Evaluation of Plastic Waste Management in Thailand Using Material ...

Residue wastes are produced about 1-2 m 3 within 3 days from this reactor, so this reactor
needs maintenance to remove residue wastes and check the entire equipment. This
maintenance is usually done every 3 days, and all machines are stopped for 18 hours each
time. Major maintenance is done every 3 months, and each time takes one week to repair and
clean the machines. The pyrolysis reactor is shown in Figure C-18, and Figure C-19 presents
the plastic to oil system.
a) Prepared plastics for feeding
c) Crude oil storage tank
3. Business information
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b) Pyrolysis reactor
Figure C-19 Plastic to oil system
d) Residue wastes from reactor
This pyrolysis plant required around 150 million Baht for investment including building,
pyrolysis reactor, machine import, controlling system, and workers. The operational costs are
15 Baht/L, and the selling costs are 18 Baht/L. The crude oil from this plant is sold to the
Integrate Refinery Petrochemical Complex (IRPC Refinery) in Rayong and Bangchak
Petroleum Plc. Single Point Energy Environment Ltd., Co. has a plan to develop this project.
For example, the residue waste from reactor is analyzed to identify its properties in order to
utilize this waste stream instead of disposal. The capacity of this reactor is very low, so