3) P2P FROM PLASTIC TO PETROL - Mar 08 - FISSORE Agency

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FISSORE AGENCY P 2 P PLASTIC TO PETROL 5.4 The Process The process technology is designed to be a flexible system to convert the plastics into liquid, gaseous or mixture products. By changing the catalyst mix we can obtain either LPG, mixture of LPG and petrol like fuels or a mixture of both. The system has the flexibility of production and in case large quantities have to be handled then, additional modules can be added. Each module is designed for 20 tons per day production capacity. However smaller modules can be provided. 5.5 Process Assembly 1. Plastic Preheating and filtration. Plastics is a solid substance. Plastics are segregated from other waste coming from the Municipal solid waste or any other industrial locations. The waste plastics are cleaned in an autoclave system to remove debris and contamination. The cleaned plastics have reduced volume. Plastics are preheated and brought into a molten condition into the Reactor vessels . The system consists of a Hopper which holds 2 tons of waste plastic. The Hopper delivers plastic material through a conveyor system to a pre-heater. The pre-heater is heated through Thermic fluid up to a temp. of 250°C. The plastic throughput is measured and the heating cycles are adjusted to the feed rate . 2. Heating and Catalyst Mixing. The molten plastic is then pumped into airtight reactors. The reactor is purged with Nitrogen to create a flameproof environment. The plastic is then heated from app 250 deg C to 380 deg C. The powder catalyst specially formulated for this reaction is then added through a pressure feed pump. The reactors have a holding capacity of 5 tons. Plastic is fed in the molten stage continuously into the reactors along with the catalyst. The Reactors have the capacity to convert 25 tons of plastic per day. Higher capacities can be achieved by adding more reactor modules to the system. ALL our systems are ZERO air e mission
FISSORE AGENCY 3. Reaction in vessels The mixture is heated and the reaction in the presence of the Catalyst will from hydrocarbon vapours. However, the vapours are emanated from heavier chains and similar to polymers in structure. The catalyst helps to re-group the molecules to form light gases, which are then evacuated to the condensers. The plastics can be of many forms. They can be PP, PET, PE, HDPE, LDPE, PVC etc. The nature of the plastics is immaterial as the process is capable of handling individual grades of plastics or a combination of them. All these materials are long chain hydrocarbons and they are very stable. Therefore, when we heat them and cool them again, they will attain the original status and convert back into semi-solid material. However, in the presence of the Catalyst, the long chains are broken and the molecules re-group into lighter hydrocarbon fractions. Therefore, when cooled and condensed, the vapours attain the state of a light hydrocarbon fuel such as Petrol. The vapours consist of two phases, condensable gases and non-condensable gases. 4. Vapour Condensation The mixture of condensable and non-condensable gases from the reactors is force fed into a dual condenser system where the light factions, middle distillates are condensed and recovered as fuel. During the vapour phase, many factions of distillate are formed having different boiling points. Therefore, the condensation is done in two stages to condense the vapours into two ranges of boiling points and thus distillates are recovered. Major portion of the condensate is normally a diesel faction. The condensable factions are condensed and the non-condensable form is evacuated and mixed with air to act as fuel for feeding the burners. Thus, the waste gas is converted into a fuel and not released into the atmosphere as a gas. The calorific value of this gas estimated to be above 10,000 KCal. The condensation system can be custom designed to manufacture a mixed fuel or distillated products. Thus, the re-combining of the hydrocarbon chains can be tailor made to suit the plant output requirements. Gasoline, Diesel, fuel oils, naphtha, petrol etc. can be distilled as separate products from the system if the output plan is for such a range of products. The most common stream is a single condensate which can be used as a fuel oil are a diluent to the furnace oils, or furnace oil quality fuel to feed Gen sets. The condensation system is grouped in one single skid and the parameters are controlled automatically with in-built electronic controls . 5. Condensate to tankage P 2 P PLASTIC TO PETROL The condensate from the dual condensers is collected into the storage tanks. The product at this stage is free from solid particles and water. The product specifications match or exceed that of diesel fuel. Sometimes based on the input, we may get a product similar to Fuel oil but with low viscosity in the range of 2 to 5 cst. Generally these fuels have lower sulphur content compared to distillate fuels. ALL our systems are ZERO air e mission
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3) P2P FROM PLASTIC TO PETROL - Mar 08 - FISSORE Agency

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