Air Pollution Control

Air
Pollution
Control
Management

Management policy

We comply with environmental regulations, commitments and strive to reduce and prevent pollution, mitigate potential risks in operations, and continuously improve.
We conduct regular and irregular inspections to review our compliance with environmental regulations and propose corresponding improvement measures for non-compliance.

Management goal

We conduct daily equipment inspections and monthly factory environment inspections by 5S teams to prevent pollution. We prevent the leakage and volatilization of harmful substances or gases and reduce the emission of particulate matter and spills of PVC resin silo.

The main air pollutants emitted from the processes of each plant of CGPC include sulfur oxides (SOx), nitrogen oxides (NOx), volatile organic compounds (VOCs), and Hazardous Air Pollutants (HAPs).

In order to effectively control air pollutants, each plant of CGPC regularly conducts air pollutant monitoring and reports to the competent authority on schedule. It also obtains the fixed pollution source installation and operation permit in accordance with the law and has air pollution dedicated personnel and agents to manage it. CGPC (Toufen Main Plant) built a new Activated carbon Fluidized Bed Technology for VOCs Adsorption and Control in 2022, to reduce VOCs and mitigate greenhouse gas emissions.

■ Air pollution emissions of each plant in the last 3 years

Unit: tons/year

By company
Pollutants
2022
2023
2024

CGPC
(Toufen Main Plant)
Sulfur oxides (SOx)

1.449

0.883

0.000

Nitrogen oxides (NOx)

25.453

27.014

16.949

Volatile organic compounds (VOCs)

404.442

304.979

237.496

Hazardous air pollutants (HAPs)

8.987

13.277

7.275

TVCM
(Linyuan plant)
Sulfur oxides (SOx)

0.111

0.117

0.106

Nitrogen oxides (NOx)

56.320

52.409

60.250

Volatile organic compounds (VOCs)

33.449

35.465

16.416

Hazardous air pollutants (HAPs)

15.112

17.218

6.559

CGPCP
(Linyuan plant)
Volatile organic compounds (VOCs)

5.116

6.951

7.188

Hazardous air pollutants (HAPs)

0.932

1.486

2.524

Total
Sulfur oxides (SOx)

1.560

1.000

0.106

Nitrogen oxides (NOx)

81.773

79.423

77.199

Volatile organic compounds (VOCs)

443.006

347.395

261.100

Hazardous air pollutants (HAPs)

25.031

31.981

16.358

Note 1：

CGPC completed the installation of pollution control equipment in 2022 and added a natural gas boiler in October 2023 to gradually reduce the use of coal-fired boilers. Toluene and xylene account for the majority of HAPs emissions at the plant. Therefore, starting in 2025, CGPC has begun reducing the use of raw materials containing toluene and xylene to lower HAPs emissions.

Note 2：

In 2024, TVCM converted all EDC and light/heavy fraction storage tanks into pressure-type tanks and adopted closed gas collection systems to connect with control equipment. Dichloroethane is the main component of HAPs emissions at the plant. To further reduce emissions, equipment upgrades will be carried out on the tail gas incinerator (F-6801) and the stripping tower for wastewater (C-6251). Regarding the noticeable increase in NOx emissions, an intelligent energy-saving project(C-6202) will be implemented in process facilities to address the issue.

Note 3：

The primary HAP emitted at CGPCP is VCM. Due to aging spiral heat exchangers with poor heat exchange efficiency, the VCM removal efficiency is suboptimal. An upgrade of the spiral heat exchanger is planned for this year to improve VCM removal efficiency.

Note 4：

HAPs emissions are reported and calculated according to the Ministry of Environment’s “Air Pollution Control Fee Collection Regulations,” which specify individual substance declaration requirements.

Note 5：

Emission factors are determined using either the coefficient method (as stipulated by the Ministry of Environment) or the testing method (based on the average results of the three most recent reports issued by external testing agencies).

The description of effeteness for activated carbon Fluidized Bed Technology for VOCs Adsorption and Control

CGPC's leather plant promotes “circular economy, cost reduction, and employee work environment health and well-being”.

Abnormal leaks and emissions of volatile organic compounds (VOCs) can impact the environment and affect health. We take a proactive approach to this issue and strictly require improvement. The pollution control of this project is better than the regulations. We hope to reduce air pollution and contribute to environmental protection and the health of workers.

The effectiveness of activated carbon fluidized bed control equipment.

(1)

Prevent emissions: Outperform environmental regulations and save air pollution costs.

(2)

Circular Economy: Recovery and reuse of VOC and mixed solvents.

(3)

Economies Effect: Reduce production costs and outsource to treat wastewater to resale, which could use as high-heat-fuel.

(4)

Social participate: Improve the air quality of employee and community.

Investment

Motivation：
To reduce VOCs air pollution control and reduction, we are constantly looking for ways to improve process and module test design. We are also developing and deepening environmentally friendly, green energy-saving, and recycling and reuse technologies.
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Execution condition:
Plan to set up activated carbon fluidized bed control equipment (Invest NTD 65 million dollars).

Improve the capture efficiency of VOCs from manufacture process to reduce emissions.

Integrity and improve the process equipment to reduce the energy consumption and cost.

Refine the method of VOCs capture to reach the circular economy around the wastes.

Output

External effectiveness (Society):
VOCs generated from the process is reduced by an optimized capture and treatment, which can greatly improve the negative impact on human environment and health, and largely reduced emissions. Contribute to the protection of the earth's environment.
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Opportunity effectiveness:
VOCs generated from the process could recycle back into the manufacture process or outsource to treat and then sell to relevant markets, achieving the benefits of a circular economy.
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Internal effectiveness (Company):

Improve the workplace environment.

Retrofit exhaust blower to improve the efficiency of capture to lower the power consumption by 43%. Reduce the carbon emissions 46 tones/CO₂e annually and save the air pollution fee.

Waste liquor was recycled and back into the manufacture process to reduce the production cost.

Effectiveness

The effects on beneficiaries.

Strengthen operational expertise.

Minimize occupational hazards for employees.

Create a sustainable and livable community.

Meet global recycling standards.

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Internal effectiveness:

The company is recognized for its commitment to employee care.

Attract talent.

Increase employee engagement.

Boost customer retention.