Metallgesellschaft Aktiengesellschaft

Paul D Becker

Paul Rudolph

Heinz Jockel

Manfred Kuhn

A process for reducing an ore which comprises:

Process of producing reducing gas from solid fuels

A process of treating aqueous condensate which is formed as a result of the cooling of raw gas produced by the gasification of solid fuels under a pressure of 5 to 150 bars. The condensate formed as a result of the cooling is at a temperature of at least 110.degree. C. and under a pressure of at least 2 bars and at least part of it is pressure-relieved. The flashed-off vapor is removed and the pressure-relieved condensate is fed to a separator, from which a condensate phase consisting mainly of water is withdrawn. The condensate or a portion thereof is used as a coolant for the raw gas. The flashed-off vapor may be burnt.

Process of treating pressurized condensate

An improvement in a known process and apparatus for gasifying coal with water vapor and oxygen under pressure and at elevated temperature wherein coal is dropped onto a grate within a reactor supplied with gasifying agent from below, product gas being withdrawn above. In accordance with the invention an annular wall depends from the reactor top to form an annular gas space through which product gas is withdrawn. The annular space surrounds the top of the coal bed so the coal is preheated thereby. The wall is provided with apertures so that at least 20% of the product gas enters the annular space by traversing that part of the coal bed surrounded by the wall. This results in reduced product gas velocity and entrainment of coal dust.

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Eschborn, Germany

Paul D Becker