Process and apparatus for purifying flammable gas

US5824122A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Gerd Baumgartel · Königsee, DE
• Herbert Tratz · Ottensoos, DE

Key dates

• Filing date: May 27, 1997
• Grant date: Oct 20, 1998
• Expiry date: May 27, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10K1/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

In a process and an apparatus for purifying flammable gas, in particular low-temperature carbonization gas, the gas is scrubbed and discharged as pure gas and condensate. The condensate is distilled in a distillation unit. Volatile constituents are admixed to the pure gas, so that the calorific value of the latter is increased. The non-volatile constituents are discharged. The non-volatile constituents can be fed to a low-temperature carbonization drum and carbonized therein at low temperature.