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US 2018/0320083 A1Published application
Method for producing coke, and coke
AssigneeKabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
InventorsMaki HAMAGUCHI, Shohei Wada
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Abstract
A method for producing a coke includes performing dry distillation of a mixture. The mixture includes: an ashless coal; an oxidized ashless coal obtained by an oxidation treatment of an ashless coal; and a raw petroleum coke. Relative to 100 parts by mass of a total of the ashless coal, the oxidized ashless coal and the raw petroleum coke, a content of the ashless coal is from 5 to 40 parts by mass, and a total content of the ashless coal and the oxidized ashless coal is from 30 to 70 parts by mass.
Claims8
1:
- A method for producing a coke, comprising performing dry distillation of a mixture containing:
- an ashless coal;
- an oxidized ashless coal obtained by an oxidation treatment of an ashless coal;
- and
- a raw petroleum coke,
- wherein, relative to 100 parts by mass of a total of the ashless coal, the oxidized ashless coal and the raw petroleum coke,
- a content of the ashless coal is from 5 to 40 parts by mass, and
- a total content of the ashless coal and the oxidized ashless coal is from 30 to 70 parts by mass.
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2:
- The method for producing a coke according to claim 1, wherein the mixture is subjected to forming, and then, the dry distillation is performed.
3:
- The method for producing a coke according to claim 1, wherein a percentage of increase in oxygen of the oxidized ashless coal is from 2 to 10%.
4:
- The method for producing a coke according to claim 1, wherein the oxidation treatment is an air oxidation.
5:
- The method for producing a coke according to claim 1, wherein the oxidation treatment is performed at a temperature of 150□C or more and less than an ignition point.
6:
- The method for producing a coke according to claim 1, wherein the dry distillation is performed in a chamber furnace.
7:
- The method for producing a coke according to claim 2, wherein the dry distillation is performed in a rotary kiln.
8:
- A coke produced by performing dry distillation of a mixture, the mixture containing:
- an ashless coal;
- an oxidized ashless coal obtained by an oxidation treatment of an ashless coal;
- and
- a raw petroleum coke,
- wherein, relative to 100 parts by mass of a total of the ashless coal, the oxidized ashless coal and the raw petroleum coke,
- a content of the ashless coal is from 5 to 40 parts by mass, and
- a total content of the ashless coal and the oxidized ashless coal is from 30 to 70 parts by mass.
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