FIELD: petroleum processing.
SUBSTANCE: invention relates to fuel processing technology, in particular to production of metallurgical medium-temperature coke and associated gas via thermal-oxidative processing of coal in dense bed, and is designed to be employed in metallurgy. Thermal-oxidative processing is carried out at 750-900°C in shaft-type apparatus utilizing back hot wave effect. In this process, coal fraction 0-70 mm is used and specific air supply varies from 60 to 150 m3/(m2h) depending on the type of coal. Coke is cooled by means of forced gas circulation through circuit "apparatus-heat-exchanger" while usefully extracting heat energy.
EFFECT: increased strength and density of coke possessing low ash level and larger average size of piece, increased yield of coke and energetic efficiency.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METALLURGICAL SEMICOKE MANUFACTURING PROCESS | 2004 |
|
RU2275407C1 |
| METHOD OF THERMAL COAL ENRICHMENT | 2015 |
|
RU2637551C2 |
| COAL PROCESSING METHOD | 2018 |
|
RU2722557C2 |
| METHOD FOR COAL PROCESSING AND DEVICE FOR ITS IMPLEMENTATION | 2017 |
|
RU2673052C1 |
| METHOD OF COAL PROCESSING | 2008 |
|
RU2359006C1 |
| METHOD FOR MAKING GAS CARBON AND SYNTHESIS GAS IN COAL CONVERSION | 2007 |
|
RU2345116C1 |
| METHOD OF COAL CONVERSION | 2009 |
|
RU2401295C1 |
| METALLURGICAL MEDIUM-TEMPERATURE COKE PRODUCTION PROCESS | 2005 |
|
RU2285715C1 |
| METHOD FOR PRODUCING CARBON ADSORBENT | 1993 |
|
RU2014883C1 |
| METHOD OF PREPARING SEMICOKE | 2000 |
|
RU2169166C1 |
