SEPARATION AND PURIFICATION : CARBON ADSORPTION & VOC RECOVERY

CARBON ADSORPTION & VOC RECOVERY 2018-10-02T16:38:38+00:00

Carbon Adsorption Plants

GPE offers vapor phase activated carbon systems for the removal of volatile organic compounds such as hydrocarbons, solvents, toxic gases and organic based odors. In addition, we design chemically impregnated activated carbon systems to control inorganic pollutants such as hydrogen sulfide, mercaptan, mercury, radon, dioxin, ammonia, amine, arsine, phosphine, aldehydes, radioactive Iodine, radioactive methyl iodide, acid gases (HCL,SO2,HF,HCN), nitrogen oxide and many more. The most common applications of activated carbon are for process gas and off-gases, tank vent emissions, work area air purification, and odor control, either within the plant or related to plant exhausts. We also recommend the use of activated carbon for hazardous waste remediation, to treat off-gases from air strippers & soil vapor extraction remediation projects and to handle toxic/hazardous air pollutants.

VOC Recovery Systems

Controlling volatile organic compound (VOC) and hazardous air pollutant (HAP) emissions are achieved by various means. We offer the following options:

  • Activated Carbon for Vapour Phase Adsorption and Recovery.
  • Activated Carbon for VOC removal from water with Air Stripper. Recovery can also be done.
  • Condensation for Vapour Phase and Recovery.
  • Particulate filters.

Vapour Phase Adsorption

The design of an adsorber system depends on the chemical characteristics of the VOC or HAP being recovered, the physical properties of the inlet stream (temperature pressure and gas flow) and the physical properties of the adsorbent. Physical adsorption is an exothermic process that is most efficient within a narrow range of temperature and pressure.

Vapour Phase Condensation

Separation via condensation can be achieved by increasing the system pressure at a given temperature (compression condensation) or by lowering the temperature at a constant pressure (refrigerated condensation). In a two-component system where one of the components is non-condensable (e.g., air), condensation occurs at the dew point (saturation) when the partial pressure of the volatile compound is equal to its vapor pressure.