Gas separation: processes – Liquid contacting – Organic gas – liquid particle – or solid particle sorbed
Patent
1995-03-28
1997-04-08
Chiesa, Richard L.
Gas separation: processes
Liquid contacting
Organic gas, liquid particle, or solid particle sorbed
55222, 55267, 55DIG46, 95288, 118326, 454 54, B01D 4705
Patent
active
056183330
ABSTRACT:
In the method of the instant invention, volatile organic compounds (VOCs) liberated in the course of solvent-based painting of a workpiece, are recovered. The atmosphere within a closed spray-booth is maintained at a fixed humidity such that vaporized water, supplied in the form of steam or nebulized water vapor, acts as a carrier for VOCs liberated in the course of spray painting or heat curing of a workpiece. The VOCs may be recovered continuously, including during the spray-painting or heat curing of the workpiece. The VOC laden, humidified air is circulated through a condenser such that VOCs dissolved in the water vapor condense and are directed to a recovery means. The water and solvent are separated, recovered and purified for re-use or placed in an appropriate container for disposal, thereby eliminating the usual practice of expelling VOC laden air into the atmosphere. The system is provided with a flame-free heat source to cure the painted workpiece and to guard against the danger of explosion.
REFERENCES:
patent: 4261707 (1981-04-01), Bradshaw et al.
patent: 4351863 (1982-09-01), Roesner
patent: 4444573 (1984-04-01), Cosper et al.
patent: 4469720 (1984-09-01), Morris
patent: 4537120 (1985-08-01), Josefsson
patent: 4620858 (1986-11-01), Bradshaw et al.
patent: 4750412 (1988-06-01), Itou
patent: 4927437 (1990-05-01), Richerson
patent: 5165969 (1992-11-01), Barlett et al.
Takao, I. "Organic Solvent Removing Device for Coating Booth with Dehumidifying and Humidifying Functions" Patent Abstracts of Japan, JP 6007635, 018(204), Apr. 11, 1994.
Jiyouji, I. "Painting Booth for Automatic Painting Machine" Patent Abstracts of Japan, JP 59199076, 009(066), Nov. 12, 1984.
Buchholz Loretta P.
Buchholz, Jr. LeRoy H.
LandOfFree
Method for volatile organic compound recycling does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for volatile organic compound recycling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for volatile organic compound recycling will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2395349