Distillation: processes – thermolytic – And shaping to desired form or configuration – Prior to charging to carbonizing zone
Reexamination Certificate
2007-02-08
2010-06-08
Bhat, N. (Department: 1797)
Distillation: processes, thermolytic
And shaping to desired form or configuration
Prior to charging to carbonizing zone
C264S122000, C264S125000, C427S376100, C201S017000
Reexamination Certificate
active
07731821
ABSTRACT:
A method of reducing sulfur-containing gases during conversion of a coal slab into metallurgical coke is disclosed. A sulfur-reducing agent is added to a coal slab, which may contain compacted coal aggregate. The coal slab, including the sulfur-reducing agent, is heated to produce metallurgical coke, which results in a reduced amount of sulfur-containing gases relative to an amount of sulfur-containing gases that would be produced by converting the coal slab into metallurgical coke without adding the sulfur-reducing agent to the coal slab before the coal slab is heated. The sulfur-reducing agent may be applied as a coating to the coal slab. The sulfur-reducing agent may include at least one of calcium carbonate, limestone, lime, magnesium carbonate, magnesium oxide, and the like.
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Chati Harshrai Krishnarao
D'Lima Peter Francis Xavier
Kamat Gokuldas P.
Kim Yong-Wu
Banner & Witcoff , Ltd.
Bhat N.
Sesa Goa Limited
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