Pyrolysis of Tires 

Introduction to Integrated Pyrolysis


With the development of global economic and industry, countless amount of rubber, tire & plastic wastes are generated every day, which put enormous stress on environment. Nowadays more and more people are paying their attention on environmental protection. Since landfill and incineration are apparently not environmental methods for waste management, people are searching for a technology which is more environmental and profitable to cover the processing cost. 

Therefore pyrolysis plant designed for recycling tire & plastic wastes into fuel oil is developing and becoming known to more people in recent years as its environmental processing method and profitability. 

Meanwhile oil energy, as a non- regenerated energy resource, is supporting power to many industries. Tire & plastic pyrolysis oil, as the recycled oil energy from solid wastes, finds itself good markets and makes “waste tire & plastic recycling oil project” a feasible business. 

Space for Integrated 10 ton/day unit is 40 x 10m x 8m  (131 ft x 33 ft x 26 ft high)  

Parameters and Specifications:


WORKFLOW:








The pyrolysis process is one complete process which can not be separated into individual parts. There are 4 final products in total: 42-45% oil in oil storage tank, 35% carbon black (using tires) from the  spiral auger for taking out carbon black, 10% waste steel, 8-10% recycled gas which will be recycled and burned in burner. So there is no release from the middle step.

Please study the main process description for pyrolysis machine.

  1. We will send the tire pieces after shredding to   No.17 feeding conveyor
  2. The tire pieces will be feed into Item No.2 rotatable reactor through Item No.15 spiral auger, which can feed the tires automatically in high temperature in order to make the best use of heating energy 
  3. We will start heating in Item No.1 burner room when feeding is finished. And the hot air from burner room will go through the channel between reactor and Item No.3 casing for heating the machine quickly and safely.
  4. The oil vapor will come out from reactor to Item No.4 manifold when the temperature inside reactor rise up to 150-380℃ (Input: tire pieces; Output: oil vapor 97%, water vapor 3%)
  5. The oil vapor will be separated into light oil vapor and heavy oil in manifold. The light oil vapor will go to Item No.6 condenser for oil for cooling first and then become liquid tire oil which is stored in Item No.7 oil storage tank. Meanwhile, the heavy oil will go to Item No. 5 heavy oil tank for storing. (Input: oil vapor and water vapor; Output: heavy oil 3%-5%, light oil 42-45%, water 3% )
  6. The light oil vapor will become liquid tire oil and recycled gas which cannot become liquid oil after cooling but can be recycled for heating the machine. The recycled gas will be cleaned in Item No.8 hydroseal first and sent to Item No.1 burner for heating the machine. It cannot be burned completely in burner room sometimes, so it will be send to Item No.11 burner for combustible gas for burning.(Input: recycled gas; Output: CO2, H2O)
  7. The carbon black will be taken out automatically and full-closed by Item No. 18 spiral auger for taking out carbon black after oil finish coming (Input: tire; Output: 35% carbon black)
  8. The whole process is heated by hot air produced from burner room and driven by Item No.13 draft fan. The hot air from casing after heating reactor will be cooled by Item No.12 condenser for flue first and cleaned by Item No.14 dedusting device and then released to the air.


A short tour of a pyrolysis plant from tire chips of 50 x 50mm to tire oil and carbon black! enjoy! The process is one complete process which can not be separated into individual parts. There are 4 final products in total: 42-45% oil in oil storage tank, 35% carbon black from spiral auger for taking out carbon black, 10% waste steel, 8-10% recycled gas which will be recycled and burned in burner.


Main process description for pyrolysis machine 

  1. We will send the tire pieces (50mm x 50mm) after shredding to reactor (No. 2) via feeding conveyor.
  2. The tire pieces will be feed into Item No.2 rotatable reactor through Item No.15 spiral feeder which can feed the tyres automatically in high temperature in order to make the best use of heating energy 
  3. We will start heating in Item No.1 burner room when feeding is finished. And the hot air from burner room will go through the channel between reactor and Item No.3 casing for heating the machine quickly and safely.     
  4. The oil vapour will come out from reactor to manifold when the temperature inside reactor rise up to 150-380℃ (Input: tire pieces; Output: oil vapour 97%, water vapour 3%)
  5. The oil vapour will be separated into light oil vapour and heavy oil in manifold. The light oil vapour will go to       condenser for oil for cooling first and then become liquid tyre oil which is stored in Item No.8 oil storage tank. Meanwhile, the heavy oil will go to Item No. 6 heavy oil tank for storing. (Input: oil vapour and water vapour; Output: heavy oil 3%-5%, light oil 42-45%, water 3% )
  6. The light oil vapour will become liquid tyre oil and recycled gas which cannot become liquid oil after cooling but can be recycled for heating the machine. The recycled gas will be cleaned in Item No.9 hydroseal first and sent to Item No.1 burner for heating the machine. It cannot be burned completely in burner room sometimes, so it will be send to Item No.15 burner for combustible gas for burning.(Input: recycled gas; Output: CO2, H2O)
  7. The carbon black will be taken out automatically and full-closed by Item No. 17 spiral device for taking out carbon black after oil finish coming (Input: tire; Output: 35% carbon black)
  8. The whole process is heated by hot air produced from burner room and driven by Item No.13 draft fan. The hot air from casing after heating reactor will be cooled by Item No.12 condenser for flue first and cleaned by Item No.14 dedusting device and then released to the air. (Input: all kinds of fuel; Output: depends on the fuel we are using.

The 20T continuous waste tire Pyrolysis Machine with capacity of 15---20 TPD,  has its special characteristics: it allows 50*50mm of the waste tires containing blocks of wire material to be entered into the reactor. Compared with the previous continuous waste tire Pyrolysis Machine with 3-5mm of the waste tires not containing particles of wire material, it greatly reduces the pre-treating material costs.

VIEW OUR INSTALLATIONS AND TEST RESULTS BELOW!

Analysis of Economic Benefit


1. Technical parameter of equipment 

2. The area of the site is 600m(including 300mworkshop),  and 1000mmaterial storage and auxiliary area.

3. Daily production cost

    Take the pretreated waste tires as raw material, and LWJ-8 type as equipment;

    Economic benefit analysis of LWJ-8 type equipment


b. Fuel:24tons tires  *0.025/ton coal *$76/ton=   $19 per day              

(Price as Per Central Appalachia US Energy Information Admin )

Also for natural gas takes 5000 - 6500 ccf

c. Water and electricity: 44 kw*22 hours = 968 kwh     x $0.15_/kwh. =$145

    d. Workers’ salary: Eight (people)×8 hours x $15/hour =  $960

    h. Total: $1124 Production Cost Per Day

    

4. DAILY PROFIT (calculated that of WJ-8 type device)

    Daily output of carbon black by WJ-8-type device

 Raw material: 24tons waste tire tire disposal fee

(average tire weighs 25 lbs. so one metric ton of tires is 88 tires, which is daily income of $_______ DAILY income from carbon black

Tires oil: 24 tons* 45%=10.8 tons tire oil x 0.8 (tire oil to diesel) = $_________

24 x .45 x .8 = 17,280 lbs / 7.15 (lbs/gal) = 2416 gallon diesel x $3.00/gallon = $________ DAILY INCOME FROM DIESEL


Carbon black: 24tons*35%=8.4tons*$700_/ton=$5880 DAILY INCOME FROM CARBON BLACK

Averge price per ton is $700 as per kaycircle reference)

Wire:24tons*15%=3.6tons*$23/ton*=$$82 DAILY INCOME FROM STEEL WIRE

 

    5. Gross profit

Gross profit=   $18,972 DAILY GROSS INCOME

Net Profit Daily: $17,848


    Monthly profit: $17848 /day×25 days=$446,200 potential monthly income (less building, capital costs)




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