Method of removing entrained particles from flue gas and composition of matter
US4738690A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1986 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Oct 8, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D51/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composition of matter is used to treat particles entrained in flue gas. The composition comprises a caustic liquid to adjust the resistivity of the entrained particles. An inert particulate matter supports the caustic liquid to inhibit the chemical action of the caustic liquid until used to adjust the resistivity of the entrained particles. The entrained particles are removed from the flue gas by choosing a caustic liquid to adjust the resistivity of the entrained particles. The caustic liquid is supported on inert particulate matter to inhibit the chemical action of the caustic liquid. The supported caustic liquid is supplied to untreated flue gas at a temperature sufficient to separate the caustic liquid from the inert particulate matter. The separated caustic liquid is mixed with the entrained particles so as to coat the entrained particles. The coated particles are then passed through an electrostatic precipitator to remove them from the flue gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.