VOC Absorption
What is absorption ?
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Absorption is a mass transfer operation in which one or more soluble components of a gas
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mixture are dissolved in a liquid that has low volatility
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The pollutant diffuses from the gas into the liquid
The suitability of gas absorption as a pollution control method is generally dependent on the
following factors
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Availability of suitable solvent
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Required removal efficiency
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Pollutant concentration in the inlet vapor
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Capacity required for handling waste gas
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Recovery value of the pollutant(s) or the disposal cost of the spent solvent
Physical absorption depends on properties of the gas stream and solvent
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Density and viscosity
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Specific characteristics of the pollutant(s) in the gas and the liquid stream
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Absorption is enhanced by greater contacting surface, higher liquid-gas ratios, and higher concentrations in the gas stream
Patented Absorption Scrubber
Blower
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Extracts gas stream from Tank
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Creates positive pressure in the scrubber
Scrubber
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Liquid- Gas interface
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Extracts VOC and HAPS from gas stream
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Enriches liquid absorbent (Plant based lean oir or Diesel Oil
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Generates “scrubbed” air stream vents to the atmosphere
Patented Absorption Technology based on Nano- bubbles generation
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Gas stream enters the scrubber and is distributed through the central air header into the porous pipes
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Scrubber recyclable liquid
Plant based oil
Once enriched with the gas stream, is recyclable.
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Porous pipes where absorption occurs. One pass = 99% efficiency
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Demister, vent to atmosphere
Patented Absorption Scrubber: What’s inside
Microbubbles with scrubbed gas
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Contact surface
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Contact time
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Higher liquid-gas ratios
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Microbubbles generation
The porous tubes design increases the efficiency of absorption main properties
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Contact surface
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Contact time
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Higher liquid-gas ratios
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Microbubbles generation
NanoVapor Vapor Absorption System –VAS-
versus others
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When searching for air compliance solutions, there are a number of options that might qualify as a BACT (Best Available Control Technology).
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Conventional wet scrubbers, carbon absorption systems, thermal oxidation, and flaring—the historically default technologies—are often operationally or economically unviable.