CN1126237A - Method for prodn. of fuel oil from waste plastics - Google Patents
Method for prodn. of fuel oil from waste plastics Download PDFInfo
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- CN1126237A CN1126237A CN 94117543 CN94117543A CN1126237A CN 1126237 A CN1126237 A CN 1126237A CN 94117543 CN94117543 CN 94117543 CN 94117543 A CN94117543 A CN 94117543A CN 1126237 A CN1126237 A CN 1126237A
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- pyrocrack furnace
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Abstract
The method for producing fuel oil such as gasoline or diesel oil from waste plastics features use of thermal cracker, catalytic cracker and fractionating tower for thermal cracking (180-500 deg.C), catalytic cracking (180-480 deg.C) and rectification, and use of Al2O3 and SiO2 molecular sieves as catalysts. Its advantages are quick oil production high conversion and low cost.
Description
The present invention relates to the renewable energy resources, particularly a kind of method of utilizing waste or used plastics to produce oil fuel.
Plastic waste, as useless woven bag, useless plastic sheeting for farm use, useless food bag, depleted plastic tank, beverages can etc., not easy to be recycled.Emit a large amount of obnoxious flavoures when handling, cause environmental pollution, the harm health of human body with combustion method.At present, begun to utilize waste or used plastics to produce vapour, diesel oil both at home and abroad.But productive rate is lower, the laboratory oil yield rate mostly about 75%, in the industrialization actual production, oil product transformation efficiency only about 50%, and accessory substance is many, the dedusting difficulty is big, air inversion is dangerous.Go out particularly that speed oil is slow, power consumption is big, catalyst system therefor is expensive, the wayward grasp of production technique, scale is big more, and the oil product transformation efficiency is low more.Method as disclosed a kind of waste or used plastics interpolation crude oil or used oil production vapour, diesel oil among the CN1078973A " method of waste or used plastics system vapour, diesel oil ", be that waste or used plastics and crude oil or used oil are added cracking in the cracking furnace with certain proportion, make gasoline and diesel oil through catalyzed reaction, condensation cooling, rectifying again.Conversion rate of products is low, thermo-efficiency is low, the problem of complex process though solved to a certain extent, but still has defective, and especially conversion rate of products is still not ideal enough, and needs to add former wet goods oil product.And CN1084546A " waste plastic is changed into the method and apparatus of oil fuel " in disclosed two kinds of methods that waste plastic changed into oil fuel, can under normal pressure and lower several temperature gradient, carry out, wherein thermally splitting method, transformation efficiency is 60-70%, and catalytic cracking method is made catalyzer with pure aluminium silicate, turnover ratio also has only 70-80%, all not too high, and equipment used is more, and operation is difficult for.
The purpose of this invention is to provide a kind of safe and reliablely, be easy to control, pollution-free, the oil product transformation efficiency is high utilizes waste or used plastics to produce the method for oil fuel.
Task of the present invention realizes by following steps: plastic waste is placed in the gas pyrocrack furnace, and Control for Kiln Temperature is sent into water vapor in the gas pyrocrack furnace at 180-500 ℃ simultaneously; The paraffin steam and the oil fuel mixed steam that generate in the gas pyrocrack furnace are introduced catalytic cracker, 180-480 ℃ of furnace temperature, Al in stove
2O
3The further cracking of molecular sieve is reformed; Fuel oil vapour after fully cracking is reformed in the catalytic cracker is introduced rectifying tower distill out gasoline and diesel oil.
When among the present invention plastic waste being placed in the gas pyrocrack furnace cracking, be water vapor to be sent in the gas pyrocrack furnace by the vapour pipe that stretches into gas pyrocrack furnace bottom, also communicate with above-mentioned vapour pipe and stopping to make water vapor at gas pyrocrack furnace internal recycle under the situation that vapour pipe send vapour with the tracheae of control valve by drawing from gas pyrocrack furnace top.The best furnace temperature of gas pyrocrack furnace is 320-360 ℃.Catalyzer used in the catalytic cracker removes Al
2O
3Also can add SiO outward
2Molecular sieve.Fuel oil vapour after fully cracking is reformed in the catalytic cracker is as containing than juicy, also can be through over-heat-exchanger and water-and-oil separator to remove moisture before introducing rectifying tower.The used raw material of production method of the present invention is the useless woven bag done of polyethylene, polypropylene, polystyrene, useless plastic sheeting for farm use, useless food bag, plastic tank, beverages can etc.As use the polyvinyl chloride plastic waste, can reduce transformation efficiency.
Use the present invention to produce the oil fuel transformation efficiency up to 91-98%.Present method is easy to operate, and it is low to consume energy, and it is fast to go out speed oil, and the oil product label is stable, and gasoline label reaches 70#-120#, and quality meets standard GB 252-87 standards, and diesel number reaches-10#-35#, and quality meets standard GB 484-89 standards.
Embodiment further specifies the present invention below in conjunction with accompanying drawing:
Fig. 1 is a process flow sheet of the present invention.
Embodiment 1:
As shown in Figure 1, be that water vapor is fed in the stoves through several vapour pipes 7 that stretch into gas pyrocrack furnace 1 bottom by water vapor import 6 simultaneously in 320-360 ℃ the gas pyrocrack furnace 1 with adding furnace temperature by opening for feed 2 after the waste or used plastics fragmentation, each vapour pipe 7 has balanced loop 3.With the amount of air intake valve 5 control feeding water vapors, keep normal pressure or low pressure to guarantee furnace pressure, when furnace pressure is higher, then close air intake valve 5, open return valve 4, make water vapor at the stove internal recycle.
Plastic waste melts, degrades, generates paraffin steam and fuel oil mixed steam in gas pyrocrack furnace 1, carrying a small amount of water vapor secretly, to send into furnace temperature through the steam outlet 8 on gas pyrocrack furnace 1 top be that 320-360 ℃, furnace pressure are catalytic cracker 11 bottoms of normal pressure or low pressure, and a small amount of molten residue is discharged by the slag notch 9 of stove bottom in the gas pyrocrack furnace 1.Be filled with Al in the catalytic cracker 11
2O
3Molecular sieve and SiO
2The catalyst layer 10 that molecular sieve constitutes, mixed steam is by catalyst layer 10, further cracking is delivered to heat exchanger 13 by the outlet 12 of catalytic cracker 11 furnace roofs after reforming, after two heat exchanger 13 condensations coolings, deliver to separator 14, contained humidity is discharged by separator 14 outlet at bottoms 15, main component is that the oil fuel mixture of gasoline, diesel oil is simultaneously as the heat-eliminating medium heat exchanger 13 of flowing through, send into rectifying tower 16 rectifying, distill out gasoline by rectifying tower 16 tower top outlets 17, tower bottom outlet 18 obtains diesel oil.
Embodiment 2:
Gas pyrocrack furnace Control for Kiln Temperature is at 180-220 ℃, and the catalytic cracker Control for Kiln Temperature is at 440-480 ℃, and other is with described in the embodiment 1.
Embodiment 3:
Gas pyrocrack furnace Control for Kiln Temperature is at 460-500 ℃, and the catalytic cracker Control for Kiln Temperature is at 180-220 ℃, and other is with described in the embodiment 1.
Embodiment 4:
The catalytic cracker catalyst system therefor only is Al
2O
3Molecular sieve, other is with described in the embodiment 1.
Embodiment 5:
It is in 320-360 ℃ the gas pyrocrack furnace 1 that raw material is added furnace temperature by opening for feed 2, with a vapour pipe 7 that stretches into gas pyrocrack furnace 1 bottom water vapor is fed in the stove simultaneously, and this vapour pipe 7 has balanced loop 3.With the amount of air intake valve 5 control feeding water vapors, keep normal pressure or low pressure to guarantee furnace pressure, when being higher than this pressure, then close air intake valve 5, open return valve 4, make water vapor at the stove internal recycle.The paraffin steam and the fuel oil mixed steam that generate, sending into furnace temperature through the discharge port 8 on stove top is that raffinate is discharged by the slag notch 9 of stove bottom in 320-360 ℃ the catalytic cracker 11.Be filled with catalyst A l in the catalytic cracker 11
2O
3Molecular sieve and SiO
2Molecular sieve, mixed steam are by catalyst layer 10, and further cracking is directly delivered to rectifying tower 16 rectifying by the outlet 12 of furnace roof after reforming, and promptly gets product.
Claims (5)
1, a kind of method of utilizing production of fuel from waste plastics oil is characterized in that:
A, plastic waste is placed in the gas pyrocrack furnace, 180-500 ℃ of furnace temperature are sent into water vapor in the gas pyrocrack furnace simultaneously,
B, the paraffin steam and the fuel oil mixed steam that generate in the gas pyrocrack furnace are introduced catalytic cracker, 180-480 ℃ of furnace temperature, Al in stove
2O
3The further cracking of molecular sieve is reformed,
C, the fuel oil vapour after fully cracking is reformed in the catalytic cracker is introduced rectifying tower distill out gasoline and diesel oil.
2, the method for utilizing production of fuel from waste plastics oil according to claim 1, it is characterized in that said when plastic waste is placed in the gas pyrocrack furnace cracking, be water vapor to be sent in the gas pyrocrack furnace by the vapour pipe that stretches into gas pyrocrack furnace bottom, also communicate with above-mentioned vapour pipe and stopping to make water vapor at gas pyrocrack furnace internal recycle under the situation that vapour pipe send vapour with the tracheae of control valve by drawing from gas pyrocrack furnace top.
3, the method for utilizing production of fuel from waste plastics oil according to claim 1 and 2 is characterized in that used catalyzer also can be added with SiO in the said catalytic cracker
2Molecular sieve.
4, the method for utilizing production of fuel from waste plastics oil according to claim 1 and 2 is characterized in that the furnace temperature of said gas pyrocrack furnace is 320-360 ℃.
5, the method for utilizing production of fuel from waste plastics oil according to claim 1 and 2, it is characterized in that fuel oil vapour after fully cracking is reformed in the said catalytic cracker before introducing rectifying tower also through over-heat-exchanger and water-and-oil separator to remove moisture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94117543 CN1126237A (en) | 1994-10-27 | 1994-10-27 | Method for prodn. of fuel oil from waste plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94117543 CN1126237A (en) | 1994-10-27 | 1994-10-27 | Method for prodn. of fuel oil from waste plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1126237A true CN1126237A (en) | 1996-07-10 |
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ID=5038424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94117543 Pending CN1126237A (en) | 1994-10-27 | 1994-10-27 | Method for prodn. of fuel oil from waste plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1126237A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002057391A1 (en) * | 2001-01-22 | 2002-07-25 | Chen, Yanping | Method and system of converting waste plastics into hydrocarbon oil |
| WO2005087897A1 (en) * | 2004-03-14 | 2005-09-22 | Ozmotech Pty Ltd | Process and plant for conversion of waste material to liquid fuel |
| CN100343367C (en) * | 2004-12-03 | 2007-10-17 | 温彦良 | Method and device for producing fuel oil by using waste plastic |
| CN102786980A (en) * | 2012-08-01 | 2012-11-21 | 山东汇科通用机械有限公司 | Waste plastic oil refining production method and production line thereof |
| CN101812320B (en) * | 2009-08-14 | 2013-02-06 | 李宝东 | Waste oil regenerated energy device and processing method |
| CN108504372A (en) * | 2018-04-04 | 2018-09-07 | 陈永进 | Gangue and waste plastics copyrolysis method |
-
1994
- 1994-10-27 CN CN 94117543 patent/CN1126237A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002057391A1 (en) * | 2001-01-22 | 2002-07-25 | Chen, Yanping | Method and system of converting waste plastics into hydrocarbon oil |
| US6774271B2 (en) | 2001-01-22 | 2004-08-10 | Tianfu Jiang | Method and system of converting waste plastics into hydrocarbon oil |
| WO2005087897A1 (en) * | 2004-03-14 | 2005-09-22 | Ozmotech Pty Ltd | Process and plant for conversion of waste material to liquid fuel |
| CN100343367C (en) * | 2004-12-03 | 2007-10-17 | 温彦良 | Method and device for producing fuel oil by using waste plastic |
| CN101812320B (en) * | 2009-08-14 | 2013-02-06 | 李宝东 | Waste oil regenerated energy device and processing method |
| CN102786980A (en) * | 2012-08-01 | 2012-11-21 | 山东汇科通用机械有限公司 | Waste plastic oil refining production method and production line thereof |
| WO2014019332A1 (en) * | 2012-08-01 | 2014-02-06 | 山东汇科通用机械有限公司 | Method for producing refined oil with waste plastic and production line thereof |
| CN102786980B (en) * | 2012-08-01 | 2015-09-23 | 山东汇科通用机械有限公司 | A kind of waste plastic oil-refining production method and production line thereof |
| CN108504372A (en) * | 2018-04-04 | 2018-09-07 | 陈永进 | Gangue and waste plastics copyrolysis method |
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| WD01 | Invention patent application deemed withdrawn after publication |