enter separation column 13 carry out condensation spray (spray medium be separating treatment after tower at the bottom of heavy oil), produce heavy oil and sludge mixture after pyrolysis gas is condensed, can will discharge from pyrolysis dry gas outlet 12 by generating portion non-condensable gas in separation column;
(2) heavy oil and sludge mixture enter wherein from upper side along vertical centrifugal filter separator 6 inwall tangential direction by the heavy oil relief outlet 14 at the bottom of tower, and keep temperature 85 DEG C >=T >=60 DEG C, flow velocity 0.5m/s≤V≤2m/s, heavy oil and sludge mixture glide along filtration channel 7 under the effect of gravity and centrifugal force, and (filtration channel is directly welded in Membrane Separator Cylinder for CFB Boiler inwall, with sea line angle about 15-30 °), filtering net 72 filtering separation being filtered passage 7 both sides and top obtains greasy filth and liquid oil respectively, understand some gas due to high temperature and reaction in sepn process to produce, discharge from the venting port 8 at separator top,
(3), greasy filth keep temperature be not less than 60 DEG C through greasy filth outlet enter emulsion reactor 4, add emulsifying agent and carry out emulsification, emulsification keep temperature 85 DEG C >=T >=60 DEG C; Liquid oil by separator bottom side line discharge enter heavy oil tundish 18(simultaneously liquid oil can rinse the greasy filth of passage bottom, be convenient to greasy filth discharge smoothly), liquid oil in heavy oil tundish 18 part enters separation column 13 spray pipe 17 by returning tower pump 9 and pipeline carry out circulating thus achieve continuous seepage, another part arranges mouth 19 outward by heavy oil and enters subsequent processing units;
(4) oil in water emulsion, through emulsion reactor 4 emulsification enters subsequent processing units by the oil in water emulsion outlet 16 at the bottom of still;
(5), after running after a while, the dregs of fat precipitation that in vertical centrifugal filter separator 6 sepn process, bottom produces is discharged by the sewage draining exit 3 of separator bottom, can adopt the mode of regular deslagging.
Centrifugal filter separator in the present invention and heavy oil emulsive scheme, heavy oil tundish supporting, in form biomass pyrolysis device, the outer row of separation column heavy oil, circulation, emulsification provide quantity-produced guarantee.
Advantage of the present invention: 1) achieve being continuously separated of greasy filth and liquid heavy oil, greasy filth is squeezed in product tank after emulsification, again can not aggregate into solid, thus improves the oil yield of liquid oils; 2) heavy oil after being separated is arranged outward through the precipitation of separator bottom, tundish bottom, ensure that to return in tower weight oil not contain undesired impurities, avoids the blocking of pipeline and nozzle.3) separator invented voluntarily, when not needing external force, achieves high temperature greasy filth and heavy oil separating, has saved the energy.
Claims (10)
1. a filtering separation device for biomass pyrolytic heavy oil greasy filth, comprises separation column, it is characterized in that: also comprise vertical centrifugal filter separator, emulsion reactor and heavy oil tundish; Described vertical centrifugal filter separator is the hollow cylinder that upper cylinder and lower cone body are connected to form; The top of described hollow cylinder is provided with heavy oil import, inner filtration channel, the bottom being provided with continuous helical is from top to bottom provided with greasy filth outlet, and described heavy oil import is connected with described filtration channel upper end import, described greasy filth exports to export with described filtration channel lower end and is connected; The cross section of described filtration channel is rectangle and the end face of filtration channel and two sides are filter screen structure; Heavy oil relief outlet at the bottom of the tower of described separation column is connected with the heavy oil import of vertical centrifugal filter separator by pipeline, and the greasy filth outlet of described vertical centrifugal filter separator bottom is connected by the greasy filth import of pipeline with described emulsion reactor top; The side of described vertical centrifugal filter separator bottom is provided with liquid oil outlet, described liquid oil outlet is connected with heavy oil tundish by pipeline, the bottom of described heavy oil tundish is provided with heavy oil and arranges mouth outward, and described heavy oil is arranged mouth outward and is provided with branch and by returning tower pump and pipeline is connected with the spray pipe on described separation column; The inwall of described vertical centrifugal filter separator is circumferentially with multiple lateral brace from top to bottom, and described filtration channel from top to bottom spirrillum to be erected in lateral brace and to maintain spacing between the inwall of filtration channel and vertical centrifugal filter separator.
2. the filtering separation device of biomass pyrolytic heavy oil greasy filth according to claim 1, it is characterized in that: described lateral brace is the angle bar of horizontal welding, described spacing is 200mm.
3. the filtering separation device of biomass pyrolytic heavy oil greasy filth according to claim 1, is characterized in that: described vertical centrifugal filter separator top is also provided with venting port, bottom is also provided with sewage draining exit.
4. the filtering separation device of biomass pyrolytic heavy oil greasy filth according to claim 1, is characterized in that: described heavy oil import edge is that tangential direction is connected with vertical centrifugal filter separator outer wall.
5. the filtering separation device of biomass pyrolytic heavy oil greasy filth according to claim 1, is characterized in that: bottom described filtration channel, steel plate, top and two sides are stainless steel punching net.
6. the filtering separation device of biomass pyrolytic heavy oil greasy filth according to claim 5, is characterized in that: described steel plate is 5mm steel plate.
7. the filtering separation device of biomass pyrolytic heavy oil greasy filth according to claim 1, is characterized in that: the shell of described hollow cylinder is provided with thermal insulation layer.
8. the filtering separation device of biomass pyrolytic heavy oil greasy filth according to claim 7, is characterized in that: described thermal insulation layer is the insulating cotton layer of more than 15 millimeters thickness.
9. application rights requires the separating technology of the filtering separation device of the biomass pyrolytic heavy oil greasy filth described in 1-8, it is characterized in that, comprises the following steps:
(1) pyrolysis gas of biomass is after the process of separation column spray, and the heavy oil obtained and sludge mixture keep temperature 85 DEG C >=T >=60 DEG C to enter vertical centrifugal filter separator with flow velocity 0.5m/s≤V≤2m/s by the heavy oil relief outlet at the bottom of tower;
(2), heavy oil obtains greasy filth and liquid oil respectively after vertical centrifugal filter separator is separated; Wherein greasy filth keeps greasy filth temperature to be not less than 60 DEG C entering emulsion reactor through greasy filth outlet and carry out emulsification, and emulsification keeps temperature 85 DEG C >=T >=60 DEG C; Liquid oil is discharged by separator bottom side line and is entered heavy oil tundish, and liquid oil in a heavy oil tundish part enters separation column spray pipe by returning tower pump and pipeline carries out circulating, another part is arranged mouth outward by heavy oil and entered subsequent processing units;
(3) oil in water emulsion, through emulsion reactor emulsification enters subsequent processing units by the oil in water emulsion outlet at the bottom of still.
10. the separating technology of the filtering separation device of biomass pyrolytic heavy oil greasy filth according to claim 9, is characterized in that, the dregs of fat precipitation that in the sepn process of vertical centrifugal filter separator, bottom produces is discharged by the sewage draining exit of separator bottom.
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| CN2780345Y (en) * | 2005-04-06 | 2006-05-17 | 金波 | Combined centrifugal sand removal filtering device |
| CN102583915A (en) * | 2012-02-03 | 2012-07-18 | 中国石油化工股份有限公司 | Method for processing oily sludge in oil field |
| CN203319938U (en) * | 2013-06-27 | 2013-12-04 | 山东泰然新能源有限公司 | High-automation continuous-type online separation and rapid cooling system for biomass pyrolysis oil |
| CN104341081A (en) * | 2013-07-30 | 2015-02-11 | 麦王环境技术股份有限公司 | Harmless treatment method for separation and recovery of oily sludge |
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2015
- 2015-05-09 CN CN201510231801.3A patent/CN104789259B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2780345Y (en) * | 2005-04-06 | 2006-05-17 | 金波 | Combined centrifugal sand removal filtering device |
| CN102583915A (en) * | 2012-02-03 | 2012-07-18 | 中国石油化工股份有限公司 | Method for processing oily sludge in oil field |
| CN203319938U (en) * | 2013-06-27 | 2013-12-04 | 山东泰然新能源有限公司 | High-automation continuous-type online separation and rapid cooling system for biomass pyrolysis oil |
| CN104341081A (en) * | 2013-07-30 | 2015-02-11 | 麦王环境技术股份有限公司 | Harmless treatment method for separation and recovery of oily sludge |
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Effective date of registration: 20230323 Address after: 257300 Chen Guan Zhen He Xin Lu and Yong Qing Lu Intersection, Guangrao County, Dongying City, Shandong Province 300 meters west to the north of the road Patentee after: Guangrao County Zerun Environmental Protection Technology Co.,Ltd. Address before: 257300 Guangrao Economic Development Zone, Shandong, Dongying Patentee before: SHANDONG TOROYAL BIOENGINEERING CO.,LTD. |
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Denomination of invention: A filtration separation device and separation process for biomass pyrolysis heavy oil sludge Effective date of registration: 20230726 Granted publication date: 20170111 Pledgee: Shandong Guangrao Rural Commercial Bank Co.,Ltd. Pledgor: Guangrao County Zerun Environmental Protection Technology Co.,Ltd. Registration number: Y2023980049890 |
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