How much H2+N2 is consumed per ton of synthetic ammonia produced?
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Theoretically, 2100 cubic meters of CO + H2 are required per ton of methanol. How many cubic meters of N2 + H2 are needed per ton of synthetic ammonia, and how is this calculated? Thank you!
Theoretically, 2879 Nm3 of syngas is consumed per ton of ammonia. 2965 Nm3 of raw gas is consumed. Consumption of shifted gas: 4146 Nm3. 3300 Nm3 of semi-water gas is consumed. The consumption of synthetic ammonia is higher than that of methanol. The energy consumption limits for synthetic ammonia products are as follows: comprehensive energy consumption limit per ton (kilograms of standard coal/ton). For liquid anhydrous ammonia in 2008, it was 1680; in 2010, it was 1640; and in 2012, it was 1610. The amount of natural gas required per ton of ammonia produced depends on the process used. In the case of traditional Kilrogge plants, this amount is around 1000 Nm3. For smaller and medium-sized Kilrogge plants, it’s around 880 Nm3. When heat-exchange conversion is used, the value is around 820–830 Nm3. With two-stage conversion, the value can drop to as low as 760 Nm3, but this requires a certain amount of coal to generate steam. The natural gas energy-saving device is designed with a feed gas volume of 607 Nm3/t.NH3 and a fuel gas volume of 409 Nm3/t.NH3. Total energy consumption for methanol production (from coke oven gas), in kilograms of standard coal per ton: 1500 or 1490; or the specific energy consumption for producing a single molecule of methanol in new facilities should be no more than 1400