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Adding copper nitrate Cu(NO3)2 is known to activate the oxidation of coal and lignite. In the present work, the change in its activating properties with increase in the heating rate is studied. The Cu(NO3)2 is first dissolved in a 50/50 (by volume) mixture of ethyl alcohol and water. Then it is...
The catalytic steam gasification of Yanzhou (YZ) bituminous coal char loading with K2CO3 and CaO was studied in a fixed bed with 20 mm in inner diameter. The influence of K2CO3 on caking properties of Yanzhou bituminous coal was investigated. The relationship between carbon conversion and...
The thermooxidative coking of a coal bed on a moving chain grate (a conveyer) is studied mathematically and experimentally, with a view to the coking of coal unsuited to traditional coke ovens. A model of the temperature field in the coking bed is developed and compared with existing models. The...
The gross calorific value of coke is largely controllable. It may be increased by optimizing the following factors: the volatile matter from the batch, the ultimate composition of the batch (taking account of oxidation), its granulometric composition, the packing density of the charge in the...
The operation of two systems for utilizing excess gas in dry-quenching systems is described.
The crystalline and porous structure of pitch coke, petroleum coke, and shale coke for use as filler in the production of carbon materials is considered. Information is presented regarding the influence of the structure on the properties of the coke and the materials in which it is used as...
Problems arising in coke-battery operation are considered. The equivalent age of coke batteries may be determined by taking account of their technical state and their operating conditions and calculating the starting time for their major repair or complete reconstruction.
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