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Titan Technologies’ pyrolysis process is truly unique. After twelve years of experience in developing and continually upgrading an effective and reliable tire recycling process, Titan’s design is based upon a processing sequence that utilizes a number of proven chemical engineering principles working together in an innovative configuration. Its pyrolysis process is a combination of established chemical engineering operational procedures that are integrated into an interrelated and functional design. These principles are utilized in Titan’s Phase III plant design.
- Hydrocarbon distillation and condensation
- Negative atmospheric pressure operations
- Magnetic separation of ferrous materials
- Gas, liquid and solid separation criteria
- Thermo dynamics of gas/solids heat transfer
- High temperature operation in a reducing atmosphere
The basis for design is for twenty-four hour continuous operations with scheduled short-term and long-term maintenance shutdowns to service and maintain systems as required. The facility occupancy ranges from about 10 to 20 people depending on how the Operator runs the facility.
The shredded tire chips are metered into the process at a constant feed rate using a loss-in-weight feeder. The tire chips are then conveyed up and dropped through a double flap into a tank filled with tire oil recovered from the process.
The tire chips enter the reactor. The reactor is operated at a slight vacuum and must be airtight. Each reactor screw has a heating jacket encompassing the bottom half of each auger housing. A proprietary catalyst is added near the reactor inlet to promote the break down of the rubber compounds. In the reactor the heat breaks down the rubber. The hydrocarbon gases are drawn off through a gas collection header.
The following
quantities are produced per ton
of tire chips:
- Approximately 644 pounds of carbon black
- Approximately 304 pounds of steel
- Approximately 3.20 barrels of hydrocarbon blending oil
The hydrocarbon gas leaving the reactor is sent through a filter that is Titan Technologies proprietary design that removes most of the entrained carbon particles from the gas stream. The recovered oil is sent to storage. Centrifugal blowers are used to produce the negative pressure required in the reactor chamber. The methane gas is compressed to thirty-five pounds per square inch for use as fuel for the reactor’s air heating units.
The steel is separated from the carbon using a two-stage drum type magnetic separator and is sent to wash tank. The steel wire is removed from the wash tank via a magnetic conveyor and is sent to storage or further processing. The wash water is circulated through a membrane filtration unit to remove the carbon particles and then returned to the steel wash tank.
The carbon leaves the magnetic separator and is conveyed into a sealed tank then into a storage silo using a screw conveyor.
The prevailing markets for Titan’s plant output of carbon black, liquid hydrocarbons or blending oil, and scrap steel, are large and open commodity markets and these commodity products can be readily sold at prevailing market prices.
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