CN105349170A - Method for catalytic cracking of waste tires - Google Patents
Method for catalytic cracking of waste tires Download PDFInfo
- Publication number
- CN105349170A CN105349170A CN201510879528.5A CN201510879528A CN105349170A CN 105349170 A CN105349170 A CN 105349170A CN 201510879528 A CN201510879528 A CN 201510879528A CN 105349170 A CN105349170 A CN 105349170A
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- CN
- China
- Prior art keywords
- junked tire
- hydroxyapatite
- waste tires
- catalytic pyrolysis
- catalytic cracking
- 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.)
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Abstract
The invention discloses a method for catalytic cracking of waste tires, and belongs to the field of chemical industries. The method comprises the following steps: adding 0.5-3wt% of nickel ion-loaded hydroxyapatite to the pulverized waste tires, uniformly mixing, and performing catalytic cracking at 200-320 DEG C with the reaction time of 3-25 minutes; separating a product generated after the reaction to obtain high-temperature oil gas, carbon black and a steel wire, wherein the ratio of calcium to phosphorus in hydroxyapatite is 1.05:1.51, and the loading amount of nickel is 0.06-2wt%. The invention provides a novel catalyst for catalytic cracking of the waste tires, and the novel catalyst provides a new way for reuse of the waste tires. According to the method for catalytic cracking of the waste tires by adopting nickel ion-loaded hydroxyapatite as the catalyst, the cracking efficiency is high; as the temperature is relatively low, the reaction time is short and energy conservation is realized.
Description
Technical field
The present invention relates to chemical field, particularly a kind of method of catalytic pyrolysis junked tire.
Background technology
Along with the development of automobile industry etc., the amount of junked tire increases day by day.If do not processed, then pollute the environment, take up space.Catalytic pyrolysis is utilized to carry out resource reclaim significant.
Pulverized by junked tire in prior art, then catalytic pyrolysis, obtains oil gas, carbon black and steel wire respectively.And conventional catalyst for cracking is sodium carbonate.All the time, the catalyzer of junked tire pyrolysis has no renewal, finds the recycling industry of a kind of new catalyzer to junked tire significant.
Summary of the invention
In order to make up the deficiencies in the prior art, the invention provides the method for the lower catalytic pyrolysis junked tire of a kind of cracking temperature.The present invention adopts load to have the hydroxyapatite of nickel ion as catalyst for cracking, and catalytic efficiency is high, and temperature of reaction is low, is a kind of energy-efficient cleavage method.
Technical scheme of the present invention is:
A method for catalytic pyrolysis junked tire, the load adding 0.5-3wt% in the junked tire after pulverization process has the hydroxyapatite of nickel ion, mixes, and then at 200-320 DEG C, carries out catalytic pyrolysis, and the reaction times is 3-25 minute; The product that reaction generates is isolated to high-temperature oil gas, carbon black and steel wire; The ratio of calcium and phosphorus of described hydroxyapatite is 1.05-1.51, and the charge capacity of nickel is 0.06-2wt%.
Preferably, reaction pressure is normal pressure or tiny structure.When reaction pressure is normal pressure, require low to reaction vessel, but cracking degree is slightly worse than tiny structure; And adopt tiny structure higher to reaction vessel requirement, but cracking is very abundant.
Preferably, the ratio of calcium and phosphorus of described hydroxyapatite is 1.33-1.47.The ratio of calcium and phosphorus of hydroxyapatite, within the scope of this, shows the highest catalytic activity.
Further, the load adding 0.5-1.5wt% in the junked tire after pulverization process has the hydroxyapatite of nickel ion.
Preferably, the charge capacity of nickel is 0.2-0.8wt%.
Beneficial effect of the present invention is:
The invention provides a kind of raw catalyst of catalytic pyrolysis junked tire, the recycling for junked tire provides a new way.Adopt load to have the hydroxyapatite of nickel ion as catalyst cracking junked tire, lysis efficiency is high and answer temperature relatively low, and the reaction times is short, save energy.
Embodiment
Embodiment 1
A method for catalytic pyrolysis junked tire, smashes 100kg junked tire, smashes in the junked tire after process to add 1.0kg load and have the hydroxyapatite of nickel ion (charge capacity of nickel is 0.5wt%), mixes; Then 290 DEG C, carry out catalytic pyrolysis under normal pressure, the reaction times is 20 minutes; The product that reaction generates is isolated to 30.7kg high-temperature oil gas, 46.3kg carbon black and 15.2kg steel wire; Wherein, load has the ratio of calcium and phosphorus of the hydroxyapatite of nickel ion to be 1.41; As oil fuel after the high-temperature oil gas condensation obtained; Cleavage rate is 92.2%.
Embodiment 2
A method for catalytic pyrolysis junked tire, smashes 100kg junked tire, smashes in the junked tire after process to add 1.0kg load and have the hydroxyapatite of nickel ion (charge capacity of nickel is 0.5wt%), mixes; Then 290 DEG C, carry out catalytic pyrolysis under 1kPa tiny structure, the reaction times is 20 minutes; The product that reaction generates is isolated to 31.7kg high-temperature oil gas, 47.3kg carbon black and 15.8kg steel wire; Wherein, load has the ratio of calcium and phosphorus of the hydroxyapatite of nickel ion to be 1.41; As oil fuel after the high-temperature oil gas condensation obtained; Cleavage rate is 94.8%.
Embodiment 3
A method for catalytic pyrolysis junked tire, smashes 100kg junked tire, smashes in the junked tire after process to add 0.8kg load and have the hydroxyapatite of nickel ion (charge capacity of nickel is 0.8wt%), mixes; Then 300 DEG C, carry out catalytic pyrolysis under normal pressure, the reaction times is 25 minutes; The product that reaction generates is isolated to 30.3kg high-temperature oil gas, 46.9kg carbon black and 14.6kg steel wire; Wherein, load has the ratio of calcium and phosphorus of the hydroxyapatite of nickel ion to be 1.27; As oil fuel after the high-temperature oil gas condensation obtained; Cleavage rate is 91.8%.
Embodiment 4
A method for catalytic pyrolysis junked tire, smashes 100kg junked tire, smashes in the junked tire after process to add 2kg load and have the hydroxyapatite of nickel ion (charge capacity of nickel is 1wt%), mixes; Then 320 DEG C, carry out catalytic pyrolysis under normal pressure, the reaction times is 23 minutes; The product that reaction generates is isolated to 30.9kg high-temperature oil gas, 46.6kg carbon black and 15.5kg steel wire; Wherein, load has the ratio of calcium and phosphorus of the hydroxyapatite of nickel ion to be 1.51; As oil fuel after the high-temperature oil gas condensation obtained; Cleavage rate is 93%.
Comparative example 1
A method for catalytic pyrolysis junked tire, smashes 100kg junked tire, smashes in the junked tire after process and adds 1.2kg sodium carbonate, mix; Then 420 DEG C, carry out catalytic pyrolysis under normal pressure, the reaction times is 100 minutes; The product that reaction generates is isolated to 22.5kg high-temperature oil gas, 33.8kg carbon black and 11.2kg steel wire; Cleavage rate is 67.5%.
Claims (5)
1. the method for a catalytic pyrolysis junked tire, it is characterized in that: the load adding 0.5-3wt% in the junked tire after pulverization process has the hydroxyapatite of nickel ion, mix, then at 200-320 DEG C, carry out catalytic pyrolysis, the reaction times is 3-25 minute; The product that reaction generates is isolated to high-temperature oil gas, carbon black and steel wire; The ratio of calcium and phosphorus of described hydroxyapatite is 1.05-1.51, and the charge capacity of nickel is 0.06-2wt%.
2. the method for catalytic pyrolysis junked tire as claimed in claim 1, is characterized in that: reaction pressure is normal pressure or tiny structure.
3. the method for catalytic pyrolysis junked tire as claimed in claim 1, is characterized in that: the ratio of calcium and phosphorus of described hydroxyapatite is 1.33-1.47.
4. the method for catalytic pyrolysis junked tire as claimed in claim 3, is characterized in that: the load adding 0.5-1.5wt% in the junked tire after pulverization process has the hydroxyapatite of nickel ion.
5. the method for catalytic pyrolysis junked tire as claimed in claim 1, is characterized in that: the charge capacity of nickel is 0.2-0.8wt%.
Priority Applications (1)
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CN201510879528.5A CN105349170A (en) | 2015-12-05 | 2015-12-05 | Method for catalytic cracking of waste tires |
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CN201510879528.5A CN105349170A (en) | 2015-12-05 | 2015-12-05 | Method for catalytic cracking of waste tires |
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CN105349170A true CN105349170A (en) | 2016-02-24 |
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CN201510879528.5A Pending CN105349170A (en) | 2015-12-05 | 2015-12-05 | Method for catalytic cracking of waste tires |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106350092A (en) * | 2016-10-10 | 2017-01-25 | 格林美(武汉)城市矿产循环产业园开发有限公司 | Method for catalyzing and thermally cracking automobile waste tires at low temperature into gas and oil |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1117517A (en) * | 1994-08-24 | 1996-02-28 | 中国长江动力公司(集团) | Method and equipment for catalytic cracking waste rubber |
CN101932384A (en) * | 2008-01-25 | 2010-12-29 | 道达尔石油化学产品研究弗吕公司 | Process for obtaining catalyst composites comprising meapo and their use in conversion of organics to olefins |
-
2015
- 2015-12-05 CN CN201510879528.5A patent/CN105349170A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1117517A (en) * | 1994-08-24 | 1996-02-28 | 中国长江动力公司(集团) | Method and equipment for catalytic cracking waste rubber |
CN101932384A (en) * | 2008-01-25 | 2010-12-29 | 道达尔石油化学产品研究弗吕公司 | Process for obtaining catalyst composites comprising meapo and their use in conversion of organics to olefins |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106350092A (en) * | 2016-10-10 | 2017-01-25 | 格林美(武汉)城市矿产循环产业园开发有限公司 | Method for catalyzing and thermally cracking automobile waste tires at low temperature into gas and oil |
CN106350092B (en) * | 2016-10-10 | 2018-05-11 | 格林美(武汉)城市矿产循环产业园开发有限公司 | The method of the low-temperature catalyzed thermal cracking made fuel oil of automobile damaged tire and carbon black |
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Application publication date: 20160224 |
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