Patent · US Expired

Hybrid wet and dry electrostatic precipitator ammonia scrubber

US7311887B2 · kind B2 · utility

0Cited by
6References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 24, 2006
Grant dateDec 25, 2007
Priority date
Expiry dateFeb 24, 2026

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02A50/20
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A process reduces SOx emissions in a flue gas stream by adding a wet collector plate section to an existing electrostatic precipitator (ESP) or by converting the last field of an existing ESP to wet operation. To achieve the conversion, the last field or fields of an existing dry ESP are removed and replaced with components made from materials suitable for operation in a wet environment. After the ESP contains wet operation, ammonia is added to the flue gas stream while it is progressing through the collection plates in the ESP.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.