Abstract: A method of online control of a slag-forming process of gasification of a carbonaceous solid fuel, especially coal, in a gasification reactor with supply of a gasifying agent and a moderator is provided. Certain embodiments relate to a gasification process for producing a product gas including carbon monoxide and hydrogen from a solid fuel, to a computer program for online control of the slag-forming gasification process, and to a plant for conducting a gasification process for producing a product gas including carbon monoxide and hydrogen from a solid fuel. Certain aspects of the invention combine an online solid fuel analysis with a process model in order to operate a gasification process for solid fuels by the feed-forward principle at the thermodynamically optimal operating point. The invention permits the establishment of the operating point in real time in order to react to rapid variations in the composition of the solid fuel.

Abstract: A method of online control of a slag-forming process of gasification of a carbonaceous solid fuel, especially coal, in a gasification reactor with supply of a gasifying agent and a moderator is provided. Certain embodiments relate to a gasification process for producing a product gas including carbon monoxide and hydrogen from a solid fuel, to a computer program for online control of the slag-forming gasification process, and to a plant for conducting a gasification process for producing a product gas including carbon monoxide and hydrogen from a solid fuel. Certain aspects of the invention combine an online solid fuel analysis with a process model in order to operate a gasification process for solid fuels by the feed-forward principle at the thermodynamically optimal operating point. The invention permits the establishment of the operating point in real time in order to react to rapid variations in the composition of the solid fuel.

Abstract: 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.

Abstract: The invention relates to a process and apparatus for entrained flow gasification of solid fuels under pressure, characterized in that first and second gasification agents containing oxygen are supplied in at least two stages to a powdery gasification stream input from above without burners so that a first, upper gasification chamber and, connected to it, a second, lower gasification chamber are formed. There is partial gasification of the gasification materials because of the addition of the first gasification agents, which are apportioned in terms of quantity and composition; temperatures arise in the first, upper gasification chamber that are greater than 600° C. Furthermore, the carbon conversion of the first gasification products is limited to a maximum of 80% with reference to the carbon input of the gasification materials.

Abstract: 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.