System to quench gasses and remove condensables

US6312503A · kind A · utility

Assignee

• Arteva North America S.A.R.L. · CH

Inventors

• Lawrence Fike · Moore, US
• Torsten Schmidt · Chemnitz, DE
• Stephen Jonathan Freeman · Baytown, US
• Miguel Angel Osornio · Spartanburg, US
• Jorg Bartels · Niedernhausen, DE

Key dates

• Filing date: Oct 13, 1999
• Grant date: Nov 6, 2001
• Expiry date: Oct 13, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D47/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method and apparatus for quenching and scrubbing a hot gas using a liquid in a single packed column while controlling mist formation. Hot gas is introduced at the bottom of the column and drawn upward countercurrent to the scrubbing liquid. The column has three stages, each packed and fed liquid from above. The first stage is a quench region wherein the gas flow rate, liquid flow rate and liquid temperature are controlled such that the quench rate does not exceed 5.4.degree. C./ft.sup.2 of packing to prevent formation of an aerosol mist. The second and third stages for scrubbing employ packed regions separately supplied with increasingly cooler and purer liquid.