CN104479718A - Method for refining oil by adopting waste plastics - Google Patents
Method for refining oil by adopting waste plastics Download PDFInfo
- Publication number
- CN104479718A CN104479718A CN201410642686.4A CN201410642686A CN104479718A CN 104479718 A CN104479718 A CN 104479718A CN 201410642686 A CN201410642686 A CN 201410642686A CN 104479718 A CN104479718 A CN 104479718A
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- CN
- China
- Prior art keywords
- oil
- gas
- plastic
- oil gas
- waste
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- 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.)
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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
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/04—Diesel oil
Abstract
The invention relates to the field of the chemical industry, and especially relates to a method for refining oil by adopting waste plastics. The method comprises the following steps: drying the waste plastics with a screw conveyer as a charger, carrying out catalytic thermal cracking on the waste plastics in a sealed reaction kettle to form oil gas, extruding powdery carbon black residues in the oil gas, cooling the extruded residues to be used as a rubber industrial raw material, allowing the oil gas to go through a desulfurization and dechlorination tower in order to remove hydrogen sulfide and hydrogen chloride gas in the oil gas, carrying out catalytic cracking on the oil gas in a catalysis tower to obtain high quality oil gas, separating gasoline and diesel oil in the oil gas through a rectifying tower, and recovering uncondensed gas in the oil gas to be used to heat the waste plastics as heat energy. The method has the advantages of full automation, no pollution, zero energy consumption, environmental protection, low consumption, easy operation, and realization of harmless pollution-free optimal recycling of the waste plastics.
Description
Technical field
The present invention relates to chemical field, particularly relate to a kind of method adopting waste plastic oil-refining.
Background technology
Along with the development that petroleum industry is advanced by leaps and bounds, be that raw-material plastic prod is used widely in national economy every field with oil, plastics are while bringing convenience to the life of people, also create day by day serious pollution, discarded plastic waste packing bag in the environment and useless plastic sheeting for farm use can damage look of the city and ecotope;
At present, the oil refining method of domestic much waste plastic oil-refining equipment, can not continuous seepage, and energy consumption is high, poor stability, often occurs explosion issues, and fails to solve in process and discharge poisonous fume, waste water and waste residue problem, thus produces secondary pollution.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of method adopting waste plastic oil-refining, this oil refining method is environment friendly and pollution-free, decreases the discharge of waste gas, and energy continuous seepage, reduces energy consumption, easy to operate.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method adopting waste plastic oil-refining, the method is: 1) plastic waste sends into self-conveyor feed charging opening through rotary conveyor, by self-conveyor feed, plastics are pushed ahead, at self-conveyor feed front end self-conveyor feed heating jacket by flue gas heating, achieve plastic waste drying and processing;
2) plastic conveying and plastic will be dried in liquefaction still by worm conveyor, when plastic warp cross molten salt furnace to liquefaction still heating and melting after squeeze into gasification still (reactor have require that temperature allows the plastics of liquefaction gasify again compared with high technology).Enter gasification still to heat through molten salt furnace, molten plastic is again by the gasification of gasification still, and namely liquefied plastics becomes oil gas body immediately, and the powdery carbon black residue in oil gas body; Complete plastic waste catalytic pyrolysis;
3) plastic waste can produce oil gas containing different components through catalytic pyrolysis, by vacuum pump, oil gas is delivered to catalytic tower and carry out catalytic reforming, be added with gas phase catalyst in catalytic tower, impel oil gas to gasify further, oil gas is catalyzed is further decomposed into the better oil product of quality;
4) oil gas of the better oil product of quality enters rectifying tower, because oil gas each component boiling point is different, thus petrol and diesel oil is separated, heavy oil comes back to cracking again in reactor by reflux pump;
5) gas of oil product can not being become, by separating in catch pot, by vacuum pump, its extraction being compressed in gas-holder, for the fuel of plastic waste process furnace after cooling;
6) waste gas through burning does not directly discharge in an atmosphere, and wherein some is toxic gas and HS gas, is forced through a spray equipment passes into and carry out neutralizing treatment containing in NaOH pond with induced draft fan.
Plastic waste is that state of nature enters in worm conveyor, get the hang of pine of splashing, centre has a lot of space to there is air to bring into, in order to extrude in worm conveyor in the plastic containing air composition, then have employed and reduce Screw Conveyors method successively, squeeze out space between plastic waste thus extrude air.Powdery carbon black residue in oil gas is extruded and can be used as rubber industry raw material after cooling.
The invention has the beneficial effects as follows, the present invention adopts the method for waste plastic oil-refining, and reactor utilizes Salt heater to heat, and thermo-efficiency can reach 80% ~ 90%, improves the efficiency of 50% ~ 60% than traditional type of heating; Heating source initialization is heated for oil product (diesel oil) by means of outer.Until plastic waste after cracking generation enough can not become oily inflammable gas in reactor, then there is self to produce and oily inflammable gas can not be become as heating source; The residue produced after plastic cracking, main component is powdered carbon black, is rubber industry raw material, turns waste into wealth, protection of the environment after the cooling of powdery carbon black; This plastic waste becomes oily rate to reach 30-70% according to plastic nature; The disposable standard that can reach nonstandard petrol and diesel oil of plastic cracking, do not have a time in traditional technology, two times, three times point, centre province three process, reduces energy consumption, improves benefit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
With reference to accompanying drawing, a kind of method adopting waste plastic oil-refining, the method is: 1) plastic waste sends into self-conveyor feed charging opening through rotary conveyor, by self-conveyor feed, plastics are pushed ahead, at self-conveyor feed front end self-conveyor feed heating jacket by flue gas heating, achieve plastic waste drying and processing;
2) plastic conveying and plastic will be dried in liquefaction still by worm conveyor, when plastic warp cross molten salt furnace to liquefaction still heating and melting after squeeze into gasification still (reactor have require that temperature allows the plastics of liquefaction gasify again compared with high technology).Enter gasification still to heat through molten salt furnace, molten plastic is again by the gasification of gasification still, and namely liquefied plastics becomes oil gas body immediately, and the powdery carbon black residue comprised in oil gas body; Complete plastic waste catalytic pyrolysis; By a certain percentage liquid-phase catalyst is injected in anti-gasification still with ram pump while the charging of plastic waste catalytic pyrolysis;
3) plastic waste can produce oil gas containing different components through catalytic pyrolysis, by vacuum pump, oil gas is delivered to catalytic tower and carry out catalytic reforming, be added with gas phase catalyst in catalytic tower, impel oil gas to gasify further, oil gas is catalyzed is further decomposed into the better oil product of quality;
4) oil gas of the better oil product of quality enters rectifying tower, because oil gas each component boiling point is different, thus petrol and diesel oil is separated, heavy oil comes back to cracking again in reactor by reflux pump;
5) gas of oil product can not being become, by separating in catch pot, by vacuum pump, its extraction being compressed in gas-holder, for the fuel of plastic waste process furnace after cooling;
Plastic waste is that state of nature enters in worm conveyor, get the hang of pine of splashing, centre has a lot of space to there is air to bring into, in order to extrude in worm conveyor in the plastic containing air composition, then have employed and reduce Screw Conveyors method successively, squeeze out space between plastic waste thus extrude air.Before entering reactor, be not enough to play air-isolation enter reactor ability, thus serve and completely cut off air effect with reactor.
The fused salt of molten salt furnace, by electrically heated, reaches liquefaction, passes through high-temperature melting salt pump, get to boiler and be heated to technological temperature by combustion engine, give liquefaction still, the heat supply of gasification still, so not only improve thermo-efficiency and equipment life can also be made longer, safer, temperature might as well control.
Desulfurization dehydrogenation tower plays desulfurization dehydrogenation, plays isolation foreign material simultaneously and enter catalytic tower function with air-flow.
Catalytic tower is the container of a surrounding waste heat waste gas heating, and inner bag fills the catalyzer impelling oil gas catalytic decomposition, and its function makes the further cracking of oil gas produce better oil gas, and oil gas is separated petrol and diesel oil and heavy oil by rectifying tower.Oil product gas can not be become to be taken away by vacuum pump, and remaining gasification temperature is higher in catalytic tower control temperature gasified, and cannot become residue, and heavy oil refluxes bottom catalytic tower, comes back to cracking again in reactor;
Waste gas through burning does not directly discharge in an atmosphere, and wherein some is toxic gas and HS gas, is forced through a spray equipment and passes into and neutralize containing in NaOH pond, realize in treating processes without blowdown with induced draft fan.
Claims (4)
1. adopt a method for waste plastic oil-refining, the method is:
1) plastic waste sends into self-conveyor feed charging opening through rotary conveyor, by self-conveyor feed, plastics is pushed ahead, and at self-conveyor feed front end self-conveyor feed heating jacket by flue gas heating, achieves plastic waste drying and processing;
2) plastic conveying and plastic will be dried in liquefaction still by worm conveyor, when plastic warp cross molten salt furnace to liquefaction still heating and melting after squeeze into gasification still; Enter gasification still to heat through molten salt furnace, molten plastic is again by the gasification of gasification still, and namely liquefied plastics becomes oil gas body immediately, and the powdery carbon black residue in oil gas body; Complete plastic waste catalytic pyrolysis;
3) plastic waste can produce oil gas containing different components through catalytic pyrolysis, by vacuum pump, oil gas is delivered to catalytic tower and carry out catalytic reforming, be added with gas phase catalyst in catalytic tower, impel oil gas to gasify further, oil gas is catalyzed is further decomposed into the better oil product of quality;
4) oil gas of the better oil product of quality enters rectifying tower, because oil gas each component boiling point is different, thus petrol and diesel oil is separated, heavy oil comes back to cracking again in reactor by reflux pump;
5) gas of oil product can not being become, by separating in catch pot, by vacuum pump, its extraction being compressed in gas-holder, for the fuel of plastic waste process furnace after cooling;
6) waste gas through burning does not directly discharge in an atmosphere, and wherein some is toxic gas and HS gas, is forced through a spray equipment passes into and neutralize containing in NaOH pond with induced draft fan.
2. the method for employing waste plastic oil-refining according to claim 1, it is characterized in that: plastic waste state of nature enters in worm conveyor, get the hang of pine of splashing, centre has a lot of space to there is air to bring into, in order to extrude in worm conveyor in the plastic containing air composition, then have employed and reduce Screw Conveyors method successively, squeeze out space between plastic waste thus extrude air.
3. the method for employing waste plastic oil-refining according to claim 1, is characterized in that: by a certain percentage liquid-phase catalyst is injected gasification with ram pump while the charging of plastic waste catalytic pyrolysis
In still.
4. the method for employing waste plastic oil-refining according to claim 1, is characterized in that: the powdery carbon black residue in oil gas is extruded and can be used as rubber industry raw material after cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410642686.4A CN104479718A (en) | 2014-11-14 | 2014-11-14 | Method for refining oil by adopting waste plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410642686.4A CN104479718A (en) | 2014-11-14 | 2014-11-14 | Method for refining oil by adopting waste plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104479718A true CN104479718A (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410642686.4A Pending CN104479718A (en) | 2014-11-14 | 2014-11-14 | Method for refining oil by adopting waste plastics |
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| Country | Link |
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| CN (1) | CN104479718A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062536A (en) * | 2015-07-17 | 2015-11-18 | 刘云 | Direct-fired waste plastic oil refining device |
| CN105419842A (en) * | 2015-12-09 | 2016-03-23 | 陕西科技大学 | Secondary heat cracking tower for waste plastic and molten salt |
| CN105583213A (en) * | 2015-12-29 | 2016-05-18 | 杨成志 | Method and special equipment for innocent treatment and energy utilization of rubbish plastic |
| CN107236568A (en) * | 2016-03-29 | 2017-10-10 | 河南沐桐环保产业有限公司 | A kind of junked tire low-temperature negative-pressure continuous cracking device and method |
| CN107364039A (en) * | 2017-07-17 | 2017-11-21 | 福建双福缘新能源科技发展有限公司 | Organic synthesis discarded object harmless treatment process flow |
| CN107446610A (en) * | 2017-07-07 | 2017-12-08 | 北京昊海天际科技有限公司 | A kind of method for being exclusively used in waste plastics industrial treatment in sorting rubbish |
| CN112831338A (en) * | 2020-12-30 | 2021-05-25 | 中塑汇鑫科技发展有限公司 | Process for preparing oil by continuously cracking mixed plastics in garbage at low temperature |
| CN113214858A (en) * | 2021-05-17 | 2021-08-06 | 智慧分享(黑龙江)新能源科技开发有限公司 | Preparation method of low-sulfur environment-friendly boiler oil |
-
2014
- 2014-11-14 CN CN201410642686.4A patent/CN104479718A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062536A (en) * | 2015-07-17 | 2015-11-18 | 刘云 | Direct-fired waste plastic oil refining device |
| CN105419842A (en) * | 2015-12-09 | 2016-03-23 | 陕西科技大学 | Secondary heat cracking tower for waste plastic and molten salt |
| CN105583213A (en) * | 2015-12-29 | 2016-05-18 | 杨成志 | Method and special equipment for innocent treatment and energy utilization of rubbish plastic |
| CN107236568A (en) * | 2016-03-29 | 2017-10-10 | 河南沐桐环保产业有限公司 | A kind of junked tire low-temperature negative-pressure continuous cracking device and method |
| CN107446610A (en) * | 2017-07-07 | 2017-12-08 | 北京昊海天际科技有限公司 | A kind of method for being exclusively used in waste plastics industrial treatment in sorting rubbish |
| CN107364039A (en) * | 2017-07-17 | 2017-11-21 | 福建双福缘新能源科技发展有限公司 | Organic synthesis discarded object harmless treatment process flow |
| CN112831338A (en) * | 2020-12-30 | 2021-05-25 | 中塑汇鑫科技发展有限公司 | Process for preparing oil by continuously cracking mixed plastics in garbage at low temperature |
| CN113214858A (en) * | 2021-05-17 | 2021-08-06 | 智慧分享(黑龙江)新能源科技开发有限公司 | Preparation method of low-sulfur environment-friendly boiler oil |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150401 |
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| WD01 | Invention patent application deemed withdrawn after publication |