Process for removing undesirable constituents from a gas

US5482538A · kind A · utility

Assignee

• Mannesmann AG · DE

Inventors

• Oliver Becker · Ludwigsburg, DE
• Sabine Kolz · Großrosseln, DE
• Herbert Hager · Nalbach, DE

Key dates

• Filing date: Jun 24, 1994
• Grant date: Jan 9, 1996
• Expiry date: Jun 24, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D53/86
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for removing undesirable constituents from a gas, including providing an immovable, non-combustible woven adsorbate element, passing a flow of the gas through the element so that the gas is sharply deflected in the element and so that the constituents are adsorptively added to the element, interrupting the gas flow when the element reaches a maximum load of adsorbed constituents, directly heating the element while the gas flow is interrupted, by applying an electric voltage, to a process temperature of at 200.degree. C. for removing the adsorbed constituents at the adsorption point, intermittently supplying a gas flow after the process temperature is reached at intervals that ensure that the temperature of an inlet side of the adsorption element does not drop below the process temperature and the temperature of an outlet side of the adsorption element does not exceed a pre-defined maximum value, and discontinuing the heating so that the element cools to an operating temperature at which adsorption occurs.