Shaft gasifier for operating with hypostoichiometric oxidation

US9422491B2 · kind B2 · utility

Assignee

• BIG DUTCHMAN INTERNATIONAL GMBH · DE

Inventors

• Armin Schwarz · Sandy, US
• Wilfried Richter · Roßdorf, DE

Key dates

• Filing date: Mar 22, 2012
• Grant date: Aug 23, 2016
• Expiry date: Jan 30, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10J2300/1609
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a shaft gasifier for producing fuel gas from solid carbonaceous material. The shaft gasifier comprising a shaft wall surrounding a shaft gasifier interior, a pyrolysis zone disposed in the shaft gasifier interior, the pyrolysis zone comprising a solid material feed opening for feeding solid carbonaceous material into the shaft gasifier and a solid material discharge opening for discharging partially gasified solid carbonaceous material and a gas discharge opening for pyrolysis gas, an oxidation zone which is disposed in the shaft gasifier interior and which is in thermal contact with the pyrolysis zone, the oxidation zone comprising a gas feed opening connected to the gas discharge opening of the pyrolysis zone for discharging pyrolysis gas out of the pyrolysis zone, and a gas discharge opening. The oxidation zone is disposed between the pyrolysis zone and the shaft wall.