□ Necessity of the Applied Product

1. VOCs (Volatile Organic Compounds) are high-concentration pollutants that occur during factory operations and in tank storage facilities. They are a major cause of air pollution and a significant factor in climate change. Regulations to control VOCs are continuously being strengthened, and existing treatment methods such as activated carbon adsorption, RTO (Regenerative Thermal Oxidizer), and VCU (Vapor Combustion Unit) have not fully addressed the issues of reprocessing and secondary air pollution. Recently, the government has announced the Third Comprehensive Plan for Air Quality Improvement, indicating ongoing efforts to strengthen regulations on fine dust and VOCs.

2. To respond to the emergence of new VOC substances and increasingly stringent legal regulations, there is a demand for high-performance environmental equipment. Our company has developed a "High-Concentration VOC Treatment System Using Cryogenic Condensation Technology" to meet these contemporary requirements.

   • System Name: Cryogenic – Vapor Recovery Unit (C-VRU 50~500)
   • Capacity: Capable of handling low flow rates (700 N㎥/hr) of high-concentration VOCs.
   • VOCs: Volatile Organic Compounds

□ Details of the Applied Product

1. Cryogenic Condensation Technology

   • Uses cryogenic liquid nitrogen (LIN) to rapidly cool and condense VOCs (volatile organic compounds) for recovery.
   • Condensed VOCs can be recovered and reused in their original form, and the vaporized nitrogen is reused in the process.

2. Vacuum Insulation Technology

   • Maintains a low-temperature environment through refrigerant circulation using liquid nitrogen, ensuring efficient VOC condensation.
   • The liquid nitrogen used as refrigerant is reintroduced into the process as gas, reducing operational costs.

3. Dual Refrigeration Technology

   • In environments where liquid nitrogen cannot be used, a dual refrigeration unit can maintain cryogenic temperatures (around -80°C), providing flexibility in VOC condensation and recovery across various industrial settings.

□ Features of the Applied Product

1. Target Applications and Scope

   • Suitable for chemical processes and petrochemical plants that emit high-concentration VOCs with very low freezing points and high volatility (e.g., Methylene Chloride, Chlorine, PCE, TCE, AN).
   • Especially effective in facilities where secondary environmental pollution occurs after incineration.

2. Operational Efficiency

   • Recovered VOCs can be transferred to product tanks for reuse, offering economic benefits.
   • The compact, skid-mounted structure requires minimal installation space and eliminates the need for pre-treatment equipment like activated carbon or filters, simplifying maintenance and operation.
   • Safety and Environmental Benefits
     • No incineration, thus no generation of secondary pollutants like NOx and dioxins, with easy installation of explosion-proof equipment.
   • Patent
     • The technology has been fully developed and is patented (Patent No. 10-2324814).

□ Differences from Existing Products

• Existing VOC Treatment Equipment: Adsorption (activated carbon), absorption (scrubbers), thermal incineration (RTO, VCU)
• C-VRU 50~500: Rapid cooling and condensation using cryogenic liquid nitrogen

Item	Existing VOC Treatment Equipment	C-VRU 50~500
Treatment Method	Adsorption, absorption, thermal incineration	Rapid cooling and condensation with cryogenic liquid nitrogen
Operating Costs	High energy consumption due to high-temperature combustion, periodic activation carbon replacement costs	Reduced refrigerant costs with recycled nitrogen, lower energy consumption
Environmental Impact	Potential for secondary pollutants (NOx, dioxins), wastewater and waste generation	No secondary pollutants, no wastewater or waste generation
Safety	Requires ignition source, backfire prevention equipment	No ignition source needed, reduced explosion risk, easy to install explosion-proof equipment
Application Range and Flexibility	Effective only under specific concentration and flow conditions, lower flexibility	Effective for various VOCs with low freezing points and high volatility
Reusability	Difficult to reuse, requires waste treatment	VOCs can be reused in their original form
Patent	Slow innovation in existing technologies	Developed and patented technology (Patent No. 10-2324814)

□ Performance and Function Enhancement

1. Investment Economical Advantage from Reuse of Recovered Material

   • The recovered VOCs do not come into contact with the refrigerants or liquid nitrogen, allowing for recovery and reuse in their original form, thus ensuring investment economy (Pay-out: approximately 5 years).

2. Reduction in Required Installation Space

   • Compact structure allows for skid-mounted production.

3. Cost Reduction from Avoiding Secondary Pollutants

   • No need for additional investments in SCR to handle secondary pollutants like NOx and dioxins that are generated during incineration.

4. Reduction of Explosion Risks

   • The system does not require an ignition source for combustion or waste disposal, making it easier to implement explosion-proof equipment. (Applicable VOCs: AN, MC, chloroform, PCE, TCE, and other substances difficult to incinerate or gasoline)

□ Impact on Related Industries

1. Chemical and Petrochemical Industries

   • Effect: More effective and economical treatment of high-concentration VOCs from chemical and petrochemical processes.
   • Outcome: Reduces harmful air pollutants from chemical processes, ensures compliance with environmental regulations, and provides cost savings and resource recycling.

2. Refining Industry

   • Effect: Enables recovery and reuse of VOCs from refining processes.
   • Outcome: Reutilization of volatile organic compounds reduces waste, decreases air pollution, and lowers compliance costs with environmental regulations.

3. Pharmaceutical and Biotech Industries

   • Effect: Allows recovery of organic solvents used in pharmaceutical and biotech processes, enhancing production efficiency.
   • Outcome: Reduces production costs by reusing expensive organic solvents and contributes to environmental protection.

4. Environmental Protection and Regulatory Compliance

   • Effect: Cryogenic VOCs condensation technology reduces the generation of secondary pollutants like NOx and dioxins.
   • Outcome: Facilitates compliance with environmental regulations and helps reduce environmental pollution, fulfilling social responsibility.

5. Energy Industry

   • Effect: Recovery of VOCs like gasoline during energy production for reuse.
   • Outcome: Increases energy efficiency and reduces waste of energy resources.

6. Economic Benefits and Competitiveness Enhancement

   • Effect: Enables reuse of raw materials and energy, reducing costs and improving productivity.
   • Outcome: Increases economic benefits for companies and strengthens market competitiveness.

7. Technological Innovation and Market Expansion

   • Effect: Innovative cryogenic VOCs recovery technology promotes technological advancement in related industries and creates new market opportunities.
   • Outcome: Increased adoption of new technologies across various industries and expansion of related markets.

8. Global Market Expansion

   • Effect: Commercialization of cryogenic VOCs treatment and recovery technology can lead to entry into international markets.
   • Outcome: Provides a competitive edge in the global market for air pollution control equipment based on domestically verified new technology.