Gas purification

US4201751A · kind A · utility

Inventors

• Heinz Holter
• Heinz Gresch · Wickede (Ruhr), DE
• Heinrich Igelbuscher

Key dates

• Filing date: Oct 21, 1977
• Grant date: May 6, 1980
• Expiry date: Oct 21, 1997

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23G2201/303
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Pulverent solid sorption agent is injected into and, optionally, admixed with a stream of noxious-contaminant-containing gas and then separated from such gas. The solid sorption agent comprises an alkali-metal and/or alkaline-earth-metal compound and advantageously contains iron-III-oxide; such agent is preferably in the form of dust developed during production of iron or steel.