CIRRUS VEC System
Cryogenic condensation system to recover volatile organic compounds
Page last modified
December 7 2024
The CIRRUS VEC (Vapor Emission Control) System is a cryogenic condensation technology designed to minimize the atmospheric emission of volatile organic compounds (VOCs) by using cryogenic liquid nitrogen. It works by condensing VOCs from a process gas stream through contact with the extremely cold liquid nitrogen temperatures.
The system consists of modular condensation units (CIRRUS M50, M150, and M500) with nominal flow capacities ranging from 50 to 500 Nm3/h. These modules can be combined to handle emission flows between 10 to 1,000 Nm3/h. An optional condensate tank module (CIRRUS TM100) can collect the condensed VOCs. Additionally, an adsorption module (CIRRUS ZE300) with zeolite pellets can be integrated for further VOC reduction if needed.
The key advantages of this technology include its environmental friendliness (no CFCs, wastewater, or secondary pollution), safety in explosive atmospheres (no ignition sources), cost recovery through nitrogen/solvent recycling, and simple operation. The process is suitable for various VOCs like hydrocarbons, halocarbons, alcohols, and solvents with freezing points preferably below -22°F. By effectively controlling VOC emissions, the CIRRUS VEC system helps facilities comply with evolving environmental regulations while potentially generating emission credits.
Pros & Limitations
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Nitrogen is an inert gas that is not harmful to the environment
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The nitrogen does not mix with the VOCs, therefore both the nitrogen and the condensed VOCs can be reused for other purposes within the process
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The process is free of chlorofluorocarbons (CFC"s) and generates no wastewater or secondary pollution
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The equipment has no sources of ignition and has been designed to safely operate in potentially explosive atmospheres
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Costs are recovered through nitrogen recycling, solvent recovery, and increased production
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Operators interact with the equipment through a simple and easy-to-use control panel
Specification
| Title | Description |
|---|---|
| Theme/Discipline | Process Engineering |
| Core Tech | Process Equipment |
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Flow rates
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1750, 5250, 17500; # Nominal flow rates in scf/h for M50, M150, M500 modules
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Cooling duties
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6, 25, 80; # Nominal cooling duties in kW for M50, M150, M500 modules
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Pressure ranges
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Process gas side: -14.5, 80; # Min/max pressure in psig
Nitrogen side: 45, 275; # Min/max pressure in psig |
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Temperature range
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-321, 300; # Min/max temperature in °F
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Dimensions
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Width: 32, 48, 63; # Width in inches for M50, M150, M500 modules
Depth: 48, 48, 170; # Depth in inches for M50, M150, M500 modules Height: 111, 134; # Height in inches for M50, M150 (no data for M500) |
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Weights
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772, 1810, 3700; # Weight in lb for M50, M150, M500 modules
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Exclusive content
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Linde is a leading global industrial gases and engineering company that delivers high-quality solutions, technologies, and services to make its customers more successful and contribute to a sustainable and decarbonized world. The company offers a wide range of products, including industrial, specialty, and healthcare gases, along with handling equipment and support services. Linde's gases and application technologies play an essential role in various industries, such as chemicals, electronics, food and beverages, and construction. With operations in more than 80 countries, Linde is committed to making the world more productive through its expertise, established infrastructure, and investments in clean energy, decarbonization projects, and research and development.
Country of Headquarters
Netherlands
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