Fluid supply system including a pressure-swing adsorption plant
US4197096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Aug 22, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/40009
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid supply system includes a pressure-swing adsorption plant e.g. for supplying oxygen-rich gas to an activated sludge reactor in a sewage works. The product gas from the plant is supplied to the utilization apparatus by a compressor at a rate dependent on the demand for the gas, while waste gas is desorbed from the plant by a vacuum pump. When using the plant to separate oxygen from an air feedstock the major proportion of the power consumed by the plant is represented by the vacuum pump, which has to impell substantially greater volumes of gas than the product compressor. To economize on the power consumed by the plant, the rate of delivery of the vacuum pump is controlled by means sensitive to the demand of the utilization apparatus for product gas, so that a reduction in the demand from the product compressor leads to a reduction in the power consumption of the vacuum pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.