CN1307084A - Process for producing gasoline and diesel oil from waste plastics - Google Patents
Process for producing gasoline and diesel oil from waste plastics Download PDFInfo
- Publication number
- CN1307084A CN1307084A CN00113717A CN00113717A CN1307084A CN 1307084 A CN1307084 A CN 1307084A CN 00113717 A CN00113717 A CN 00113717A CN 00113717 A CN00113717 A CN 00113717A CN 1307084 A CN1307084 A CN 1307084A
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- CN
- China
- Prior art keywords
- waste
- used plastics
- diesel oil
- cracking
- vapour
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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
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Waste plastics are made into gasoline and diesel oil through catalytic cracking in a cracker, separation in cyclone separator, cooling in a cooler and final fractionatino in a fractiional reactor. The said production process is high in speed, high in yield, low in cost, pollutionless and reliable.
Description
The present invention relates to a kind of technology of producing petrol and diesel oil with waste or used plastics.
In the modern life, the application of plastics is very extensive, but " white pollution " that cause therefrom also perplexing people day by day.At present, mainly contain three kinds of landfill, granulation regeneration and cracking for the processing of waste or used plastics.Landfill not only takes up an area of, and serious to environmental destruction.The granulation regeneration though can prolong the work-ing life of waste or used plastics, after recycling, finally still can't be handled.Cracking is that waste or used plastics is become gasoline and diesel oil, so extremely people pay close attention to.The waste or used plastics cracking can be divided into thermo-cracking and cracking catalyst two classes.Mainly there is following shortcoming in existing thermo-cracking:
1, the cracking temperature of thermo-cracking requirement is higher, generally about 600 ℃.Waste or used plastics is an example with the olefin polymer, in its molecule the C-C bond energy be generally less than 83 kilocalories/rub, thereby easily produce micromolecular hydro carbons during cracking reaction.Because these small molecules hydro carbons are difficult for reclaiming, so make the productive rate of gasoline, diesel oil lower, productive rate only is 2～15%;
2, the speed of response of thermo-cracking is slow.In the pyrolyzer the fused waste or used plastics can not be cracked into gasoline, diesel oil very soon and discharge, easily stick together with fused waste or used plastics not, form big block.With the polypropylene in the plastic waste is example, and the shaping extrusion temperature of its plastic ties is 150～280 ℃; The flat filament melting index of producing Polywoven Bag is 2.5～3.5; The flow temperature of blown film is 170～175 ℃.And big block thermal conduction extreme difference is difficult for fusing.When the pyrolyzer temperature rises to 500～600 ℃, block bottom and contact position, the pyrolyzer bottom local superheating of directly being heated, the gas of its generation can not be broken through big viscosity block discharge, can produce local pressure, and blast;
3, in thermal cracking processes, side reactions such as aromizing, condensation, polymerization are stronger, and cracking vapour easy blocking pipe when condensation raises furnace pressure, and this not only causes difficulty to the liquid distillation that cracking goes out, and influences quality product, and very easily blasts;
4, fuel consumption is big, has increased the cracking cost;
5, the difficult small molecules discharge that reclaims is serious to atmospheric pollution.Cracking catalyst, still at the experimental stage at present, can't form the batch process scale.Its main drawback is: oil yield is low, the production cost height, and quality product does not reach national standard.As: octane value does not reach GB in the gasoline of its output; Diesel number is not up to standard;-No. 10 diesel oil can solidify at subzero 10 ℃, and No. 0 diesel oil promptly solidifies at 0 ℃.
The objective of the invention is to avoid above-mentioned weak point of the prior art, and provide a kind of cracking rapid, the productive rate height, cost is low, and is pollution-free, reliably a kind of technology of producing petrol and diesel oil with waste or used plastics of production safety.
Purpose of the present invention can reach by following measure:
A kind of technology of producing vapour, diesel oil with waste or used plastics, its special character is: its production stage is:
1) waste or used plastics is clean, dry;
2) atlapulgite and waste or used plastics are added in the cracking still by 100: 1.5～2.5 proportioning;
3) the heating pyrolyze still carries out scission reaction, and Heating temperature is 230～400 ℃; The cracking vapour that scission reaction is obtained imports cyclonic separator earlier, and removing foreign matter and defective lysate obtain pure cracking vapour; Again pure cracking vapour is imported water cooler, be cooled to liquid lysate; Import in the receiving tank more at last;
4) lysate in the receiving tank is imported still kettle, fractionate out gasoline and diesel oil, be respectively charged into storage tank.
Of the present invention with in atlapulgite and the waste or used plastics adding cracking still, to add atlapulgite earlier, it is good adding waste or used plastics again.
The proportioning of waste or used plastics of the present invention and atlapulgite was advisable with 100: 2.0.
The temperature of heating pyrolyze still of the present invention is advisable with 250～370 ℃.
The invention will be further described below in conjunction with specific embodiment:
Waste or used plastics raw material of the present invention can be waste and old plastics such as polyethylene, polypropylene, polystyrene woven bag, film, rope, and catalyzer adopts atlapulgite, and HG/T2569-94 is the best with the H type, and production technique is as follows:
1, cleaning, drying.Remove the foreign material in the waste or used plastics, soak, remove floating dust, the cool solarization or oven dry with clear water.During oven dry, for preventing plastic bonding, temperature should be lower than 120 ℃, generally is advisable with 80～100 ℃.
2, reinforced.Waste or used plastics and catalyzer are added cracking still.Catalyzer adopts atlapulgite.For avoid at the beginning of the reacting by heating waste or used plastics directly with contact issuable local heating at the bottom of the still, being advisable in the first adding of the atlapulgite cracking still.The proportioning of waste or used plastics and atlapulgite is 100: 1.5～2.5., is advisable with 100: 2.0.
3, heating pyrolyze still.Heating temperature can be 230～400 ℃, is advisable with 250～370 ℃.Cracking vapour, promptly gas mixture such as gasoline, diesel oil enters cyclonic separator by pipeline, and removing foreign matter and defective lysate purify cracking vapour; After water cooler becomes liquid lysate, enter receiving tank.
4, the lysate in the receiving tank is pumped into still kettle, fractionate out gasoline and diesel oil, be respectively charged into storage tank.Gasoline fractionation section column top temperature is 70～180 ℃, and diesel oil fractionation section column top temperature is 180～380 ℃.
The present invention compared with prior art has following advantage:
1, cracking temperature is low, and fuel consumption is few, and production equipment is simple, small investment, and production cost is low;
2, make catalyst with atlapulgite, price is low, is easy to get, and cracking reaction is rapid, the productive rate height; Suitable In large-scale production;
3, make catalyst with atlapulgite, lytic effect is good, the product quality height. The vapour that cracking goes out, diesel oil All can reach state quality standard;
4, cracking process carries out under normal pressure, no hidden peril of explosion, production safety, reliable;
5, environmentally safe.
Claims (4)
1, a kind of technology of producing vapour, diesel oil with waste or used plastics, it is characterized in that: its production stage is:
1) waste or used plastics is clean, dry;
2) atlapulgite and waste or used plastics are added in the cracking still by 100: 1.5～2.5 proportioning;
3) the heating pyrolyze still carries out scission reaction, and Heating temperature is 230～400 ℃; The cracking vapour that scission reaction is obtained imports cyclonic separator earlier, and removing foreign matter and defective lysate obtain pure cracking vapour; Again pure cracking vapour is imported water cooler, be cooled to liquid lysate; Import in the receiving tank more at last;
4) lysate in the receiving tank is imported still kettle, fractionate out gasoline and diesel oil, be respectively charged into storage tank.
2, technology of producing vapour, diesel oil with waste or used plastics as claimed in claim 1 is characterized in that: described is to add atlapulgite earlier with in atlapulgite and the waste or used plastics adding cracking still, adds waste or used plastics again.
3, technology of producing vapour, diesel oil with waste or used plastics as claimed in claim 1 or 2 is characterized in that: the proportioning of described waste or used plastics and atlapulgite is 100: 2.0.
4, technology of producing vapour, diesel oil with waste or used plastics as claimed in claim 3 is characterized in that: the temperature of described heating pyrolyze still is 250～370 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00113717A CN1307084A (en) | 2000-01-21 | 2000-01-21 | Process for producing gasoline and diesel oil from waste plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00113717A CN1307084A (en) | 2000-01-21 | 2000-01-21 | Process for producing gasoline and diesel oil from waste plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1307084A true CN1307084A (en) | 2001-08-08 |
Family
ID=4583477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00113717A Pending CN1307084A (en) | 2000-01-21 | 2000-01-21 | Process for producing gasoline and diesel oil from waste plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1307084A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032961A (en) * | 2012-12-20 | 2013-04-10 | 北京航空航天大学 | Anti-slag high-temperature and high-pressure pure air heat storage type heating system |
| WO2023083887A1 (en) * | 2021-11-12 | 2023-05-19 | Borealis Ag | Conversion of plastic waste to hydrocarbons using a transition metal oxide |
-
2000
- 2000-01-21 CN CN00113717A patent/CN1307084A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032961A (en) * | 2012-12-20 | 2013-04-10 | 北京航空航天大学 | Anti-slag high-temperature and high-pressure pure air heat storage type heating system |
| CN103032961B (en) * | 2012-12-20 | 2015-07-15 | 北京航空航天大学 | Anti-slag high-temperature and high-pressure pure air heat storage type heating system |
| WO2023083887A1 (en) * | 2021-11-12 | 2023-05-19 | Borealis Ag | Conversion of plastic waste to hydrocarbons using a transition metal oxide |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |