Gasification of water-coal slurry for the production of synthetic ammonia – Calculation of the theoretical value of coal consumption per ton of ammonia produced
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As the title suggests, in the process of producing synthetic ammonia through water-coal slurry gasification, how is the theoretical value of coal consumption per ton of ammonia calculated? Based on the amount of hydrogen required for ammonia synthesis, is it approximately 1200 kg per ton of ammonia? I’m not sure if the values are correct
Calculations can be done through material balance: the amount of hydrogen required per ton of ammonia, where hydrogen equals the effective gas volume; then the calculation is carried out based on the coal consumption rate, and that gives the result
Thank you. Two methods were used for calculation; one of them was based on the carbon content and calorific value of coal, and the theoretical amount of raw coal required per ton of ammonia produced was approximately 990 kg； Using the method you mentioned, the calculation should yield 1008. Is 1000 around within the range of the theoretical value? Thank you :)
It’s usually 1.4-1.5 tons; hasn’t the loss been taken into account?
Without accounting for losses, the figure comes out to over 1400. After converting it using the calorific value, with a coefficient of 0.7143, the result is 1008.
I would like to ask how much hydrogen can be produced per ton of coal?
Let’s do the math: 2,200 cubic meters requires 1 ton of methanol. Roughly 1.5 tons of coal are needed per ton of methanol; you can calculate the rest by yourself :)