CN105567280A - Catalytic cracking method for waste tires - Google Patents

Catalytic cracking method for waste tires Download PDF

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Publication number
CN105567280A
CN105567280A CN201510879466.8A CN201510879466A CN105567280A CN 105567280 A CN105567280 A CN 105567280A CN 201510879466 A CN201510879466 A CN 201510879466A CN 105567280 A CN105567280 A CN 105567280A
Authority
CN
China
Prior art keywords
catalytic cracking
hydroxyapatite
junked tire
waste tires
cracking method
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.)
Pending
Application number
CN201510879466.8A
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Chinese (zh)
Inventor
袁显兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201510879466.8A priority Critical patent/CN105567280A/en
Publication of CN105567280A publication Critical patent/CN105567280A/en
Pending legal-status Critical Current

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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
    • C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
    • B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
    • B01J27/1802—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
    • B01J27/1806—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates with alkaline or alkaline earth metals
    • 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
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/70—Catalyst aspects

Abstract

The invention belongs to the field of chemical industry and discloses a catalytic cracking method for waste tires. The method includes: adding 0.8-5wt% of hydroxyapatite into the waste tires subjected to grinding treatment, well mixing, and performing catalytic cracking at 230-350 DEG C for 3-25min, wherein a calcium-phosphorus ratio of the hydroxyapatite is 1.05-1.50; separating reaction products to obtain high-temperature oil gas, carbon black and steel wires. A novel catalyst for catalytic cracking of the waste tires is provided to further provide a new approach for recycling of the waste tires. By adoption of the hydroxyapatite as the catalyst for catalytic cracking of the waste tires, high cracking efficiency, low reaction temperature, short reaction time and energy saving are realized.

Description

A kind of catalytic cracking method of junked tire
Technical field
The present invention relates to chemical field, particularly a kind of catalytic cracking method of 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 catalytic cracking method of the lower junked tire of a kind of cracking temperature.The present invention adopts hydroxyapatite 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 catalytic cracking method for junked tire, adds the hydroxyapatite of 0.8-5wt%, mixes in the junked tire after pulverization process, then at 230-350 DEG C, carry 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.
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.
Preferably, the hydroxyapatite of 0.8-2wt% is added in the junked tire after pulverization process.
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 hydroxyapatite 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 catalytic cracking method for junked tire, smashes 100kg junked tire, smashes in the junked tire after process and adds 1.2kg hydroxyapatite, mix; Then 310 DEG C, carry out catalytic pyrolysis under normal pressure, the reaction times is 20 minutes; The product that reaction generates is isolated to 31kg high-temperature oil gas, 46.5kg carbon black and 15.5kg steel wire; Wherein, the ratio of calcium and phosphorus of hydroxyapatite is 1.41; As oil fuel after the high-temperature oil gas condensation obtained; Cleavage rate is 93%.
Embodiment 2
A catalytic cracking method for junked tire, smashes 100kg junked tire, smashes in the junked tire after process and adds 1.2kg hydroxyapatite, mix; Then 310 DEG C, carry out catalytic pyrolysis under 1kPa tiny structure, the reaction times is 20 minutes; The product that reaction generates is isolated to 32kg high-temperature oil gas, 48kg carbon black and 16kg steel wire; Wherein, the ratio of calcium and phosphorus of hydroxyapatite is 1.41; As oil fuel after the high-temperature oil gas condensation obtained; Cleavage rate is 96%.
Embodiment 3
A catalytic cracking method for junked tire, smashes 100kg junked tire, smashes in the junked tire after process and adds 0.8kg hydroxyapatite, mix; 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 29.7kg high-temperature oil gas, 44.9kg carbon black and 14.9kg steel wire; Wherein, the ratio of calcium and phosphorus of hydroxyapatite is 1.27; As oil fuel after the high-temperature oil gas condensation obtained; Cleavage rate is 89.5%.
Embodiment 4
A catalytic cracking method for junked tire, smashes 100kg junked tire, smashes in the junked tire after process and adds 3kg hydroxyapatite, mix; Then 330 DEG C, carry out catalytic pyrolysis under normal pressure, the reaction times is 23 minutes; The product that reaction generates is isolated to 30.6kg high-temperature oil gas, 46.23kg carbon black and 15.2kg steel wire; Wherein, the ratio of calcium and phosphorus of hydroxyapatite is 1.51; As oil fuel after the high-temperature oil gas condensation obtained; Cleavage rate is 92%.
Comparative example 1
A catalytic cracking method for 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 (4)

1. a catalytic cracking method for junked tire, is characterized in that: the hydroxyapatite adding 0.8-5wt% in the junked tire after pulverization process, mixes, and then at 230-350 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.
2. the catalytic cracking method of junked tire as claimed in claim 1, is characterized in that: reaction pressure is normal pressure or tiny structure.
3. the catalytic cracking method of 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 catalytic cracking method of junked tire as claimed in claim 3, is characterized in that: the hydroxyapatite adding 0.8-2wt% in the junked tire after pulverization process.
CN201510879466.8A 2015-12-05 2015-12-05 Catalytic cracking method for waste tires Pending CN105567280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510879466.8A CN105567280A (en) 2015-12-05 2015-12-05 Catalytic cracking method for waste tires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510879466.8A CN105567280A (en) 2015-12-05 2015-12-05 Catalytic cracking method for waste tires

Publications (1)

Publication Number Publication Date
CN105567280A true CN105567280A (en) 2016-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510879466.8A Pending CN105567280A (en) 2015-12-05 2015-12-05 Catalytic cracking method for waste tires

Country Status (1)

Country Link
CN (1) CN105567280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110000197A (en) * 2019-04-29 2019-07-12 秦华 The preparation method of novel acidolysis reducing agent and its application in sulfuric acid method titanium pigment production

Citations (3)

* Cited by examiner, † Cited by third party
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
CN104673351A (en) * 2013-11-29 2015-06-03 招远市东晟橡胶制品有限公司 Cracking process of waste rubber

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
CN104673351A (en) * 2013-11-29 2015-06-03 招远市东晟橡胶制品有限公司 Cracking process of waste rubber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110000197A (en) * 2019-04-29 2019-07-12 秦华 The preparation method of novel acidolysis reducing agent and its application in sulfuric acid method titanium pigment production

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Application publication date: 20160511

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