Apparatus for reclaiming and purifying chlorinated fluorocarbons

Patent · Tue Aug 15 04:00:00 EDT 1989

OSTI ID:5393378

Lofland, S G

This patent describes an apparatus for recovering and purifying contaminated CFC from a device containing it. It comprises: inlet means for connection to the device to receive contaminated CFC therefrom; a heated still for vaporizing contaminated CFC which is received in liquid form; a vapor dryer for receiving vapor from the still and drying it to remove non-CFC impurities therein and produce a dry vapor; a superheater for receiving the dry vapor and further heating it, to a temperature above its saturation point; a compressor for receiving superheated vapor from the superheater and compressing the same, thereby further heating the superheated vapor; a chamber for receiving the compressed heated vapor, the chamber adapted to permit noncondensable gases to separate physically from CFC in the vapor to be withdrawn therefrom; a condenser for receiving CFC vapor from the chamber and cooling the same to convert such CFC vapor to liquid; a sub cooler for receiving liquid CFC from the condenser and further cooling the same without revaporization; a drier coil in heat exchanging relation to the vapor drier and a line carrying liquid CFC from the condenser to the coil to heat the vapor drier; a still coil in heat exchanging relation to the still for heating incoming material therein, and a line for carrying liquid CFC from the drier coil to the still coil to heat the still, flow control means for reducing the rate of liquid CFC from the still coil; and outlet means for connection to a receiver for CFC so purified.

• Assignee: NOV; EDB-90-000423; NOV-89-081199
• Patent Number(s): US 4856289
• Application Number: PPN: US 7216894A
• OSTI ID: 5393378
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020800* -- Petroleum-- Waste Management
CHEMICAL REACTIONS
CHLORINATION
DESIGN
HALOGENATION
MANAGEMENT
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PROCESSING
PURIFICATION
SEPARATION EQUIPMENT
WASTE MANAGEMENT
WASTE PROCESSING