Method and apparatus for producing low sulfur metallized pellets

Details Method and apparatus for producing low sulfur metallized pellets Method and apparatus for producing low sulfur metallized pellets

1993-05-28

1994-08-23

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75496, 75627, 75629, 266 99, 266156, C21B 1302

Patent

active

053403789

ABSTRACT:
An improved method and apparatus for forming metallized iron by direct reduction of particulate iron oxide is disclosed. Spent reducing gas is recycled from the reduction furnace through a cooler-scrubber and a catalyst-containing stoichiometric gas reformer. Upon removing the process gas from the cooler-scrubber, it is contacted with a chlorine dioxide spray, then compressed and cooled, the sulfur compound removed, and the process gas recycled either into the furnace cooling zone, or directly into the reformer, or divided and directed into both uses. Thus, most of the sulfur containing components of the spent reducing gas are removed, thereby reducing the sulfur contamination of the gas reformer catalyst. Reducing sulfur contamination of the gas reformer catalyst improves the overall efficiency of the direct reduction process.

REFERENCES:
patent: 4900356 (1990-02-01), Hoffman
patent: 5008022 (1991-04-01), Leder

Affiliated with

Also associated with

Rating

Method and apparatus for producing low sulfur metallized pellets does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for producing low sulfur metallized pellets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing low sulfur metallized pellets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-499803