Abstract

The invention relates to a process and an apparatus for molten slag gasification of solid fuels in a molten slag gasifier with increased output, an increased range of solid fuels that can be used and improved gas quality. The process is conducted such that, by means of a molten slag gasifier comprising a feed of the coarse-grained solid fuels and comprising a gas takeoff, both at the head of the molten slag gasifier, comprising a slag bath and comprising a slag bath takeoff at the bottom of the molten slag gasifier, comprising a feed for first gasifying means by means of gasifying means nozzles above the slag bath, comprising a filling of the fixed bed above the slag bath, in addition to the first gasifying means a second gasifying means are injected by way of at least one gasifying means nozzle that reaches into the upper region of the fixed bed filling and is located at a vertical distance of at least 2 m above the feed of the first gasifying means, wherein the second oxygen-containing gasifying means is injected with steam-oxygen ratios of values between 0.6 and 5 kg/m3 (under standard temperature and pressure), wherein the amount of injected oxygen of the second gasifying means is up to 50% of the total amount of oxygen supplied.

IPC Classes  ?

• C10J 3/08 - Continuous processes with ash-removal in liquid state
• C10J 3/16 - Continuous processes simultaneously reacting oxygen and water with the carbonaceous material
• C10J 3/22 - Arrangements or dispositions of valves or flues

Goods & Services

Chemical products for use in industry; catalysts, namely for cleaning exhaust gases and flue gases.