Security issues
Inside the reactor, as the temperature rises, first light hydrocarbons such as ethane, methane, butane and propane are released, and then heavier hydrocarbons, such as hexane and higher, are released.
Therefore, inside the reactor, flammable gases and liquids vaporize at 400 degrees which creates a risk of explosion and fire if the reactor is not designed properly.
1) Environmental problems:
Usually, for the reactor energy, gaseous fuel and liquid obtained from the cracking operation in the previous batch of the reactor are used, which causes the release of harmful gases, including S and C gases, and heat from the exhaust of the mechanism. SOSO gases, SOSOs, SOCOs, C2Os, Suspended carbon particles and large amounts of heat enter the nature.
Introduction of different types of pyrolysis reactors:
Basically, the device for breaking rubber molecules in an oxygenfree environment at a temperature of 400 °C is called a rubber cracking reactor (pyrolysis oil).
2-A) Rotating horizontal reactors:
This system has the lowest technology. In this system, the tires are inserted directly into a rotating cylinder horizontally and this cylinder is equipped with a furnace at the bottom.
Rubber or wood or fossil fuels are used to fuel this furnace.
This technique is very risky and polluting and is only used in countries such as China, India and Pakistan.
2-B) Vertical reactors:
The advanced type of reactors is this process. Due to the stability of this reactor, all the risks of gas leakage (due to the lack of moving connections) are eliminated.
Such reactors can be unloaded and loaded automatically.
The pilot version of this car is also displayed in addition to the 3D design. In addition, the second video shows a reactor sample with the capacity of 5 tons per day.
3) Our solution to solve all these problems:
1) In the system designed by this group, first the steel wires of the tires are separated and these wires are converted into steel blocks by pressing and molding and are ready to be offered to the market.
2) The rubber is separated by the shredder into pieces and after passing through the sorting system, the parts are separated from the desired system (about one hundred square centimeters) and the larger parts are transferred to the shredder again and this operation continues until all the parts reach the desired size.
3) The mentioned rubber parts are introduced to the weight lifting counters by the conveyor line and are converted into oneton packages.
4) The mentioned packages enter the mother reactor in the form of a continuum, which practically includes four separate reactors. In this case, instead of a reactor with a volume of twenty tons, we will have reactors with a volume of one ton and the ability to discharge and load five cycles per day. Obviously, all controls in this volume will be very comfortable and without risk.
5) For reactor fuel, there is no furnaces equipped with flame in this process, and instead we use the required heat to pass an electric current in the resistor. Therefore, we eliminate the risk of explosion and ignition and reduce the pollution caused by the furnace to zero.
6) The exhaust gases and vapors of the reactor enter directly into the water condenser and become two-phase liquid and gas.
7) The gas phase enters the water filters by the blue vacuum pump. Therefore, it is washed and on the other hand, there is no risk of ignition (due to the mixture of Buddha, water and gas).
8) The liquid phase enters the storage tanks.
9) The system is equipped with two boilers. One boiler supplies its heat from the obtained gases and the other boiler uses fuel oil fuel. The output of both boilers is 180 degrees steam and 10 bar pressure.
10) The generated steam enters the steam turbine and the thermal energy is converted into mechanical energy that spins the turbine at a speed of three thousand revolutions per minute.
11) The steam turbine shaft is coupled to the alternator and due to the rotation of the alternator, mechanical energy is converted into electrical energy.
12) Exhaust gas boiler and pyrolysis boiler each enter the air washer room and depending on the laws of each region, several room washers are used to minimize pollution. These washing systems use sodium hydroxide mixed with water. The various photos shown below show the technique of each of the above.
the technique of separating steel wireshredder and sorter.
Liquid condensur ( paragraph 6)
Liquid vacuum ( paragraph 7)
Water filter ( paragraph 7)
Boiler (paragraph 9)
Air washing room (paragraph 12)
Steam turbine (paragraph 10)
Electricity production (paragraph 11)
Benefits of our technology:
1) As mentioned, in this system, no flame is used to crack rubber molecules, and in the absence of flame, it is obvious that there is no risk of ignition.
2) Due to the use of vertical reactors and the lack of moving connections, there is no possibility of gas leakage from the reactor.
3) All hydrocarbon gases produced by washing, filtering and cooling operations enter the boilers. Therefore, there will be no leakage and pollution.
4) The exhausts of both boilers do not come into direct contact with the air, but all of them become a completely acceptable output after passing through nano-cation air washers, cations, various flashback filters and oxidizers.
5) The materials produced at the end of the filtering operation (filter residues) are practically environmentally friendly salts, which include sodium sulfite and sodium hydrogen carbonate, which are also marketed in the paper industry and petroleum.
2NAOH + SO2 __> NA2SO3 + H2O In this equation, taking into account three percent of sulfur mixed in rubber and for a 20-ton pilot unit, the output of this gas will be an average of 500 kg per day, from which about one ton of sodium sulfate is obtained.
CO, CO2, In the same way, due to oxidation of gases, it is mainly converted to carbon dioxide and carbonic acid during washing.
CO2 + H2O > H2CO3
This acid is obtained in the air washing room gets mixed with sodium hydroxide and produce salt.
NAOH + + H2CO3 > NAHCO3 + H2O
6) The steam of the turbine passes through the condenser and is converted into idol water at a temperature of sixty degrees Celsius, which is re-entered into the boiler by a high-pressure pump.
