Industrial Solvent Removal
Activated Carbon for Industrial Solvent Removal
Industrial solvents—chlorinated hydrocarbons, ketones, aromatics—are valuable process inputs that become hazardous waste the moment they leave the reaction vessel. Their removal is not just an environmental compliance issue; it is an economic recovery opportunity.
Yet solvents present a unique adsorption challenge: they are often polar, highly volatile, and present in concentrations that can saturate standard carbon rapidly if the system is not properly configured.
The Challenge & PureStar Approach
The operational tension is between capture efficiency and recovery feasibility.
- A carbon that adsorbs solvents too strongly may require extreme thermal conditions for regeneration, destroying both the solvent and the carbon.
- One that adsorbs too weakly allows fugitive emissions that trigger OSHA and community complaints.
The sweet spot is selective, reversible adsorption that enables both compliance and recovery.
The PureStar Solution
PureStar's solvent removal grades balance adsorption strength with desorption practicality:
- VOC Application Grades: Our coal-based and pelletized carbons are engineered with pore structures that capture solvent vapors efficiently in the adsorption cycle, yet release them cleanly during steam or thermal regeneration.
- Liquid-Phase Process Streams: For solvent recovery from liquid streams, polarity-selective surface chemistry preferentially adsorbs polar degradation products while allowing the valuable non-polar solvent to pass, extending solvent life and reducing fresh makeup.
