Patent · US Expired

Method and apparatus for quenching hot flue gases

US6149137A · kind A · utility

39Cited by
19References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 2, 1998
Grant dateNov 21, 2000
Priority date
Expiry dateNov 2, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S261/54
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A quench system for cooling hot flue gases from combustion systems is disclosed. The quench system includes a venturi mounted in a quench vessel. The water level in the quench vessel may be raised or lowered in accordance with the flow rate of the gases to be quenched. When the pressure drop across the venturi is insufficient to achieve the desired cooling to adiabatic saturation temperature, the water level is increased so that the downcomer connected to the venturi is submerged and the additional pressure drop further cools the flue gases.

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