GC has conducted many projects relating to air pollution efficiency in 2022 to control air pollution in operating sites, offices, and surrounding areas within the standards stipulated by laws, regulations, and international practices. We have also implemented innovation and technology to reduce air pollution emissions through cooperation with government agencies and petrochemical industry operators to promote the practices to reach at maximum efficiency.
GC has controlled NOx and SOx emissions from production process to be lower than the limitation that prescribed in the Environmental Impact Assessment (EIA) Report and Thai regulations. GC has developed programs to monitor NOx and SOx emissions in order to reduce impact to environment such as
- Using Continuous Emissions Monitoring System (CEMS) and periodically monitoring air emission quality by the certified external laboratories.
- Improving Gas Turbines and Low NOx Burners to reduce the NOx pollution emitted from its source.
- Adopting a policy for selecting raw materials and fuels, which have less impact to health and environment.
- Using low sulfur fuel oil and feedstock to reduce SOx emissions from combustion.
- Minimizing amount of fuel oil consumption to limit SOx emissions.
In 2022, highlights projects relating to improvement on control efficiency of air pollution include:
Implementation of Code of Practice (CoP) to Reduce Emissions of 1,3-Butadiene
GC has implemented the Code of Practice (CoP) in our operations to enhance the management efficiency of VOCs from production processes in order to regulate benzene and 1,3 Butadiene emissions from turnaround activities to the minimum. Accordingly, GC has installed an efficient vapor treatment system, required the measurement and regulation of VOCs emitted during decontamination from vapor treatment system vents and the sampling point of equipment system as well as during the transfer of liquid waste to transportation for disposal. Moreover, GC has demanded that the piping system be tested prior to operations and arrange coverings for all connecting points to prevent VOCs leakage.
In terms of proactive surveillance, GC measures VOCs in the air surrounding the factory walls during three periods, namely before, during and after conducting an activity. This has helped to maintain VOCs to a low level with benzene and 1,3 Butadiene level at < 1 ppm and TVOCs at < 300 ppm.
Modify Vent Gas from TK-1201 to Flare System
GC has installed a system to collect air from the cumene storage tank for treatment at the Phenol Plant’s flare system under a budget of 15 million baht. As a result, the amount of cumene in the atmosphere around the Plant remained within the legal limit. After the project’s completion, no complaints regarding the odor of cumene were made by neighboring communities.