The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 1992
Filed:
Apr. 17, 1991
Jerald L Mestemaker, Vero Beach, FL (US);
Clyde G Anderson, Vero Beach, FL (US);
Calgon Carbon Corporation, Pittsburgh, PA (US);
Abstract
An environmentally-safe system and process for recovering solvents and disposing of contaminants released by regeneration of one or more solvent-laden air (SLA) adsorbers. The process begins with regeneration of the carbon in the adsorbers with low-pressure steam, and condensation/cooling of the resulting steam and reclaimed solvent/contaminant mixture. The mixture flows by gravity to a decanter for separation into two layers. From the decanter, the upper solvent-plus-contaminant layer flows to intermediate storage prior to further purification in a liquid extraction unit. The lower water-plus-contaminant layer flows to a water layer tank for further purification in a combined stripping and rectification system and, finally, either to the sewer or to an optional steam regeneration unit. The contaminants released by stripping and rectification are concentrated and then cleanly and essentially completely incinerated in a thermal oxidation system to produce environmentally safe incineration exhaust gases.