Patent ID: 7389654
Filing Date: 2008-06-24
Classification: B01D,B01J,B08B,B09B,C01B,F25J,Y02E,Y02P,Y10S,Y10T

Abstract:
1. A process for use of gases collected from a solid/liquid material waste site comprising: collecting gases from the material waste site separating the collected gases into at least three streams comprising a hydrocarbon stream, a carbon dioxide stream, and residue stream, condensing at least a portion of the carbon dioxide stream or hydrocarbon stream to a liquid or supercritical liquid, using at least a portion of the hydrocarbon stream to generate energy, and using energy from the hydrocarbon stream to power a commercial process comprising cleaning with carbon dioxide as a cleaning material and optionally at least one process selected from the group consisting of carbon dioxide liquefaction, hydrogen production, carbon black production, cleaning with carbon dioxide as a cleaning material, molding polymeric materials, and pelletizing polymeric materials; wherein prior to cleaning with carbon dioxide, material to be cleaned is exposed to a solvent comprising at least one C 1 -C 6 alkyl lactate.