Patent ID: 8617423
Filing Date: 2013-12-31
Classification: C01B

Abstract:
1. A method of making an H 2 - and CO-containing synthesis gas, the method comprising the steps of: (a) separating coke-oven gas from a coke-oven process into hydrogen and a residual gas stream containing hydrocarbons and CO, (b) obtaining charging a blast furnace with iron ore, oxygen, fuel and a carbon-containing reduction agent to process iron ore into iron, feeding CO (c) feeding the hydrogen separated from the coke-oven gas according to step (a) into the CO-rich synthesis gas stream drawn off from the top gas of the blast furnace according to step (b) to make the synthesis gas, and (d) feeding the residual gas stream containing hydrocarbons and CO separated from the coke oven gas according to step (a) into the blast furnace where the hydrocarbons serve as feedstock and the CO leads to an increase in the CO-rich synthesis gas stream drawn off from top gas from the blast furnace according to step (b), which is used to make the synthesis gas.