2023年8月31日 · Coke oven is the kiln used to refine coke with coal. It is known as the coke oven in short, which is the main thermal equipment for coking. Before the 1860s, coke was produced by stacks of carbonization kilns or beehive coke ovens (Fig. 1), which was characterized by serious environmental pollution, low thermal efficiency, and low coking rate.