Method for producing hydrogen and/or other gases from steel plant wastes and waste heat

摘要

A method for producing hydrogen and/or other gases from steel plant wastes and waste heat is disclosed. The method comprises the steps of providing molten waste from steel plant like molten slag in a reactor. The molten slag is contacted with water and/or steam in the presence of a reducing agent to form a stream of hydrogen and/or other gases. The hydrogen and/or other gases can then be extracted from the stream of gases from the reactor.

主权项

1. A method for producing hydrogen and/or other gases from steel plant wastes and waste heat, comprising the steps of:
removing molten slag from a steelmaking process as a waste product, wherein the molten slag is removed from the steelmaking process while in a heated condition such that the temperature of the removed molten slag is a waste heat of the steelmaking process; placing a hood over the removed molten slag that is in the heated condition, wherein the hood includes a water line; spraying, with water and/or steam from the water line, a surface of the removed molten slag while in the heated condition and in the presence of a reducing agent to use the waste heat available in the removed molten slag to form a stream of gases including hydrogen gas and carbon monoxide; passing the stream of gases through the hood; and separating hydrogen gas from the stream of gases passed through the hood, wherein a flux is added to the molten slag and the reducing agent for promoting the formation of hydrogen.