Coke with excellent thermal properties and its preparation method
A technology of thermal properties and coke, applied in coke cooling, coke oven, petroleum industry, etc., can solve problems such as weak strength
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preparation example Construction
[0047] A method for preparing coke with excellent thermal properties, comprising the steps of:
[0048] Step 1: Weigh 1 / 3 coking coal, lean coal, main coking coal, mixed coal, fat coal, boric acid, borax, boron oxide, titanium boride, titanium dioxide, pitch, petroleum coke, tar residue, polypropylene according to parts by weight , aluminum fluoride and yttrium chloride;
[0049] Step 2: First mix 1 / 3 coking coal, lean coal, main coking coal, mixed coal and fat coal, then crush, then add boric acid, borax, boron oxide, titanium boride, titanium dioxide, pitch, petroleum coke, tar The slag, polypropylene, aluminum fluoride and yttrium chloride are stamped, and then carbonized and coked. The coking temperature is 950-1050 ° C, and the coking time is 18-20 hours to obtain red coke;
[0050] Step 3: adding quenching water to the red coke to quench the coke, and drying to obtain coke after quenching.
[0051] Table 2. Parameter table of preparation method of coke with excellent t...
Embodiment 3
[0098] Example 3 is superior to Comparative Examples 2 and 3 in terms of reactivity, post-reaction strength, ash content, sulfur content, crushing strength and abrasion resistance.
[0099] Comparative Example 4 is inferior to Comparative Examples 2 and 3 in both indicators of reactivity and post-reaction strength. It can be seen that both yttrium chloride and aluminum fluoride can reduce the reactivity and improve the strength after reaction. However, the combined use of yttrium chloride and aluminum fluoride leads to a reduction in reactivity and an increase in strength after the reaction than the sum of the reduction in reactivity and the increase in strength after the reaction when yttrium chloride and aluminum fluoride are used alone . Therefore, yttrium chloride and aluminum fluoride can produce complex effect in the present invention, increase the reduction degree of reactivity and the improvement degree of strength after reaction.
[0100] Comparative Example 4 is si...
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