Is the ammonia nitrogen content in the residual ammonia water produced by coke ovens over 6 meters in length in the coking industry currently higher than that in the residual ammonia water produced by ovens of 4.3 meters and 5.5 meters in length?

2020-05-08View Original

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In our current work, we have found that in some coking plants, the ammonia nitrogen content in the residual ammonia water produced by coke ovens with a height of over 6 meters is higher than that in the residual ammonia water produced by ovens with heights of 4.3 meters and 5.5 meters, and the increase is significant. For example, in the past, the ammonia nitrogen level in the ammonia water from small coke ovens was generally around 4 g/L, whereas in the several ovens with a height of over 6 meters that we have encountered, the ammonia nitrogen level in the remaining ammonia water is above 8.5 g/L; in some cases it even exceeds 10 g/L. Dear experts, has anyone encountered this situation? What causes this?

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Is the ammonia nitrogen content in the residual ammonia water produced by coke ovens over 6 meters in length in the coking industry currently higher than that in the residual ammonia water produced by ovens of 4.3 meters and 5.5 meters in length?

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