Feasibility analysis report of Waste plastic to oil plant project
- The development prospect of waste plastic to oil plant project
In China, most of the waste plastic to oil plant project is vertical boilers or horizontal boilers. Such boilers exist some shortcomings like uneven heating, slow pyrolysis, short life span boilers and so on. Our doing group spend many years on the research and development of the waste plastic to oil plant project, a new efficient environmental protection—DY series and solid compound catalyst, here is the advantages of this series:
Plastic to oil plant
- Environmental protection: It is through the flue cooler and film-water dedusting system to remove dust. More than 95% of the dust would be removing.
- Energy saving: In the process of pyrolysis, some combustible gas cannot be converted into oil liquid in normal temperature and pressure, which could be recycled to the bottom of the reactor for reheating through the pipe of tail gas. In this way, it can avoid the gas contamination and save the fuel energy.
- High-efficiency: The structure of reactor which for the pyrolysis process is 360-degree rotating. This special design makes the bottom of reactor heat evenly, which longer the life spans of reactor as well as improve the pyrolysis speed. Coupled with the solid compound catalyst our company developed, the pyrolysis speed of our machine is far more than any other domestic reactors.
- The characteristics of DY waste plastic to oil plant series:
- Catalyst chamber
- Condenser system
- Feeding system
- Pressure and temperature alarm system
- Electronic control system
- Automatically slagging and safety system
- Environmental protection and tail gas recycling system
II. Special design of several systems
- Slagging system
- Environmental protection system
Carbon black: After the pyrolysis process of waste plastic, it will produce some waste residue which the weight is nearly 5-10% of the plastic. And the main component is carbon black which can be materials for producing industrial carbon black or mixed with coal ash to make flyash brick..
Waste water: In the whole pyrolysis process, only condensers and cooling devices need circulating water to cool the system. The water sealing devices will produce little waste water, which can be processed in the flue heat system
- . Exhaust system
- Newest technology of pyrolysis
I Because the plastic is made of different raw material, the pyrolysis process is also a little different.PE,PP and PS are decomposed at 300-400 centigrade degrees.
But the PVC is decomposed at two stages which are 200-300 and 300-400 centigrade degrees.The PVC may release HCL and hydrocarbon, and then break down step by step.Due to the corrosivity of HCL,and it will effect the pyrolysis catalyst, life span and the oil quality.Then the pyrolysis technology requests that the PVC should be less than 30% of the waste plastic.
II The molecules of different plastic is very different, so the final product and oil yield is different.Generally,there are four kinds of final pyrolysis products: hydrocarbon gas(C1-C5), oil (gasoline is C5-C11,diesel oil is C12-C20,the heavy oil is C20), paraffin and coke.
(Chart 1.).This is the oil yield of some typical plastic.
- Waste plastic to oil plant working process:
Waste plastic to oil plant working process
- The raw material for pyrolysis
With the upgrading of plastic packages, TVs, washing machine, refrigerator, computers, mobile phones, VCD, DVD and etc, the major environmental problem is caused by household electrical appliances. The quantity of the recycled waste plastic is produced more than 150 thousand tons every year. If adding the waste electronic communications equipments, the number will be 200 thousand tons. There are 1 million tons electronic electrical plastic accessories in the world, they are used widely in industry, digital information, transportation, aerospace and etc areas. Besides, they are upgrading very quickly. As such products are broken,it will be an important source of waste plastic.
II Waste rubber tire and waste cable.
III Waste oil( Waste engine oil,waste diesel oil ,waste oil sludge and so on)
IV Waste crude oil
- Investment requirement and economic benefit analysis
|Technical parameter of waste plastic to oil plant|
|3||24-hour Capacity||6 ton||8 ton||10 ton||12ton|
Cooling area of
|9||Size of Reactor(D×L)||2200×6000||2200×6600||2600×6600||2800×6600|
II Investment requirement (take waste plastic capacity pyrolysis for example)
Production of crude oil
Waste plastics to product crude oil as an example:
The price of waste plastics: 200RMB/T
1 ton of crude oil feedstock costs: (1/45%)*200=715RMB
Coal costs: 0.4T*800RMB/T=320RMB
Cost of electricity: 100RMB
Labor costs: 4*50=200RMB
Crude oil market price: 4000RMB/T
The production of one ton of crude oil profits: 4000-715-320-100-200=2665RMB
Remarks: crude oil prices to 80 dollars to international stability/barrel calculated. Common waste plastic oil rate of between 20%-45%, Polyethylene plastic net oil rate can be as high as 70% or even 85%, high-density cable out of the oil rate can be as high as 70%. Oil rate of the specific number of raw materials should be based on actual basis.
IV Investment recovery analysis
Take this waste plastic machine for example, the machine can be finished installing in 30 days. All the investment can be recovered in two months.
II Pls takes the price of crude oil for reference. The data was reported in last year.
III Our equipment and technology only establish the provincial or foreign agents, who can control the production line, sales or technology transfer in the local province. We don’t take part in their management.
IV If some factories want to be the province agent in the production line, we can lower the agent fee.