CN1200075C - Method for making fuel oil by mixing-cracking waste plastics, waste oil and heavy oil - Google Patents
Method for making fuel oil by mixing-cracking waste plastics, waste oil and heavy oil Download PDFInfo
- Publication number
- CN1200075C CN1200075C CN 03118155 CN03118155A CN1200075C CN 1200075 C CN1200075 C CN 1200075C CN 03118155 CN03118155 CN 03118155 CN 03118155 A CN03118155 A CN 03118155A CN 1200075 C CN1200075 C CN 1200075C
- Authority
- CN
- China
- Prior art keywords
- oil
- waste
- heavy oil
- cracking
- mixed
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The present invention relates to a method for preparing fuel oil by mixing and cracking waste plastic, waste oil and heavy oil. The method comprises the steps that after the heavy oil and the waste oil are mixed according to the proportion of 0.5 to 1.5: 0.5 to 1.5, the mixture is used as oil raw materials; after plastic raw materials and the oil raw materials are mixed according to the proportion of 1 to 3: 1 to 3, the mixture is continuously added into a cracking reactor, a stirrer is started (the rotation speed is from 10 to 30 circles/min), the mixture starts to be heated, the temperature rise speed is controlled from 150 to 250 DEG C /h, the cracking temperature is from 370 to 450 DEG C, reaction cracked gas is collected and is modified by catalysts, the modified cracked gas is processed by a condenser to obtain liquid oil products and gas products, the liquid oil products are fractionated to obtain gasoline, diesel oil and heavy oil, the heavy oil returns to the reactor and is used as reaction raw materials, and the gas products are collected and stored. The present invention not only solves the utilization problem of the waste plastic, the heavy oil and the waste oil, but also solves the problems of large slag quantity and coke formation caused by the poor heat transfer property of the waste plastic in a cracking process of the waste plastic. The present invention has the advantages of oil yield increase of the gasoline and the diesel oil, quality improvement of the gasoline and the diesel oil, high productive efficiency and obvious economic benefit increase.
Description
Technical field: the present invention relates to a kind of method of utilizing the Waste recovery resource, be specifically related to utilize the heavy oil that produces in plastic waste, waste oil and the process of oil production to be mixed together the method that oil fuel is produced in cracking.
Background technology: plastic waste and waste oil all are pollutents common in the daily life, and through suitable processing, they can become valuable resource again.
For plastic waste, traditional treatment and disposal method has landfill, burning, regeneration, renewable resources, has technology such as plastics now with the degradable plastics replacement.Wherein utilizing plastic waste to produce liquid fuel is a kind of treatment process preferably, and this method comparatively is fit to China's national situation, both can handle white pollution, can obtain resource again.
Have the excessive and coking problem of the quantity of slag but utilize the direct cracking of plastic waste to produce fuel oil, plastic waste has three difficult problems in scission reaction, the poor thermal conductivity of plastics, and molten materials viscosity is big, is easy to sticking wall and produces carbon deposit, is difficult for solving.
The processing employing method usually of waste oil is to be used as fuel, regeneration, utilization again.Generally get base oil with sulfuric acid-carclazyte legal system at China's waste oil, this method produces a large amount of acid sludges simultaneously, causes secondary pollution easily.
Heavy oil generally is to produce higher lightweight oil of economic worth and chemical feedstocks with catalytic thermal cracking method, the burning that then directly acts as a fuel of some little factories.
At present, having occurred some both at home and abroad and utilized the technology of plastic waste and heavy oil mixed pyrolysis, generally is inorganic thermal barrier to be heated to rise to high temperature earlier in the combustion chamber, sends in the flute profile helical reactors with worm conveyor again.In the flute profile helical reactors that plastic waste is clamp-oned and sealed, simultaneously heavy oil is pumped into reactor, allow raw material and thermal barrier directly mix and take place to conduct heat and cracking reaction, decompose generation gas phase hydrocarbon and residue.The gas phase hydrocarbon generates small molecules gas phase hydrocarbon through fixed bed generation catalyzed reaction, and enters the separation column fractionation.The mixture that inorganic thermal barrier and cracked residue form is subjected to screw rod to promote to flow into vaporizer, enters separator box through worm conveyor.With gas blower high-temperature flue gas is sent into separator box, ceaselessly mixture is blown in the cyclonic separator, collect solid mixture, isolate gas.With worm conveyor above-mentioned solid mixture being sent into the combustion chamber burns.In the combustion chamber, the organism in the mixture is burned clean, and inorganic thermal barrier is heated to high temperature again, and falls in the channel reactor to the scission reaction heat supply.It is characterized in that raw material and thermal barrier directly mix generation and conduct heat and cracking reaction the continuous recurrent state of heating that thermal barrier is in heating all the time---heat release---.The shortcoming of heat and mass weak effect when though this method has solved the independent cracking of plastic waste to a certain extent, but still exist the problem of the big and easy coking of the quantity of slag.
Summary of the invention: thus technical problem to be solved by this invention is at existing poor thermal conductivity, mobile difference to be easy to generate the problem of a large amount of residues and coking in the cracking waste plastics process, the method of a kind of usefulness plastic waste and waste oil, heavy oil mixed pyrolysis is provided, to improve the heat transfer and the mass transfer condition of process, thereby effectively solve the problem of the big and coking of the quantity of slag, with improve production efficiency and product quality, improve economy and produce effects.
Technical solution of the present invention is as follows: a kind of plastic waste of using, waste oil and heavy oil mixed pyrolysis are produced the method for oil fuel, it is characterized in that: with heavy oil, waste oil by after 0.5～1.5: 0.5～1.5 the mixed as oily raw material, with plastic raw materials and oily raw material by adding in the cracking reactor continuously after 1～3: 1～3 the mixed, start agitator (rotating speed be 10～30 change/min), and begin to heat, the control heat-up rate is at 150～250 ℃/h, and control cracking temperature to 370～450 ℃, collect the reaction splitting gas and use the catalyzer upgrading, splitting gas behind upgrading obtains liquid oil and gaseous product through condenser, liquid oil obtains gasoline through fractionation again, diesel oil, heavy oil, as reaction raw materials, gaseous product is collected and is stored in the heavy oil Returning reactor.
Described plastic raw materials can be mixed waste plastic, by polyethylene (PE), polypropylene (PP), polystyrene (PS) by 0.5～1.5: 0.5～1.5: 0.5～1.5 mixed forms.
The oily liquids material that described waste oil is mixed by arbitrary proportion by waste vapour oil, waste diesel, useless base oil, described heavy oil mainly is meant the long-chain macromolecule amount high viscosity oil product that produces in the process of oil production.
Described catalyzer is HY, Ni-REY, HZSM-5, HC-1 molecular sieve catalyst, or modifying catalyst, SiO
2/ Al
2O
3In any.
Separately during cracking waste plastics,, be difficult to flow because plastic waste is solid-state.After the plastic waste fusion, because the character of plastic waste own also is difficult to effectively conduct heat and mass transfer.But when plastic waste, waste oil and heavy oil mixed pyrolysis, because waste oil and heavy oil itself all is in a liquid state, and heat transfer property is splendid, and waste oil and heavy oil are reactant, are again the materials of heat transfer.Thereby can improve the heat transfer efficiency of total system greatly.And after waste oil and the heavy oil adding, under effective stirring action, the vitreous clinker dilution that plastic waste can be formed is broken up, and is common mobile, thereby effectively improves the mass-transfer efficiency of system.
Therefore, the present invention compared with prior art, have the following advantages: the problem of utilizing that has not only solved plastic waste, heavy oil, waste oil, these environmental pollutant have been handled, also solve the big and coking problem of the quantity of slag that causes owing to plastic waste thermal conduction difference in the cracking waste plastics process, also improved the gasoline that the cracking waste plastics method produced and the oil yield of diesel oil simultaneously, improved the quality of gasoline and diesel oil, and the production efficiency raising, economic benefit also obviously improves.
Description of drawings:
Fig. 1 is the process flow sheet of the embodiment of the invention, and 1 is spiral conveyer among the figure; 2 is waste oil and heavy oil still preheater; 3 is the scission reaction still; 4 is cyclonic separator; 5,8 is water cooler; 6 is the catalytic reforming reaction tower; 7 is rectifying tower; 9 is compressor.
Fig. 2 is that scission reaction still structure reaches and spiral conveyer connection relationship sketch, and 31 is fixed-bed reactor among the figure; 32 is agitator; 33 is hydraclone; 1 is spiral conveyer;
Embodiment:
Embodiment 1:
With polyethylene, polypropylene, polystyrene by after 1: 1: 1 the mixed as plastic raw materials, waste oil, heavy oil were mixed the back as oily raw material by 1: 1.Plastic raw materials and the oily raw material mixed by 1: 1 is added in the cracking reactor continuously, start agitator (rotating speed be 20 change/min), and begin heating, the control heat-up rate is at 200 ℃/h, when cracking temperature reached 380 ℃, reaction product began cracking, had a large amount of colourless gas to emerge and (was C
1-C
4Gaseous hydrocarbons), the control cracking temperature is between 370 ℃～390 ℃.Collect the reaction splitting gas, it is sent into condensing works carry out condensation, condensed splitting gas is sent into catalysis transformation of the way device (the HC-1 molecular sieve catalyst is housed) and is carried out catalytic reforming, enters condenser condenses again after the catalysis transformation of the way, obtains liquid oil and gaseous product after the condensation.Liquid oil is sent into rectifier unit again and is carried out fractionation, obtains products such as gasoline, diesel oil, heavy oil after the fractionation, weighs, and calculates its productive rate.Heavy oil returns in the cracking reactor as reaction raw materials, and gaseous product is introduced in the airbag and stored.The residue that coking produces in the reaction process is stayed in the cracking reactor, weighs, and obtains the residue productive rate.By the gas chromatography-mass spectrometry analysis instrument gasoline quality is analyzed, obtained the distribution situation of each hydrocarbon polymer.
Adopt oil and plastics mixed pyrolysis and the independent cracking of plastics, relatively the difference of reaction product.When table 1 is 380 ℃ of cracking, 320 ℃ of catalytic reformings, the contrast of independent cracking of oil and plastics and resulting each product yield of the two mixed pyrolysis (blending ratio is 1: 1).It (mainly is C that the waste oil cracking produces a large amount of noncondensable gases
1～C
4Compound), the yield of the independent cracked product liquid of plastics is higher, reaches 87.88%; Oil cracked liquid yield separately is 75.64%; And the yield of the product liquid of mixed pyrolysis is 90.6%.Can also see that from table 2 the remaining at last level of residue of mixed pyrolysis lacks than the plastic hot cracked, that is to say that mixed pyrolysis helps reducing coking.This shows that mixed pyrolysis not only can utilize waste oil and heavy oil fully, but also can obtain more useful matteies (gasoline and diesel oil), reduce coking.
The difference of table 1 mixed pyrolysis and thermo-cracking
Feed liquid productive rate % gasoline fraction % diesel oil distillate % heavy oil fraction % splitting gas % residue %
Waste oil 75.64 14.37 35.38 25.89 23.34 1.02
Plastic waste 87.88 31.78 44.79 11.31 7.39 4.73
Plastic waste+waste oil 84.46 30.34 39.36 14.76 12.56 2.98
Plastic waste+heavy oil 83.29 27.59 39.15 16.55 13.58 3.13
Plastic waste+heavy oil+waste oil 90.60 32.05 45.05 13.50 8.05 1.35
The two gasoline product is obtained each component concentration through the analysis of gas chromatography-mass spectrum logotype instrument, see Table 2.Light component (C6-C9) is many in each component of the gasoline of mixed pyrolysis; And heavy component (C9-C12) is more in the independent cracking of plastics.
The result of each component relatively in the independent cracking gained of table 2 mixed pyrolysis and the plastics gasoline
In the gasoline mixed pyrolysis in the independent cracking of plastics in the gasoline mixed pyrolysis in the independent cracking of plastics
Each component concentration of each component concentration/% of component/each component concentration/% of each component concentration/% of % component
C
4～C
5 5.87 3.95 C
9 31.36 34.09
C
6 21.43 13.22 C
10～C
11?1.84 11.37
C
7 19.89 9.36 C
12 5.45 13.28
C
8 12.49 11.57 C
13～C
15?1.67 3.16
The gasoline octane rating that can be calculated mixed pyrolysis by this table is 91.38, and the cracked gasoline octane rating is 84.28 separately.Gasoline quality be improved significantly.
Embodiment 2:
The demonstration project of actual plastic waste, heavy oil, waste oil mixed pyrolysis prepare liquid fuel is undertaken by technical process shown in Figure 1.This covering device per hour can be handled 1 ton of plastic waste.
Plastic waste is handled through dust shaker, removes soil, stone, metal.Mixed waste plastic after the processing contains polyethylene, polypropylene, polystyrene and a small amount of other materials, polyethylene, polypropylene, polystyrene are pressed 1.1: 1.3: 0.8 mixed after in the spiral conveyer 1 adding scission reaction still 3, to join waste oil and heavy oil still preheater 2 by the waste oil and the heavy oil of 0.8: 1.2 mixed simultaneously, and be that 1.3: 0.9 ratio joins in the scission reaction still 3 and mixes in plastic waste raw material and oily raw material.The agitator 32 of scission reaction still 3 moves with 20 rev/mins speed, and begins heating, and the control heat-up rate is at 210 ℃/h, and when cracking temperature reached 380 ℃, reaction product began cracking, has a large amount of colourless gas to emerge and (is C
1-C
4Gaseous hydrocarbons), the control cracking temperature is between 375 ℃～395 ℃.Plastic waste obtains sufficient cracking (referring to Fig. 2) in the fixed-bed reactor 31 of reactor 3.All splitting gases enter cyclonic separator 4 from output tube and carry out the dedusting separation, and wherein heavy constituent and dust turn back in the scission reaction still 3.Petrol and diesel oil steam enters catalysis transformation of the way reaction tower 6 (the HC-1 molecular sieve catalyst is housed in the catalytic tower) and carries out the catalysis reorganization after water cooler 5 coolings, make it isomerization, ring structureization and aromizing.Enter rectifying tower 7 then, make with extra care fractionation, the oil gas after the rectifying enters condenser 8 and enters middle cylinder store behind condensation liquefaction, and remaining noncondensable gas is sent into steam chest by blower fan, and compressed machine 9 compression backs provide burning vapour for waste oil and heavy oil preheating.The petrol and diesel oil of middle cylinder is pressed into the finished product storage tank after refining kettle filters, heavy oil circulates as raw material, reenters in waste oil and the heavy oil still preheater 2, enters scission reaction still 3 and react again after preheating.Carbon black after the cracking, dust are drawn off by the skim gate 33 of scission reaction still 3.
Among this embodiment, the waste leftover material of plastic waste after from plastic waste woven bag, useless food bag, useless wrapping material, industrial production, composition is PE, PP and PS.The plastic waste consumption is 500kg/h, and waste oil and heavy oil consumption are 500kg/h, and modifying catalyst HC-1 consumption is 100kg, 320 ℃ of catalytic reforming temperature.This covering device has been realized continuously feeding and has been slagged tap continuously.
The gasoline of producing with this covering device and catalyzer and the leading indicator of diesel oil meet China national motor spirit standard (GB484-93) and derv fuel oil standard (GB252-93) fully, not only have huge environmental benefit and social benefit, and also have extraordinary direct economic benefit.
Claims (3)
1. one kind is utilized plastic waste, waste oil and heavy oil mixed pyrolysis are produced the method for oil fuel, it is characterized in that: with heavy oil, waste oil is as oily raw material by weight after 0.5～1.5: 0.5～1.5 the mixed, be to add in the cracking reactor continuously after 1～3: 1～3 the mixed by weight with plastic raw materials and oily raw material, rotating speed with 10～30rpm starts agitator and begins heating, the control heat-up rate is at 150～250 ℃/h, and control cracking temperature to 370～450 ℃, collect the reaction splitting gas and use the catalyzer upgrading, splitting gas behind upgrading obtains liquid oil and gaseous product through condenser, liquid oil obtains gasoline through fractionation again, diesel oil, heavy oil, as reaction raw materials, gaseous product is collected and is stored in the heavy oil Returning reactor; Described plastic raw materials is a mixed waste plastic, and be 0.5～1.5: 0.5～1.5 by weight by polyethylene, polypropylene, polystyrene: 0.5～1.5 mixed forms.
2. the method for utilizing plastic waste, waste oil and heavy oil mixed pyrolysis to produce oil fuel according to claim 1, it is characterized in that: the oily liquids material that described waste oil is mixed by arbitrary proportion by waste vapour oil, waste diesel, useless base oil, described heavy oil is the long-chain macromolecule amount high viscosity oil product that produces in the process of oil production.
3. the method for utilizing plastic waste, waste oil and heavy oil mixed pyrolysis to produce oil fuel according to claim 1 and 2 is characterized in that: described catalyzer is HY, Ni-REY, HZSM-5, HC-1 molecular sieve catalyst, or modifying catalyst SiO
2/ Al
2O
3In any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118155 CN1200075C (en) | 2003-03-10 | 2003-03-10 | Method for making fuel oil by mixing-cracking waste plastics, waste oil and heavy oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118155 CN1200075C (en) | 2003-03-10 | 2003-03-10 | Method for making fuel oil by mixing-cracking waste plastics, waste oil and heavy oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1434100A CN1434100A (en) | 2003-08-06 |
| CN1200075C true CN1200075C (en) | 2005-05-04 |
Family
ID=27634390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03118155 Expired - Fee Related CN1200075C (en) | 2003-03-10 | 2003-03-10 | Method for making fuel oil by mixing-cracking waste plastics, waste oil and heavy oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1200075C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602955B (en) * | 2008-06-11 | 2013-07-17 | 窦洪波 | Production process of waste organic matter for regeneration of gasoline and diesel oil |
| CN101508619B (en) * | 2009-03-12 | 2013-03-27 | 浙江大学 | Method for preparing hydrocarbon with catalysis copyrolysis of biomass and polymer |
| CN102041057A (en) * | 2011-01-25 | 2011-05-04 | 吉海军 | Process for extracting diesel oil from waste mineral oil |
| CN103509597B (en) * | 2013-07-17 | 2017-04-26 | 上海顶丰能源科技有限公司 | Recycling processing method and processing system for waste oil |
| CN104611060B (en) * | 2013-11-05 | 2016-08-17 | 中国石油化工股份有限公司 | A kind of method that waste plastics and Gao Fang component produce clean fuel oil |
| CN104525243A (en) * | 2014-12-10 | 2015-04-22 | 郭帅 | Novel efficient environment-friendly catalyst for regenerating oil from waste plastic |
| CN104862000A (en) * | 2015-05-21 | 2015-08-26 | 张敬伟 | Waste material processing method |
| CN106554828B (en) * | 2015-09-24 | 2021-03-05 | 中国石油化工股份有限公司 | Heavy fuel oil composition and preparation method thereof |
| CN108277040B (en) * | 2018-04-18 | 2023-12-22 | 青岛科技大学 | Device for automatically grading pyrolysis oil components in high molecular compound pyrolysis process |
| CN111750358B (en) * | 2020-05-29 | 2021-09-10 | 浙江科茂环境科技有限公司 | Waste plastic green oiling technology embedded garbage incineration method |
| CN113088263B (en) * | 2021-03-25 | 2022-07-05 | 渤瑞环保股份有限公司 | Method for preparing heat-conducting preform by blending industrial byproduct oil and waste plastic and application |
| CN114591755B (en) * | 2022-03-24 | 2023-10-31 | 湖州师范学院 | Method for preparing oil by polyethylene waste plastics through in-situ low-temperature hydrogen-free liquefaction |
| CN115305103A (en) * | 2022-06-30 | 2022-11-08 | 胡进 | Reaction device for enhancing apparent heat transfer coefficient in organic solid waste thermal cracking process |
-
2003
- 2003-03-10 CN CN 03118155 patent/CN1200075C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1434100A (en) | 2003-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1200075C (en) | Method for making fuel oil by mixing-cracking waste plastics, waste oil and heavy oil | |
| KR100202089B1 (en) | Process of producing gasoline, diesel and carbon black with waste rubbers and/or waste plastics | |
| CN1247743C (en) | Method and system for continuously preparing gasoline kerosene and diesel oil from waste plastics | |
| CN1397627A (en) | Process and equipment for preparing gasoline and diesel oil from waste plastics and/or heavy oil | |
| CN107746722A (en) | The method and apparatus that a kind of cracking waste plastics prepare gasoline and diesel oil | |
| CN1942557A (en) | Process and plant for conversion of waste material to liquidfuel | |
| Kaminsky | Possibilities and limits of pyrolysis | |
| CN1150968A (en) | Method and equipment for treat waste plastic hydrocarbon | |
| CN102585896A (en) | Automatic continuous production process for producing diesel oil with waste oil through catalytic cracking method | |
| CN102517062B (en) | Method for preparing hydrocarbon type oil and hydrochloric acid through pyrolytic-catalytic plastic and device | |
| CN202610189U (en) | Automatic continuous production equipment for regenerated diesel oil from waste oil through catalytic cracking | |
| EP3311969A1 (en) | Device for thermally decomposing polyethylene and polypropylene waste | |
| CN1074454C (en) | Process and apparatus for treatment of waste oils | |
| CN101781575B (en) | Method for preparing high-cleanness fuel oil from intermediate-temperature and low-temperature coal tar | |
| CN1246510A (en) | Process and equipment for producing gasoline and diesel oil with waste plastics and/or heavy oil | |
| CN1059541A (en) | The method of conversion of carbonaceous feedstocks to particulate capbon and methyl alcohol | |
| CN1117517A (en) | Method and equipment for catalytic cracking waste rubber | |
| EP2834323A1 (en) | System and method for converting plastic/rubber to hydrocarbon fuel by thermo-catalytic process | |
| CN1054392C (en) | Method of coal liquefaction | |
| CN101260309A (en) | Continuous catalysis cracking method for producing fuel oil from mixed waste plastic | |
| CN202359074U (en) | Device for producing hydrocarbon-type oil and hydrochloric acid by pyrolyzing-catalyzing plastics | |
| EP1632546A1 (en) | Method for recycling rubber-containing wastes | |
| EP3312223B1 (en) | Method for thermally decomposing polyethylene and polypropylene waste | |
| WO2005028593A1 (en) | A inductrialized process and a device for production of gasoline, diesel oil from waste plastics | |
| Agus et al. | Small-scale production of biodiesel through transesterification process of waste or used cooking 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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |