Automated system for recovery of VOC's from process air
US5389125A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Aug 20, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and method for removing volatile organic compounds (VOC's) from a circulating airstream utilizes first and second adsorption beds and first and second adsorption paths alternately coupling the circulating airstream to the respective first and second adsorption beds for removing VOC's during adsorption cycles. First and second desorption loops alternately couple a desorption inert gas through the respective first and second adsorption beds for desorption and regeneration and for recovering VOC's in a VOC condenser. System parameter sensors are distributed in the first and second adsorption paths and first and second desorption loops for sensing system parameters. A programmable controller is coupled to the system parameter sensors, to flow control valves, and to the inert gas heater for controlling the system in response to sensed system parameters. The system parameter sensors include a variety of temperature, O.sub.2, VOC, pressure, and differential pressure sensors. Separate flooding lines with controllable flooding valves couple the inert gas source to the first and second adsorption beds and desorption loops. The programmable controller is programmed to determine an al…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.