Production of hot reducing gases by the conversion of methane with carbon dioxide
The continuous rise in the production of metal and the limited reserves of coking coal are making the question of saving coke increasingly urgent. In the blast-furnace smelting of iron, crude natural gas is used simultaneously with the enrichment of the blast with oxygen and the preheating of the blast to a temperature of 1100/degree/C. The main demand on the composition of the reducing gas for blast furnaces and for the direct production of iron from ores in special apparatuses is a low content of oxidizing agents (CO/sub 2/+H/sub 2/O). The use of reducing gases containing less than 5% of oxidizing agents at a temperature of 1200 - 1300/degree/C is the most economic process. In this paper the results are given of investigations on a laboratory apparatus for the carbon dioxide conversion of natural gas in a layer of inert filler, coke and anthracite. The influence of the CH/sub 4//CO/sub 2/ ratio and the temperature on the composition of the reducing gas has been shown. It is demonstrated that to obtain a reducing gas of the given composition, the conversion process must be performed at a CH/sub 4//CO/sub 2/ ratio of 1.2-1.4 and at a temperature no lower than 1200/degree/C. 6 refs.
- OSTI ID:
- 6495993
- Journal Information:
- Solid Fuel Chem. (Engl. Transl.); (United States), Vol. 16:1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Next Generation Metallic Iron Nodule Technology in Electric Arc Steelmaking - Phase II
Efficient Recovery of Copper and Cobalt from the Matte–Slag Mixture of ISA Furnace by Injection of Coke and Pyrite