Coke Oven Projects

Non Recovery Coke Oven
Non-recovery Coke Plants are originally referred to as Beehive Ovens, again the coal is carbonized in large oven chambers. The carbonization process takes place from the top by radiant heat transfer and from the bottom by conduction of heat through the sole floor. Primary air for combustion is introduced into the oven chamber through several ports located above the charge level in both pusher and coke side doors of the oven. Partially combusted gases exit the top chamber through "down comer" passages in the oven wall and enter the sole flue, thereby heating the sole of the oven. Combusted gases collect in a common tunnel and exit via a stack, which creates a natural draft in the oven. Since the by-products are not recovered, the process is called Non-Recovery coke making. In non-recovery coke ovens, coke oven slag and other by-products are sent to the battery where they are combusted. As the ovens operate under negative pressure and at a temperature at which all potential pollutants break down into combustible compounds, this technique consumes the by-products, eliminating much of the air and water pollution.

When the waste gas exits into a waste heat recovery boiler, which converts excess heat into steam for power generation, the process is called Heat Recovery Coke making.

MHL has tie up with Chinese design institute and suppliers who can in turn execute turnkey projects for Non Recovery Coke Oven also know as Heat Recovery Coke Oven.