How to reduce the moisture content in coke

Reducing coke moisture: 1. Control the size of coke pores through coal blending and the heating regime in the coke oven; the number and size of these pores affect the water absorption capacity of the coke. 2. Strictly control the amount of water used, the time taken for coking quenching, and the uniformity of the coke on the quenching vehicle within the coking quenching process (ensuring uniform coke formation, proper movement of the quenching vehicle back and forth, and proper control of water usage by the vehicle), in order to prevent or reduce situations where large-scale water spraying is used for quenching. 3. Ensure that the coke is unloaded evenly from the cooling platform, and allow sufficient time for it to cool down. 4. The samples taken for testing coke moisture content must be representative, and they should be sent for analysis promptly.

Previously, we encountered issues with very poor tar quality, as the levels of moisture, density, toluene-insoluble substances, and ash were all above the specified limits. Since the water cannot be removed, a demulsifier is added to the tar to carry out cyclic dehydration.

Low-moisture coking technology, controllable to below 5%

4th floor, low-moisture coking – is there any red coke present?

By eliminating dry quenching, low-moisture quenching will definitely result in red coke; it’s possible to achieve a moisture level of four to five percent, but this causes significant damage to the coke oven

In the technique of quenching coke with low water levels, the key issue isn’t actually the problem of red coke; rather, splashing inside the quenching tower is what’s most difficult to handle.

Controlling the moisture level at 7% for low-moisture coking is absolutely no problem. If it is kept at 6–7% on the focus stage, there should be no red burning; at 4–6%, some areas may exhibit it.